Re: [libvirt] Run libvirtd from git: virsh hangs
On Thu, Apr 05, 2018 at 06:11:44PM +0300, Mathieu Tarral wrote:
> You can enable debugging for virsh too:
>
> LIBVIRT_DEBUG=1 ./tools/virsh list --all
>
> Alternatively, you can run the libvirtd under strace to see if it
> accepts() the connection request. Seems like virsh is trying to connect
> to a different socket than libvirtd is listening to.
I can see the socket being created by libvirtd in /var/run/libvirt/libvirt-sock.
And as i start virsh (the system one) as root, it tries to open a
connection to 'qemu:///system'
Now, i tried to monitor what virsh was trying to do with strace, as
you suggested, using
sudo strace -v -y -yy -s 4096 virsh list --all
connect(5<UNIX:[16655541]>, {sa_family=AF_UNIX,
You can see that it successfully connects to the libvirt.sock, and
then it polls on the socket (5).
That'll be waiting for a response from libvirtd I presume
So i tried to strace libvirtd too:
[snip]
strace isn't very helpful for debugging hangs - better to connect to
libvirtd with GDB and get a stack trace of all threads, using
(gdb) thread apply all bt
Regards,
Daniel
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