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    SubjectRe: [BUG][Resend] 2.6.12-rc3-mm3: Kernel BUG at "mm/slab.c":1219
    On Mon, May 09 2005, Andi Kleen wrote:
    > On Mon, May 09, 2005 at 10:39:37PM +0200, Rafael J. Wysocki wrote:
    > > Hi,
    > >
    > > I get this from 2.6.12-rc3-mm3 on a UP AMD64 box (Asus L5D), 100% of the time:
    >
    > Probably a generic bug. Block layer is passing some slab flag slab
    > doesn't like.

    Some slab change, perhaps? There's nothing special about the init_bio()
    slab call:

    bio_slab = kmem_cache_create("bio", sizeof(struct bio), 0,
    SLAB_HWCACHE_ALIGN|SLAB_PANIC, NULL, NULL);


    Hmm, this looks strange. That bug happens if:

    if ((!name) ||
    in_interrupt() ||
    (size < BYTES_PER_WORD) ||
    (size > (1<<MAX_OBJ_ORDER)*PAGE_SIZE) ||
    (dtor && !ctor)) {
    printk(KERN_ERR "%s: Early error in slab %s\n",
    __FUNCTION__, name);
    BUG();
    }

    It must be in_interrupt() triggering, perhaps something change in the
    boot sequence?

    --
    Jens Axboe

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