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    SubjectRe: Two 2.6.13-rc1 kernel crashes
    On Mon, Jul 04 2005, Martin Mokrejs wrote:
    > Hi,
    > I use on i686 architecture Gentoo linux with XFS filesystem.
    > Recently it happened to me 3 time that the machine locked,
    > although at least once sys-rq+b worked. Here is the log
    > from remote console. I don't remeber having such problems
    > with 2.6.12-rc6-git2, which was my previous testing kernel.
    > The problems appear under heavy load when I compile/install
    > some packages and maybe it's just a bad coincidence or not,
    > when I move my usb mouse in fvwm2 environment. The machine
    > locks.

    You need this fix from Hugh.

    --- 2.6.13-rc1/drivers/block/ll_rw_blk.c 2005-06-29 11:54:08.000000000 +0100
    +++ linux/drivers/block/ll_rw_blk.c 2005-06-29 14:41:04.000000000 +0100
    @@ -1917,10 +1917,9 @@ get_rq:
    * limit of requests, otherwise we could have thousands of requests
    * allocated with any setting of ->nr_requests
    */
    - if (rl->count[rw] >= (3 * q->nr_requests / 2)) {
    - spin_unlock_irq(q->queue_lock);
    + if (rl->count[rw] >= (3 * q->nr_requests / 2))
    goto out;
    - }
    +

    --
    Jens Axboe

    -
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