<html><head></head><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px"><div id="yui_3_16_0_1_1459699870854_2319">Hi,</div><div id="yui_3_16_0_1_1459699870854_2319" dir="ltr">I am having an issue on several KVM hosts which run CentOs7 and libvirt-daemon-1.2.17-13.el7_2.3.x86_64 .</div><div id="yui_3_16_0_1_1459699870854_2319" dir="ltr">About once a week the libvirtd hangs forever and becomes unresponsive, the only help is to restart it. I attached gdb to it and the output of it can be seen at the end of the mail. Laine from the irc channel suggests it has to do with dbus/policykit. If anybody got an idea what it could be and point me in the right direction or help further analyzing this issue I'd be very grateful.</div><div id="yui_3_16_0_1_1459699870854_2319" dir="ltr"><br></div><div id="yui_3_16_0_1_1459699870854_2319" dir="ltr">kind regards</div><div id="yui_3_16_0_1_1459699870854_2319" dir="ltr"><br></div><div id="yui_3_16_0_1_1459699870854_2319" dir="ltr">Philippe d'Anjou</div><div id="yui_3_16_0_1_1459699870854_2319" dir="ltr"><br></div><pre style="word-wrap: break-word;" id="yui_3_16_0_1_1459699870854_2495" class="">(gdb) thread apply all bt
Thread 16 (Thread 0x7f275e916700 (LWP 1973)):
#0 0x00007f276b5a06d5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1 0x00007f276df31c86 in virCondWait () from /lib64/libvirt.so.0
#2 0x00007f276df3258b in virThreadPoolWorker () from /lib64/libvirt.so.0
#3 0x00007f276df31a18 in virThreadHelper () from /lib64/libvirt.so.0
#4 0x00007f276b59cdc5 in start_thread () from /lib64/libpthread.so.0
#5 0x00007f276b2ca28d in clone () from /lib64/libc.so.6
Thread 15 (Thread 0x7f275e115700 (LWP 1974)):
#0 0x00007f276b5a06d5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1 0x00007f276df31c86 in virCondWait () from /lib64/libvirt.so.0
#2 0x00007f276df3258b in virThreadPoolWorker () from /lib64/libvirt.so.0
#3 0x00007f276df31a18 in virThreadHelper () from /lib64/libvirt.so.0
#4 0x00007f276b59cdc5 in start_thread () from /lib64/libpthread.so.0
#5 0x00007f276b2ca28d in clone () from /lib64/libc.so.6
Thread 14 (Thread 0x7f275d914700 (LWP 1975)):
#0 0x00007f276b5a06d5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1 0x00007f276df31c86 in virCondWait () from /lib64/libvirt.so.0
#2 0x00007f276df3258b in virThreadPoolWorker () from /lib64/libvirt.so.0
#3 0x00007f276df31a18 in virThreadHelper () from /lib64/libvirt.so.0
#4 0x00007f276b59cdc5 in start_thread () from /lib64/libpthread.so.0
#5 0x00007f276b2ca28d in clone () from /lib64/libc.so.6
Thread 13 (Thread 0x7f275d113700 (LWP 1976)):
#0 0x00007f276b5a06d5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1 0x00007f276df31c86 in virCondWait () from /lib64/libvirt.so.0
#2 0x00007f276df3258b in virThreadPoolWorker () from /lib64/libvirt.so.0
#3 0x00007f276df31a18 in virThreadHelper () from /lib64/libvirt.so.0
#4 0x00007f276b59cdc5 in start_thread () from /lib64/libpthread.so.0
#5 0x00007f276b2ca28d in clone () from /lib64/libc.so.6
Thread 12 (Thread 0x7f275c912700 (LWP 1977)):
#0 0x00007f276b5a06d5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1 0x00007f276df31c86 in virCondWait () from /lib64/libvirt.so.0
#2 0x00007f276df3258b in virThreadPoolWorker () from /lib64/libvirt.so.0
#3 0x00007f276df31a18 in virThreadHelper () from /lib64/libvirt.so.0
#4 0x00007f276b59cdc5 in start_thread () from /lib64/libpthread.so.0
#5 0x00007f276b2ca28d in clone () from /lib64/libc.so.6
Thread 11 (Thread 0x7f275c111700 (LWP 1978)):
#0 0x00007f276b5a06d5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1 0x00007f276df31c86 in virCondWait () from /lib64/libvirt.so.0
#2 0x00007f276df325ab in virThreadPoolWorker () from /lib64/libvirt.so.0
#3 0x00007f276df31a18 in virThreadHelper () from /lib64/libvirt.so.0
#4 0x00007f276b59cdc5 in start_thread () from /lib64/libpthread.so.0
---Type <return> to continue, or q <return> to quit---
#5 0x00007f276b2ca28d in clone () from /lib64/libc.so.6
Thread 10 (Thread 0x7f275b910700 (LWP 1979)):
#0 0x00007f276b5a06d5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1 0x00007f276df31c86 in virCondWait () from /lib64/libvirt.so.0
#2 0x00007f276df325ab in virThreadPoolWorker () from /lib64/libvirt.so.0
#3 0x00007f276df31a18 in virThreadHelper () from /lib64/libvirt.so.0
#4 0x00007f276b59cdc5 in start_thread () from /lib64/libpthread.so.0
#5 0x00007f276b2ca28d in clone () from /lib64/libc.so.6
Thread 9 (Thread 0x7f275b10f700 (LWP 1980)):
#0 0x00007f276b2bfc3d in poll () from /lib64/libc.so.6
#1 0x00007f276c5bc770 in socket_do_iteration () from /lib64/libdbus-1.so.3
#2 0x00007f276c5bb5ef in _dbus_transport_do_iteration () from /lib64/libdbus-1.so.3
#3 0x00007f276c5a4d7c in _dbus_connection_do_iteration_unlocked () from /lib64/libdbus-1.so.3
#4 0x00007f276c5a583c in _dbus_connection_block_pending_call () from /lib64/libdbus-1.so.3
#5 0x00007f276c5a5d3a in dbus_connection_send_with_reply_and_block () from /lib64/libdbus-1.so.3
#6 0x00007f276deea258 in virDBusCallMethod () from /lib64/libvirt.so.0
#7 0x00007f276df1fd14 in virPolkitCheckAuth () from /lib64/libvirt.so.0
#8 0x00007f276ec1d83a in remoteDispatchAuthPolkitHelper ()
#9 0x00007f276e03c4e2 in virNetServerProgramDispatch () from /lib64/libvirt.so.0
#10 0x00007f276e03775d in virNetServerHandleJob () from /lib64/libvirt.so.0
#11 0x00007f276df324f5 in virThreadPoolWorker () from /lib64/libvirt.so.0
#12 0x00007f276df31a18 in virThreadHelper () from /lib64/libvirt.so.0
#13 0x00007f276b59cdc5 in start_thread () from /lib64/libpthread.so.0
#14 0x00007f276b2ca28d in clone () from /lib64/libc.so.6
Thread 8 (Thread 0x7f275a90e700 (LWP 1981)):
#0 0x00007f276b5a06d5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1 0x00007f276df31c86 in virCondWait () from /lib64/libvirt.so.0
#2 0x00007f276df325ab in virThreadPoolWorker () from /lib64/libvirt.so.0
#3 0x00007f276df31a18 in virThreadHelper () from /lib64/libvirt.so.0
#4 0x00007f276b59cdc5 in start_thread () from /lib64/libpthread.so.0
#5 0x00007f276b2ca28d in clone () from /lib64/libc.so.6
Thread 7 (Thread 0x7f275a10d700 (LWP 1982)):
#0 0x00007f276b5a06d5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1 0x00007f276df31c86 in virCondWait () from /lib64/libvirt.so.0
#2 0x00007f276df325ab in virThreadPoolWorker () from /lib64/libvirt.so.0
#3 0x00007f276df31a18 in virThreadHelper () from /lib64/libvirt.so.0
#4 0x00007f276b59cdc5 in start_thread () from /lib64/libpthread.so.0
#5 0x00007f276b2ca28d in clone () from /lib64/libc.so.6
Thread 6 (Thread 0x7f2754c89700 (LWP 1985)):
#0 0x00007f276b5a06d5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1 0x00007f276df31c86 in virCondWait () from /lib64/libvirt.so.0
#2 0x00007f276df3258b in virThreadPoolWorker () from /lib64/libvirt.so.0
---Type <return> to continue, or q <return> to quit---
#3 0x00007f276df31a18 in virThreadHelper () from /lib64/libvirt.so.0
#4 0x00007f276b59cdc5 in start_thread () from /lib64/libpthread.so.0
#5 0x00007f276b2ca28d in clone () from /lib64/libc.so.6
Thread 5 (Thread 0x7f2754488700 (LWP 1986)):
#0 0x00007f276b5a06d5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1 0x00007f276df31c86 in virCondWait () from /lib64/libvirt.so.0
#2 0x00007f276df3258b in virThreadPoolWorker () from /lib64/libvirt.so.0
#3 0x00007f276df31a18 in virThreadHelper () from /lib64/libvirt.so.0
#4 0x00007f276b59cdc5 in start_thread () from /lib64/libpthread.so.0
#5 0x00007f276b2ca28d in clone () from /lib64/libc.so.6
Thread 4 (Thread 0x7f2753c87700 (LWP 1987)):
#0 0x00007f276b5a06d5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1 0x00007f276df31c86 in virCondWait () from /lib64/libvirt.so.0
#2 0x00007f276df3258b in virThreadPoolWorker () from /lib64/libvirt.so.0
#3 0x00007f276df31a18 in virThreadHelper () from /lib64/libvirt.so.0
#4 0x00007f276b59cdc5 in start_thread () from /lib64/libpthread.so.0
#5 0x00007f276b2ca28d in clone () from /lib64/libc.so.6
Thread 3 (Thread 0x7f2753486700 (LWP 1988)):
#0 0x00007f276b5a06d5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1 0x00007f276df31c86 in virCondWait () from /lib64/libvirt.so.0
#2 0x00007f276df3258b in virThreadPoolWorker () from /lib64/libvirt.so.0
#3 0x00007f276df31a18 in virThreadHelper () from /lib64/libvirt.so.0
#4 0x00007f276b59cdc5 in start_thread () from /lib64/libpthread.so.0
#5 0x00007f276b2ca28d in clone () from /lib64/libc.so.6
Thread 2 (Thread 0x7f2752c85700 (LWP 1989)):
#0 0x00007f276b5a06d5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1 0x00007f276df31c86 in virCondWait () from /lib64/libvirt.so.0
#2 0x00007f276df3258b in virThreadPoolWorker () from /lib64/libvirt.so.0
#3 0x00007f276df31a18 in virThreadHelper () from /lib64/libvirt.so.0
#4 0x00007f276b59cdc5 in start_thread () from /lib64/libpthread.so.0
#5 0x00007f276b2ca28d in clone () from /lib64/libc.so.6
Thread 1 (Thread 0x7f276eb7a8c0 (LWP 1971)):
#0 0x00007f276b2bfc3d in poll () from /lib64/libc.so.6
#1 0x00007f276def0556 in virEventPollRunOnce () from /lib64/libvirt.so.0
#2 0x00007f276deef032 in virEventRunDefaultImpl () from /lib64/libvirt.so.0
#3 0x00007f276e037035 in virNetDaemonRun () from /lib64/libvirt.so.0
#4 0x00007f276ebfc524 in main ()</pre></div></body></html>