Re: [libvirt-users] QemuDomainObjEndJob called when libvirtd is started and libvirt insists qemu is using the wrong disk source.
On 04/22/2015 08:19 AM, Laine Stump wrote:
If you're compiling yourself, then you should be all set to run
under
gdb. libvirt-debuginfo is just a separate subpackage that contains all
the symbol and line number info from the build so that backtraces in
gdb make sense. Try attaching gdb to the libvirtd process and do
something like "thread apply all bt" - if you see
function/argument/file names and line numbers, then you already have
the symbols available.
> So this is compiled on Slackware64-14.1 as I prefer a more bsd linux and
> like the simplicity of a traditional init, as well as the ability to
> cook this down into a very simple usb based distro not unlike slax.
Occasionally there are cases where libvirtd terminates guests on restart
due to some failure to parse the guest's status XML, inability to
connect to the guest's qemu monitor, or some other thing that would
render the guest inaccessible. We of course want to eliminate as many of
those situations as possible, so we would love to see the backtrace you
can get from gdb.
Laine,
My apologies on the delay getting back to you, I've been pretty slammed
lately. Anyway I have the bracktrace you requested.
I simply started libvirtd, started my vm, killed libvirtd, then started
it again with gdb in foreground mode with the breakpoint set.
I got a ton of debug info that I posted here:
http://www.aptalaska.net/~matt.s/libvirt.txt
but the backtrace is simply:
Breakpoint 1, 0x00007fffc72a0240 in qemuProcessKill () from
/usr/lib64/libvirt/connection-driver/libvirt_driver_qemu.so
(gdb) bt
#0 0x00007fffc72a0240 in qemuProcessKill () from
/usr/lib64/libvirt/connection-driver/libvirt_driver_qemu.so
#1 0x00007fffc72a19cd in qemuProcessStop () from
/usr/lib64/libvirt/connection-driver/libvirt_driver_qemu.so
#2 0x00007fffc72a27d6 in ?? () from
/usr/lib64/libvirt/connection-driver/libvirt_driver_qemu.so
#3 0x00007ffff74b6882 in ?? () from /usr/lib64/libvirt.so.0
#4 0x00007ffff5722ce2 in start_thread () from /lib64/libpthread.so.0
#5 0x00007ffff31d38cd in clone () from /lib64/libc.so.6
(gdb)
Thanks!
schu