Re: 2.6.22-rc7: known regressions with patches v2

From: David Woodhouse
Date: Sat Jul 07 2007 - 12:22:42 EST


On Sat, 2007-07-07 at 18:06 +0200, Michal Piotrowski wrote:
> FBDEV
>
> Subject : SLUB kmalloc-32768: Poison check failed@0xc1e20000
> slab 0xc04de400
> References : http://lkml.org/lkml/2007/7/4/305
> Last known good : ?
> Submitter : David Woodhouse <dwmw2@xxxxxxxxxxxxx>
> Caused-By : ?
> Handled-By : ?
> Status : unknown

If you're looking for someone to blame, consider the fact that this has
gone away now I've switched back to slab. :)

> Bluetooth
>
> Subject : problem with a bluetooth mouse
> References : http://lkml.org/lkml/2007/7/4/321
> Last known good : ?
> Submitter : David Woodhouse <dwmw2@xxxxxxxxxxxxx>
> Caused-By : ?
> Handled-By : Jiri Kosina <jkosina@xxxxxxx>
> Dmitry Torokhov <dtor@xxxxxxxxxxxxx>
> Patch : http://lkml.org/lkml/2007/7/6/391
> Status : patch available

That patch was a straw man for Marcel to comment on, not necessarily a
real fix. I don't know the code that well, and naÃvely reordering bits
of it could have introduced another race which I just haven't triggered
yet.

Strictly speaking, it wasn't a 2.6.22 regression either -- I actually
saw it for the first time in 2.6.21-rc iirc.

Thanks for tracking these, btw. It's very useful.

--
dwmw2

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