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    SubjectRe: 2.6.16-git4: kernel BUG at block/ll_rw_blk.c:3497
    On Wed, Mar 29, 2006 at 10:16:43AM +0200, Jens Axboe wrote:
    > triggering. What sort of testing were you running, exactly?
    >
    > Al, any ideas?

    I really wonder why it's the call from do_exit() that triggers it.
    The thing is, we get off-by-exactly-one here and all previous callers
    of that puppy would be elsewhere (cfq, mostly).

    IOW, we get exactly one extra call of put_io_context() _and_ have it
    happen before do_exit() (i.e. from normal IO paths). Interesting...

    Is there any way to reproduce it without too much PITA?
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