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SubjectRe: [origin tree SLAB corruption #2] BUG kmalloc-64: Poison overwritten, INFO: Allocated in bdi_alloc_work+0x2b/0x100 age=175 cpu=1 pid=3514

* Ingo Molnar <mingo@elte.hu> wrote:

> > trying to pull in:
> >
> > git://git.kernel.dk/linux-2.6-block.git writeback
> >
> > and see if it reproduces there? That path has been cleaned up
> > considerably there.
>
> I gave it a test-pull - and the bug does not trigger anymore.
>
> Note, that may not mean much: your tree is based on a fresh upstream
> tree so it pulled a lot of new stuff into -tip that i have yet to
> test/validate. It also changed the kernel image size/layout
> considerably and this bug seems to be a very narrow to hit race of
> sorts.

Btw., is there anything in your cleanups that could explain this bug?
Some list handling bug? A double free? Uninitialized memory? Race
between block IRQs and process context?

Ingo


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