Messages in this thread | | | Subject | Re: [PATCH] fix workqueue oops during cpu offline | From | Benjamin Herrenschmidt <> | Date | Thu, 05 Jan 2006 17:03:08 +1100 |
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On Thu, 2006-01-05 at 15:58 +1000, Nigel Cunningham wrote: > Hi. > > On Thursday 05 January 2006 14:58, Nathan Lynch wrote: > > With 2.6.15, powerpc systems oops when cpu 0 is offlined. This is a > > regression from 2.6.14, caused by commit id > > bce61dd49d6ba7799be2de17c772e4c701558f14 ("Fix hardcoded cpu=0 in > > workqueue for per_cpu_ptr() calls"). > > So it's valid on ppc for cpu 0 to be taken offline? IIRC, trying that on my P4 > a while back did nothing. I think you'll find other places that assume that > cpu 0 is always up (swsusp? ... I should check suspend2).
It's bogus, cpu0 can be put offline.
Ben.
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