Messages in this thread | | | Date | Fri, 24 Jan 2003 08:50:01 +0100 | From | Jens Axboe <> | Subject | Re: [BUG] BUG_ON in I/O scheduler, bugme # 288 |
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On Thu, Jan 23 2003, Dave Olien wrote: > > Jens, Andrew > > The group here doing dbt2 workload measurements have hit a couple of > problems APPARENTLY in the block I/O scheduler when doing write-intensive > raw disk I/O through a DAC960 extremeraid 2000 controller. > This wasn't a problem in 2.5.49. It has appeared since then. > > I've filed a bug on the OSDL bugme database. You can read it at: > > http://bugme.osdl.org/show_bug.cgi?id=288 > > I've also put a more complete report in my web site: > > http://www.osdl.org/archive/dmo/deadline_bugon.
A request got on the fifo, but not in the sort tree. This is most likely an alias. Ah yes I see it, it can happen when two requests are merged. I'll be back with a fix for this soon.
-- Jens Axboe
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