Date: Tue, 30 May 2000 23:30:01 +0200
From: Jens Axboe <axboe@suse.de>
It has been updated to account elevator segments etc, but apparently
it misses one here or there. I took a look at this when someone else
reported it a couple of weeks back, but didn't find anything
suspicious. DAC960 probably takes a reques off the list somewhere
that I missed, or vice versa...
Something strange must be going on... If I avoid using the special DAC960
merging functions someone wrote, I still see this problem happening when I run
mke2fs. The DAC960 driver only dequeues requests in one place and the
io_request_lock is always held, so I'm suspicious that the merging code itself
may have a bug that's only apparent on devices with large gueues.
Leonard
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