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Re: [Qemu-devel] kvm process disappears

From: Stefan Priebe - Profihost AG
Subject: Re: [Qemu-devel] kvm process disappears
Date: Fri, 10 May 2013 11:07:48 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130329 Thunderbird/17.0.5

Am 10.05.2013 09:42, schrieb Stefan Hajnoczi:
> On Fri, May 10, 2013 at 08:12:39AM +0200, Stefan Priebe - Profihost AG wrote:
>> i've now seen this several times. A VM is suddently down no segfault
>> nothing the kvm process just disappears...
>> Anybody any idea how to debug this?
>> Sadly i can't reproduce. Qemu version is 1.4.1.
> 1. Double-check dmesg(1) for out-of-memory killer or segfaults.
done => nothing in there also 120-140GB mem free.

> 2. Check libvirt or other management tool logs again.

kvm process was started via bash no management tool involved.

> 3. Either use gdb or an LD_PRELOAD library that catches exit(3) and
>    _exit(2) and dumps core using abort(3).  Make sure core dumps are
>    enabled.

LD_PRELOAD sounds good can you point me to such a lib?


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