Messages in this thread | | | Date | Mon, 26 Sep 2016 15:40:34 +0200 | From | Borislav Petkov <> | Subject | Re: [x86-tip] strange nr_cpus= boot regression |
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On Mon, Sep 26, 2016 at 02:39:53PM +0200, Mike Galbraith wrote: > On Mon, 2016-09-26 at 14:29 +0200, Mike Galbraith wrote: > > > Checkout timers/core, and merge nodeid, and all is well. I'm currently > > bisecting the result against HEAD.. which will likely be about as > > useful as the last five bisections, but ya never know. (ok git, finger > > somebody already [hotplug] and call it a day) > > That came out backward, though it shouldn't matter. I checked out > nodeid, and merged timers/core into it, which works fine.
Ok, I can confirm the same observation without *any* command line options diminishing the number of CPUs. I'm booting with halved CPU numbers. Here's a coarse bisect of the merge commits of tip/master:
... e47f2e50ead9 Merge tag 'configfs-for-4.8-2' of git://git.infradead.org/users/hch/configfs d24efa23e93c Merge branch 'x86/apic'
<--- v4.8-rc7-714-gcdcef608a13d: bad
cdcef608a13d Merge branch 'linus' 450df5cb5cad Merge branch 'x86/vdso' 2f2c2f35ddbf Merge branch 'x86/timers' 782795482a9e Merge branch 'x86/platform' 1200484cdb51 Merge branch 'x86/cleanups' b1591e618894 Merge branch 'x86/boot' 5b8b44cc2d19 Merge branch 'x86/asm'
<--- v4.8-rc7-496-g20eefd15d70: bad
20eefd15d70f Merge branch 'x86/apic'
<--- v4.8-rc7-475-gb468c89ee756: OK
b468c89ee756 Merge branch 'timers/core'
<--- v4.8-rc7-454-g4be273986460: OK
4be273986460 Merge branch 'smp/hotplug'
<--- v4.8-rc7-405-g1eaa05b665b0: OK
1eaa05b665b0 Merge branch 'sched/core' b820db731394 Merge branch 'ras/core' 689d1113c7ba Merge branch 'perf/core' f93add128c73 Merge branch 'mm/pkeys' f0be67cb6c64 Merge branch 'locking/urgent' ab5f266b0b55 Merge branch 'locking/core' c69a1dec2a36 Merge branch 'irq/core' 87671cd5fb60 Merge branch 'efi/core' 51e5767069c8 Merge branch 'core/smp' 85202a2289d2 Merge branch 'core/rcu' ...
-- Regards/Gruss, Boris.
ECO tip #101: Trim your mails when you reply.
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