linux-kernel - Re: WARNING: at arch/x86_64/kernel/smp.c:379 smp_call_function

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Message-ID: <6bffcb0e0708100504n7fbafb5bt6a35165277dc767a@mail.gmail.com>
Date:	Fri, 10 Aug 2007 14:04:33 +0200
From:	"Michal Piotrowski" <michal.k.k.piotrowski@...il.com>
To:	"Paolo Ornati" <ornati@...twebnet.it>
Cc:	"Linux Kernel Mailing List" <linux-kernel@...r.kernel.org>,
	"Avi Kivity" <avi@...ranet.com>, kvm-devel@...ts.sourceforge.net
Subject: Re: WARNING: at arch/x86_64/kernel/smp.c:379 smp_call_function_single()

Hi,

On 10/08/07, Paolo Ornati <ornati@...twebnet.it> wrote:
> Just got this warning during suspend2ram (2.6.23-rc2-gac078602).
>
> Config and full dmesg attached.
>
>
> [  756.707601] Disabling non-boot CPUs ...
> [  756.712034] kvm: disabling virtualization on CPU1
> [  756.712037] WARNING: at arch/x86_64/kernel/smp.c:379 smp_call_function_single()
> [  756.712039]
> [  756.712039] Call Trace:
> [  756.712046]  [<ffffffff8021d159>] smp_call_function_single+0x119/0x120
> [  756.712050]  [<ffffffff80542169>] thread_return+0x1bf/0x626
> [  756.712054]  [<ffffffff80234b5b>] sys_sched_yield+0x2b/0x80
> [  756.712057]  [<ffffffff8043684b>] kvm_cpu_hotplug+0x4b/0xa0
> [  756.712060]  [<ffffffff80247c83>] notifier_call_chain+0x53/0x80
> [  756.712062]  [<ffffffff80247d09>] __raw_notifier_call_chain+0x9/0x10
> [  756.712065]  [<ffffffff80247d21>] raw_notifier_call_chain+0x11/0x20
> [  756.712068]  [<ffffffff8026184b>] take_cpu_down+0x1b/0x30
> [  756.712071]  [<ffffffff802699d2>] do_stop+0xd2/0x150
> [  756.712073]  [<ffffffff80269900>] do_stop+0x0/0x150
> [  756.712076]  [<ffffffff8024f84d>] kthread+0x4d/0x80
> [  756.712079]  [<ffffffff8020cb28>] child_rip+0xa/0x12
> [  756.712081]  [<ffffffff8020c23c>] restore_args+0x0/0x30
> [  756.712084]  [<ffffffff8024f800>] kthread+0x0/0x80
> [  756.712086]  [<ffffffff8020cb1e>] child_rip+0x0/0x12
> [  756.712087]
> [  756.815693] CPU 1 is now offline
> [  756.815697] lockdep: not fixing up alternatives.
> [  756.819276] CPU1 is down
>

Added to KR list, thanks for the report.

Regrads,
Michal

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