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SubjectRe: [BUG] BUG_ON in I/O scheduler, bugme # 288
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:
> I've also put a more complete report in my web site:

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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