Bug 13364

What radeon card are you using?  Is PAT enabled?

PAT is enabled. Card is Radeon XPress 200M RC410.

Is this reproducible?  If so does booting with nopat help?  Also, what do you mean by 'clean' kernel?  Are you running with local changes?  Does this still happen with a vanilla kernel?

(In reply to comment #3)
> Is this reproducible?

As far - no as written.

> If so does booting with nopat help?  Also, what do you
> mean by 'clean' kernel?  Are you running with local changes?

A Gentoo tuxonice patchset.

> Does this still
> happen with a vanilla kernel?

I tried several time. What I observed is that either I cannot switch to a console or it does not ocure. It striked me now that this might prevent the changing to console (which would mean that it is present also on mainline git + wireless-testing + tuxonice). I'll test it.

I have the same problem, but X also starts at the second attempt. Sometimes starting X totally hangs the computer.

dmesg portion:

... radeon module is loaded by boot process:
[drm] Initialized drm 1.1.0 20060810
[drm] Initialized radeon 1.30.0 20080528 for 0000:01:05.0 on minor 0
... booting goes on. It finishes, I start X:
[drm] Setting GART location based on new memory map
BUG: unable to handle kernel paging request at 1b513c28
IP: [<f9271cdd>] radeon_set_pcigart+0x4d1/0x13d7 [radeon]
*pdpt = 000000002e171001 *pde = 0000000000000000 
Oops: 0000 [#1] SMP 
last sysfs file: /sys/devices/pci0000:00/0000:00:01.0/0000:01:05.0/enable
Modules linked in: ipv6 af_packet snd_pcm_oss snd_mixer_oss radeon drm snd_hda_codec_si3054 snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore snd_page_alloc atiixp ftdi_sio usbserial loop uhci_hcd ati_agp agpgart radeonfb fb_ddc i2c_algo_bit i2c_core 8139too mii kqemu fuse thermal ac battery asus_laptop led_class tun usb_storage dm_mod usbhid ohci_hcd ehci_hcd usbcore ide_cd_mod sr_mod cdrom ata_piix ahci btrfs zlib_deflate libcrc32c crc32c libata jfs xfs exportfs ext3 jbd

Pid: 2331, comm: X Not tainted (2.6.31-rc2-default #1) X51RL               
EIP: 0060:[<f9271cdd>] EFLAGS: 00013246 CPU: 0
EIP is at radeon_set_pcigart+0x4d1/0x13d7 [radeon]
EAX: 00000000 EBX: ec972c00 ECX: ec972c00 EDX: 000000ff
ESI: 00000001 EDI: 00000000 EBP: ec972800 ESP: ec137e60
 DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
Process X (pid: 2331, ti=ec136000 task=ec932830 task.ti=ec136000)
Stack:
 f92e0b08 ec972c00 00000000 f9273f21 f9201393 f6dcbb40 00000000 ec137e98
<0> 00000040 40546440 f6dcbb40 f91f4648 ec972800 f92733f8 00000004 00000898
<0> 00000001 40000000 02000000 00100000 000186a0 00000020 00000000 00003000
Call Trace:
 [<f9273f21>] ? radeon_cp_init+0xb29/0xb7c [radeon]
 [<f91f4648>] ? drm_ioctl+0x1c3/0x242 [drm]
 [<f92733f8>] ? radeon_cp_init+0x0/0xb7c [radeon]
 [<c01a723d>] ? vfs_ioctl+0x49/0x5f
 [<c01a77a4>] ? do_vfs_ioctl+0x4aa/0x4e5
 [<c019d190>] ? vfs_write+0xf4/0x105
 [<c01a7820>] ? sys_ioctl+0x41/0x58
 [<c0107714>] ? sysenter_do_call+0x12/0x28
Code: 03 00 00 b2 ff 8b 40 14 05 68 01 00 00 89 10 ba 2e 00 00 00 89 d8 e8 aa e4 ff ff a8 01 74 0c b8 c7 10 00 00 e8 4e 56 fc c6 eb e4 <8b> 83 28 10 ba 2e 00 00 00 89 d8 e8 aa e4 ff ff a8 01 74 0c b8 
EIP: [<f9271cdd>] radeon_set_pcigart+0x4d1/0x13d7 [radeon] SS:ESP 0068:ec137e60
CR2: 000000001b513c28
---[ end trace 9ce0b9a02936fcbc ]---
[drm:drm_release] *ERROR* Device busy: 1

Screen goes blank. FB console is not accessible.

Afterwards, I relaunch X (screen was off):

SysRq : Keyboard mode set to system default
[drm] Setting GART location based on new memory map
[drm] Loading R300 Microcode
[drm] Num pipes: 3
[drm] writeback test succeeded in 1 usecs
... some networking events ...
[drm] Num pipes: 3
mtrr: no MTRR for 90000000,8000000 found
[drm] Setting GART location based on new memory map
[drm] Loading R300 Microcode
[drm] Num pipes: 3
[drm] writeback test succeeded in 1 usecs

Now I see X session (still no switching to FB console, and send you the BUG output.

uname -a:
Linux 401a0bf1.ignorelist.com 2.6.31-rc2-default #1 SMP Mon Jul 6 19:44:22 UTC 2009 i686 GNU/Linux

Patches: No externals. Vanilla 2.6.28 tarball + 2.6.29 patch + 2.6.30 patch + 2.6.31-rc2 patch. Compiled with some random personal configuration.

video card:
ATI Technologies Inc RC410 [Radeon Xpress 200M] (1002:5a62)

Reproducibility: close to 100% while doing nothing special. Sometimes system hangs, so it would require finding HW to get dmesg in these cases. 

# CONFIG_X86_PAT is not set

It's me again - testing with 2.6.31-rc4.

I have FB console (fbterm works OK) and launched X (DRI is enabled). No blank screens, switches are OK, no paging request complains. Looks like the fixes helped. 

Thanks a lot.

Behavior became less reproducible after I added some modules (notably acpi video.ko). Although I have less upleasant effects than earlier. 

I get blank screen, but when I relaunch X FB console goes back up, too.

[  259.477785] BUG: unable to handle kernel paging request at 838b00fa
[  259.477798] IP: [<fa817681>] radeon_set_pcigart+0x5f6/0x2764 [radeon]
[  259.477817] *pdpt = 000000002cca6001 *pde = 0000000000000000 
[  259.477823] Oops: 0000 [#1] SMP 
[  259.477827] last sysfs file: /sys/devices/pci0000:00/0000:00:01.0/0000:01:05.0/enable
[  259.477834] Modules linked in: usblp raid456 raid6_pq async_xor async_memcpy async_tx xor raid1 raid0 md_mod snd_pcm_oss sn
d_mixer_oss af_packet video output ipv6 ipip tunnel4 radeon drm snd_hda_codec_si3054 snd_hda_codec_realtek snd_hda_intel snd_h
da_codec snd_hwdep snd_pcm snd_timer snd soundcore snd_page_alloc ftdi_sio usbserial loop ati_agp agpgart p4_clockmod speedste
p_lib 8139too mii kqemu fuse thermal thermal_sys hwmon ac battery tun usb_storage usb_libusual dm_mod ide_generic ide_gd_mod p
ata_marvell ata_piix sata_uli sata_sis pata_sis sata_via sata_nv xtkbd atkbd ohci_hcd ssb pcmcia pcmcia_core firmware_class eh
ci_hcd uhci_hcd usbhid hid usbcore unix btrfs zlib_deflate libcrc32c crc32c sd_mod crc_t10dif jfs nls_base xfs exportfs ext3 j
bd mbcache synaptics_i2c sermouse psmouse libps2 pcips2 i8042 serio evdev mousedev ide_cd_mod ide_core pktcdvd ahci sr_mod cdr
om pata_atiixp libata scsi_mod radeonfb fb_ddc backlight i2c_algve o_bit cfbcopyarea i2c_core cfbimgblt cfbfillrect fbcon fbdev tileblit font bitblit fbcon_rotate fbcon_cw fbcon_ud fbcon_ccw softcursor fb
[  259.477961] 
[  259.477966] Pid: 5072, comm: X Not tainted (2.6.31-rc4 #1) X51RL               
[  259.477970] EIP: 0060:[<fa817681>] EFLAGS: 00013246 CPU: 0
[  259.477981] EIP is at radeon_set_pcigart+0x5f6/0x2764 [radeon]
[  259.477985] EAX: fa8a016e EBX: ea5c3000 ECX: 2ed68000 EDX: 44000039
[  259.477989] ESI: 00000001 EDI: 00000000 EBP: ec481e58 ESP: ec481e48
[  259.477992]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
[  259.477997] Process X (pid: 5072, ti=ec481000 task=f19c49e0 task.ti=ec481000)
[  259.478000] Stack:
[  259.478002]  66000001 00000000 ea5c3000 00000000 ec481e78 fa81ba30 ec481e70 ec8c0c60
[  259.478011] <0> ea5c2c00 fa86f96c ec481e8c 40546440 ec481f18 fa762ae0 ec8c0c60 ea5c2c00
[  259.478020] <0> fa81a80e 00000004 00000898 00000001 40000000 02000000 00100000 000186a0
[  259.478030] Call Trace:
[  259.478043]  [<fa81ba30>] ? radeon_cp_init+0x1222/0x15b0 [radeon]
[  259.478073]  [<fa762ae0>] ? drm_ioctl+0x38a/0x492 [drm]
[  259.478086]  [<fa81a80e>] ? radeon_cp_init+0x0/0x15b0 [radeon]
[  259.478111]  [<c118e013>] ? vfs_ioctl+0xc6/0xf4
[  259.478117]  [<c118eab1>] ? do_vfs_ioctl+0x907/0x933
[  259.478124]  [<c1176cc7>] ? fsnotify_modify+0xa2/0xbb
[  259.478129]  [<c117704c>] ? do_sync_write+0x0/0x13d
[  259.478135]  [<c1178211>] ? vfs_write+0x14a/0x17e
[  259.478140]  [<c118eb6a>] ? sys_ioctl+0x8d/0xdf
[  259.478146]  [<c1005543>] ? sysenter_do_call+0x12/0x28
[  259.478149] Code: 15 3c 13 87 fa 00 ba 39 00 00 8b 40 14 05 68 01 00 00 66 ba ff 00 89 10 83 05 38 13 87 fa 01 83 15 3c 13 87 fa 00 ba 39 00 00 44 <13> 87 fa 00 8b 83 3c 03 00 00 8b 40 14 83 c0 78 ba 39 02 00 00 
[  259.478199] EIP: [<fa817681>] radeon_set_pcigart+0x5f6/0x2764 [radeon] SS:ESP 0068:ec481e48
[  259.478212] CR2: 00000000838b00fa
[  259.478217] ---[ end trace 8d09e68c39e6286a ]---