Re: Regressionhung task during raid rebuild 2.6.33 rc5 was: Re: 2.6.33RC3 hung task - jbd2/dm-1-8 (during raid rebuild)
From: Rafael J. Wysocki
Date: Sat Jan 30 2010 - 14:57:13 EST
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 18.104.22.168.
> 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
Is this the bug tracked as http://bugzilla.kernel.org/show_bug.cgi?id=15125 ?
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