2009/12/3 Nikola Ciprich <extmaillist@xxxxxxxxxxx>: > Hi, > few days ago, I've reported problem with libvirt getting stuck while saving kvm. > Today, I tried latest git and it seems the problem is solved which is great. > Unfortunately, there seems to be another problem (which I noticed even for 0.7.4 although > haven't reported yet) is that libvirtd sometimes crashes. > I'm not 100% sure which action causes it to crash as it's being executed > by cluster resource manager, but the backtrace might help those familiar > with it's internals. (I think it's domain start) > > (gdb) bt > #0 0x00007f4f46d03cd0 in pthread_mutex_unlock () from /lib64/libpthread.so.0 > #1 0x000000000042da91 in qemuDomainObjExitMonitor (obj=0x980a80) at qemu/qemu_driver.c:287 > #2 0x000000000043ca84 in qemudDomainGetInfo (dom=0x978d50, info=0x42690de0) at qemu/qemu_driver.c:3294 > #3 0x00007f4f47ddf3fb in virDomainGetInfo (domain=0x978d50, info=0x42690de0) at libvirt.c:2786 > #4 0x000000000041d79e in remoteDispatchDomainGetInfo (server=<value optimized out>, client=<value optimized out>, conn=0x961840, > hdr=<value optimized out>, rerr=0x42690e70, args=<value optimized out>, ret=0x42690f50) at remote.c:1076 > #5 0x000000000041f35c in remoteDispatchClientCall (server=0x95b780, client=0x97e310, msg=0x980b00) at dispatch.c:506 > #6 0x000000000041f712 in remoteDispatchClientRequest (server=0x95b780, client=0x97e310, msg=0x980b00) at dispatch.c:388 > #7 0x00000000004147e2 in qemudWorker (data=<value optimized out>) at libvirtd.c:1518 > #8 0x00007f4f46d004a7 in start_thread () from /lib64/libpthread.so.0 > #9 0x00007f4f46a76c2d in clone () from /lib64/libc.so.6 > > Could anyone please have a look at it? > thanks a lot in advance > nik > > Seems to be the problem that Daniel tries to fix in this patch: https://www.redhat.com/archives/libvir-list/2009-November/msg00755.html Unfortunately this patch introduces a lock ordering problem that results in a deadlock. Daniel is working on a improved patch. Matthias -- Libvir-list mailing list Libvir-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvir-list