[pve-devel] [Qemu-devel] kvm process disappears

[Stefan Priebe - Profihost AG]

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?

Stefan