From: Avi Kivity <avi@redhat.com>
To: Cornelius Wefelscheid <corwefel@cs.tu-berlin.de>
Cc: kvm@vger.kernel.org
Subject: Re: CPU Limitations
Date: Tue, 28 Apr 2009 11:41:37 +0300 [thread overview]
Message-ID: <49F6C141.8080504@redhat.com> (raw)
In-Reply-To: <1240843770.7092.12.camel@cornelius>
Cornelius Wefelscheid wrote:
> Hi,
> i have the following problem:
> I got a amd opteron server with 32 (4*8) cpus.
>
> Since kvm is only able to created a virtual machine with 16 cpus, i
> changed KVM_MAX_VCPUS, MAX_VCPUS and MAX_CPUS
> as suggested in
> http://www.linux-kvm.org/wiki/images/b/be/KvmForum2008$kdf2008_6.pdf
>
> after compiling everything is shows the right number of maximum cpus in
> the virt-manager,
> but it is still not working.
>
> If i start for example my virtual machine with
>
> kvm -m 4000 -smp 30 disk0.img
>
> i get a segmentation fault.
> in the logfile it looks like that:
>
> [ 4440.424512] __ratelimit: 18 callbacks suppressed
> [ 4440.424523] kvm[7054]: segfault at 1ae5cf6b0 ip 00000000004092ba sp
> 00007fff3dbb8dc0 error 4 in kvm[400000+1e1000]
>
> Any idee what is missing or what is wrong?
>
>
Get a core dump and look at it with gdb, you'll probably see the problem
immediately.
--
Do not meddle in the internals of kernels, for they are subtle and quick to panic.
next prev parent reply other threads:[~2009-04-28 8:41 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-04-27 14:49 CPU Limitations Cornelius Wefelscheid
2009-04-28 8:41 ` Avi Kivity [this message]
2009-04-30 15:12 ` Cornelius Wefelscheid
2009-04-30 15:20 ` Avi Kivity
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