You probably want to try [email protected] for maximum exposure...
On Thu, Jan 05, 2012 at 01:18:09AM +0400, MR wrote:
> Hello.
>
> I have noticed a complete crash (forced switch to console and Alt-SysRq-B
> doesn't work) when I use ath9k driver for my WiFi card. The problem is that
> the crash occurs after a few hours of use, so blind bissecting doesn't look
> like a short-term plan.
>
> My card is (as lspci says):
>
> 03:00.0 Network controller: Atheros Communications Inc. AR9285 Wireless
> Network Adapter (PCI-Express) (rev 01)
> Subsystem: Device 1a3b:1089
> Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
> Stepping- SERR- FastB2B- DisINTx-
> Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
> <TAbort- <MAbort- >SERR- <PERR- INTx-
> Latency: 0, Cache Line Size: 64 bytes
> Interrupt: pin A routed to IRQ 17
> Region 0: Memory at d7400000 (64-bit, non-prefetchable) [size=64K]
>
> I use an Asus N53JN notebook, if that matters.
>
> I have photos of two instances of the crash. The backtrace goes as follows (I
> typed this in, so maybe there is a typo somewhere - I hope there is none,
> though):
>
> wq_worker_sleeping+0x10/0xa0
> __schedule+0x427/0x7b0
> ? call_rcu_sched+0x10/0x20
> schedule+0x3a/0x50
> do_exit+0x57c/0x840
> ? kmsg_dump+0x45/0xe0
> oops_end+0xa5/0xf0
> no_context+0xf2/0x270
> __bad_area_no_semaphore+0xe/0x10
> do_page_fault+0x2ba/0x450
> ? up+0x2d/0x50
> ? console_unlock+0x1df/0x250
> ? select_task_rq_fair+0x5be/0x970
> page_fault+0x25/0x30
> ? ath_update_survey_stats+0xb7/0x1c0 [ath9k]
> ath9k_config+0x115/0x780 [ath9k]
> ? queue_work+0x1a/0x20
> ? queue_delayed_work+0x25/0x30
> ? ieee80211_queue_delayed_work+0x46/0x60 [mac80211]
> ? ath9k_flush+0x155/0x1d0 [ath9k]
> ieee80211_hw_config+0xe2/0x160 [mac80211]
> ieee80211_scan_work+0x243/0x5c0 [mac80211]
> ? ieee80211_scan_rx+0x1c0/0x1c0 [mac80211]
> process_one_work+0x111/0x390
> worker_thread+0x162/0x340
> manage_workers.clone.26+0x240/0x240
> kthread+0x96/0xa0
> kernel_thread_helper+0x4/0x10
> ? kthread_worker_fn+0x190/0x190
> ? gs_change+0x13/0x13
>
>
>
>
> --
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> the body of a message to [email protected]
> More majordomo info at http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at http://www.tux.org/lkml/
>
--
John W. Linville Someday the world will need a hero, and you
[email protected] might be all we have. Be ready.
Hi John,
we will take a look at this.
i can later come up with few debug patches to narrow down the panic.
looks like a problem in ath_update_survey_stats(survey pointer). full
stack trace will be helpful
thanks.
On Thu, Jan 5, 2012 at 2:58 AM, John W. Linville <[email protected]> wrote:
> You probably want to try [email protected] for maximum exposure...
>
> On Thu, Jan 05, 2012 at 01:18:09AM +0400, MR wrote:
>> Hello.
>>
>> I have noticed a complete crash (forced switch to console and Alt-SysRq-B
>> doesn't work) when I use ath9k driver for my WiFi card. The problem is that
>> the crash occurs after a few hours of use, so blind bissecting doesn't look
>> like a short-term plan.
>>
>> My card is (as lspci says):
>>
>> 03:00.0 Network controller: Atheros Communications Inc. AR9285 Wireless
>> Network Adapter (PCI-Express) (rev 01)
>> ? ? ? ? Subsystem: Device 1a3b:1089
>> ? ? ? ? Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
>> Stepping- SERR- FastB2B- DisINTx-
>> ? ? ? ? Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
>> <TAbort- <MAbort- >SERR- <PERR- INTx-
>> ? ? ? ? Latency: 0, Cache Line Size: 64 bytes
>> ? ? ? ? Interrupt: pin A routed to IRQ 17
>> ? ? ? ? Region 0: Memory at d7400000 (64-bit, non-prefetchable) [size=64K]
>>
>> I use an Asus N53JN notebook, if that matters.
>>
>> I have photos of two instances of the crash. The backtrace goes as follows (I
>> typed this in, so maybe there is a typo somewhere - I hope there is none,
>> though):
>>
>> wq_worker_sleeping+0x10/0xa0
>> __schedule+0x427/0x7b0
>> ? call_rcu_sched+0x10/0x20
>> schedule+0x3a/0x50
>> do_exit+0x57c/0x840
>> ? kmsg_dump+0x45/0xe0
>> oops_end+0xa5/0xf0
>> no_context+0xf2/0x270
>> __bad_area_no_semaphore+0xe/0x10
>> do_page_fault+0x2ba/0x450
>> ? up+0x2d/0x50
>> ? console_unlock+0x1df/0x250
>> ? select_task_rq_fair+0x5be/0x970
>> page_fault+0x25/0x30
>> ? ath_update_survey_stats+0xb7/0x1c0 [ath9k]
>> ath9k_config+0x115/0x780 [ath9k]
>> ? queue_work+0x1a/0x20
>> ? queue_delayed_work+0x25/0x30
>> ? ieee80211_queue_delayed_work+0x46/0x60 [mac80211]
>> ? ath9k_flush+0x155/0x1d0 [ath9k]
>> ieee80211_hw_config+0xe2/0x160 [mac80211]
>> ieee80211_scan_work+0x243/0x5c0 [mac80211]
>> ? ieee80211_scan_rx+0x1c0/0x1c0 [mac80211]
>> process_one_work+0x111/0x390
>> worker_thread+0x162/0x340
>> manage_workers.clone.26+0x240/0x240
>> kthread+0x96/0xa0
>> kernel_thread_helper+0x4/0x10
>> ? kthread_worker_fn+0x190/0x190
>> ? gs_change+0x13/0x13
>>
>>
>>
>>
>> --
>> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
>> the body of a message to [email protected]
>> More majordomo info at ?http://vger.kernel.org/majordomo-info.html
>> Please read the FAQ at ?http://www.tux.org/lkml/
>>
>
> --
> John W. Linville ? ? ? ? ? ? ? ?Someday the world will need a hero, and you
> [email protected] ? ? ? ? ? ? ? ? ?might be all we have. ?Be ready.
> --
> To unsubscribe from this list: send the line "unsubscribe linux-wireless" in
> the body of a message to [email protected]
> More majordomo info at ?http://vger.kernel.org/majordomo-info.html
--
shafi