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Date: Thu, 11 Oct 2012 15:28:31 +0200 From: Mike Galbraith <efault@....de> To: LKML <linux-kernel@...r.kernel.org> Cc: Josh Triplett <josh@...htriplett.org>, Kay Sievers <kay@...y.org>, Avi Kivity <avi@...hat.com> Subject: KVM: (bisected) e9bda3b triggers PERCPU allocation failures during module load Greetings, Putting 2.6.0 on a 40 core Westmere-EX box, hit the below. Finally got it bisected to KVM: VMX: Auto-load on CPUs with VMX. Revert e9bda3b, box boots clean. modprobe kvm_intel, no problem either. This happens on at least two boxen with the attached or similar (other box was 2.6.1-rt1, so only fairly similar) config. monteverdi:/abuild/mike/linux-2.6/:[0]# grep PERCPU dmesg.bad [ 0.000000] PERCPU: Embedded 27 pages/cpu @ffff88047f800000 s80704 r8192 d21696 u262144 [ 31.483133] PERCPU: allocation failed, size=304 align=32, alloc from reserved chunk failed [ 31.483203] PERCPU: allocation failed, size=304 align=32, alloc from reserved chunk failed [ 31.483235] PERCPU: allocation failed, size=304 align=32, alloc from reserved chunk failed [ 31.483242] PERCPU: allocation failed, size=304 align=32, alloc from reserved chunk failed [ 31.483245] PERCPU: allocation failed, size=304 align=32, alloc from reserved chunk failed [ 31.483259] PERCPU: allocation failed, size=304 align=32, alloc from reserved chunk failed [ 31.483269] PERCPU: allocation failed, size=304 align=32, alloc from reserved chunk failed [ 31.483279] PERCPU: allocation failed, size=304 align=32, alloc from reserved chunk failed [ 31.483318] PERCPU: allocation failed, size=304 align=32, alloc from reserved chunk failed [ 31.483323] PERCPU: allocation failed, size=304 align=32, alloc from reserved chunk failed [ 31.483338] PERCPU: allocation failed, size=304 align=32, alloc from reserved chunk failed [ 31.483341] PERCPU: allocation failed, size=304 align=32, alloc from reserved chunk failed [ 31.483348] PERCPU: allocation failed, size=304 align=32, alloc from reserved chunk failed [ 31.483351] PERCPU: allocation failed, size=304 align=32, alloc from reserved chunk failed [ 31.483371] PERCPU: allocation failed, size=304 align=32, alloc from reserved chunk failed [ 31.483378] PERCPU: allocation failed, size=304 align=32, alloc from reserved chunk failed [ 31.483390] PERCPU: allocation failed, size=304 align=32, alloc from reserved chunk failed [ 31.483395] PERCPU: allocation failed, size=304 align=32, alloc from reserved chunk failed [ 31.483400] PERCPU: allocation failed, size=304 align=32, alloc from reserved chunk failed [ 31.483415] PERCPU: allocation failed, size=304 align=32, alloc from reserved chunk failed [ 31.483420] PERCPU: allocation failed, size=304 align=32, alloc from reserved chunk failed [ 31.483428] PERCPU: allocation failed, size=304 align=32, alloc from reserved chunk failed [ 31.483469] PERCPU: allocation failed, size=304 align=32, alloc from reserved chunk failed [ 31.483471] PERCPU: allocation failed, size=304 align=32, alloc from reserved chunk failed [ 31.483480] PERCPU: allocation failed, size=304 align=32, alloc from reserved chunk failed [ 31.483488] PERCPU: allocation failed, size=304 align=32, alloc from reserved chunk failed [ 31.483494] PERCPU: allocation failed, size=304 align=32, alloc from reserved chunk failed [ 31.483498] PERCPU: allocation failed, size=304 align=32, alloc from reserved chunk failed [ 31.483521] PERCPU: allocation failed, size=304 align=32, alloc from reserved chunk failed [ 31.483534] PERCPU: allocation failed, size=304 align=32, alloc from reserved chunk failed [ 31.483537] PERCPU: allocation failed, size=304 align=32, alloc from reserved chunk failed [ 31.483549] PERCPU: allocation failed, size=304 align=32, alloc from reserved chunk failed [ 31.483553] PERCPU: allocation failed, size=304 align=32, alloc from reserved chunk failed [ 31.483728] PERCPU: allocation failed, size=304 align=32, alloc from reserved chunk failed [ 31.483733] PERCPU: allocation failed, size=304 align=32, alloc from reserved chunk failed [ 31.483735] PERCPU: allocation failed, size=304 align=32, alloc from reserved chunk failed [ 31.483742] PERCPU: allocation failed, size=304 align=32, alloc from reserved chunk failed [ 31.483745] PERCPU: allocation failed, size=304 align=32, alloc from reserved chunk failed [ 31.483747] PERCPU: allocation failed, size=304 align=32, alloc from reserved chunk failed [ 31.483772] PERCPU: allocation failed, size=304 align=32, alloc from reserved chunk failed [ 31.483793] PERCPU: allocation failed, size=304 align=32, alloc from reserved chunk failed [ 31.483862] PERCPU: allocation failed, size=304 align=32, alloc from reserved chunk failed [ 31.483883] PERCPU: allocation failed, size=304 align=32, alloc from reserved chunk failed [ 31.483912] PERCPU: allocation failed, size=304 align=32, alloc from reserved chunk failed [ 31.483919] PERCPU: allocation failed, size=304 align=32, alloc from reserved chunk failed [ 31.483922] PERCPU: allocation failed, size=304 align=32, alloc from reserved chunk failed [ 31.483927] PERCPU: allocation failed, size=304 align=32, alloc from reserved chunk failed [ 31.483943] PERCPU: allocation failed, size=304 align=32, alloc from reserved chunk failed [ 31.483973] PERCPU: allocation failed, size=304 align=32, alloc from reserved chunk failed [ 31.483976] PERCPU: allocation failed, size=304 align=32, alloc from reserved chunk failed [ 31.483988] PERCPU: allocation failed, size=304 align=32, alloc from reserved chunk failed [ 31.483993] PERCPU: allocation failed, size=304 align=32, alloc from reserved chunk failed [ 31.484009] PERCPU: allocation failed, size=304 align=32, alloc from reserved chunk failed [ 31.484023] PERCPU: allocation failed, size=304 align=32, alloc from reserved chunk failed [ 31.486769] PERCPU: limit reached, disable warning Download attachment "config.gz" of type "application/x-gzip" (20591 bytes) Download attachment "dmesg.bad.gz" of type "application/x-gzip" (32725 bytes)
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