On Sat, May 27 2000, Steve Dodd wrote:
> > To follow up myself: with plugging disabled, it works for me (tm);
> > otherwise it breaks very fast.
>
> Some people seem to be seeing other problems though; a first glance suggests
> it might be free request starvation / deadlock.
Disabling plugging never cured the problem here. But with the separate
queue request free lists patch that I posted to this list some time ago,
all problems were gone. As Steve indicates, this also suggests request
starvation.
The traces I saw (this is about a month ago, so I might be a little
off) had loop waking kflushd, which itself was deadlocked in
get_request_wait.
-- * Jens Axboe <axboe@suse.de> * Linux CD/DVD-ROM, SuSE Labs * http://kernel.dk- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.tux.org/lkml/
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