Dave Jones <[email protected]> writes:
> Every so often, I see a slab corruption bug reported against
> the Fedora kernels (going back as far as 2.6.11), and it's
> still plagueing us.
>
> It seems to have turned up in a number of different scenarios,
> which makes it all the more complicated, but the footprint is
> always the same. We write ffffffff00000000 to freed memory.
DEBUG_PAGEALLOC + a small slab patch to force the 2k slab to be
only a single object per page (so that a kfree() immediately
triggers an unmap) would catch it I guess.
-Andi
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