Re: [Qemu-devel] [PATCH] vl: take iothread lock very early

[Christian Borntraeger <borntraeger@de.ibm.com>]

Am 05.03.2015 um 01:40 schrieb Eric Blake:
> On 03/03/2015 10:32 AM, Paolo Bonzini wrote:
>>
>>
>> On 03/03/2015 18:19, Oliver Francke wrote:
>>>
>>> #0  __GI_exit (status=1) at exit.c:104
>>> #1  0x000055555575cf15 in os_daemonize () at os-posix.c:227
>>> #2  0x0000555555773f2e in main (argc=50, argv=0x7fffffffe0d8,
>>> envp=0x7fffffffe270) at vl.c:3770
>>>
>>> compiled with "--enable-debug" and in gdb "b exit". Not a coder, so if
>>> this is _not_ sufficient, please give me some adivce ;)
>>
>> Try removing -daemonize (hmm, that might actually fix the bug).
> 
> I've confirmed that libvirt required -daemonize, and that (temporarily)
> removing -daemonize makes things work again.  So we definitely need this.
> 
> Tested-by: Eric Blake <eblake@redhat.com>

Yes, came to the same conclusion.
Is there a chance to harden the error detection of libvirt somewhat?
I got things like 
"unsupported OS type hvm"
"unsupported configuration: QEMU 2.2.50 is too new for help parsing"

which made it quite hard to find out what was wrong.

Christian