Re: raid5 hang on get_active_stripe

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On Wed, 31 May 2006, Neil Brown wrote:

> On Tuesday May 30, dean@xxxxxxxxxx wrote:
> > On Tue, 30 May 2006, Neil Brown wrote:
> > 
> > > Could you try this patch please?  On top of the rest.
> > > And if it doesn't fail in a couple of days, tell me how regularly the
> > > message 
> > >    kblockd_schedule_work failed
> > > gets printed.
> > 
> > i'm running this patch now ... and just after reboot, no freeze yet, i've 
> > already seen a handful of these:
> > 
> > May 30 17:05:09 localhost kernel: kblockd_schedule_work failed
> > May 30 17:05:59 localhost kernel: kblockd_schedule_work failed
> > May 30 17:08:16 localhost kernel: kblockd_schedule_work failed
> > May 30 17:10:51 localhost kernel: kblockd_schedule_work failed
> > May 30 17:11:51 localhost kernel: kblockd_schedule_work failed
> > May 30 17:12:46 localhost kernel: kblockd_schedule_work failed
> > May 30 17:14:14 localhost kernel: kblockd_schedule_work failed
> 
> 1 every minute or so.  That's probably more than I would have
> expected, but strongly lends evidence to the theory that this is the
> problem.

actually i think the rate is higher... i'm not sure why, but klogd doesn't 
seem to keep up with it:

root@neemlark:~# grep -c kblockd_schedule_work /var/log/messages
31
root@neemlark:~# dmesg | grep -c kblockd_schedule_work
8192

i don't have CONFIG_PRINTK_TIME=y ... so i can't read timestamps from 
dmesg.

but cool!  if the dmesg spam seems to be a problem i can just comment it 
out of the patch...

i'll let you know if it freezes again.

thanks
-dean
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