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From: Michael Breuer on 30 Jan 2010 15:10
On 1/30/2010 2:57 PM, Rafael J. Wysocki wrote:
> On Saturday 30 January 2010, Michael Breuer wrote:
>
>> On 1/10/2010 4:47 PM, Michael Breuer wrote:
>>
>>> System crashed (watchdog reset).
>>>
>>> Was doing a raid rebuild at the time (raid6).
>>>
>>> I typed, 'yumdownloader --source virtlib' ... system froze, then
>>> rebooted on the watchdog reset.
>>>
>>> I've attached the log extract from the event as well as dmesg.
>>>
>>>
>>>
>> Hit this again - system doesn't crash now - just get the hung task
>> warning (log extract attached). System seems to keep running (albeit the
>> rebuild is incredibly slow on 2.6.33 rc5 - approx 6500K/sec vs. about
>> 80,000K/sec on 2.6.32.4.
>>
>> Looks like it may be triggered by disk io during the rebuild. This time
>> I had typed, "sync." "sync" hung for a long while but did eventually
>> complete.
>>
> Is this the bug tracked as http://bugzilla.kernel.org/show_bug.cgi?id=15125 ?
>
> Rafael
>
Yes - although the behavior is different on rc5 vs. rc3. I think it's
the same.
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