Messages in this thread | | | Subject | Re: 2.6.9 rc2 freezing | From | Lee Revell <> | Date | Wed, 15 Sep 2004 13:49:16 -0400 |
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On Wed, 2004-09-15 at 12:58, Ricky Beam wrote: > On Wed, 15 Sep 2004, Jeff Garzik wrote: > >Lee Revell wrote: > >> Anyway, if you are running anything on your server that breaks under > >> PREEMPT, it will break anyway as soon as you add another processor. > > > >Incorrect. The spinlock behavior is very different. > > Indeed. Enable PREEMPT (my default for some time now) and the machine > will lockup after spewing pages of scheduling while atomic's. Disable > PREEMPT and the machine is stable again: >
Interesting. Still, this looks like a specific bug that needs fixing, it doesn't imply that preemption is a hack. For many workloads preemption is a necessity.
Lee
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