Public bug reported:
I am running libvirtd to control qemu/kvm machines (via openstack nova-
compute) and have found that a long-running libvirtd daemon eventually
stops responding to commands.
Admittedly, these systems are a little loaded, however I do not expect
libvirtd to stop responding entirely. Please let me know if there is any
further information that you require?
Restarting libvirtd as a work-around allows libvirtd to start responding
again.
== Server A ==
= Process Information =
$ time sudo virsh -c qemu:///system list
^C
real 0m30.094s
user 0m0.000s
sys 0m0.000s
$ ps axuwwwf | grep libvirtd
root 15606 0.1 0.0 276984 4564 ? Sl Nov22 32:04
/usr/sbin/libvirtd -d
root 16389 0.0 0.0 276984 3552 ? S Dec04 0:00 \_
/usr/sbin/libvirtd -d
$ sudo strace -p 15606
Process 15606 attached - interrupt to quit
futex(0x7f2f0b91b9d0, FUTEX_WAIT, 15607, NULL
$ sudo strace -p 16389
Process 16389 attached - interrupt to quit
futex(0x7f2f0f980e28, FUTEX_WAIT_PRIVATE, 2, NULL
= System Information =
$ cat /etc/lsb-release·
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=11.10
DISTRIB_CODENAME=oneiric
DISTRIB_DESCRIPTION="Ubuntu 11.10"
$ dpkg -l | grep libvirt
ii libvirt-bin 0.9.2-4ubuntu15.1
the programs for the libvirt library
ii libvirt0 0.9.2-4ubuntu15.1
library for interfacing with different virtualization systems
== Server B ==
= Process Information =
$ time sudo virsh -c qemu:///system list
^C
real 0m34.162s
user 0m0.000s
sys 0m0.010s
root 6053 0.1 0.0 277132 3344 ? Sl Dec05 12:51
/usr/sbin/libvirtd -d
root 27262 0.0 0.0 277132 2132 ? S Dec10 0:00 \_
/usr/sbin/libvirtd -d
$ sudo strace -p 27262
Process 27262 attached - interrupt to quit
futex(0x7f0238cf6e28, FUTEX_WAIT_PRIVATE, 2, NULL
$ sudo strace -p 6053
Process 6053 attached - interrupt to quit
futex(0x7f0234c919d0, FUTEX_WAIT, 6054, NULL
$ sudo fuser /var/run/libvirt/libvirt-sock
/run/libvirt/libvirt-sock: 6053
$ sudo fuser /var/run/libvirt/libvirt-sock-ro
/run/libvirt/libvirt-sock-ro: 6053
$ sudo lsof /var/run/libvirt/libvirt-sock
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
libvirtd 6053 root 10u unix 0xffff8805f61b3740 0t0 78644591
/var/run/libvirt/libvirt-sock
libvirtd 6053 root 33u unix 0xffff8805f61b6b40 0t0 78643065
/var/run/libvirt/libvirt-sock
Swap (from /proc/$pid/smaps):
1672 kB - 27262 (libvirtd)
1684 kB - 6053 (libvirtd)
= System Information =
$ cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=11.10
DISTRIB_CODENAME=oneiric
DISTRIB_DESCRIPTION="Ubuntu 11.10"
$ dpkg -l | grep libvirt
ii libvirt-bin 0.9.2-4ubuntu15.1 the
programs for the libvirt library
ii libvirt0 0.9.2-4ubuntu15.1
library for interfacing with different virtualization systems
** Affects: libvirt (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/903212
Title:
libvirtd stops responding
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