Re: Slab corruption in 2.6.16-rc5-mm2

[Jesper Juhl]

On 3/6/06, Jens Axboe <axboe@xxxxxxx> wrote:
[...snip...]
>
> I don't see how it could be, honestly, we would gladly oops in locally
> close places if that was the case. If you disable slab debug/poison, do
> you get a nice NULL pointer dereference instead? There have been some
> reports on a NULL queue for sr devices as of lately, I wonder if some
> SCSI change recently was broken.
>

I just build and booted a plain 2.6.16-rc5-mm2 with the same config
I've used previously, but with the following options disabled :

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.

--
Jesper Juhl <jesper.juhl@xxxxxxxxx>
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