if cgmanager is restarted, this problem occurs.
2014-11-22 22:32:45.543+0000: 18448: error : cgm_dbus_connect:76 : cgmanager:
Error pinging manager: Did not receive a reply. Possible causes include: the
remote application did not send a reply, the message bus security policy
blocked the reply, the reply timeout expired, or the network connection was
broken.
process 18397: The last reference on a connection was dropped without closing
the connection. This is a bug in an application. See dbus_connection_unref()
documentation for details.
Most likely, the application was supposed to call dbus_connection_close(),
since this is a private connection.
(null):alloc.c:315: Assertion failed in nih_free: ptr != NULL
Segmentation fault (core dumped)
root@nubo-10:/var/crash/x# cgm ping
<returns ok, cgmanager is up>
... again ...
2014-11-22 22:34:47.076+0000: 19701: error : cgm_dbus_connect:76 : cgmanager:
Error pinging manager: Connection is closed
(null):dbus_error.c:69: Unhandled error from nih_dbus_error_raise: Connection
is closed
Segmentation fault (core dumped)
[Switching to Thread 0x7fe482ffd700 (LWP 21863)]
0x00007fe49a778d27 in __GI_raise (sig=sig@entry=6) at
../nptl/sysdeps/unix/sysv/linux/raise.c:56
56 ../nptl/sysdeps/unix/sysv/linux/raise.c: No such file or directory.
(gdb) bt
#0 0x00007fe49a778d27 in __GI_raise (sig=sig@entry=6) at
../nptl/sysdeps/unix/sysv/linux/raise.c:56
#1 0x00007fe49a77a418 in __GI_abort () at abort.c:89
#2 0x00007fe4986fd538 in cgmanager_get_pid_cgroup_sync () from
/lib/x86_64-linux-gnu/libcgmanager.so.0
#3 0x00007fe49ad9102b in cgm_controller_exists (controller=0x7fe49af1566b
"name=systemd") at /build/buildd/libvirt-1.2.8/./src/util/cgmanager.c:296
#4 0x00007fe49ad88a3b in cg_get_cgroups (group=<optimized out>) at
/build/buildd/libvirt-1.2.8/./src/util/vircgroup.c:374
#5 virCgroupDetectMounts (group=0x552e) at
/build/buildd/libvirt-1.2.8/./src/util/vircgroup.c:412
#6 0x00007fe49ad89c53 in virCgroupDetect (parent=<optimized out>,
path=<optimized out>, controllers=<optimized out>, pid=<optimized out>,
group=<optimized out>)
at /build/buildd/libvirt-1.2.8/./src/util/vircgroup.c:729
#7 virCgroupNew (pid=21806, path=0x7fe49af62dd8 "", parent=0x0,
controllers=-1, group=0x7fe482ffd700) at
/build/buildd/libvirt-1.2.8/./src/util/vircgroup.c:1263
#8 0x00007fe49ad89ec7 in virCgroupNewDetectMachine (name=0x7fe4842ef770
"instance-0000152c", drivername=0x7fe48b33affb "qemu", pid=21806,
partition=0x7fe4841b9400 "/machine", controllers=-2097162496,
group=0x7fe484309250) at
/build/buildd/libvirt-1.2.8/./src/util/vircgroup.c:1782
#9 0x00007fe48b2baec5 in qemuConnectCgroup (driver=<optimized out>,
vm=0x7fe4842c75d0) at /build/buildd/libvirt-1.2.8/./src/qemu/qemu_cgroup.c:781
#10 0x00007fe48b2cf447 in qemuProcessReconnect (opaque=0x552e,
opaque@entry=0x7fe48431c700) at
/build/buildd/libvirt-1.2.8/./src/qemu/qemu_process.c:3322
#11 0x00007fe49adda94e in virThreadHelper (data=<optimized out>) at
/build/buildd/libvirt-1.2.8/./src/util/virthread.c:197
#12 0x00007fe49ab0f0a5 in start_thread (arg=0x7fe482ffd700) at
pthread_create.c:309
#13 0x00007fe49a83c84d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:111
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https://bugs.launchpad.net/bugs/1367702
Title:
libvirt-bin terminated unexpectedly
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