Re: Slab corruption in 2.6.16-rc5-mm2

[Jesper Juhl]

On 3/6/06, Dave Jones <davej@xxxxxxxxxx> wrote:
> On Mon, Mar 06, 2006 at 10:41:07PM +0100, Jesper Juhl wrote:
>
>  > CONFIG_DEBUG_SLAB
>  > CONFIG_PAGE_OWNER
>  > CONFIG_DEBUG_VM
>  > CONFIG_DEBUG_PAGEALLOC
>  >
>  > The resulting kernel boots and runs just fine (no Oops) and leaves
>  > nothing in dmesg.
>  > So, without the debugging options it appears to the user that
>  > everything is OK - nasty.
>
> DEBUG_PAGEALLOC in particular is *fantastic* at making bugs hide.
> I've lost many an hour trying to pin bugs down due to that.
>

Well, in this case, turning the option *off* hides the bug ;)

--
Jesper Juhl <jesper.juhl@xxxxxxxxx>
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