Messages in this thread | | | Subject | Re: frequent slab corruption (since a long time) | From | Andi Kleen <> | Date | 02 Aug 2006 05:37:28 +0200 |
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Dave Jones <davej@redhat.com> 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.
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