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From: Daniel Bareiro <daniel-listas@gmx.net>
To: kvm@vger.kernel.org
Subject: Re: CPU hotplug add seems broken
Date: Sat, 9 Jan 2010 16:30:11 -0300	[thread overview]
Message-ID: <20100109193011.GA25426@defiant.freesoftware> (raw)
In-Reply-To: <5e93dcec1001080235r6b3de506q8b2ba132fa1ff52c@mail.gmail.com>

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On Friday, 08 January 2010 19:35:04 +0900,
Ryota Ozaki wrote:

> Hi all,

Hi, Ryota.

> I've tried CPU hotplug with latest qemu-kvm.git code,
> and got segmentation fault.

I'm also having this problem but with Linux 2.6.32.2 + qemu-kvm-0.12.1.1
in the host:

Jan  9 16:11:11 ubuntu kernel: [758479.480219] qemu-system-x86[29330]:
segfault at 90 ip 00007f5816bf3990 sp 00007fff9258fc88 error 4 in
libpthread-2.7.so[7f5816be8000+16000]

I've guest with one cpu in which I try to add one more. For this I
execute the following in qemu monitor and here it is where I got
segmentation fault:

(qemu) cpu_set 1 online
Connection closed by foreign host.


I'm not sure if the procedure that I'm following is the correct one. I
tried as much without using additional parameters when boots guest like
using -smp 1,maxcpus=2, but I reach the same result.

The Kernel of guest has checked the "Support for hot-pluggable CPUs"
option, in case it is necessary.

Regards,
Daniel
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  reply	other threads:[~2010-01-09 19:30 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-01-08 10:35 CPU hotplug add seems broken Ryota Ozaki
2010-01-09 19:30 ` Daniel Bareiro [this message]
2010-01-10  6:39   ` Gleb Natapov
2010-01-10  8:33     ` Ryota Ozaki
2010-01-10  8:43       ` Gleb Natapov
2010-01-11  9:24         ` Ryota Ozaki
2010-01-11  9:32           ` Gleb Natapov
2010-01-11 10:21             ` Ryota Ozaki
2010-01-11 10:23           ` Avi Kivity
2010-01-11 10:24             ` Gleb Natapov
2010-01-11 10:25               ` Avi Kivity
2010-01-11 10:42                 ` Gleb Natapov
2010-01-11 10:50                   ` Avi Kivity
2010-01-11 10:53                     ` Gleb Natapov
2010-01-11 10:58                       ` Avi Kivity
2010-01-11 11:03                         ` Gleb Natapov
2010-01-11 11:06                           ` Avi Kivity
2010-01-11 12:18                             ` Gleb Natapov
2010-01-11 13:57                     ` Anthony Liguori
2010-01-11 14:32                       ` Avi Kivity
2010-01-11 10:30             ` Ryota Ozaki

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