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    SubjectRe: 2.6.15-mm2

    an additional patch you could apply is the one below - but it doubt it
    makes a difference.

    Ingo

    --
    add might_sleep() to the mutex_lock slowpath.

    Signed-off-by: Ingo Molnar <mingo@elte.hu>

    ----

    kernel/mutex.c | 1 +
    1 files changed, 1 insertion(+)

    Index: linux/kernel/mutex.c
    ===================================================================
    --- linux.orig/kernel/mutex.c
    +++ linux/kernel/mutex.c
    @@ -133,6 +133,7 @@ __mutex_lock_common(struct mutex *lock,
    struct mutex_waiter waiter;
    unsigned int old_val;

    + might_sleep();
    debug_mutex_init_waiter(&waiter);

    spin_lock_mutex(&lock->wait_lock);
    -
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