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[libvirt] infinite loop while restarting libvirt after LXC creation



Hi,

I'm using OpenStack grizzly on Ubuntu 12.04 to create LXC containers.

After successful container creation and a subsequent reboot of the hypervisor,
libvirt gets stuck in an infinite loop, spinning at 100%

Here's the backtrace:

(gdb) thread 12
[Switching to thread 12 (Thread 0x7fffee46f700 (LWP 7052))]
#0 0x00007ffff7617de1 in virDomainDefMaybeAddController (def=0x7fffe8033b30, type=2, idx=73405, model=-1) at conf/domain_conf.c:10570
warning: Source file is more recent than executable.
10570       for (i = 0; i < def->ncontrollers; i++) {
(gdb) bt
#0 0x00007ffff7617de1 in virDomainDefMaybeAddController (def=0x7fffe8033b30, type=2, idx=73405, model=-1) at conf/domain_conf.c:10570 #1 0x00007ffff76180ab in virDomainDefAddDiskControllersForType (def=0x7fffe8033b30, controllerType=2, diskBus=<optimized out>) at conf/domain_conf.c:13653 #2 0x00007ffff761a11d in virDomainDefAddImplicitControllers (def=0x7fffe8033b30) at conf/domain_conf.c:13747 #3 0x00007ffff7623a29 in virDomainDefParseXML (xml=0x7fffe8034500, root=0x7fffe802fc60, ctxt=<optimized out>, caps=0x7fffe8030f20, xmlopt=0x7fffe8031a60, expectedVirtTypes=<optimized out>, flags=2) at conf/domain_conf.c:12375 #4 0x00007ffff76299a0 in virDomainDefParseNode (xml=0x7fffe8034500, root=0x7fffe802fc60, caps=0x7fffe8030f20, xmlopt=0x7fffe8031a60, expectedVirtTypes=16, flags=2) at conf/domain_conf.c:12562 #5 0x00007ffff7629b19 in virDomainDefParse (xmlStr=<optimized out>, filename=<optimized out>, caps=0x7fffe8030f20, xmlopt=0x7fffe8031a60, expectedVirtTypes=16, flags=2) at conf/domain_conf.c:12504 #6 0x00007ffff762a489 in virDomainObjListLoadConfig (opaque=0x0, notify=0, expectedVirtTypes=16, name=0x7fffe80fb543 "instance-00000017", autostartDir=0x7fffe8033280 "/etc/libvirt/lxc/autostart", configDir=0x7fffe8033b10 "/etc/libvirt/lxc", xmlopt=0x7fffe8031a60, caps=0x7fffe8030f20, doms=0x7fffe80fac40) at conf/domain_conf.c:17027 #7 virDomainObjListLoadAllConfigs (doms=0x7fffe80fac40, configDir=<optimized out>, autostartDir=0x7fffe8033280 "/etc/libvirt/lxc/autostart", liveStatus=<optimized out>, caps=0x7fffe8030f20, xmlopt=0x7fffe8031a60, expectedVirtTypes=16,
    notify=0, opaque=0x0) at conf/domain_conf.c:17155
#8 0x00007fffef1def58 in lxcStateInitialize (privileged=<optimized out>, callback=<optimized out>, opaque=<optimized out>) at lxc/lxc_driver.c:1449 #9 lxcStateInitialize (privileged=<optimized out>, callback=<optimized out>, opaque=<optimized out>) at lxc/lxc_driver.c:1361 #10 0x00007ffff766df12 in virStateInitialize (privileged=true, callback=0x555555568110 <daemonInhibitCallback>, opaque=0x5555557cc8e0) at libvirt.c:832 #11 0x00005555555681c0 in daemonRunStateInit (opaque=<optimized out>) at libvirtd.c:902 #12 0x00007ffff75f0ae6 in virThreadHelper (data=<optimized out>) at util/virthreadpthread.c:161 #13 0x00007ffff733ee9a in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#14 0x00007ffff706bccd in clone () from /lib/x86_64-linux-gnu/libc.so.6
#15 0x0000000000000000 in ?? ()
(gdb) next





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