[lkml]   [2006]   [May]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
    SubjectRe: 2.6.17-rc4-mm1
    Hi Andrew

    It seems latest kernels have a problem in kmem_cache_destroy()

    On a dual opteron machine (NUMA), its quite easy do trigger the bug :
    doing a oprofile session like :

    opcontrol --setup --event=CPU_CLK_UNHALTED:100000
    opcontrol --dump
    opcontrol --deinit <<<-- Triggers the bug

    slab error in kmem_cache_destroy(): cache `dcookie_cache': Can't free
    all objects

    Call Trace: <ffffffff80278aa4>{kmem_cache_destroy+212}
    <ffffffff8027cee2>{__fput+98} <ffffffff80279ecd>{filp_close+93}

    # grep dcookie_cache /proc/slabinfo
    dcookie_cache 0 0 32 101 1 : tunables 120 60
    8 : slabdata 0 0 0

    This problem is annoying, because in the oprofile case, we must reboot
    the machine to be able to start a new profile session.


    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to
    More majordomo info at
    Please read the FAQ at

     \ /
      Last update: 2006-05-15 12:12    [W:0.044 / U:17.092 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site