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

[Ingo Molnar]

* Ingo Molnar <mingo@xxxxxxx> 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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