On Wed, Jul 01, 2009 at 09:22:26AM +0200, Andi Kleen wrote:

Agreed.

I suspect the reordering of the wake queue tests might makes a difference, but
in this case to ensure they are always tested in the proper order by
the compiler would need more smp_rmb()s

I just looked up the original bug report and it's against RHEL4
which is a 2.6.9 kernel.  Jiri, have we reproduced this on a more
recent kernel?

Thanks,
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