linux-kernel - Re: latest -git: suspend: unable to handle kernel paging request (was Re: no_console

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Date:	Thu, 21 Aug 2008 21:37:52 +0200
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	"Vegard Nossum" <vegard.nossum@...il.com>
Cc:	"Linux Kernel Mailing List" <linux-kernel@...r.kernel.org>,
	"Andrew Morton" <akpm@...ux-foundation.org>
Subject: Re: latest -git: suspend: unable to handle kernel paging request (was Re: no_console_suspend doesn't work?)

On Thursday, 21 of August 2008, Vegard Nossum wrote:
> On Thu, Aug 21, 2008 at 9:13 PM, Rafael J. Wysocki <rjw@...k.pl> wrote:
> >> ...followed by the "unable to handle kernel paging request" as in
> >> previous e-mail. The numbers 00100104 and 00200200 seem to appear all
> >> the time.
> >>
> >> At least it is 100% reproducible now and with nice oopses too :-)
> >
> > Hm, slab corruption, it seems.
> >
> > Do you use SLAB or SLUB?
> 
> SLUB, with all possible debugging:
> 
> CONFIG_SLUB_DEBUG=y
> # CONFIG_SLAB is not set
> CONFIG_SLUB=y
> # CONFIG_SLOB is not set
> CONFIG_SLABINFO=y
> CONFIG_SLUB_DEBUG_ON=y
> CONFIG_SLUB_STATS=y
> 
> (Thanks for helping out.)

(You're welcome.)

Can you switch to SLAB and retest?  I don't really think SLUB is the issue
here, but SLAB may give us additional information.

Thanks,
Rafael
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