Messages in this thread | | | Date | Wed, 27 Oct 2010 16:43:17 +0200 | From | Tejun Heo <> | Subject | Re: [PATCH] x86-32: Allocate irq stacks seperate from percpu area |
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On 10/27/2010 04:39 PM, Eric Dumazet wrote: > Le mercredi 27 octobre 2010 à 16:24 +0200, Eric Dumazet a écrit : >> Le mercredi 27 octobre 2010 à 16:00 +0200, Tejun Heo a écrit : >> >>> Heh, interesting table. What does the same code say on 64bit? Is it >>> the same? >>> >> >> Yes this is the same > > Oops sorry :!) > > On 64bit kernel, the 16 'possible but not online' cpus are not on node > 0, but balanced between two nodes.
Ah, okay, that explains it. So, your NUMA table is screwed up. It would be interesting to dig down where the difference between 32 and 64bit comes from. Maybe it's coming from differences in our init code rather than from BIOS?
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