Bug 12490
| Summary: | ath5k related kernel panic in 2.6.29-rc1 | ||
|---|---|---|---|
| Product: | Drivers | Reporter: | Rafael J. Wysocki (rjw) |
| Component: | network-wireless | Assignee: | Bob Copeland (me) |
| Status: | RESOLVED PATCH_ALREADY_AVAILABLE | ||
| Severity: | normal | CC: | linville, mcgrof, me, mickflemm, rathamahata, Sasha.Medvedev |
| Priority: | P1 | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Kernel Version: | 2.6.29-rc1 | Subsystem: | |
| Regression: | Yes | Bisected commit-id: | |
| Bug Depends on: | |||
| Bug Blocks: | 12398 | ||
| Attachments: |
ath5k: gracefully handle rate == NULL
ath5k: gracefully handle rate == NULL don't allow STAs with unsupported rates remerge of "don't allow STAs with unsupported rates" against 2.6.29-rc2 debug the rate tables more rates debugging full dmesg My config Bob's config |
||
|
Description
Rafael J. Wysocki
2009-01-19 08:37:16 UTC
Created attachment 19893 [details]
ath5k: gracefully handle rate == NULL
Hi, this fixes the BUG at the end, but the preceeding warnings indicate the root cause which is some sort of rate controller bug. Can you replicate it easily?
I'll check that as soon as I return home from my work - in about 6 hours or so... Unfortunately the patch doesn't apply neither to 2.6.28-rc{1,2} nor to the current git:
rathamahata@autonomist /usr/local/src/linux-2.6-test $ cat ../ath5k.patch | patch -p1
patching file drivers/net/wireless/ath5k/base.c
Hunk #1 FAILED at 1196.
Hunk #2 succeeded at 1936 (offset -32 lines).
Hunk #3 succeeded at 1969 (offset -32 lines).
1 out of 3 hunks FAILED -- saving rejects to file drivers/net/wireless/ath5k/base.c.rej
rathamahata@autonomist /usr/local/src/linux-2.6-test $ cat drivers/net/wireless/ath5k/base.c.rej
***************
*** 1196,1201 ****
PCI_DMA_TODEVICE);
rate = ieee80211_get_tx_rate(sc->hw, info);
if (info->flags & IEEE80211_TX_CTL_NO_ACK)
flags |= AR5K_TXDESC_NOACK;
--- 1196,1205 ----
PCI_DMA_TODEVICE);
rate = ieee80211_get_tx_rate(sc->hw, info);
+ if (!rate) {
+ ret = -EINVAL;
+ goto err_unmap;
+ }
if (info->flags & IEEE80211_TX_CTL_NO_ACK)
flags |= AR5K_TXDESC_NOACK;
rathamahata@autonomist /usr/local/src/linux-2.6-test $
> Unfortunately the patch doesn't apply neither to 2.6.28-rc{1,2} nor to the
current git:
Typo. s/2.6.28-rc/2.6.29-rc/
Sorry, it was against other changes I had in my tree. Note this will not fix the warnings, just the BUG at the end. Created attachment 19911 [details]
ath5k: gracefully handle rate == NULL
Sorry, it was against other changes I had in my tree. Here's a respin. Note this will not fix the warnings, just the BUG at the end. The rest seems to be a rate controller bug, unfortunately I won't be much help for that
>
> Sorry, it was against other changes I had in my tree. Here's a respin. Note
> this will not fix the warnings, just the BUG at the end. The rest seems to
> be
> a rate controller bug, unfortunately I won't be much help for that
>
Yes, the last patch fixes indeed the BUG for me. And yes, at least "WARNING: at net/mac80211/tx.c:567" is still here - but this warning doesn't add any visible effect besides warnings itself for me.
Thank you!
In minutes after I wrote previous comment I had been hit by another rate related BUG_ON(): ------------[ cut here ]------------ kernel BUG at net/mac80211/rate.c:239! invalid opcode: 0000 [#1] PREEMPT SMP last sysfs file: /sys/devices/LNXSYSTM:00/device:00/PNP0A03:00/device:1c/PNP0C0A:00/power_supply/BAT1/charge_full CPU 1 Modules linked in: Pid: 3548, comm: firefox-bin Not tainted 2.6.29-rc2 #1 RIP: 0010:[<ffffffff806295e2>] [<ffffffff806295e2>] rate_control_get_rate+0xb2/0xc0 RSP: 0000:ffff88003d88b8d8 EFLAGS: 00010286 RAX: 00000000ffffffff RBX: ffff88003c14b630 RCX: ffff88003d88b894 RDX: 0000000000000000 RSI: ffff88003c14b639 RDI: ffff88003d88b894 RBP: ffff88003ccb0680 R08: 0000000000000058 R09: 0000000000000001 R10: ffff88003c09c240 R11: 0000000000000046 R12: ffff88003d94e000 R13: ffff88003d88b9f8 R14: ffff88003ccb9a00 R15: ffff880030c3a098 FS: 00007f0bd2608750(0000) GS:ffff88003d805b00(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f0bbcb77fa0 CR3: 000000002dcb9000 CR4: 00000000000006e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process firefox-bin (pid: 3548, threadinfo ffff880034d80000, task ffff88003cdda160) Stack: ffff88003d88b9f8 ffff88003c14b600 ffff88003c14b630 ffffffff8062f4cd 7fffffffffffffff ffffffff80852460 ffff88003c14b600 7fffffff0000ffff ffffffff80852460 00000042971bc179 ffffffff8025f324 0000000000000286 Call Trace: <IRQ> <0> [<ffffffff8062f4cd>] ? invoke_tx_handlers+0x52d/0xe30 [<ffffffff8025f324>] ? tick_handle_oneshot_broadcast+0xc4/0x100 [<ffffffff8062ea66>] ? __ieee80211_tx_prepare+0x196/0x310 [<ffffffff80593900>] ? pskb_expand_head+0x110/0x180 [<ffffffff806310ca>] ? ieee80211_master_start_xmit+0x20a/0x4c0 [<ffffffff805ad156>] ? __qdisc_run+0x226/0x270 [<ffffffff8059be70>] ? dev_queue_xmit+0x2a0/0x5b0 [<ffffffff80630c63>] ? ieee80211_subif_start_xmit+0x3b3/0x610 [<ffffffff80240008>] ? disable_nonboot_cpus+0xf8/0x140 [<ffffffff805ad156>] ? __qdisc_run+0x226/0x270 [<ffffffff8059be70>] ? dev_queue_xmit+0x2a0/0x5b0 [<ffffffff805bfdae>] ? ip_queue_xmit+0x22e/0x430 [<ffffffff802baf63>] ? pollwake+0x43/0x50 [<ffffffff80238aa0>] ? default_wake_function+0x0/0x10 [<ffffffff805d363f>] ? tcp_transmit_skb+0x4bf/0x760 [<ffffffff805d2683>] ? tcp_rcv_state_process+0xb03/0xc00 [<ffffffff805d8e11>] ? tcp_v4_do_rcv+0xb1/0x210 [<ffffffff805d95e2>] ? tcp_v4_rcv+0x672/0x710 [<ffffffff805badc5>] ? ip_local_deliver_finish+0xb5/0x160 [<ffffffff805ba811>] ? ip_rcv_finish+0x121/0x340 [<ffffffff80212900>] ? nommu_map_single+0x0/0xa0 [<ffffffff8059ac1b>] ? netif_receive_skb+0x28b/0x370 [<ffffffff8059b260>] ? process_backlog+0x70/0xc0 [<ffffffff80599301>] ? net_rx_action+0x121/0x1e0 [<ffffffff80244403>] ? __do_softirq+0x73/0x130 [<ffffffff8020caac>] ? call_softirq+0x1c/0x30 [<ffffffff8020e475>] ? do_softirq+0x35/0x80 [<ffffffff802440ad>] ? irq_exit+0x8d/0xb0 [<ffffffff8020e6d3>] ? do_IRQ+0x83/0x110 [<ffffffff8020c353>] ? ret_from_intr+0x0/0xa <EOI> <0>Code: 08 48 83 c1 03 48 83 f9 0f 75 db 80 7b 08 00 78 1a 48 83 c4 08 5b 5d c3 90 48 8b 47 08 4c 89 c6 48 8b 7f 10 ff 50 40 66 90 eb af <0f> 0b eb fe 66 2e 0f 1f 84 00 00 00 00 00 48 83 c7 18 48 c7 c6 RIP [<ffffffff806295e2>] rate_control_get_rate+0xb2/0xc0 RSP <ffff88003d88b8d8> ---[ end trace 28d34917ba21fca1 ]--- Kernel panic - not syncing: Fatal exception in interrupt Well, that's unfriendly. Setting idx to -1 must trigger the BUG later which is a WARN_ON elsewhere. I suppose it would help to know: - Rate controller you are using? (=contents of /debug/ieee80211/phy0/rc/name if you have mac80211 debugging enabled) - Anything special about your setup, like which bands you are using (802.11a/b/g), which ones your AP allows, etc. Since you seem to be able to easily reproduce it, would you mind testing debug patches? Also does specifying a fixed rate help? "iwconfig wlan0 rate 1M fixed" (In reply to comment #9) > Well, that's unfriendly. Setting idx to -1 must trigger the BUG later which > is > a WARN_ON elsewhere. I suppose it would help to know: > > - Rate controller you are using? (=contents of /debug/ieee80211/phy0/rc/name > if minstrel > you have mac80211 debugging enabled) > - Anything special about your setup, like which bands you are using > (802.11a/b/g), which ones your AP allows, etc. That is just two ards in Ad-Hoc mode setup. Another one is usb rndis in my desktop: wlan0 IEEE802.11bg ESSID:"wahhab" Mode:Ad-Hoc Frequency:2.457 GHz Cell: F6:1B:A8:DF:5C:81 Bit Rate=54 Mb/s Tx-Power=14 dBm RTS thr=2347 B Fragment thr=2346 B Link Quality=93/100 Signal level=-36 dBm Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:0 Invalid misc:0 Missed beacon:0 Sorry, I don't know how to get any other information. > > Since you seem to be able to easily reproduce it, would you mind testing > debug > patches? Yes, I would like to test debug patches. > > Also does specifying a fixed rate help? "iwconfig wlan0 rate 1M fixed" > It seems that does help. Created attachment 19982 [details]
don't allow STAs with unsupported rates
Okay, please try this patch from Christian Lamparter.
Created attachment 19985 [details]
remerge of "don't allow STAs with unsupported rates" against 2.6.29-rc2
"don't allow STAs with unsupported rates" (id=19982) patch doesn't apply to 2.6.29-rc2 or current git as is. So I remerged it by hands (that was trivial). Remerged patch is attached - just was the record.
I've just rebooted my notebook with the remerged patch applied.
So far I haven't been able to reproduce any crash. But there are new warnings in my dmesg:
------------[ cut here ]------------
WARNING: at net/mac80211/rc80211_minstrel.c:69 minstrel_tx_status+0x9f/0x120()
Hardware name: Aspire 5100
Modules linked in:
Pid: 3433, comm: firefox-bin Not tainted 2.6.29-rc2 #1
Call Trace:
<IRQ> [<ffffffff8023e71a>] warn_slowpath+0xea/0x160
[<ffffffff802239fa>] ack_apic_level+0x1a/0x160
[<ffffffff80273172>] handle_fasteoi_irq+0xa2/0x100
[<ffffffff8024414c>] irq_exit+0x4c/0xb0
[<ffffffff8020e6d3>] do_IRQ+0x83/0x110
[<ffffffff802b7b33>] pollwake+0x43/0x50
[<ffffffff8020c353>] ret_from_intr+0x0/0xa
[<ffffffff806408c4>] _spin_unlock_irqrestore+0x4/0x30
[<ffffffff805c572e>] tcp_rcv_established+0x7ae/0x920
[<ffffffff805ccdad>] tcp_v4_do_rcv+0xdd/0x210
[<ffffffff8025c398>] getnstimeofday+0x58/0xe0
[<ffffffff80627fbf>] minstrel_tx_status+0x9f/0x120
[<ffffffff80610663>] ieee80211_tx_status+0x103/0x4c0
[<ffffffff804b0392>] ath5k_tasklet_tx+0x202/0x3a0
[<ffffffff80243919>] tasklet_action+0x59/0xd0
[<ffffffff802444e3>] __do_softirq+0x73/0x130
[<ffffffff8020caac>] call_softirq+0x1c/0x30
[<ffffffff8020e475>] do_softirq+0x35/0x80
[<ffffffff8024418d>] irq_exit+0x8d/0xb0
[<ffffffff8020e6d3>] do_IRQ+0x83/0x110
[<ffffffff8020c353>] ret_from_intr+0x0/0xa
<EOI> <4>---[ end trace 83ece8f886d377df ]---
------------[ cut here ]------------
WARNING: at net/mac80211/rc80211_minstrel.c:69 minstrel_tx_status+0x9f/0x120()
Hardware name: Aspire 5100
Modules linked in:
Pid: 3444, comm: firefox-bin Tainted: G W 2.6.29-rc2 #1
Call Trace:
<IRQ> [<ffffffff8023e71a>] warn_slowpath+0xea/0x160
[<ffffffff80624e9d>] ieee80211_subif_start_xmit+0x3bd/0x620
[<ffffffff8025173d>] queue_work_on+0x4d/0x60
[<ffffffff805a0f17>] __qdisc_run+0xd7/0x270
[<ffffffff803da213>] cpumask_next_and+0x23/0x40
[<ffffffff8023656a>] find_busiest_group+0x28a/0xa00
[<ffffffff804a6256>] ath5k_hw_get_isr+0x266/0x3e0
[<ffffffff804a5c34>] ath5k_hw_is_intr_pending+0x14/0x20
[<ffffffff80627fbf>] minstrel_tx_status+0x9f/0x120
[<ffffffff80610663>] ieee80211_tx_status+0x103/0x4c0
[<ffffffff804b0392>] ath5k_tasklet_tx+0x202/0x3a0
[<ffffffff80243919>] tasklet_action+0x59/0xd0
[<ffffffff802444e3>] __do_softirq+0x73/0x130
[<ffffffff8020caac>] call_softirq+0x1c/0x30
[<ffffffff8020e475>] do_softirq+0x35/0x80
[<ffffffff8024418d>] irq_exit+0x8d/0xb0
[<ffffffff8020e6d3>] do_IRQ+0x83/0x110
[<ffffffff8020c353>] ret_from_intr+0x0/0xa
<EOI> <4>---[ end trace 83ece8f886d377e0 ]---
------------[ cut here ]------------
WARNING: at net/mac80211/rc80211_minstrel.c:69 minstrel_tx_status+0x9f/0x120()
Hardware name: Aspire 5100
Modules linked in:
Pid: 0, comm: swapper Tainted: G W 2.6.29-rc2 #1
Call Trace:
<IRQ> [<ffffffff8023e71a>] warn_slowpath+0xea/0x160
[<ffffffff80624e9d>] ieee80211_subif_start_xmit+0x3bd/0x620
[<ffffffff80238aaf>] try_to_wake_up+0xff/0x1a0
[<ffffffff803da213>] cpumask_next_and+0x23/0x40
[<ffffffff803da213>] cpumask_next_and+0x23/0x40
[<ffffffff8025c398>] getnstimeofday+0x58/0xe0
[<ffffffff8023656a>] find_busiest_group+0x28a/0xa00
[<ffffffff8025c398>] getnstimeofday+0x58/0xe0
[<ffffffff80258570>] ktime_get_ts+0x30/0x60
[<ffffffff802585ac>] ktime_get+0xc/0x50
[<ffffffff80220805>] lapic_next_event+0x15/0x20
[<ffffffff8025fc36>] tick_dev_program_event+0x36/0xb0
[<ffffffff80627fbf>] minstrel_tx_status+0x9f/0x120
[<ffffffff80610663>] ieee80211_tx_status+0x103/0x4c0
[<ffffffff8020c4e3>] apic_timer_interrupt+0x13/0x20
[<ffffffff804b0392>] ath5k_tasklet_tx+0x202/0x3a0
[<ffffffff80243919>] tasklet_action+0x59/0xd0
[<ffffffff802444e3>] __do_softirq+0x73/0x130
[<ffffffff8020caac>] call_softirq+0x1c/0x30
[<ffffffff8020e475>] do_softirq+0x35/0x80
[<ffffffff8024418d>] irq_exit+0x8d/0xb0
[<ffffffff8020e6d3>] do_IRQ+0x83/0x110
[<ffffffff8020c353>] ret_from_intr+0x0/0xa
<EOI> <4>---[ end trace 83ece8f886d377e1 ]---
(In reply to comment #12) > Created an attachment (id=19985) [details] > remerge of "don't allow STAs with unsupported rates" against 2.6.29-rc2 > > "don't allow STAs with unsupported rates" (id=19982) patch doesn't apply to > 2.6.29-rc2 or current git as is. So I remerged it by hands (that was > trivial). > Remerged patch is attached - just was the record. Hmm oops I rebased the patch on .28. Anyway, I think it only works for AP mode, not adhoc, so another one should be on the way soon. (In reply to comment #13) ... > Hmm oops I rebased the patch on .28. Anyway, I think it only works for AP > mode, not adhoc, so another one should be on the way soon. > Yes, it looks like your theory (about adhoc) have just been proved by another oops: ------------[ cut here ]------------ Kernel BUG at ffffffff806235a2 [verbose debug info unavailable] invalid opcode: 0000 [#1] PREEMPT SMP last sysfs file: /sys/devices/LNXSYSTM:00/device:00/PNP0A03:00/device:1c/PNP0C0A:00/power_supply/BAT1/charge_full CPU 0 Modules linked in: Pid: 3491, comm: firefox-bin Tainted: G W 2.6.29-rc2 #2 RIP: 0010:[<ffffffff806235a2>] [<ffffffff806235a2>] rate_control_get_rate+0xb2/0xc0 RSP: 0018:ffff880031c99908 EFLAGS: 00010282 RAX: 00000000ffffffff RBX: ffff880031dd9b40 RCX: ffff880031c998c4 RDX: 0000000000000000 RSI: ffff880031dd9b49 RDI: ffff880031c998c4 RBP: ffff88003cca9680 R08: 0000000000000058 R09: 0000000000000001 R10: ffff88003c083ea0 R11: 0000000000000025 R12: ffff88003b422000 R13: ffff880031c99a28 R14: ffff88003cc29a00 R15: ffff88002e5eec84 FS: 00007ff1152ff950(0000) GS:ffffffff80852040(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: 00007ff10ba35c58 CR3: 00000000348a8000 CR4: 00000000000006e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process firefox-bin (pid: 3491, threadinfo ffff880031c98000, task ffff88003cd010b0) Stack: ffff880031c99a28 ffff880031dd9b10 ffff880031dd9b40 ffffffff806295ed 0000000000000000 ffff88003cc2cb90 ffff880031dd9b10 ffffffff00005aa1 ffff880031dd8480 ffff88003ccbab60 ffff88003cc2cb98 0000000000000282 Call Trace: [<ffffffff806295ed>] ? invoke_tx_handlers+0x52d/0xe30 [<ffffffff80628b76>] ? __ieee80211_tx_prepare+0x196/0x320 [<ffffffff8058d6c0>] ? pskb_expand_head+0x110/0x180 [<ffffffff8062b1fa>] ? ieee80211_master_start_xmit+0x20a/0x4d0 [<ffffffff805a6f36>] ? __qdisc_run+0x226/0x270 [<ffffffff80595c50>] ? dev_queue_xmit+0x2a0/0x5b0 [<ffffffff8062ad8d>] ? ieee80211_subif_start_xmit+0x3bd/0x620 [<ffffffff802b6992>] ? do_sys_poll+0x372/0x430 [<ffffffff805a6f36>] ? __qdisc_run+0x226/0x270 [<ffffffff80595c50>] ? dev_queue_xmit+0x2a0/0x5b0 [<ffffffff805b9b8e>] ? ip_queue_xmit+0x22e/0x430 [<ffffffff802a3655>] ? kmem_cache_alloc+0x65/0xa0 [<ffffffff805b1921>] ? __ip_route_output_key+0x191/0xb00 [<ffffffff805cd47f>] ? tcp_transmit_skb+0x4bf/0x760 [<ffffffff805cdfa4>] ? tcp_connect+0x364/0x440 [<ffffffff805d440c>] ? tcp_v4_connect+0x41c/0x4f0 [<ffffffff805e10c8>] ? inet_stream_connect+0x228/0x2d0 [<ffffffff802a3655>] ? kmem_cache_alloc+0x65/0xa0 [<ffffffff802a825e>] ? fget_light+0xce/0xe0 [<ffffffff80585616>] ? sys_connect+0x86/0xe0 [<ffffffff802a4fff>] ? fd_install+0x2f/0x60 [<ffffffff80585a34>] ? sock_map_fd+0x54/0x90 [<ffffffff802a82ee>] ? fget+0x7e/0xa0 [<ffffffff8020ba1b>] ? system_call_fastpath+0x16/0x1b Code: 08 48 83 c1 03 48 83 f9 0f 75 db 80 7b 08 00 78 1a 48 83 c4 08 5b 5d c3 90 48 8b 47 08 4c 89 c6 48 8b 7f 10 ff 50 40 66 90 eb af <0f> 0b 0f 1f 40 00 eb fa 66 0f 1f 44 00 00 48 83 c7 18 48 c7 c6 RIP [<ffffffff806235a2>] rate_control_get_rate+0xb2/0xc0 RSP <ffff880031c99908> ---[ end trace f15625ddd27732c4 ]--- Kernel panic - not syncing: Fatal exception in interrupt Created attachment 20022 [details]
debug the rate tables
Ok, not 100% sure the AP case is similar -- since ibss always adds the default rates. Here's some debugging statements to help pin it down - it should dump hopefully useful info when the warn_on triggers.
On Tuesday 20 January 2009, Bob Copeland wrote:
> On Mon, Jan 19, 2009 at 10:32:14PM +0100, Rafael J. Wysocki wrote:
> > This message has been generated automatically as a part of a report
> > of recent regressions.
> >
> > The following bug entry is on the current list of known regressions
> > from 2.6.28. Please verify if it still should be listed and let me know
> > (either way).
>
> Yeah I think it should, though it seems to be a rate controller bug and
> not specific to ath5k.
Below is another oops from kernel with all patches applied: ------------[ cut here ]------------ Kernel BUG at ffffffff80622db2 [verbose debug info unavailable] invalid opcode: 0000 [#1] PREEMPT SMP last sysfs file: /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_governors CPU 1 Modules linked in: Pid: 3540, comm: pdnsd Not tainted 2.6.29-rc2 #3 RIP: 0010:[<ffffffff80622db2>] [<ffffffff80622db2>] rate_control_get_rate+0xb2/0xc0 RSP: 0018:ffff880024067858 EFLAGS: 00010286 RAX: 00000000ffffffff RBX: ffff88003c8fe730 RCX: ffff880024067814 RDX: 0000000000000000 RSI: ffff88003c8fe739 RDI: ffff880024067814 RBP: ffff88003d948680 R08: 0000000000000058 R09: 0000000000000001 R10: ffff88003bd1fde0 R11: 0000000000000078 R12: ffff88003c8fe700 R13: ffff880024067978 R14: ffff88003c8fe730 R15: ffff88003ccf9a00 FS: 00007f2955423950(0000) GS:ffff88003d805b00(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f0c3ff2f008 CR3: 000000003b1fd000 CR4: 00000000000006e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process pdnsd (pid: 3540, threadinfo ffff880024066000, task ffff88002a8bb7a0) Stack: ffff880024067978 0000000000000000 ffff88002eea7c30 ffffffff80628dfd 00000000ffffffff ffff88003ccfcb90 ffff88003c8fe700 ffffffff00000020 ffff88003c8fe930 ffff88003d944a40 ffff88003ccfcb98 0000000000000282 Call Trace: [<ffffffff80628dfd>] ? invoke_tx_handlers+0x52d/0xed0 [<ffffffff80628386>] ? __ieee80211_tx_prepare+0x196/0x320 [<ffffffff8058d0d0>] ? pskb_expand_head+0x110/0x180 [<ffffffff8062aaab>] ? ieee80211_master_start_xmit+0x20b/0x4e0 [<ffffffff80231648>] ? update_curr+0xc8/0x130 [<ffffffff805a6916>] ? __qdisc_run+0x226/0x270 [<ffffffff80595640>] ? dev_queue_xmit+0x2a0/0x5b0 [<ffffffff8062a63d>] ? ieee80211_subif_start_xmit+0x3bd/0x620 [<ffffffff8062e69b>] ? csum_partial_copy_from_user+0x6b/0x100 [<ffffffff805a6916>] ? __qdisc_run+0x226/0x270 [<ffffffff80595640>] ? dev_queue_xmit+0x2a0/0x5b0 [<ffffffff805b8f2c>] ? ip_push_pending_frames+0x2dc/0x440 [<ffffffff805d7ae4>] ? udp_push_pending_frames+0x134/0x3e0 [<ffffffff805d9539>] ? udp_sendmsg+0x329/0x700 [<ffffffff805857bb>] ? sock_sendmsg+0xcb/0x100 [<ffffffff805b1301>] ? __ip_route_output_key+0x191/0xb00 [<ffffffff80254f60>] ? autoremove_wake_function+0x0/0x30 [<ffffffff805b1c89>] ? ip_route_output_flow+0x19/0x70 [<ffffffff802a815e>] ? fget_light+0xce/0xe0 [<ffffffff80584d62>] ? sockfd_lookup_light+0x22/0x90 [<ffffffff80585c79>] ? sys_sendto+0x119/0x180 [<ffffffff80585095>] ? sys_connect+0xd5/0xe0 [<ffffffff802a4eff>] ? fd_install+0x2f/0x60 [<ffffffff8020ba1b>] ? system_call_fastpath+0x16/0x1b Code: 08 48 83 c1 03 48 83 f9 0f 75 db 80 7b 08 00 78 1a 48 83 c4 08 5b 5d c3 90 48 8b 47 08 4c 89 c6 48 8b 7f 10 ff 50 40 66 90 eb af <0f> 0b 0f 1f 40 00 eb fa 66 0f 1f 44 00 00 48 83 c7 18 48 c7 c6 RIP [<ffffffff80622db2>] rate_control_get_rate+0xb2/0xc0 RSP <ffff880024067858> ---[ end trace 7b744176834faae3 ]--- Kernel panic - not syncing: Fatal exception in interrupt And below is warning produced with "rate 1M fixed" ------------[ cut here ]------------ WARNING: at net/mac80211/tx.c:567 invoke_tx_handlers+0xe9a/0xed0() Hardware name: Aspire 5100 Modules linked in: Pid: 0, comm: swapper Not tainted 2.6.29-rc2 #3 Call Trace: <IRQ> [<ffffffff8023e5ca>] warn_slowpath+0xea/0x160 [<ffffffff80258420>] ktime_get_ts+0x30/0x60 [<ffffffff8025c238>] getnstimeofday+0x58/0xe0 [<ffffffff80258420>] ktime_get_ts+0x30/0x60 [<ffffffff8025845c>] ktime_get+0xc/0x50 [<ffffffff8025c238>] getnstimeofday+0x58/0xe0 [<ffffffff80258420>] ktime_get_ts+0x30/0x60 [<ffffffff804a9a06>] ath5k_hw_get_isr+0x266/0x3e0 [<ffffffff804a93e4>] ath5k_hw_is_intr_pending+0x14/0x20 [<ffffffff804b1e97>] ath5k_intr+0xd7/0x280 [<ffffffff804a971d>] ath5k_hw_start_tx_dma+0xfd/0x140 [<ffffffff8062976a>] invoke_tx_handlers+0xe9a/0xed0 [<ffffffff80628386>] __ieee80211_tx_prepare+0x196/0x320 [<ffffffff8058d0d0>] pskb_expand_head+0x110/0x180 [<ffffffff8062aaab>] ieee80211_master_start_xmit+0x20b/0x4e0 [<ffffffff805a6916>] __qdisc_run+0x226/0x270 [<ffffffff80595640>] dev_queue_xmit+0x2a0/0x5b0 [<ffffffff8062a63d>] ieee80211_subif_start_xmit+0x3bd/0x620 [<ffffffff805a6916>] __qdisc_run+0x226/0x270 [<ffffffff80595640>] dev_queue_xmit+0x2a0/0x5b0 [<ffffffff805b954e>] ip_queue_xmit+0x22e/0x430 [<ffffffff806259cb>] ieee80211_deliver_skb+0xbb/0x1b0 [<ffffffff80625ec9>] ieee80211_invoke_rx_handlers+0x409/0x15d0 [<ffffffff80238a20>] default_wake_function+0x0/0x10 [<ffffffff805cce1f>] tcp_transmit_skb+0x4bf/0x760 [<ffffffff805caf9a>] tcp_rcv_established+0x79a/0x920 [<ffffffff805d260d>] tcp_v4_do_rcv+0xdd/0x210 [<ffffffff805d2db2>] tcp_v4_rcv+0x672/0x710 [<ffffffff805b4575>] ip_local_deliver_finish+0xb5/0x160 [<ffffffff805b3fd1>] ip_rcv_finish+0x121/0x340 [<ffffffff802128b0>] nommu_map_single+0x0/0xa0 [<ffffffff805943fb>] netif_receive_skb+0x28b/0x370 [<ffffffff80594a40>] process_backlog+0x70/0xc0 [<ffffffff80592ae1>] net_rx_action+0x121/0x1e0 [<ffffffff80244393>] __do_softirq+0x73/0x130 [<ffffffff80223940>] ack_apic_level+0x40/0x100 [<ffffffff8020caac>] call_softirq+0x1c/0x30 [<ffffffff8020e475>] do_softirq+0x35/0x80 [<ffffffff8024403d>] irq_exit+0x8d/0xb0 [<ffffffff8020e6d3>] do_IRQ+0x83/0x110 [<ffffffff8020c353>] ret_from_intr+0x0/0xa <EOI> <4>---[ end trace 62822c38c6c1ba2f ]--- rc_bug: bad rate 1 56 (n_b 12) rc_bug: rate 0 0 rc_bug: rate 1 56 rc_bug: rate 2 0 rc_bug: rate 3 0 rc_bug: rate 4 -1 rc_bug: bad rate 1 56 (n_b 12) rc_bug: rate 0 0 rc_bug: rate 1 56 rc_bug: rate 2 0 rc_bug: rate 3 0 rc_bug: rate 4 -1 rc_bug: bad rate 1 38 (n_b 12) rc_bug: rate 0 0 rc_bug: rate 1 38 rc_bug: rate 2 0 rc_bug: rate 3 0 rc_bug: rate 4 -1 rc_bug: bad rate 1 55 (n_b 12) rc_bug: rate 0 0 rc_bug: rate 1 55 rc_bug: rate 2 0 rc_bug: rate 3 0 rc_bug: rate 4 -1 rc_bug: bad rate 1 110 (n_b 12) rc_bug: rate 0 0 rc_bug: rate 1 110 rc_bug: rate 2 0 rc_bug: rate 3 0 rc_bug: rate 4 -1 ath5k phy0: unsupported jumbo Wow, the rate indexes look like rates themselves. Hmm... Ok I still have no idea what is going on, I thought perhaps we are using bitrate value instead of rate index somewhere, but I didn't see such a thing. The minstrel maintainer is looking into this too. In the meantime I cooked up another debug patch which will at least debug the rate tables we send/recv. Created attachment 20270 [details]
more rates debugging
This will add tons of debug output, but hopefully will show what happens when the rc selects out of bound rate indexes.
Created attachment 20323 [details]
full dmesg
Here is full dmesg for 2.6.29-rc5 with all patches applied.
Great, thanks. So the debug log pretty much absolves ath5k of blame. But the rate index that minstrel is choosing is nonsensical, it looks like memory corruption perhaps. Can you post your config? And can you try some of the slab debugging options? On Tuesday 24 February 2009, Bob Copeland wrote:
> On Mon, Feb 23, 2009 at 10:48:05PM +0100, Rafael J. Wysocki wrote:
> > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12490
> > Subject : ath5k related kernel panic in 2.6.29-rc1
> > Submitter : Sergey S. Kostyliov <rathamahata@gmail.com>
> > Date : 2009-01-12 7:38 (43 days old)
> > References : http://marc.info/?l=linux-kernel&m=123174591509586&w=4
> > Handled-By : Bob Copeland <me@bobcopeland.com>
>
> Still unsolved, looks like some kind of memory corruption.
Created attachment 20376 [details] My config u post your config? (In reply to comment #23) > Great, thanks. So the debug log pretty much absolves ath5k of blame. But > the > rate index that minstrel is choosing is nonsensical, it looks like memory > corruption perhaps. Can you post your config? Sure, here it is. > And can you try some of the slab debugging options? I'll try... I notice you don't have CONFIG_MODVERSIONS enabled -- can you try that and report back? It's under "Enable loadable module support -> Module versioning support". Also the slab/slub debugging options are under the "Kernel Hacking" menu. Do I still need all debug patches mentioned early to be applied? Nope, you can drop all of them. Ok. I have enabled CONFIG_MODVERSIONS and slub debuging. I.e.: rathamahata@autonomist /usr/local/src/linux-2.6.29-rc6 $ grep CONFIG_MODVERSIONS .config CONFIG_MODVERSIONS=y rathamahata@autonomist /usr/local/src/linux-2.6.29-rc6 $ grep SLUB_DEBUG .config CONFIG_SLUB_DEBUG=y CONFIG_SLUB_DEBUG_ON=y rathamahata@autonomist /usr/local/src/linux-2.6.29-rc6 Is there any other options I should turn on? Below is full last 2.6.29-rc6 dmesg including an oops; Linux version 2.6.29-rc6 (rathamahata@autonomist.ath.cx) (gcc version 4.3.3 (Gentoo 4.3.3 p1.0, pie-10.1.5) ) #1 SMP PREEMPT Fri Feb 27 00:41:58 MSK 2009 Command line: BOOT_IMAGE=/boot/linux-2.6.29-rc6 root=/dev/sda2 rootflags=commit=11 elevator=deadline netconsole=6666@192.168.168.2/eth0,6667@192.168.168.1/00:13:8f:e0:34:f5 KERNEL supported cpus: Intel GenuineIntel AMD AuthenticAMD Centaur CentaurHauls BIOS-provided physical RAM map: BIOS-e820: 0000000000000000 - 000000000009dc00 (usable) BIOS-e820: 000000000009dc00 - 00000000000a0000 (reserved) BIOS-e820: 00000000000d0000 - 0000000000100000 (reserved) BIOS-e820: 0000000000100000 - 000000003de80000 (usable) BIOS-e820: 000000003de80000 - 000000003de97000 (ACPI data) BIOS-e820: 000000003de97000 - 000000003df00000 (ACPI NVS) BIOS-e820: 000000003df00000 - 0000000040000000 (reserved) BIOS-e820: 00000000e0000000 - 00000000f0000000 (reserved) BIOS-e820: 00000000fec00000 - 00000000fec10000 (reserved) BIOS-e820: 00000000fee00000 - 00000000fee01000 (reserved) BIOS-e820: 00000000fff80000 - 0000000100000000 (reserved) DMI present. last_pfn = 0x3de80 max_arch_pfn = 0x100000000 x86 PAT enabled: cpu 0, old 0x7040600070406, new 0x7010600070106 init_memory_mapping: 0000000000000000-000000003de80000 last_map_addr: 3de80000 end: 3de80000 ACPI: RSDP 000F7D80, 0014 (r0 ACRSYS) ACPI: RSDT 3DE8E70B, 0038 (r1 ACRSYS ACRPRDCT 6040000 LTP 0) ACPI: FACP 3DE96C04, 0074 (r1 ATI Bowfin 6040000 ATI F4240) FADT: X_PM1a_EVT_BLK.bit_width (16) does not match PM1_EVT_LEN (4) FADT: X_PM1b_EVT_BLK.bit_width (16) does not match PM1_EVT_LEN (4) ACPI: DSDT 3DE8E743, 84C1 (r1 Acer Navarro 6040000 MSFT 3000000) ACPI: FACS 3DE97FC0, 0040 ACPI: SLIC 3DE96C78, 0176 (r1 ACRSYS ACRPRDCT 6040000 LOHR 0) ACPI: APIC 3DE96DEE, 0054 (r1 PTLTD APIC 6040000 LTP 0) ACPI: MCFG 3DE96E42, 003C (r1 PTLTD MCFG 6040000 LTP 0) ACPI: SSDT 3DE96E7E, 0182 (r1 PTLTD POWERNOW 6040000 LTP 1) (5 early reservations) ==> bootmem [0000000000 - 003de80000] #0 [0000000000 - 0000001000] BIOS data page ==> [0000000000 - 0000001000] #1 [0000006000 - 0000008000] TRAMPOLINE ==> [0000006000 - 0000008000] #2 [0000200000 - 00008aaff4] TEXT DATA BSS ==> [0000200000 - 00008aaff4] #3 [000009dc00 - 0000100000] BIOS reserved ==> [000009dc00 - 0000100000] #4 [0000008000 - 0000009000] PGTABLE ==> [0000008000 - 0000009000] found SMP MP-table at [ffff8800000f7e40] 000f7e40 Zone PFN ranges: DMA 0x00000000 -> 0x00001000 DMA32 0x00001000 -> 0x00100000 Normal 0x00100000 -> 0x00100000 Movable zone start PFN for each node early_node_map[2] active PFN ranges 0: 0x00000000 -> 0x0000009d 0: 0x00000100 -> 0x0003de80 SB4X0 revision 0x83 Ignoring ACPI timer override. If you got timer trouble try acpi_use_timer_override Detected use of extended apic ids on hypertransport bus ACPI: PM-Timer IO Port: 0x8008 ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled) ACPI: LAPIC (acpi_id[0x01] lapic_id[0x01] enabled) ACPI: LAPIC_NMI (acpi_id[0x00] high edge lint[0x1]) ACPI: LAPIC_NMI (acpi_id[0x01] high edge lint[0x1]) ACPI: IOAPIC (id[0x02] address[0xfec00000] gsi_base[0]) IOAPIC[0]: apic_id 2, version 0, address 0xfec00000, GSI 0-23 Using ACPI (MADT) for SMP configuration information SMP: Allowing 2 CPUs, 0 hotplug CPUs PM: Registered nosave memory: 000000000009d000 - 000000000009e000 PM: Registered nosave memory: 000000000009e000 - 00000000000a0000 PM: Registered nosave memory: 00000000000a0000 - 00000000000d0000 PM: Registered nosave memory: 00000000000d0000 - 0000000000100000 Allocating PCI resources starting at 50000000 (gap: 40000000:a0000000) NR_CPUS:2 nr_cpumask_bits:2 nr_cpu_ids:2 nr_node_ids:1 PERCPU: Allocating 49152 bytes of per cpu data Built 1 zonelists in Zone order, mobility grouping on. Total pages: 248192 Kernel command line: BOOT_IMAGE=/boot/linux-2.6.29-rc6 root=/dev/sda2 rootflags=commit=11 elevator=deadline netconsole=6666@192.168.168.2/eth0,6667@192.168.168.1/00:13:8f:e0:34:f5 Initializing CPU#0 Preemptible RCU implementation. PID hash table entries: 4096 (order: 12, 32768 bytes) Fast TSC calibration using PIT Detected 1595.711 MHz processor. Console: colour VGA+ 80x25 console [tty0] enabled Dentry cache hash table entries: 131072 (order: 8, 1048576 bytes) Inode-cache hash table entries: 65536 (order: 7, 524288 bytes) Checking aperture... No AGP bridge found Node 0: aperture @ cff0000000 size 32 MB Aperture beyond 4GB. Ignoring. Memory: 990376k/1014272k available (4464k kernel code, 396k absent, 22912k reserved, 1648k data, 328k init) SLUB: Genslabs=12, HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1 Calibrating delay loop (skipped), value calculated using timer frequency.. 3191.42 BogoMIPS (lpj=1595711) Mount-cache hash table entries: 256 CPU: L1 I Cache: 64K (64 bytes/line), D cache 64K (64 bytes/line) CPU: L2 Cache: 512K (64 bytes/line) CPU: Physical Processor ID: 0 CPU: Processor Core ID: 0 using C1E aware idle routine ACPI: Core revision 20081204 Setting APIC routing to flat ..TIMER: vector=0x30 apic1=0 pin1=0 apic2=-1 pin2=-1 CPU0: AMD Turion(tm) 64 X2 Mobile Technology TL-52 stepping 02 Booting processor 1 APIC 0x1 ip 0x6000 Initializing CPU#1 Calibrating delay using timer specific routine.. 3191.40 BogoMIPS (lpj=1595704) CPU: L1 I Cache: 64K (64 bytes/line), D cache 64K (64 bytes/line) CPU: L2 Cache: 512K (64 bytes/line) CPU: Physical Processor ID: 0 CPU: Processor Core ID: 1 x86 PAT enabled: cpu 1, old 0x7040600070406, new 0x7010600070106 CPU1: <6>System has AMD C1E enabled Switch to broadcast mode on CPU1 AMD Turion(tm) 64 X2 Mobile Technology TL-52 stepping 02 Brought up 2 CPUs Total of 2 processors activated (6382.83 BogoMIPS). Switch to broadcast mode on CPU0 net_namespace: 936 bytes NET: Registered protocol family 16 TOM: 0000000040000000 aka 1024M ACPI: bus type pci registered PCI: MCFG configuration 0: base e0000000 segment 0 buses 0 - 7 PCI: MCFG area at e0000000 reserved in E820 PCI: Using MMCONFIG at e0000000 - e07fffff PCI: Using configuration type 1 for base access bio: create slab <bio-0> at 0 ACPI: BIOS _OSI(Linux) query ignored ACPI: Interpreter enabled ACPI: (supports S0 S3 S4 S5) ACPI: Using IOAPIC for interrupt routing ACPI: EC: non-query interrupt received, switching to interrupt mode ACPI: EC: GPE = 0x10, I/O: command/status = 0x66, data = 0x62 ACPI: EC: driver started in interrupt mode ACPI: No dock devices found. ACPI: PCI Root Bridge [PCI0] (0000:00) pci 0000:00:04.0: PME# supported from D0 D3hot D3cold pci 0000:00:04.0: PME# disabled pci 0000:00:05.0: PME# supported from D0 D3hot D3cold pci 0000:00:05.0: PME# disabled pci 0000:00:13.2: PME# supported from D0 D1 D2 D3hot pci 0000:00:13.2: PME# disabled HPET not enabled in BIOS. You might try hpet=force boot option pci 0000:00:14.2: PME# supported from D0 D3hot D3cold pci 0000:00:14.2: PME# disabled pci 0000:02:00.0: PME# supported from D3hot pci 0000:02:00.0: PME# disabled pci 0000:02:00.0: disabling ASPM on pre-1.1 PCIe device. You can enable it with 'pcie_aspm=force' pci 0000:06:01.0: PME# supported from D1 D2 D3hot D3cold pci 0000:06:01.0: PME# disabled pci 0000:06:04.0: PME# supported from D0 D1 D2 D3hot D3cold pci 0000:06:04.0: PME# disabled pci 0000:06:04.1: PME# supported from D0 D1 D2 D3hot pci 0000:06:04.1: PME# disabled pci 0000:06:04.2: PME# supported from D0 D1 D2 D3hot pci 0000:06:04.2: PME# disabled pci 0000:06:04.3: PME# supported from D0 D1 D2 D3hot pci 0000:06:04.3: PME# disabled pci 0000:06:04.4: PME# supported from D0 D1 D2 D3hot pci 0000:06:04.4: PME# disabled pci 0000:00:14.4: transparent bridge ACPI: PCI Interrupt Link [LNKA] (IRQs 10 11) *0, disabled. ACPI: PCI Interrupt Link [LNKB] (IRQs 10 11) *0, disabled. ACPI: PCI Interrupt Link [LNKC] (IRQs 10 11) *0, disabled. ACPI: PCI Interrupt Link [LNKD] (IRQs 10 11) *0, disabled. ACPI: PCI Interrupt Link [LNKE] (IRQs 10 11) *0, disabled. ACPI: PCI Interrupt Link [LNKF] (IRQs 10 11) *0, disabled. ACPI: PCI Interrupt Link [LNKG] (IRQs 10 11) *0, disabled. ACPI: PCI Interrupt Link [LNKH] (IRQs 10 11) *0, disabled. ACPI: PCI Interrupt Link [LNKU] (IRQs 3 4 5 7) *0, disabled. SCSI subsystem initialized usbcore: registered new interface driver usbfs usbcore: registered new interface driver hub usbcore: registered new device driver usb PCI: Using ACPI for IRQ routing pci 0000:00:04.0: BAR 7: can't allocate resource pci 0000:00:04.0: BAR 8: can't allocate resource pci 0000:00:04.0: BAR 9: can't allocate resource pci 0000:00:05.0: BAR 7: can't allocate resource pci 0000:00:05.0: BAR 8: can't allocate resource pci 0000:02:00.0: BAR 0: can't allocate resource cfg80211: Using static regulatory domain info cfg80211: Regulatory domain: US (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp) (2402000 KHz - 2472000 KHz @ 40000 KHz), (600 mBi, 2700 mBm) (5170000 KHz - 5190000 KHz @ 40000 KHz), (600 mBi, 2300 mBm) (5190000 KHz - 5210000 KHz @ 40000 KHz), (600 mBi, 2300 mBm) (5210000 KHz - 5230000 KHz @ 40000 KHz), (600 mBi, 2300 mBm) (5230000 KHz - 5330000 KHz @ 40000 KHz), (600 mBi, 2300 mBm) (5735000 KHz - 5835000 KHz @ 40000 KHz), (600 mBi, 3000 mBm) cfg80211: Calling CRDA for country: US pnp: PnP ACPI init ACPI: bus type pnp registered pnp 00:09: mem resource (0x0-0xfff) overlaps 0000:00:12.0 BAR 6 (0x0-0x7ffff), disabling pnp 00:09: mem resource (0x0-0xfff) overlaps 0000:01:05.0 BAR 6 (0x0-0x1ffff), disabling pnp 00:09: mem resource (0x0-0xfff) overlaps 0000:02:00.0 BAR 0 (0x0-0xffff), disabling pnp: PnP ACPI: found 10 devices ACPI: ACPI bus type pnp unregistered system 00:01: iomem range 0xfec00000-0xfec00fff has been reserved system 00:01: iomem range 0xfee00000-0xfee00fff has been reserved system 00:08: ioport range 0x1080-0x1080 has been reserved system 00:08: ioport range 0x40b-0x40b has been reserved system 00:08: ioport range 0x4d0-0x4d1 has been reserved system 00:08: ioport range 0x4d6-0x4d6 has been reserved system 00:08: ioport range 0xc00-0xc01 has been reserved system 00:08: ioport range 0xc14-0xc14 has been reserved system 00:08: ioport range 0xc50-0xc52 has been reserved system 00:08: ioport range 0xc6c-0xc6c has been reserved system 00:08: ioport range 0xc6f-0xc6f has been reserved system 00:08: ioport range 0xcd4-0xcd5 has been reserved system 00:08: ioport range 0xcd6-0xcd7 has been reserved system 00:08: ioport range 0xcd8-0xcdf has been reserved system 00:08: ioport range 0x8000-0x805f has been reserved system 00:08: ioport range 0xf40-0xf47 has been reserved system 00:08: ioport range 0x280-0x293 has been reserved system 00:08: ioport range 0x87f-0x87f has been reserved system 00:09: iomem range 0xe0000-0xfffff could not be reserved system 00:09: iomem range 0xfff00000-0xffffffff could not be reserved pci 0000:00:01.0: PCI bridge, secondary bus 0000:01 pci 0000:00:01.0: IO window: 0x9000-0x9fff pci 0000:00:01.0: MEM window: 0xfc000000-0xfc0fffff pci 0000:00:01.0: PREFETCH window: 0x000000f8000000-0x000000fbffffff pci 0000:00:04.0: PCI bridge, secondary bus 0000:02 pci 0000:00:04.0: IO window: disabled pci 0000:00:04.0: MEM window: 0x54000000-0x540fffff pci 0000:00:04.0: PREFETCH window: disabled pci 0000:00:05.0: PCI bridge, secondary bus 0000:04 pci 0000:00:05.0: IO window: disabled pci 0000:00:05.0: MEM window: disabled pci 0000:00:05.0: PREFETCH window: disabled pci 0000:06:04.0: CardBus bridge, secondary bus 0000:07 pci 0000:06:04.0: IO window: 0x00a400-0x00a4ff pci 0000:06:04.0: IO window: 0x00a800-0x00a8ff pci 0000:06:04.0: PREFETCH window: 0x50000000-0x53ffffff pci 0000:06:04.0: MEM window: 0x58000000-0x5bffffff pci 0000:00:14.4: PCI bridge, secondary bus 0000:06 pci 0000:00:14.4: IO window: 0xa000-0xafff pci 0000:00:14.4: MEM window: 0xfc200000-0xfc2fffff Switched to NOHz mode on CPU #0 Switched to NOHz mode on CPU #1 pci 0000:00:14.4: PREFETCH window: 0x00000050000000-0x00000053ffffff pci 0000:00:04.0: enabling device (0000 -> 0002) pci 0000:06:04.0: PCI INT A -> GSI 20 (level, low) -> IRQ 20 NET: Registered protocol family 2 IP route cache hash table entries: 32768 (order: 6, 262144 bytes) TCP established hash table entries: 131072 (order: 9, 2097152 bytes) TCP bind hash table entries: 65536 (order: 8, 1048576 bytes) TCP: Hash tables configured (established 131072 bind 65536) TCP reno registered NET: Registered protocol family 1 HugeTLB registered 2 MB page size, pre-allocated 0 pages Installing knfsd (copyright (C) 1996 okir@monad.swb.de). SGI XFS with security attributes, large block/inode numbers, no debug enabled msgmni has been set to 1935 alg: No test for stdrng (krng) io scheduler noop registered io scheduler anticipatory registered io scheduler deadline registered (default) io scheduler cfq registered pci 0000:00:00.0: MSI quirk detected; MSI disabled ACPI: AC Adapter [ACAD] (on-line) ACPI: Battery Slot [BAT1] (battery present) input: Power Button (FF) as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0 ACPI: Power Button (FF) [PWRF] input: Lid Switch as /devices/LNXSYSTM:00/device:00/PNP0C0D:00/input/input1 ACPI: Lid Switch [LID] input: Power Button (CM) as /devices/LNXSYSTM:00/device:00/PNP0C0C:00/input/input2 ACPI: Power Button (CM) [PWRB] input: Sleep Button (CM) as /devices/LNXSYSTM:00/device:00/PNP0C0E:00/input/input3 ACPI: Sleep Button (CM) [SLPB] ACPI: processor limited to max C-state 1 processor ACPI_CPU:00: registered as cooling_device0 processor ACPI_CPU:01: registered as cooling_device1 ACPI: Invalid active0 threshold thermal LNXTHERM:01: registered as thermal_zone0 ACPI: Thermal Zone [THRM] (58 C) lp: driver loaded but no devices found Linux agpgart interface v0.103 [drm] Initialized drm 1.1.0 20060810 pci 0000:01:05.0: power state changed by ACPI to D0 pci 0000:01:05.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17 [drm] Initialized radeon 1.29.0 20080528 on minor 0 Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled PPP generic driver version 2.4.2 PPP Deflate Compression module registered PPP BSD Compression module registered PPP MPPE Compression module registered NET: Registered protocol family 24 8139too Fast Ethernet driver 0.9.28 8139too 0000:06:01.0: power state changed by ACPI to D0 8139too 0000:06:01.0: PCI INT A -> GSI 21 (level, low) -> IRQ 21 eth0: RealTek RTL8139 at 0xffffc20000032000, 00:16:d4:ce:03:15, IRQ 21 ath5k 0000:02:00.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16 ath5k 0000:02:00.0: registered as 'phy0' wmaster0 (ath5k): not using net_device_ops yet wlan0 (ath5k): not using net_device_ops yet ath5k phy0: Atheros AR2425 chip found (MAC: 0xe2, PHY: 0x70) netconsole: local port 6666 netconsole: local IP 192.168.168.2 netconsole: interface eth0 netconsole: remote port 6667 netconsole: remote IP 192.168.168.1 netconsole: remote ethernet address 00:13:8f:e0:34:f5 netconsole: device eth0 not up yet, forcing it eth0: link up, 100Mbps, full-duplex, lpa 0xC5E1 netconsole: carrier detect appears untrustworthy, waiting 4 seconds console [netcon0] enabled netconsole: network logging started Driver 'sd' needs updating - please use bus_type methods Driver 'sr' needs updating - please use bus_type methods sata_sil 0000:00:12.0: enabling device (0005 -> 0007) sata_sil 0000:00:12.0: PCI INT A -> GSI 22 (level, low) -> IRQ 22 scsi0 : sata_sil scsi1 : sata_sil ata1: SATA max UDMA/100 mmio m512@0xfc507000 tf 0xfc507080 irq 22 ata2: SATA max UDMA/100 mmio m512@0xfc507000 tf 0xfc5070c0 irq 22 ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 310) ata1.00: ATA-7: Hitachi HTS541612J9SA00, SBDOC70P, max UDMA/100 ata1.00: 234441648 sectors, multi 16: LBA48 NCQ (depth 0/32) ata1.00: configured for UDMA/100 isa bounce pool size: 16 pages scsi 0:0:0:0: Direct-Access ATA Hitachi HTS54161 SBDO PQ: 0 ANSI: 5 sd 0:0:0:0: [sda] 234441648 512-byte hardware sectors: (120 GB/111 GiB) sd 0:0:0:0: [sda] Write Protect is off sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA sd 0:0:0:0: [sda] 234441648 512-byte hardware sectors: (120 GB/111 GiB) sd 0:0:0:0: [sda] Write Protect is off sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA sda: sda1 sda2 sda3 sd 0:0:0:0: [sda] Attached SCSI disk sd 0:0:0:0: Attached scsi generic sg0 type 0 ata2: SATA link down (SStatus 0 SControl 310) pata_atiixp 0000:00:14.1: PCI INT A -> GSI 16 (level, low) -> IRQ 16 scsi2 : pata_atiixp scsi3 : pata_atiixp ata3: PATA max UDMA/100 cmd 0x1f0 ctl 0x3f6 bmdma 0x8420 irq 14 ata4: PATA max UDMA/100 cmd 0x170 ctl 0x376 bmdma 0x8428 irq 15 ata3.00: ATAPI: Slimtype DVD A DS8A1P, CA11, max UDMA/33 ata3.00: configured for UDMA/33 scsi 2:0:0:0: CD-ROM Slimtype DVD A DS8A1P CA11 PQ: 0 ANSI: 5 sr0: scsi3-mmc drive: 24x/24x writer dvd-ram cd/rw xa/form2 cdda tray Uniform CD-ROM driver Revision: 3.20 sr 2:0:0:0: Attached scsi generic sg1 type 5 ieee1394: raw1394: /dev/raw1394 device initialized usbmon: debugfs is not available ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver ehci_hcd 0000:00:13.2: PCI INT A -> GSI 19 (level, low) -> IRQ 19 ehci_hcd 0000:00:13.2: EHCI Host Controller ehci_hcd 0000:00:13.2: new USB bus registered, assigned bus number 1 ehci_hcd 0000:00:13.2: irq 19, io mem 0xfc506000 ehci_hcd 0000:00:13.2: USB 2.0 started, EHCI 1.00 usb usb1: New USB device found, idVendor=1d6b, idProduct=0002 usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1 usb usb1: Product: EHCI Host Controller usb usb1: Manufacturer: Linux 2.6.29-rc6 ehci_hcd usb usb1: SerialNumber: 0000:00:13.2 usb usb1: configuration #1 chosen from 1 choice hub 1-0:1.0: USB hub found hub 1-0:1.0: 8 ports detected ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver ohci_hcd 0000:00:13.0: PCI INT A -> GSI 19 (level, low) -> IRQ 19 ohci_hcd 0000:00:13.0: OHCI Host Controller ohci_hcd 0000:00:13.0: new USB bus registered, assigned bus number 2 ohci_hcd 0000:00:13.0: irq 19, io mem 0xfc504000 usb usb2: New USB device found, idVendor=1d6b, idProduct=0001 usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1 usb usb2: Product: OHCI Host Controller usb usb2: Manufacturer: Linux 2.6.29-rc6 ohci_hcd usb usb2: SerialNumber: 0000:00:13.0 usb usb2: configuration #1 chosen from 1 choice hub 2-0:1.0: USB hub found hub 2-0:1.0: 4 ports detected ohci_hcd 0000:00:13.1: PCI INT A -> GSI 19 (level, low) -> IRQ 19 ohci_hcd 0000:00:13.1: OHCI Host Controller ohci_hcd 0000:00:13.1: new USB bus registered, assigned bus number 3 ohci_hcd 0000:00:13.1: irq 19, io mem 0xfc505000 usb usb3: New USB device found, idVendor=1d6b, idProduct=0001 usb usb3: New USB device strings: Mfr=3, Product=2, SerialNumber=1 usb usb3: Product: OHCI Host Controller usb usb3: Manufacturer: Linux 2.6.29-rc6 ohci_hcd usb usb3: SerialNumber: 0000:00:13.1 usb usb3: configuration #1 chosen from 1 choice hub 3-0:1.0: USB hub found hub 3-0:1.0: 4 ports detected usbcore: registered new interface driver usblp Initializing USB Mass Storage driver... usbcore: registered new interface driver usb-storage USB Mass Storage support registered. PNP: PS/2 Controller [PNP0303:KBC0,PNP0f13:MSS0] at 0x60,0x64 irq 1,12 i8042.c: Detected active multiplexing controller, rev 1.1. serio: i8042 KBD port at 0x60,0x64 irq 1 serio: i8042 AUX0 port at 0x60,0x64 irq 12 serio: i8042 AUX1 port at 0x60,0x64 irq 12 serio: i8042 AUX2 port at 0x60,0x64 irq 12 serio: i8042 AUX3 port at 0x60,0x64 irq 12 mice: PS/2 mouse device common for all mice rtc_cmos 00:04: RTC can wake from S4 rtc_cmos 00:04: rtc core: registered rtc_cmos as rtc0 rtc0: alarms up to one month, 114 bytes nvram i2c /dev entries driver piix4_smbus 0000:00:14.0: SMBus Host Controller at 0x8410, revision 0 k8temp 0000:00:18.3: Temperature readouts might be wrong - check erratum #141 cpuidle: using governor ladder cpuidle: using governor menu input: AT Translated Set 2 keyboard as /devices/platform/i8042/serio0/input/input4 sdhci: Secure Digital Host Controller Interface driver sdhci: Copyright(c) Pierre Ossman sdhci-pci 0000:06:04.2: SDHCI controller found [1524:0550] (rev 1) sdhci-pci 0000:06:04.2: PCI INT B -> GSI 23 (level, low) -> IRQ 23 Registered led device: mmc0:: mmc0: SDHCI controller on PCI [0000:06:04.2] using PIO sdhci-pci 0000:06:04.4: SDHCI controller found [1524:0551] (rev 1) sdhci-pci 0000:06:04.4: enabling device (0000 -> 0002) sdhci-pci 0000:06:04.4: PCI INT B -> GSI 23 (level, low) -> IRQ 23 Registered led device: mmc1:: mmc1: SDHCI controller on PCI [0000:06:04.4] using PIO usbcore: registered new interface driver usbhid usbhid: v2.6:USB HID core driver Advanced Linux Sound Architecture Driver Version 1.0.18a. HDA Intel 0000:00:14.2: PCI INT A -> GSI 16 (level, low) -> IRQ 16 ALSA device list: #0: HDA ATI SB at 0xfc500000 irq 16 TCP cubic registered NET: Registered protocol family 17 RPC: Registered udp transport module. RPC: Registered tcp transport module. powernow-k8: Found 1 AMD Turion(tm) 64 X2 Mobile Technology TL-52 processors (2 cpu cores) (version 2.20.00) powernow-k8: 0 : fid 0x8 (1600 MHz), vid 0x13 powernow-k8: 1 : fid 0x0 (800 MHz), vid 0x1e usb 1-4: new high speed USB device using ehci_hcd and address 2 usb 1-4: New USB device found, idVendor=5986, idProduct=0100 usb 1-4: New USB device strings: Mfr=0, Product=1, SerialNumber=0 usb 1-4: Product: USB2.0 Camera usb 1-4: configuration #1 chosen from 1 choice Synaptics Touchpad, model: 1, fw: 6.2, id: 0x1280b1, caps: 0xa04713/0x204000 input: SynPS/2 Synaptics TouchPad as /devices/platform/i8042/serio4/input/input5 rtc_cmos 00:04: setting system clock to 2009-02-26 22:27:45 UTC (1235687265) EXT4-fs: INFO: recovery required on readonly filesystem. EXT4-fs: write access will be enabled during recovery. EXT4-fs: barriers enabled usb 2-4: new low speed USB device using ohci_hcd and address 2 usb 2-4: New USB device found, idVendor=046d, idProduct=c019 usb 2-4: New USB device strings: Mfr=1, Product=2, SerialNumber=0 usb 2-4: Product: USB Optical Mouse usb 2-4: Manufacturer: Logitech usb 2-4: configuration #1 chosen from 1 choice input: Logitech USB Optical Mouse as /devices/pci0000:00/0000:00:13.0/usb2/2-4/2-4:1.0/input/input6 generic-usb 0003:046D:C019.0001: input: USB HID v1.11 Mouse [Logitech USB Optical Mouse] on usb-0000:00:13.0-4/input0 EXT4-fs: delayed allocation enabled EXT4-fs: file extents enabled EXT4-fs: mballoc enabled EXT4-fs: sda2: orphan cleanup on readonly fs EXT4-fs: sda2: 2 orphan inodes deleted EXT4-fs: recovery complete. kjournald2 starting: pid 1249, dev sda2:8, commit interval 11 seconds EXT4-fs: mounted filesystem sda2 with ordered data mode VFS: Mounted root (ext4 filesystem) readonly on device 8:2. Freeing unused kernel memory: 328k freed EXT4-fs warning: maximal mount count reached, running e2fsck is recommended EXT4 FS on sda2, internal journal on sda2:8 EXT4-fs: barriers enabled kjournald2 starting: pid 2587, dev sda3:8, commit interval 11 seconds EXT4-fs warning: maximal mount count reached, running e2fsck is recommended EXT4 FS on sda3, internal journal on sda3:8 EXT4-fs: delayed allocation enabled EXT4-fs: file extents enabled EXT4-fs: mballoc enabled EXT4-fs: recovery complete. EXT4-fs: mounted filesystem sda3 with ordered data mode Adding 2008084k swap on /dev/sda1. Priority:-1 extents:1 across:2008084k BUG: unable to handle kernel NULL pointer dereference at 0000000000000006 IP: [<ffffffff804c0430>] ath5k_tx+0x280/0x5f0 PGD 369c5067 PUD 369c4067 PMD 0 Oops: 0000 [#1] PREEMPT SMP last sysfs file: /sys/devices/LNXSYSTM:00/device:00/PNP0A03:00/device:1c/PNP0C0A:00/power_supply/BAT1/charge_full CPU 1 Modules linked in: Pid: 0, comm: swapper Tainted: G W 2.6.29-rc6 #1 Aspire 5100 RIP: 0010:[<ffffffff804c0430>] [<ffffffff804c0430>] ath5k_tx+0x280/0x5f0 RSP: 0018:ffff88003d8cb680 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffffffff804b6260 RCX: 0000000000007fff RDX: ffff8800807bc000 RSI: 0000000000000046 RDI: ffff880034434640 RBP: ffff88003d8cb770 R08: 0000000000000011 R09: 0000000000000010 R10: ffffffff80886ae0 R11: ffff88003d8cb3b0 R12: ffff88003d9aec38 R13: ffff880034434640 R14: ffff88003cded030 R15: ffff88003ce51900 FS: 00007f9b28eab750(0000) GS:ffff88003d8067d0(0000) knlGS:0000000000000000 CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b CR2: 0000000000000006 CR3: 00000000369f6000 CR4: 00000000000006e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process swapper (pid: 0, threadinfo ffff88003d8c6000, task ffff88003d882340) Stack: ffff88003a81bc20 0000000000000001 ffff88003d8cb7d0 ffff880034434640 ffff88003d8cb7a0 ffffffff8063a8c4 ffffffff80803bb0 0000000000000282 ffff880000000011 ffff88003ce502a0 ffff88003ce54b90 ffff88003ce54b80 Call Trace: <IRQ> <0> [<ffffffff8063a8c4>] ? invoke_tx_handlers+0x784/0xe40 [<ffffffff804b6260>] ? ath5k_hw_setup_4word_tx_desc+0x0/0x260 [<ffffffff8063b5be>] __ieee80211_tx+0x4e/0x150 [<ffffffff8063c34f>] ieee80211_master_start_xmit+0x24f/0x520 [<ffffffff805a4ecd>] dev_hard_start_xmit+0x24d/0x2d0 [<ffffffff805b6bae>] __qdisc_run+0x22e/0x280 [<ffffffff805a5318>] dev_queue_xmit+0x288/0x590 [<ffffffff8063be81>] ieee80211_subif_start_xmit+0x3e1/0x660 [<ffffffff802a6f7d>] ? check_object+0x27d/0x290 [<ffffffff805a4ecd>] dev_hard_start_xmit+0x24d/0x2d0 [<ffffffff80597f81>] ? sock_wmalloc+0x31/0x70 [<ffffffff805b6bae>] __qdisc_run+0x22e/0x280 [<ffffffff805a5318>] dev_queue_xmit+0x288/0x590 [<ffffffff805ca317>] ip_finish_output+0x1b7/0x320 [<ffffffff805ca50d>] ip_output+0x8d/0xf0 [<ffffffff805c9210>] ip_local_out+0x20/0x30 [<ffffffff805c9501>] ip_push_pending_frames+0x2e1/0x450 [<ffffffff805c98b6>] ip_send_reply+0x246/0x270 [<ffffffff805e1c49>] tcp_v4_send_reset+0xf9/0x180 [<ffffffff8059f08c>] ? __skb_checksum_complete+0xc/0x10 [<ffffffff805e3892>] tcp_v4_rcv+0x292/0x6f0 [<ffffffff805c4b51>] ip_local_deliver_finish+0xc1/0x170 [<ffffffff805c4c8d>] ip_local_deliver+0x8d/0xa0 [<ffffffff805c459b>] ip_rcv_finish+0x12b/0x340 [<ffffffff805c4a03>] ip_rcv+0x253/0x2e0 [<ffffffff805a3fe2>] netif_receive_skb+0x282/0x360 [<ffffffff804c15ac>] ? ath5k_tasklet_rx+0x41c/0x620 [<ffffffff805a45c0>] napi_gro_receive+0x60/0x70 [<ffffffff805a464a>] process_backlog+0x7a/0xc0 [<ffffffff805a263d>] net_rx_action+0x13d/0x200 [<ffffffff802453a4>] __do_softirq+0x74/0x130 [<ffffffff8020cbac>] call_softirq+0x1c/0x30 [<ffffffff8020e4fd>] do_softirq+0x3d/0x80 [<ffffffff8024503d>] irq_exit+0x8d/0xb0 [<ffffffff8020e766>] do_IRQ+0x86/0x110 [<ffffffff8020c453>] ret_from_intr+0x0/0xa <EOI> <0> [<ffffffff802136f2>] ? default_idle+0x42/0x50 [<ffffffff802138f6>] ? c1e_idle+0xa6/0x100 [<ffffffff8025a931>] ? atomic_notifier_call_chain+0x11/0x20 [<ffffffff8020aaf2>] ? cpu_idle+0x62/0xc0 [<ffffffff80652590>] ? start_secondary+0x163/0x1b3 Code: 78 ff ff ff 48 8b 50 28 0f b6 41 04 48 8b 4c c2 18 48 0f be c6 48 8d 14 85 00 00 00 00 48 c1 e0 04 48 29 d0 48 03 41 08 4c 89 ef <44> 0f b7 60 06 41 8b 9f 18 34 00 00 44 89 85 50 ff ff ff e8 48 RIP [<ffffffff804c0430>] ath5k_tx+0x280/0x5f0 RSP <ffff88003d8cb680> CR2: 0000000000000006 ---[ end trace bb001332080d1386 ]--- Kernel panic - not syncing: Fatal exception in interrupt So the modversions hint was because it looked like some of the structure accesses were off by a few bytes which can happen if the headers you compile against are different from the ones modules are compiled against, but now I see you're not using a modular kernel. Hmm, as far as I can tell this is the same as the original (get_tx_rate returns null). There wasn't any WARN in dmesg? The taint flags indicate that there should have been a warning. BTW it might also help subsequent investigations to turn on debug info -- my cross compiler generates much different code than yours so I'd probably need your objdump -S, but that is almost useless without debug info. That is under "Kernel Hacking->Compile the kernel with debug info". Also, what version of compiler are you using? I'll upload my config for reference, but it is 32 bit x86. Created attachment 20397 [details]
Bob's config
My config, for reference.
(In reply to comment #30) .... > Hmm, as far as I can tell this is the same as the original (get_tx_rate > returns null). There wasn't any WARN in dmesg? The taint flags indicate > that there should have been a warning. I'm pretty sure there was warning but it was lost due to the some interaction with netconsole. It seems to me that netconsole doesn't send WARN until loglevel is high enough. In my case loglevel is set by init scripts. And it looks like warnings(s) had happened before particular init script was executed. Unfortunately neither warnings(s) nor oops was written to local file system at all. And I don't know how to properly solve that situation. > > BTW it might also help subsequent investigations to turn on debug info -- my > cross compiler generates much different code than yours so I'd probably need > your objdump -S, but that is almost useless without debug info. That is > under > "Kernel Hacking->Compile the kernel with debug info". Also, what version of > compiler are you using? > > I'll upload my config for reference, but it is 32 bit x86. Ok. I'll try to change all debug options accordingly. (In reply to comment #30) ... > Also, what version of compiler are you using? Sorry. I forgot to answer that part: rathamahata@autonomist ~ $ gcc -dumpversion 4.3.3 rathamahata@autonomist ~ $ So, I recompiled 2.6.29-rc6 with CONFIG_DEBUG_INFO=y and several other debug options enabled. rathamahata@autonomist /usr/local/src/linux-2.6.29-rc6 $ grep DEBUG .config | egrep -v '^#' CONFIG_SLUB_DEBUG=y CONFIG_X86_DEBUGCTLMSR=y CONFIG_ATH5K_DEBUG=y CONFIG_DEBUG_KERNEL=y CONFIG_DEBUG_SHIRQ=y CONFIG_SCHED_DEBUG=y CONFIG_SLUB_DEBUG_ON=y CONFIG_DEBUG_PREEMPT=y CONFIG_DEBUG_SPINLOCK=y CONFIG_DEBUG_MUTEXES=y CONFIG_DEBUG_SPINLOCK_SLEEP=y CONFIG_DEBUG_BUGVERBOSE=y CONFIG_DEBUG_INFO=y CONFIG_DEBUG_VM=y CONFIG_DEBUG_MEMORY_INIT=y CONFIG_DEBUG_LIST=y CONFIG_DEBUG_NOTIFIERS=y CONFIG_DEBUG_STACKOVERFLOW=y CONFIG_DEBUG_PAGEALLOC=y CONFIG_DEBUG_RODATA=y rathamahata@autonomist /usr/local/src/linux-2.6.29-rc6 $ I have just rebooted that kernel with the same oops. And again unfortunately I was unable to catch warning that precedes oops via netconsole. I have finally succeeded in getting both warning and oops. Below is full dmesg: Linux version 2.6.29-rc6 (rathamahata@autonomist.ath.cx) (gcc version 4.3.3 (Gentoo 4.3.3 p1.0, pie-10.1.5) ) #2 SMP PREEMPT Sun Mar 1 20:50:14 MSK 2009 Command line: BOOT_IMAGE=/boot/linux-2.6.29-rc6 root=/dev/sda2 rootflags=commit=11 elevator=deadline netconsole=6666@192.168.168.2/eth0,6667@192.168.168.1/00:13:8f:e0:34:f5 KERNEL supported cpus: Intel GenuineIntel AMD AuthenticAMD Centaur CentaurHauls BIOS-provided physical RAM map: BIOS-e820: 0000000000000000 - 000000000009dc00 (usable) BIOS-e820: 000000000009dc00 - 00000000000a0000 (reserved) BIOS-e820: 00000000000d0000 - 0000000000100000 (reserved) BIOS-e820: 0000000000100000 - 000000003de80000 (usable) BIOS-e820: 000000003de80000 - 000000003de97000 (ACPI data) BIOS-e820: 000000003de97000 - 000000003df00000 (ACPI NVS) BIOS-e820: 000000003df00000 - 0000000040000000 (reserved) BIOS-e820: 00000000e0000000 - 00000000f0000000 (reserved) BIOS-e820: 00000000fec00000 - 00000000fec10000 (reserved) BIOS-e820: 00000000fee00000 - 00000000fee01000 (reserved) BIOS-e820: 00000000fff80000 - 0000000100000000 (reserved) DMI present. last_pfn = 0x3de80 max_arch_pfn = 0x100000000 x86 PAT enabled: cpu 0, old 0x7040600070406, new 0x7010600070106 init_memory_mapping: 0000000000000000-000000003de80000 last_map_addr: 3de80000 end: 3de80000 ACPI: RSDP 000F7D80, 0014 (r0 ACRSYS) ACPI: RSDT 3DE8E70B, 0038 (r1 ACRSYS ACRPRDCT 6040000 LTP 0) ACPI: FACP 3DE96C04, 0074 (r1 ATI Bowfin 6040000 ATI F4240) FADT: X_PM1a_EVT_BLK.bit_width (16) does not match PM1_EVT_LEN (4) FADT: X_PM1b_EVT_BLK.bit_width (16) does not match PM1_EVT_LEN (4) ACPI: DSDT 3DE8E743, 84C1 (r1 Acer Navarro 6040000 MSFT 3000000) ACPI: FACS 3DE97FC0, 0040 ACPI: SLIC 3DE96C78, 0176 (r1 ACRSYS ACRPRDCT 6040000 LOHR 0) ACPI: APIC 3DE96DEE, 0054 (r1 PTLTD APIC 6040000 LTP 0) ACPI: MCFG 3DE96E42, 003C (r1 PTLTD MCFG 6040000 LTP 0) ACPI: SSDT 3DE96E7E, 0182 (r1 PTLTD POWERNOW 6040000 LTP 1) (5 early reservations) ==> bootmem [0000000000 - 003de80000] #0 [0000000000 - 0000001000] BIOS data page ==> [0000000000 - 0000001000] #1 [0000006000 - 0000008000] TRAMPOLINE ==> [0000006000 - 0000008000] #2 [0000200000 - 00008d1c34] TEXT DATA BSS ==> [0000200000 - 00008d1c34] #3 [000009dc00 - 0000100000] BIOS reserved ==> [000009dc00 - 0000100000] #4 [00008d2000 - 0000ac2000] PGTABLE ==> [00008d2000 - 0000ac2000] found SMP MP-table at [ffff8800000f7e40] 000f7e40 Zone PFN ranges: DMA 0x00000000 -> 0x00001000 DMA32 0x00001000 -> 0x00100000 Normal 0x00100000 -> 0x00100000 Movable zone start PFN for each node early_node_map[2] active PFN ranges 0: 0x00000000 -> 0x0000009d 0: 0x00000100 -> 0x0003de80 SB4X0 revision 0x83 Ignoring ACPI timer override. If you got timer trouble try acpi_use_timer_override Detected use of extended apic ids on hypertransport bus ACPI: PM-Timer IO Port: 0x8008 ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled) ACPI: LAPIC (acpi_id[0x01] lapic_id[0x01] enabled) ACPI: LAPIC_NMI (acpi_id[0x00] high edge lint[0x1]) ACPI: LAPIC_NMI (acpi_id[0x01] high edge lint[0x1]) ACPI: IOAPIC (id[0x02] address[0xfec00000] gsi_base[0]) IOAPIC[0]: apic_id 2, version 0, address 0xfec00000, GSI 0-23 Using ACPI (MADT) for SMP configuration information SMP: Allowing 2 CPUs, 0 hotplug CPUs PM: Registered nosave memory: 000000000009d000 - 000000000009e000 PM: Registered nosave memory: 000000000009e000 - 00000000000a0000 PM: Registered nosave memory: 00000000000a0000 - 00000000000d0000 PM: Registered nosave memory: 00000000000d0000 - 0000000000100000 Allocating PCI resources starting at 50000000 (gap: 40000000:a0000000) NR_CPUS:2 nr_cpumask_bits:2 nr_cpu_ids:2 nr_node_ids:1 PERCPU: Allocating 49152 bytes of per cpu data Built 1 zonelists in Zone order, mobility grouping on. Total pages: 247658 Kernel command line: BOOT_IMAGE=/boot/linux-2.6.29-rc6 root=/dev/sda2 rootflags=commit=11 elevator=deadline netconsole=6666@192.168.168.2/eth0,6667@192.168.168.1/00:13:8f:e0:34:f5 Initializing CPU#0 Preemptible RCU implementation. PID hash table entries: 4096 (order: 12, 32768 bytes) Fast TSC calibration using PIT Detected 1596.111 MHz processor. Console: colour VGA+ 80x25 console [tty0] enabled Dentry cache hash table entries: 131072 (order: 8, 1048576 bytes) Inode-cache hash table entries: 65536 (order: 7, 524288 bytes) Checking aperture... No AGP bridge found Node 0: aperture @ cdf0000000 size 32 MB Aperture beyond 4GB. Ignoring. Memory: 988240k/1014272k available (4520k kernel code, 396k absent, 25064k reserved, 1717k data, 328k init) SLUB: Genslabs=12, HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1 Calibrating delay loop (skipped), value calculated using timer frequency.. 3192.22 BogoMIPS (lpj=1596111) Mount-cache hash table entries: 256 CPU: L1 I Cache: 64K (64 bytes/line), D cache 64K (64 bytes/line) CPU: L2 Cache: 512K (64 bytes/line) CPU: Physical Processor ID: 0 CPU: Processor Core ID: 0 using C1E aware idle routine ACPI: Core revision 20081204 Setting APIC routing to flat ..TIMER: vector=0x30 apic1=0 pin1=0 apic2=-1 pin2=-1 CPU0: AMD Turion(tm) 64 X2 Mobile Technology TL-52 stepping 02 Booting processor 1 APIC 0x1 ip 0x6000 Initializing CPU#1 Calibrating delay using timer specific routine.. 3191.35 BogoMIPS (lpj=1595676) CPU: L1 I Cache: 64K (64 bytes/line), D cache 64K (64 bytes/line) CPU: L2 Cache: 512K (64 bytes/line) CPU: Physical Processor ID: 0 CPU: Processor Core ID: 1 x86 PAT enabled: cpu 1, old 0x7040600070406, new 0x7010600070106 CPU1: <6>System has AMD C1E enabled Switch to broadcast mode on CPU1 AMD Turion(tm) 64 X2 Mobile Technology TL-52 stepping 02 Brought up 2 CPUs Total of 2 processors activated (6383.57 BogoMIPS). Switch to broadcast mode on CPU0 net_namespace: 968 bytes NET: Registered protocol family 16 TOM: 0000000040000000 aka 1024M ACPI: bus type pci registered PCI: MCFG configuration 0: base e0000000 segment 0 buses 0 - 7 PCI: MCFG area at e0000000 reserved in E820 PCI: Using MMCONFIG at e0000000 - e07fffff PCI: Using configuration type 1 for base access bio: create slab <bio-0> at 0 ACPI: BIOS _OSI(Linux) query ignored ACPI: Interpreter enabled ACPI: (supports S0 S3 S4 S5) ACPI: Using IOAPIC for interrupt routing ACPI: EC: non-query interrupt received, switching to interrupt mode ACPI: EC: GPE = 0x10, I/O: command/status = 0x66, data = 0x62 ACPI: EC: driver started in interrupt mode ACPI: No dock devices found. ACPI: PCI Root Bridge [PCI0] (0000:00) pci 0000:00:04.0: PME# supported from D0 D3hot D3cold pci 0000:00:04.0: PME# disabled pci 0000:00:05.0: PME# supported from D0 D3hot D3cold pci 0000:00:05.0: PME# disabled pci 0000:00:13.2: PME# supported from D0 D1 D2 D3hot pci 0000:00:13.2: PME# disabled HPET not enabled in BIOS. You might try hpet=force boot option pci 0000:00:14.2: PME# supported from D0 D3hot D3cold pci 0000:00:14.2: PME# disabled pci 0000:02:00.0: PME# supported from D3hot pci 0000:02:00.0: PME# disabled pci 0000:02:00.0: disabling ASPM on pre-1.1 PCIe device. You can enable it with 'pcie_aspm=force' pci 0000:06:01.0: PME# supported from D1 D2 D3hot D3cold pci 0000:06:01.0: PME# disabled pci 0000:06:04.0: PME# supported from D0 D1 D2 D3hot D3cold pci 0000:06:04.0: PME# disabled pci 0000:06:04.1: PME# supported from D0 D1 D2 D3hot pci 0000:06:04.1: PME# disabled pci 0000:06:04.2: PME# supported from D0 D1 D2 D3hot pci 0000:06:04.2: PME# disabled pci 0000:06:04.3: PME# supported from D0 D1 D2 D3hot pci 0000:06:04.3: PME# disabled pci 0000:06:04.4: PME# supported from D0 D1 D2 D3hot pci 0000:06:04.4: PME# disabled pci 0000:00:14.4: transparent bridge ACPI: PCI Interrupt Link [LNKA] (IRQs 10 11) *0, disabled. ACPI: PCI Interrupt Link [LNKB] (IRQs 10 11) *0, disabled. ACPI: PCI Interrupt Link [LNKC] (IRQs 10 11) *0, disabled. ACPI: PCI Interrupt Link [LNKD] (IRQs 10 11) *0, disabled. ACPI: PCI Interrupt Link [LNKE] (IRQs 10 11) *0, disabled. ACPI: PCI Interrupt Link [LNKF] (IRQs 10 11) *0, disabled. ACPI: PCI Interrupt Link [LNKG] (IRQs 10 11) *0, disabled. ACPI: PCI Interrupt Link [LNKH] (IRQs 10 11) *0, disabled. ACPI: PCI Interrupt Link [LNKU] (IRQs 3 4 5 7) *0, disabled. SCSI subsystem initialized usbcore: registered new interface driver usbfs usbcore: registered new interface driver hub usbcore: registered new device driver usb PCI: Using ACPI for IRQ routing pci 0000:00:04.0: BAR 7: can't allocate resource pci 0000:00:04.0: BAR 8: can't allocate resource pci 0000:00:04.0: BAR 9: can't allocate resource pci 0000:00:05.0: BAR 7: can't allocate resource pci 0000:00:05.0: BAR 8: can't allocate resource pci 0000:02:00.0: BAR 0: can't allocate resource cfg80211: Using static regulatory domain info cfg80211: Regulatory domain: US (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp) (2402000 KHz - 2472000 KHz @ 40000 KHz), (600 mBi, 2700 mBm) (5170000 KHz - 5190000 KHz @ 40000 KHz), (600 mBi, 2300 mBm) (5190000 KHz - 5210000 KHz @ 40000 KHz), (600 mBi, 2300 mBm) (5210000 KHz - 5230000 KHz @ 40000 KHz), (600 mBi, 2300 mBm) (5230000 KHz - 5330000 KHz @ 40000 KHz), (600 mBi, 2300 mBm) (5735000 KHz - 5835000 KHz @ 40000 KHz), (600 mBi, 3000 mBm) cfg80211: Calling CRDA for country: US pnp: PnP ACPI init ACPI: bus type pnp registered pnp 00:09: mem resource (0x0-0xfff) overlaps 0000:00:12.0 BAR 6 (0x0-0x7ffff), disabling pnp 00:09: mem resource (0x0-0xfff) overlaps 0000:01:05.0 BAR 6 (0x0-0x1ffff), disabling pnp 00:09: mem resource (0x0-0xfff) overlaps 0000:02:00.0 BAR 0 (0x0-0xffff), disabling pnp: PnP ACPI: found 10 devices ACPI: ACPI bus type pnp unregistered system 00:01: iomem range 0xfec00000-0xfec00fff has been reserved system 00:01: iomem range 0xfee00000-0xfee00fff has been reserved system 00:08: ioport range 0x1080-0x1080 has been reserved system 00:08: ioport range 0x40b-0x40b has been reserved system 00:08: ioport range 0x4d0-0x4d1 has been reserved system 00:08: ioport range 0x4d6-0x4d6 has been reserved system 00:08: ioport range 0xc00-0xc01 has been reserved system 00:08: ioport range 0xc14-0xc14 has been reserved system 00:08: ioport range 0xc50-0xc52 has been reserved system 00:08: ioport range 0xc6c-0xc6c has been reserved system 00:08: ioport range 0xc6f-0xc6f has been reserved system 00:08: ioport range 0xcd4-0xcd5 has been reserved system 00:08: ioport range 0xcd6-0xcd7 has been reserved system 00:08: ioport range 0xcd8-0xcdf has been reserved system 00:08: ioport range 0x8000-0x805f has been reserved system 00:08: ioport range 0xf40-0xf47 has been reserved system 00:08: ioport range 0x280-0x293 has been reserved system 00:08: ioport range 0x87f-0x87f has been reserved system 00:09: iomem range 0xe0000-0xfffff could not be reserved system 00:09: iomem range 0xfff00000-0xffffffff could not be reserved pci 0000:00:01.0: PCI bridge, secondary bus 0000:01 pci 0000:00:01.0: IO window: 0x9000-0x9fff pci 0000:00:01.0: MEM window: 0xfc000000-0xfc0fffff pci 0000:00:01.0: PREFETCH window: 0x000000f8000000-0x000000fbffffff pci 0000:00:04.0: PCI bridge, secondary bus 0000:02 pci 0000:00:04.0: IO window: disabled pci 0000:00:04.0: MEM window: 0x54000000-0x540fffff pci 0000:00:04.0: PREFETCH window: disabled pci 0000:00:05.0: PCI bridge, secondary bus 0000:04 pci 0000:00:05.0: IO window: disabled pci 0000:00:05.0: MEM window: disabled pci 0000:00:05.0: PREFETCH window: disabled pci 0000:06:04.0: CardBus bridge, secondary bus 0000:07 Switched to NOHz mode on CPU #0 Switched to NOHz mode on CPU #1 pci 0000:06:04.0: IO window: 0x00a400-0x00a4ff pci 0000:06:04.0: IO window: 0x00a800-0x00a8ff pci 0000:06:04.0: PREFETCH window: 0x50000000-0x53ffffff pci 0000:06:04.0: MEM window: 0x58000000-0x5bffffff pci 0000:00:14.4: PCI bridge, secondary bus 0000:06 pci 0000:00:14.4: IO window: 0xa000-0xafff pci 0000:00:14.4: MEM window: 0xfc200000-0xfc2fffff pci 0000:00:14.4: PREFETCH window: 0x00000050000000-0x00000053ffffff pci 0000:00:04.0: enabling device (0000 -> 0002) pci 0000:06:04.0: PCI INT A -> GSI 20 (level, low) -> IRQ 20 NET: Registered protocol family 2 IP route cache hash table entries: 32768 (order: 6, 262144 bytes) TCP established hash table entries: 131072 (order: 9, 2097152 bytes) TCP bind hash table entries: 65536 (order: 9, 2097152 bytes) TCP: Hash tables configured (established 131072 bind 65536) TCP reno registered NET: Registered protocol family 1 HugeTLB registered 2 MB page size, pre-allocated 0 pages Installing knfsd (copyright (C) 1996 okir@monad.swb.de). SGI XFS with security attributes, large block/inode numbers, no debug enabled msgmni has been set to 1931 alg: No test for stdrng (krng) io scheduler noop registered io scheduler anticipatory registered io scheduler deadline registered (default) io scheduler cfq registered pci 0000:00:00.0: MSI quirk detected; MSI disabled ACPI: AC Adapter [ACAD] (on-line) ACPI: Battery Slot [BAT1] (battery present) input: Power Button (FF) as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0 ACPI: Power Button (FF) [PWRF] input: Lid Switch as /devices/LNXSYSTM:00/device:00/PNP0C0D:00/input/input1 ACPI: Lid Switch [LID] input: Power Button (CM) as /devices/LNXSYSTM:00/device:00/PNP0C0C:00/input/input2 ACPI: Power Button (CM) [PWRB] input: Sleep Button (CM) as /devices/LNXSYSTM:00/device:00/PNP0C0E:00/input/input3 ACPI: Sleep Button (CM) [SLPB] ACPI: processor limited to max C-state 1 processor ACPI_CPU:00: registered as cooling_device0 processor ACPI_CPU:01: registered as cooling_device1 ACPI: Invalid active0 threshold thermal LNXTHERM:01: registered as thermal_zone0 ACPI: Thermal Zone [THRM] (66 C) lp: driver loaded but no devices found Linux agpgart interface v0.103 [drm] Initialized drm 1.1.0 20060810 pci 0000:01:05.0: power state changed by ACPI to D0 pci 0000:01:05.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17 [drm] Initialized radeon 1.29.0 20080528 on minor 0 Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled PPP generic driver version 2.4.2 PPP Deflate Compression module registered PPP BSD Compression module registered PPP MPPE Compression module registered NET: Registered protocol family 24 8139too Fast Ethernet driver 0.9.28 8139too 0000:06:01.0: power state changed by ACPI to D0 8139too 0000:06:01.0: PCI INT A -> GSI 21 (level, low) -> IRQ 21 eth0: RealTek RTL8139 at 0xffffc20000032000, 00:16:d4:ce:03:15, IRQ 21 ath5k 0000:02:00.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16 ath5k 0000:02:00.0: registered as 'phy0' wmaster0 (ath5k): not using net_device_ops yet wlan0 (ath5k): not using net_device_ops yet ath5k phy0: Atheros AR2425 chip found (MAC: 0xe2, PHY: 0x70) netconsole: local port 6666 netconsole: local IP 192.168.168.2 netconsole: interface eth0 netconsole: remote port 6667 netconsole: remote IP 192.168.168.1 netconsole: remote ethernet address 00:13:8f:e0:34:f5 netconsole: device eth0 not up yet, forcing it eth0: link up, 100Mbps, full-duplex, lpa 0xC5E1 netconsole: carrier detect appears untrustworthy, waiting 4 seconds console [netcon0] enabled netconsole: network logging started Driver 'sd' needs updating - please use bus_type methods Driver 'sr' needs updating - please use bus_type methods sata_sil 0000:00:12.0: enabling device (0005 -> 0007) sata_sil 0000:00:12.0: PCI INT A -> GSI 22 (level, low) -> IRQ 22 scsi0 : sata_sil scsi1 : sata_sil ata1: SATA max UDMA/100 mmio m512@0xfc507000 tf 0xfc507080 irq 22 ata2: SATA max UDMA/100 mmio m512@0xfc507000 tf 0xfc5070c0 irq 22 ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 310) ata1.00: ATA-7: Hitachi HTS541612J9SA00, SBDOC70P, max UDMA/100 ata1.00: 234441648 sectors, multi 16: LBA48 NCQ (depth 0/32) ata1.00: configured for UDMA/100 isa bounce pool size: 16 pages scsi 0:0:0:0: Direct-Access ATA Hitachi HTS54161 SBDO PQ: 0 ANSI: 5 sd 0:0:0:0: [sda] 234441648 512-byte hardware sectors: (120 GB/111 GiB) sd 0:0:0:0: [sda] Write Protect is off sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA sd 0:0:0:0: [sda] 234441648 512-byte hardware sectors: (120 GB/111 GiB) sd 0:0:0:0: [sda] Write Protect is off sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA sda: sda1 sda2 sda3 sd 0:0:0:0: [sda] Attached SCSI disk sd 0:0:0:0: Attached scsi generic sg0 type 0 ata2: SATA link down (SStatus 0 SControl 310) pata_atiixp 0000:00:14.1: PCI INT A -> GSI 16 (level, low) -> IRQ 16 scsi2 : pata_atiixp scsi3 : pata_atiixp ata3: PATA max UDMA/100 cmd 0x1f0 ctl 0x3f6 bmdma 0x8420 irq 14 ata4: PATA max UDMA/100 cmd 0x170 ctl 0x376 bmdma 0x8428 irq 15 ata3.00: ATAPI: Slimtype DVD A DS8A1P, CA11, max UDMA/33 ata3.00: configured for UDMA/33 scsi 2:0:0:0: CD-ROM Slimtype DVD A DS8A1P CA11 PQ: 0 ANSI: 5 sr0: scsi3-mmc drive: 24x/24x writer dvd-ram cd/rw xa/form2 cdda tray Uniform CD-ROM driver Revision: 3.20 sr 2:0:0:0: Attached scsi generic sg1 type 5 ieee1394: raw1394: /dev/raw1394 device initialized usbmon: debugfs is not available ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver ehci_hcd 0000:00:13.2: PCI INT A -> GSI 19 (level, low) -> IRQ 19 ehci_hcd 0000:00:13.2: EHCI Host Controller ehci_hcd 0000:00:13.2: new USB bus registered, assigned bus number 1 ehci_hcd 0000:00:13.2: irq 19, io mem 0xfc506000 ehci_hcd 0000:00:13.2: USB 2.0 started, EHCI 1.00 usb usb1: New USB device found, idVendor=1d6b, idProduct=0002 usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1 usb usb1: Product: EHCI Host Controller usb usb1: Manufacturer: Linux 2.6.29-rc6 ehci_hcd usb usb1: SerialNumber: 0000:00:13.2 usb usb1: configuration #1 chosen from 1 choice hub 1-0:1.0: USB hub found hub 1-0:1.0: 8 ports detected ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver ohci_hcd 0000:00:13.0: PCI INT A -> GSI 19 (level, low) -> IRQ 19 ohci_hcd 0000:00:13.0: OHCI Host Controller ohci_hcd 0000:00:13.0: new USB bus registered, assigned bus number 2 ohci_hcd 0000:00:13.0: irq 19, io mem 0xfc504000 usb usb2: New USB device found, idVendor=1d6b, idProduct=0001 usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1 usb usb2: Product: OHCI Host Controller usb usb2: Manufacturer: Linux 2.6.29-rc6 ohci_hcd usb usb2: SerialNumber: 0000:00:13.0 usb usb2: configuration #1 chosen from 1 choice hub 2-0:1.0: USB hub found hub 2-0:1.0: 4 ports detected ohci_hcd 0000:00:13.1: PCI INT A -> GSI 19 (level, low) -> IRQ 19 ohci_hcd 0000:00:13.1: OHCI Host Controller ohci_hcd 0000:00:13.1: new USB bus registered, assigned bus number 3 ohci_hcd 0000:00:13.1: irq 19, io mem 0xfc505000 usb usb3: New USB device found, idVendor=1d6b, idProduct=0001 usb usb3: New USB device strings: Mfr=3, Product=2, SerialNumber=1 usb usb3: Product: OHCI Host Controller usb usb3: Manufacturer: Linux 2.6.29-rc6 ohci_hcd usb usb3: SerialNumber: 0000:00:13.1 usb usb3: configuration #1 chosen from 1 choice hub 3-0:1.0: USB hub found hub 3-0:1.0: 4 ports detected usbcore: registered new interface driver usblp Initializing USB Mass Storage driver... usbcore: registered new interface driver usb-storage USB Mass Storage support registered. PNP: PS/2 Controller [PNP0303:KBC0,PNP0f13:MSS0] at 0x60,0x64 irq 1,12 i8042.c: Detected active multiplexing controller, rev 1.1. serio: i8042 KBD port at 0x60,0x64 irq 1 serio: i8042 AUX0 port at 0x60,0x64 irq 12 serio: i8042 AUX1 port at 0x60,0x64 irq 12 serio: i8042 AUX2 port at 0x60,0x64 irq 12 serio: i8042 AUX3 port at 0x60,0x64 irq 12 mice: PS/2 mouse device common for all mice rtc_cmos 00:04: RTC can wake from S4 rtc_cmos 00:04: rtc core: registered rtc_cmos as rtc0 rtc0: alarms up to one month, 114 bytes nvram i2c /dev entries driver piix4_smbus 0000:00:14.0: SMBus Host Controller at 0x8410, revision 0 k8temp 0000:00:18.3: Temperature readouts might be wrong - check erratum #141 cpuidle: using governor ladder cpuidle: using governor menu input: AT Translated Set 2 keyboard as /devices/platform/i8042/serio0/input/input4 sdhci: Secure Digital Host Controller Interface driver sdhci: Copyright(c) Pierre Ossman sdhci-pci 0000:06:04.2: SDHCI controller found [1524:0550] (rev 1) sdhci-pci 0000:06:04.2: PCI INT B -> GSI 23 (level, low) -> IRQ 23 Registered led device: mmc0:: mmc0: SDHCI controller on PCI [0000:06:04.2] using PIO sdhci-pci 0000:06:04.4: SDHCI controller found [1524:0551] (rev 1) sdhci-pci 0000:06:04.4: enabling device (0000 -> 0002) sdhci-pci 0000:06:04.4: PCI INT B -> GSI 23 (level, low) -> IRQ 23 Registered led device: mmc1:: mmc1: SDHCI controller on PCI [0000:06:04.4] using PIO usbcore: registered new interface driver usbhid usbhid: v2.6:USB HID core driver Advanced Linux Sound Architecture Driver Version 1.0.18a. HDA Intel 0000:00:14.2: PCI INT A -> GSI 16 (level, low) -> IRQ 16 ALSA device list: #0: HDA ATI SB at 0xfc500000 irq 16 TCP cubic registered NET: Registered protocol family 17 RPC: Registered udp transport module. RPC: Registered tcp transport module. powernow-k8: Found 1 AMD Turion(tm) 64 X2 Mobile Technology TL-52 processors (2 cpu cores) (version 2.20.00) powernow-k8: 0 : fid 0x8 (1600 MHz), vid 0x13 powernow-k8: 1 : fid 0x0 (800 MHz), vid 0x1e usb 1-4: new high speed USB device using ehci_hcd and address 2 usb 1-4: New USB device found, idVendor=5986, idProduct=0100 usb 1-4: New USB device strings: Mfr=0, Product=1, SerialNumber=0 usb 1-4: Product: USB2.0 Camera usb 1-4: configuration #1 chosen from 1 choice Synaptics Touchpad, model: 1, fw: 6.2, id: 0x1280b1, caps: 0xa04713/0x204000 input: SynPS/2 Synaptics TouchPad as /devices/platform/i8042/serio4/input/input5 rtc_cmos 00:04: setting system clock to 2009-03-02 07:47:08 UTC (1235980028) EXT4-fs: INFO: recovery required on readonly filesystem. EXT4-fs: write access will be enabled during recovery. EXT4-fs: barriers enabled EXT4-fs: delayed allocation enabled EXT4-fs: file extents enabled EXT4-fs: mballoc enabled EXT4-fs: recovery complete. kjournald2 starting: pid 1243, dev sda2:8, commit interval 11 seconds EXT4-fs: mounted filesystem sda2 with ordered data mode VFS: Mounted root (ext4 filesystem) readonly on device 8:2. debug: unmapping init memory ffffffff80836000..ffffffff80888000 Write protecting the kernel read-only data: 5836k usb 2-4: new low speed USB device using ohci_hcd and address 2 usb 2-4: New USB device found, idVendor=046d, idProduct=c019 usb 2-4: New USB device strings: Mfr=1, Product=2, SerialNumber=0 usb 2-4: Product: USB Optical Mouse usb 2-4: Manufacturer: Logitech usb 2-4: configuration #1 chosen from 1 choice input: Logitech USB Optical Mouse as /devices/pci0000:00/0000:00:13.0/usb2/2-4/2-4:1.0/input/input6 generic-usb 0003:046D:C019.0001: input: USB HID v1.11 Mouse [Logitech USB Optical Mouse] on usb-0000:00:13.0-4/input0 SysRq : Changing Loglevel Loglevel set to 8 EXT4-fs warning: maximal mount count reached, running e2fsck is recommended EXT4 FS on sda2, internal journal on sda2:8 EXT4-fs: barriers enabled kjournald2 starting: pid 2532, dev sda3:8, commit interval 11 seconds EXT4-fs warning: maximal mount count reached, running e2fsck is recommended EXT4 FS on sda3, internal journal on sda3:8 EXT4-fs: delayed allocation enabled EXT4-fs: file extents enabled EXT4-fs: mballoc enabled EXT4-fs: recovery complete. EXT4-fs: mounted filesystem sda3 with ordered data mode Adding 2008084k swap on /dev/sda1. Priority:-1 extents:1 across:2008084k wlan0: deauthenticating by local choice (reason=3) ath5k phy0: bf=ffff88003c96f480 bf_skb=(null) ath5k phy0: bf=ffff88003c96f480 bf_skb=(null) [drm] Setting GART location based on new memory map [drm] Loading R300 Microcode [drm] Num pipes: 4 [drm] writeback test succeeded in 1 usecs ------------[ cut here ]------------ WARNING: at net/mac80211/tx.c:567 invoke_tx_handlers+0xdd9/0xe40() Hardware name: Aspire 5100 Modules linked in: Pid: 3213, comm: pdnsd Not tainted 2.6.29-rc6 #2 Call Trace: [<ffffffff80243280>] warn_slowpath+0xd0/0x130 [<ffffffff8029c820>] ? do_brk+0x360/0x3e0 [<ffffffff8020c50e>] ? common_interrupt+0xe/0x13 [<ffffffff80647c99>] invoke_tx_handlers+0xdd9/0xe40 [<ffffffff805a8da5>] ? skb_release_data+0x85/0xd0 [<ffffffff8066653d>] ? _spin_unlock_irqrestore+0x1d/0x50 [<ffffffff8064698d>] ? __ieee80211_tx_prepare+0x19d/0x310 [<ffffffff80649087>] ieee80211_master_start_xmit+0x227/0x510 [<ffffffff805b169d>] dev_hard_start_xmit+0x24d/0x2d0 [<ffffffff805c34ee>] __qdisc_run+0x23e/0x290 [<ffffffff805b1ae0>] dev_queue_xmit+0x290/0x5a0 [<ffffffff80648bd7>] ieee80211_subif_start_xmit+0x3d7/0x660 [<ffffffff805b169d>] dev_hard_start_xmit+0x24d/0x2d0 [<ffffffff805c34ee>] __qdisc_run+0x23e/0x290 [<ffffffff805b1ae0>] dev_queue_xmit+0x290/0x5a0 [<ffffffff805b849c>] neigh_resolve_output+0x10c/0x2d0 [<ffffffff805d6c7a>] ip_finish_output+0x14a/0x320 [<ffffffff805d6ee7>] ip_output+0x97/0xf0 [<ffffffff805d5be0>] ip_local_out+0x20/0x30 [<ffffffff805d5ed1>] ip_push_pending_frames+0x2e1/0x450 [<ffffffff805f59ad>] udp_push_pending_frames+0x13d/0x3e0 [<ffffffff805f7459>] udp_sendmsg+0x319/0x740 [<ffffffff80249459>] ? local_bh_enable_ip+0x59/0xc0 [<ffffffff805f83af>] ? arp_bind_neighbour+0x6f/0xb0 [<ffffffff805fdd75>] inet_sendmsg+0x45/0x80 [<ffffffff805a12df>] sock_sendmsg+0xdf/0x110 [<ffffffff8025a7a0>] ? autoremove_wake_function+0x0/0x40 [<ffffffff802b43de>] ? fget_light+0xce/0xe0 [<ffffffff805a0915>] ? sockfd_lookup_light+0x25/0x80 [<ffffffff805a171a>] sys_sendto+0xea/0x120 [<ffffffff805fddee>] ? inet_dgram_connect+0x3e/0x80 [<ffffffff805a0bdd>] ? sys_connect+0x9d/0xa0 [<ffffffff802b1222>] ? fd_install+0x52/0x60 [<ffffffff8020bbdb>] system_call_fastpath+0x16/0x1b ---[ end trace 5e4271fb8fc22a18 ]--- ------------[ cut here ]------------ kernel BUG at net/mac80211/rate.c:239! invalid opcode: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC last sysfs file: /sys/devices/LNXSYSTM:00/device:00/PNP0A03:00/device:1c/PNP0C0A:00/power_supply/BAT1/charge_full CPU 1 Modules linked in: Pid: 0, comm: swapper Tainted: G W 2.6.29-rc6 #2 Aspire 5100 RIP: 0010:[<ffffffff806413ca>] [<ffffffff806413ca>] rate_control_get_rate+0xba/0xc0 RSP: 0018:ffff88003d8b7630 EFLAGS: 00010286 RAX: 00000000ffffffff RBX: ffff88003a0a73f0 RCX: ffff88003d8b75ec RDX: 0000000000000000 RSI: ffff88003a0a73f9 RDI: ffff88003d8b75ec RBP: ffff88003d8b7640 R08: 0000000000000058 R09: 0000000000000001 R10: ffff88003b49ebd0 R11: 0000000000000060 R12: ffff88003d82c7e0 R13: ffff88003a0a73f0 R14: ffff88003d8b7770 R15: ffff88003c9a9b30 FS: 00007fc2db5b86f0(0000) GS:ffff88003d8047d0(0000) knlGS:0000000000000000 CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b CR2: 00007fa6caf3a034 CR3: 0000000000155000 CR4: 00000000000006e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process swapper (pid: 0, threadinfo ffff88003d8b0000, task ffff88003d88b300) Stack: 0000000000000000 ffff88003a0a73c0 ffff88003d8b7740 ffffffff806473a2 ffffffff80827c50 ffffffff805a8da5 ffff88003d8b76a0 ffff88003a0a73c0 000088003c5955f8 ffff88003b509e84 ffff88003c5955a0 0000000000000286 Call Trace: <IRQ> <0> [<ffffffff806473a2>] invoke_tx_handlers+0x4e2/0xe40 [<ffffffff805a8da5>] ? skb_release_data+0x85/0xd0 [<ffffffff8066653d>] ? _spin_unlock_irqrestore+0x1d/0x50 [<ffffffff8064698d>] ? __ieee80211_tx_prepare+0x19d/0x310 [<ffffffff80649087>] ieee80211_master_start_xmit+0x227/0x510 [<ffffffff805b169d>] dev_hard_start_xmit+0x24d/0x2d0 [<ffffffff805c34ee>] __qdisc_run+0x23e/0x290 [<ffffffff805b1ae0>] dev_queue_xmit+0x290/0x5a0 [<ffffffff80648bd7>] ieee80211_subif_start_xmit+0x3d7/0x660 [<ffffffff8064b753>] ? ieee80211_led_tx+0x33/0x50 [<ffffffff805b169d>] dev_hard_start_xmit+0x24d/0x2d0 [<ffffffff805c34ee>] __qdisc_run+0x23e/0x290 [<ffffffff805b1ae0>] dev_queue_xmit+0x290/0x5a0 [<ffffffff805d6cf7>] ip_finish_output+0x1c7/0x320 [<ffffffff805d6ee7>] ip_output+0x97/0xf0 [<ffffffff805d5be0>] ip_local_out+0x20/0x30 [<ffffffff805d64c4>] ip_queue_xmit+0x214/0x410 [<ffffffff802ad8b0>] ? init_object+0x50/0x90 [<ffffffff802ae9a8>] ? __slab_alloc+0x148/0x720 [<ffffffff805eabee>] ? tcp_send_ack+0x2e/0x120 [<ffffffff805ea855>] tcp_transmit_skb+0x505/0x7a0 [<ffffffff805eac97>] tcp_send_ack+0xd7/0x120 [<ffffffff805e79cc>] __tcp_ack_snd_check+0x5c/0xb0 [<ffffffff805e8803>] tcp_rcv_established+0x803/0x9a0 [<ffffffff805f01c5>] tcp_v4_do_rcv+0xd5/0x210 [<ffffffff805f0964>] tcp_v4_rcv+0x664/0x6f0 [<ffffffff805d14b1>] ip_local_deliver_finish+0xc1/0x170 [<ffffffff805d15ed>] ip_local_deliver+0x8d/0xa0 [<ffffffff805d0efb>] ip_rcv_finish+0x12b/0x340 [<ffffffff805d1363>] ip_rcv+0x253/0x2e0 [<ffffffff805b078a>] netif_receive_skb+0x28a/0x360 [<ffffffff8025de89>] ? ktime_get_ts+0x59/0x60 [<ffffffff805b0d60>] napi_gro_receive+0x60/0x70 [<ffffffff805b0df2>] process_backlog+0x82/0xd0 [<ffffffff805af239>] net_rx_action+0x139/0x200 [<ffffffff8024967d>] __do_softirq+0x6d/0x130 [<ffffffff8020cc6c>] call_softirq+0x1c/0x30 [<ffffffff8020e58d>] do_softirq+0x3d/0x80 [<ffffffff8024936d>] irq_exit+0x7d/0xa0 [<ffffffff8020e842>] do_IRQ+0xd2/0x1d0 [<ffffffff8020c513>] ret_from_intr+0x0/0xa <EOI> <0> [<ffffffff80213842>] ? default_idle+0x42/0x50 [<ffffffff80213aa5>] ? c1e_idle+0xa5/0x100 [<ffffffff8025ef71>] ? atomic_notifier_call_chain+0x11/0x20 [<ffffffff8020ab3f>] ? cpu_idle+0x5f/0xc0 [<ffffffff8065f8bc>] ? start_secondary+0x157/0x1ab Code: 48 83 c1 03 48 83 f9 0f 75 d9 80 7b 08 00 78 1b 5b 41 5c c9 c3 0f 1f 40 00 48 8b 47 08 4c 89 c6 48 8b 7f 10 ff 50 40 66 90 eb aa <0f> 0b eb fe 66 90 55 48 83 c7 18 48 c7 c6 20 14 64 80 48 89 e5 RIP [<ffffffff806413ca>] rate_control_get_rate+0xba/0xc0 RSP <ffff88003d8b7630> ---[ end trace 5e4271fb8fc22a19 ]--- Kernel panic - not syncing: Fatal exception in interrupt Well, these warnings are the same as in the original report. So back to square 1. I'm still unable to reproduce this here. Can you try building with pid controller instead of MAC80211_RC_DEFAULT_PID and see if you still get oopses? Also if it's easy to reproduce, you can try bisecting it from 2.6.28. I don't suppose this got magically fixed in 2.6.30-rc did it? There was one patch which fixed an unmapping error, and another which fixed a skb_free error, either of which ostensibly could cause random memory corruption. There are some weird things in your dmesg: pci 0000:02:00.0: BAR 0: can't allocate resource [...] pnp 00:09: mem resource (0x0-0xfff) overlaps 0000:02:00.0 BAR 0 (0x0-0xffff), disabling but I don't think those really matter, iomap still succeeded in the driver. References : http://lkml.org/lkml/2009/4/6/527 I have system crush after few hours of work, when wireless rate algorithm set to auto. When I use "iwconfig wlan0 rate 12M" system doesn't crush. but today I have received kmesg log about few Gb whith following messages: WARNING: at net/mac80211/rc80211_minstrel.c:69 minstrel_tx_status+0xa2/0x120 [mac80211]() Hardware name: 965P-S3 Modules linked in: isofs nls_cp1251 nls_utf8 smbfs nls_base ppp_deflate zlib_deflate zlib_inflate bsd_comp ppp_async crc_ccitt ppp_generic slhc af_packet coretemp it87 hwmon_vid hwmon radeon drm agpgart fuse hid_microsoft usbhid hid usb_storage tuner tea5767 tda8290 tuner_xc2028 xc5000 tda9887 tuner_simple tuner_types mt20xx tea5761 arc4 ecb snd_ice1724 snd_rawmidi snd_seq_device snd_ice17xx_ak4xxx snd_ac97_codec ac97_bus snd_ak4xxx_adda saa7134 floppy snd_ak4114 snd_pcm ath5k i2c_i801 ir_common snd_timer snd_page_alloc v4l2_common mac80211 snd_pt2258 videodev videobuf_dma_sg snd_i2c snd videobuf_core cfg80211 soundcore tveeprom sky2 ehci_hcd uhci_hcd usbcore rtc_cmos rtc_core 8250_pnp rtc_lib 8250 serial_core evdev unix Pid: 0, comm: swapper Tainted: G W 2.6.29-gentoo-r1-N1 #1 Call Trace: [<c012b3d7>] warn_slowpath+0x87/0xe0 [<f8dcb6ff>] __ieee80211_rx+0x1af/0x6d0 [mac80211] [<f8dd5832>] minstrel_tx_status+0xa2/0x120 [mac80211] [<f8db8e9c>] ieee80211_tx_status+0xfc/0x4d0 [mac80211] [<f8e27cf7>] ath5k_tasklet_tx+0x1c7/0x360 [ath5k] [<c0148948>] clocksource_get_next+0x38/0x40 [<c0147312>] update_wall_time+0x492/0x8d0 [<c012ff70>] tasklet_action+0x50/0xd0 [<c01306c7>] __do_softirq+0x97/0x160 [<c0117753>] ack_apic_level+0x73/0x290 [<c01307cd>] do_softirq+0x3d/0x50 [<c0130a15>] irq_exit+0x75/0xa0 [<c0105828>] do_IRQ+0x48/0x90 [<c0143e78>] hrtimer_start+0x18/0x20 [<c01039e7>] common_interrupt+0x27/0x2c [<c010a3ac>] mwait_idle+0x4c/0x60 [<c0102335>] cpu_idle+0x65/0xa0 ---[ end trace ea41fd0ecb4f71fc ]--- Is this related to this bug? I apply patch from http://lkml.org/lkml/2009/4/6/527. My wifi network rate became permanetly 1Mb/s in auto mod. Setting constant rate works fine. Yeah sounds like the same issue. The patch detects the condition and sets it to lowest rate (usually 1 mb/s) rather than crash. Can you try capturing a scan of your network using "iw dev wlan0 scan trigger; sleep 10; iw dev wlan0 scan dump > scan.txt"? I want to see if it has something to do with available AP rates. "iw dev wlan0 scan trigger" returns
"command failed: Operation not supported (-95)".
But "iwlist scan" returns
wlan0 Scan completed :
Cell 01 - Address: 4A:A3:B1:4A:9B:4F
ESSID:"BUBLENET2"
Mode:Ad-Hoc
Channel:11
Frequency:2.462 GHz (Channel 11)
Quality=74/100 Signal level:-56 dBm Noise level=-82 dBm
Encryption key:off
IE: Unknown: 00094255424C454E455432
IE: Unknown: 010882848B962430486C
IE: Unknown: 03010B
IE: Unknown: 06020000
IE: Unknown: 2A0100
IE: Unknown: 2F0100
IE: Unknown: 32040C121860
IE: Unknown: DD09001018020010000000
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
24 Mb/s; 36 Mb/s; 54 Mb/s; 6 Mb/s; 9 Mb/s
12 Mb/s; 48 Mb/s
Extra:tsf=000000003406c707
Extra: Last beacon: 10ms ago
I have gentoo-2.6.29-r1 kernel and the following card:
lspci -s 05:01.0 -vvx
05:01.0 Ethernet controller: Atheros Communications Inc. AR2413 802.11bg NIC (rev 01)
Subsystem: Atheros Communications Inc. TP-Link TL-WN510G Wireless CardBus Adapter
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 168 (2500ns min, 7000ns max), Cache Line Size: 32 bytes
Interrupt: pin A routed to IRQ 19
Region 0: Memory at f8100000 (32-bit, non-prefetchable) [size=64K]
Capabilities: <access denied>
Kernel driver in use: ath5k
Kernel modules: ath5k
00: 8c 16 1a 00 06 00 90 02 01 00 00 02 08 a8 00 00
10: 00 00 10 f8 00 00 00 00 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 01 50 00 00 8c 16 52 10
30: 00 00 00 00 44 00 00 00 00 00 00 00 0f 01 0a 1c
Here is part of my kernel config
CONFIG_WIRELESS=y
CONFIG_CFG80211=m
# CONFIG_CFG80211_REG_DEBUG is not set
CONFIG_NL80211=y
CONFIG_WIRELESS_OLD_REGULATORY=y
CONFIG_WIRELESS_EXT=y
# CONFIG_WIRELESS_EXT_SYSFS is not set
CONFIG_LIB80211=m
# CONFIG_LIB80211_DEBUG is not set
CONFIG_MAC80211=m
#
# Rate control algorithm selection
#
CONFIG_MAC80211_RC_MINSTREL=y
# CONFIG_MAC80211_RC_DEFAULT_PID is not set
CONFIG_MAC80211_RC_DEFAULT_MINSTREL=y
CONFIG_MAC80211_RC_DEFAULT="minstrel"
CONFIG_MAC80211_MESH=y
CONFIG_MAC80211_LEDS=y
# CONFIG_MAC80211_DEBUG_MENU is not set
# CONFIG_WIMAX is not set
# CONFIG_RFKILL is not set
# CONFIG_NET_9P is not set
and some dmesg output
ath5k 0000:05:01.0: PCI INT A -> GSI 19 (level, low) -> IRQ 19
ath5k 0000:05:01.0: registered as 'phy0'
Floppy drive(s): fd0 is 1.44M
FDC 0 is a post-1991 82077
saa7130/34: v4l2 driver version 0.2.14 loaded
wmaster0 (ath5k): not using net_device_ops yet
phy0: Selected rate control algorithm 'minstrel'
wlan0 (ath5k): not using net_device_ops yet
ath5k phy0: Atheros AR2413 chip found (MAC: 0x78, PHY: 0x45)
-----------------
wlan0: deauthenticating by local choice (reason=3)
ath5k phy0: bf=f65121c0 bf_skb=(null)
wlan0: Trigger new scan to find an IBSS to join
ath5k phy0: bf=f65121c0 bf_skb=(null)
ath5k phy0: bf=f65121c0 bf_skb=(null)
ath5k phy0: bf=f65121c0 bf_skb=(null)
ath5k phy0: bf=f65121c0 bf_skb=(null)
ath5k phy0: bf=f65121c0 bf_skb=(null)
ath5k phy0: bf=f65121c0 bf_skb=(null)
ath5k phy0: bf=f65121c0 bf_skb=(null)
ath5k phy0: bf=f65121c0 bf_skb=(null)
ath5k phy0: bf=f65121c0 bf_skb=(null)
wlan0: Trigger new scan to find an IBSS to join
__ratelimit: 2 callbacks suppressed
ath5k phy0: bf=f65121c0 bf_skb=(null)
ath5k phy0: bf=f65121c0 bf_skb=(null)
ath5k phy0: bf=f65121c0 bf_skb=(null)
ath5k phy0: bf=f65121c0 bf_skb=(null)
ath5k phy0: bf=f65121c0 bf_skb=(null)
ath5k phy0: bf=f65121c0 bf_skb=(null)
ath5k phy0: bf=f65121c0 bf_skb=(null)
ath5k phy0: bf=f65121c0 bf_skb=(null)
ath5k phy0: bf=f65121c0 bf_skb=(null)
ath5k phy0: bf=f65121c0 bf_skb=(null)
wlan0: Creating new IBSS network, BSSID 4a:a3:b1:4a:9b:4f
wlan0: deauthenticating by local choice (reason=3)
By the way I receive system hang on 2.6.29 kernel with constant rate 12Mb, so just now I'm using 2.6.27 kernel, which have no auto rate.
Bob, did you get a chance to look at this? Yeah, bug 13000 sounds like the same and has a promising lead (AP with weird rate sets), I just now created a setup to test it. Also there were a couple of patches in 2.6.30 which may have a positive effect (Jiri's bugfix for minstrel that broke every single band card did fix some memory corruption, and mine to flush the queues when changing channels can keep it from reporting bogus rates). http://lkml.org/lkml/2009/4/7/636 is a band-aid patch but someone reported it still crashed with it. Ok, I could reproduce this at last. Patch is here: http://lkml.org/lkml/2009/6/5/269 Bug is still there, i reproduced it on a VIA C7 with 2 cards in ad-hoc mode @ fixed rate (54M). After i handled the NULL rate on base.c (ath5k_txbuf_setup) by returning -EINVAL and drop the packet i further debuged this and found that if i set the rate after the 2 cards associate (iwconfig wlan0 rate 54M) then ieee80211_get_tx_rate doesn't return NULL anymore and everything works fine. So it seems that fixed rate info is lost after the cards associate. Also ieee80211_get_tx_rate returns NULL (if i don't set the rate after association) only for data frames, beacons work fine. Don't have time to debug this further, hope it helps. Well, must be more than one bug at play then. Can you verify that my fix to minstrel is in your kernel? Yup, i used the current wireless-testing and checked for your fix. |