On Fri, 03 Jun 2011 11:01:37 +0400, Michael Tokarev <[email protected]> wrote:
> Something like this? (run-tested but I haven't seen the problem
> in this place)
>
> commit 2e8532e0a9ee1d25b279ac78ee8ce31701e2aa15
> Author: Michael Tokarev <[email protected]>
> Date: Fri Jun 3 10:50:49 2011 +0400
>
> block: add proper state guards to elv_queue_empty()
Yes, that's exactly what I mean.
> Like in 0a58e077eb600d1efd7e54ad9926a75a39d7f8ae (backported to
> stable 2.6.38 as 0a58e077eb600d1efd7e54ad9926a75a39d7f8ae) which
> fixes this for __elv_next_request(), as reported by Atsushi Nemoto,
> elv_queue_empty() also needs to check for dead queue condition
> before touchin elevator.
>
> elv_queue_empty() has been removed upstream so this is only applicable
> for versions prior to 2.6.39, including 2.6.32-longterm.
Yes, Wolfgang Walter reported same crash on 2.6.32.40 so
2.6.32-longterm would need this fix.
I suppose all stable branches which have backport of 86cbfb56 ("put
stricter guards on queue dead checks") need this fix.
---
Atsushi Nemoto
_______________________________________________
stable mailing list
[email protected]
http://linux.kernel.org/mailman/listinfo/stable
