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    SubjectRe: [PATCH 05/10] block: remove per-queue plugging
    On Tue, Mar 08 2011 at  3:27pm -0500,
    Jens Axboe <jaxboe@fusionio.com> wrote:

    > On 2011-03-08 21:21, Mike Snitzer wrote:
    > > On Tue, Mar 08 2011 at 7:16am -0500,
    > > Jens Axboe <jaxboe@fusionio.com> wrote:
    > >
    > >> On 2011-03-03 23:13, Mike Snitzer wrote:
    > >>> I'm now hitting a lockdep issue, while running a 'for-2.6.39/stack-plug'
    > >>> kernel, when I try an fsync heavy workload to a request-based mpath
    > >>> device (the kernel ultimately goes down in flames, I've yet to look at
    > >>> the crashdump I took)
    > >>
    > >> Mike, can you re-run with the current stack-plug branch? I've fixed the
    > >> !CONFIG_BLOCK and rebase issues, and also added a change for this flush
    > >> on schedule event. It's run outside of the runqueue lock now, so
    > >> hopefully that should solve this one.
    > >
    > > Works for me, thanks.
    >
    > Super, thanks! Out of curiousity, did you use dm/md?

    Yes, I've been using a request-based DM multipath device.


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