From mboxrd@z Thu Jan  1 00:00:00 1970
From: Daniel Bareiro <daniel-listas@gmx.net>
Subject: Re: CPU hotplug add seems broken
Date: Sat, 9 Jan 2010 16:30:11 -0300
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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=3D2, 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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