Re: AIO/DIO lockup/crash

From: Jeff Moyer
Date: Wed Apr 30 2008 - 10:48:18 EST


Peter Zijlstra <peterz@xxxxxxxxxxxxx> writes:

> On Mon, 2008-04-28 at 09:08 -0700, Andrew Morton wrote:
>
>> erk, that's dio->bio_lock, isn't it?
>
> Yep.
>
>> That lock is super-simple and hasn't changed in quite some time. If there
>> has been major memory wreckage and we're simply grabbing at a "lock" in
>> random memory then I'd expect the bug to maninfest in different ways on
>> different runs?
>
> Looks like it.
>
>> I assume you have lots of runtime debugging options enabled.
>
> Not on this particular run. I'll start a -git run this evening with most
> of the debugging option enabled. It takes a few hours to reproduce, so I
> let it run over-night.

Peter, any update on this?

FWIW, I've been running the aio-dio-invalidate-failure test on a fedora
kernel (2.6.25-8.fc9.i686) for several days now without any problems.
However, I'm not sure I can reproduce the bugs at all. I'll revert to a
2.6.24 kernel and try.

Cheers,

Jeff
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/