linux-kernel - percpu allocation failures in kvm

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Date:	Thu, 13 Dec 2012 21:43:23 -0800
From:	Andy Lutomirski <luto@...capital.net>
To:	linux-kernel@...r.kernel.org, kvm list <kvm@...r.kernel.org>
Subject: percpu allocation failures in kvm

On 3.7.0 + irrelevant patches, I get this on boot.  I've seen it on
and off on earlier kernels, I think (although I'm not currently
getting it on 3.5).

[   10.230054] PERCPU: allocation failed, size=304 align=32, alloc
from reserved chunk failed
[   10.230059] Pid: 1026, comm: modprobe Tainted: G        W    3.7.0-ama+ #5
[   10.230060] Call Trace:
[   10.230070]  [<ffffffff81129efb>] pcpu_alloc+0x9db/0xa40
[   10.230074]  [<ffffffff810a81ad>] ? find_symbol_in_section+0x4d/0x140
[   10.230077]  [<ffffffff810a8160>] ? finished_loading+0x50/0x50
[   10.230080]  [<ffffffff810a8af0>] ? each_symbol_section+0x30/0x70
[   10.230083]  [<ffffffff810a8b61>] ? find_symbol+0x31/0x60
[   10.230086]  [<ffffffff8112a1f3>] __alloc_reserved_percpu+0x13/0x20
[   10.230089]  [<ffffffff810ab48d>] load_module+0x3ed/0x1b50
[   10.230093]  [<ffffffff81075c3b>] ? __srcu_read_unlock+0x4b/0x70

--Andy
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