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    SubjectRe: [PATCH 2.6.18-rc4 00/10] Kernel memory leak detector 0.9
    On 13/08/06, Michal Piotrowski <> wrote:
    > It's kmemleak 0.9 issue. I have tested kmemleak 0.8 on 2.6.18-rc1and
    > 2.6.18-rc2. I haven't seen this before.

    it looks like it was caused by commit
    fc818301a8a39fedd7f0a71f878f29130c72193d where free_block() now calls
    slab_destroy() with l3->list_lock held.

    The prio_tree use (which doesn't alloc memory) instead of the
    radix_tree is about 4 times slower when scanning the memory and I
    don't think I'll use it.

    It leaves me with the options of either implementing my own memory
    allocator based on pages (including a simple hash table instead of
    radix tree) or fix the locking in kmemleak so that memory allocations
    happen without memleak_lock held. The latter is a bit complicated as
    well since any slab allocation causes a re-entrance into kmemleak.

    Any other suggestions?


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      Last update: 2006-08-17 15:07    [W:0.019 / U:9.428 seconds]
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