Bug 41192

Created attachment 68892 [details]
config of latest kernel

experienced these troubles since I got this notebook. -> 2.6.36

(switched to email.  Please respond via emailed reply-to-all, not via the
bugzilla web interface).

On Mon, 15 Aug 2011 12:03:56 GMT
bugzilla-daemon@bugzilla.kernel.org wrote:

> https://bugzilla.kernel.org/show_bug.cgi?id=41192
> 
>            Summary: acer aspire one d522 locks up due to NIC
>            Product: Drivers
>            Version: 2.5
>           Platform: All
>         OS/Version: Linux
>               Tree: Mainline
>             Status: NEW
>           Severity: normal
>           Priority: P1
>          Component: Network
>         AssignedTo: drivers_network@kernel-bugs.osdl.org
>         ReportedBy: willi@goesgens.de
>         Regression: No
> 
> 
> Created an attachment (id=68882)
>  --> (https://bugzilla.kernel.org/attachment.cgi?id=68882)
> dmesg output of whole system run
> 
> This netbook is equipped with:
> 06:00.0 Ethernet controller: Atheros Communications AR8152 v2.0 Fast Ethernet
> (rev c1)
> 07:00.0 Network controller: Atheros Communications Inc. AR9285 Wireless
> Network
> Adapter (PCI-Express) (rev 01)
> 
> if there is a network manager probing the cable NIC for the cable status, the
> whole system locks up completely.
> 
> the lockup can be circumvented by: 
>  - not loading the kernel module for the cable NIC
>  - not starting 'network manager' or 'WICD', same problems on both.
>  - turning on the systems netboot agent as pointed out by walterav on
>
> http://phoronix.com/forums/showthread.php?31961-Notes-on-Acer-Aspire-One-522/page7
> 
> 
> Module                  Size  Used by
> bnep                   17346  2 
> rfcomm                 73852  0 
> bluetooth             252589  10 bnep,rfcomm
> binfmt_misc             7588  1 
> fuse                   70593  1 
> synaptics_i2c_rmi4      7979  0 
> ath9k                  83089  0 
> mac80211              248833  1 ath9k
> ath9k_common            2456  1 ath9k
> ath9k_hw              302986  2 ath9k,ath9k_common
> k10temp                 3378  0 
> uvcvideo               57863  0 
> ath                    15715  2 ath9k,ath9k_hw
> cfg80211              211736  3 ath9k,mac80211,ath
> atl1c                  45270  0 
> rfkill                 19387  3 bluetooth,cfg80211
> sp5100_tco              5392  0 
> i2c_piix4              11482  0 
> mac_hid                 3645  0
>

(In reply to comment #0)
[...]
>  - turning on the systems netboot agent as pointed out by walterav on
> http://phoronix.com/forums/showthread.php?31961-Notes-on-Acer-Aspire-One-522
/page7

Can you attach a dmesg when this is done and clarify if this is a hard lockup
(no keyboard led, nothing) or a soft one (keyboard led ok, magic sysrq ok,
etc.) ?

Thanks.

-- 
Ueimor

Created attachment 72352 [details]
Dmesg log for Francois Romieu

IMHO This is hard lookup:
I was played a song on a bakground and tried to connect to WiFi network. During connection playing was stopped at all. 
There is no any kb leds in my netbook and i dont know what 'magic sysrq' means.

Thanks.

(In reply to comment #5)
[...] 
> There is no any kb leds in my netbook and i dont know what 'magic sysrq'
> means.

See Documentation/sysrq.txt. You can either 'sysctl -w kernel.sysrq = 1' or enable
it in /etc/sysctl.conf. If you can use it after the lockup, it may list the held locks for
instance. If it does not help - or it can't - it could help to enable the lock and mutex
related build config options of the kernel in the "Kernel Hacking" submenu, especially
the "Lock debugging: prove locking correctness" one.

-- 
Ueimor

I had tried do this and successfully enabled this kernel option. After lockup i didn`t reboot my PC via Alt+SysRq+B.

I didn't find any abnormal info from your log, can you please update your atl1c driver with the latest one ? we have added many patches since April,2012.
thanks !