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    SubjectRe: [bug, netconsole, SLUB] BUG skbuff_head_cache: Poison overwritten

    * Evgeniy Polyakov <johnpol@2ka.mipt.ru> wrote:

    > It could be an interesting kmemcheck extension to catch not only
    > non-initialized memory, but also writes into just freed one, but not
    > yet returned by allocator to the next user.

    hm, i think kmemcheck does that mostly already. If not then I think
    kmemcheck should just turn off all buffering that might happen on the
    SLUB level (if it doesnt do it already). I.e. a kfree()d buffer should
    be marked as uninitialized immediately.

    Ingo


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