Re: [BUG] 2.5.73 Scheduling while atomic with taskfile IO and high

Mel Gorman (mel@csn.ul.ie)
Tue, 1 Jul 2003 01:32:38 +0100 (IST)


On Mon, 30 Jun 2003, Paul Larson wrote:

> This sounds similar to what I was seeing with bug #800, only I don't
> think I had taskfile IO enabled. Another person I talked to had some
> success by enabling PIIX I think, but that did not work for me. The
> only workaround that worked for me was to disable highmem support.

I'm pretty sure we're looking at the same bug, at least they are
remarkably similar for a co-incidence. If you have the time, it might be
worth checking if commenting out inc_preempt_count() and
dec_preempt_count() from kmap_atomic() and kunmap_atomic() masks the bug
for you. It's not a workaround but it might help narrow down where things
are going wrong

-- 
Mel Gorman
MSc Student, University of Limerick
http://www.csn.ul.ie/~mel
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