[libvirt] Libvirt 0.10.0-rc1 segfaults when daemon run as root

Shawn Furrow sfurrow at vt.edu
Fri Aug 24 12:16:55 UTC 2012 

Hi all,

For some reason when I run "libvirtd -d" as root it seems to not start. I
investigate by running "libvirtd -v" as root and I get a segfault. Here is
the output:

2012-08-23 19:01:23.237+0000: 27464: info : libvirt version: 0.10.0
> 2012-08-23 19:01:23.237+0000: 27464: error : virDriverLoadModule:78 :
> failed to load module
> /usr/local/lib/libvirt/connection-driver/libvirt_driver_qemu.so
> /usr/local/lib/libvirt/connection-driver/libvirt_driver_qemu.so: undefined
> symbol: virSecurityManagerGetProcessLabel
> 2012-08-23 19:01:23.238+0000: 27464: error : virDriverLoadModule:78 :
> failed to load module
> /usr/local/lib/libvirt/connection-driver/libvirt_driver_lxc.so
> /usr/local/lib/libvirt/connection-driver/libvirt_driver_lxc.so: undefined
> symbol: virSecurityManagerGetProcessLabel
> Caught Segmentation violation dumping internal log buffer:
>
>     ====== start of log =====
> 2012-08-23 19:01:23.235+000027464: debug : main:1120 : Decided on pid file
> path '/usr/local/var/run/libvirtd.pid'
> 2012-08-23 19:01:23.235+000027464: debug : main:1130 : Decided on socket
> paths '/usr/local/var/run/libvirt/libvirt-sock' and
> '/usr/local/var/run/libvirt/libvirt-sock-ro'
> 2012-08-23 19:01:23.235+000027464: debug : main:1168 : Ensuring run dir
> '/usr/local/var/run/libvirt' exists
> 2012-08-23 19:01:23.235+000027464: debug : virEventRegisterDefaultImpl:204
> : registering default event implementation
> 2012-08-23 19:01:23.235+000027464: debug : virEventPollAddHandle:111 :
> Used 0 handle slots, adding at least 10 more
> 2012-08-23 19:01:23.235+000027464: debug : virEventPollInterruptLocked:697
> : Skip interrupt, 0 0
> 2012-08-23 19:01:23.236+000027464: debug : virEventPollAddHandle:136 :
> EVENT_POLL_ADD_HANDLE: watch=1 fd=5 events=1 cb=0x7f323cd415a0 opaque=(nil)
> ff=(nil)
> 2012-08-23 19:01:23.236+000027464: debug : virEventRegisterImpl:177 :
> addHandle=0x7f323cd423d0 updateHandle=0x7f323cd414a0
> removeHandle=0x7f323cd41360 addTimeout=0x7f323cd42220
> updateTimeout=0x7f323cd415e0 removeTimeout=0x7f323cd41260
> 2012-08-23 19:01:23.236+000027464: debug : virNetServerNew:407 :
> srv=0xdd8890 refs=1
> 2012-08-23 19:01:23.236+000027464: debug : main:1206 : Dropping privileges
> (if required)
> 2012-08-23 19:01:23.236+000027464: debug : virDriverModuleInitialize:53 :
> Module dir /usr/local/lib/libvirt/connection-driver
> 2012-08-23 19:01:23.236+000027464: debug : virDriverLoadModule:66 : Module
> load network
> 2012-08-23 19:01:23.236+000027464: debug : virRegisterNetworkDriver:564 :
> registering Network as network driver 4
> 2012-08-23 19:01:23.236+000027464: debug : virDriverLoadModule:66 : Module
> load storage
> 2012-08-23 19:01:23.236+000027464: debug : virRegisterStorageDriver:624 :
> registering storage as storage driver 4
> 2012-08-23 19:01:23.236+000027464: debug : virDriverLoadModule:66 : Module
> load secret
> 2012-08-23 19:01:23.237+000027464: debug : virRegisterSecretDriver:684 :
> registering secret as secret driver 3
> 2012-08-23 19:01:23.237+000027464: debug : virDriverLoadModule:66 : Module
> load nwfilter
> 2012-08-23 19:01:23.237+000027464: debug : virRegisterNWFilterDriver:714 :
> registering nwfilter as network filter driver 3
> 2012-08-23 19:01:23.237+000027464: debug : virDriverLoadModule:66 : Module
> load qemu
> 2012-08-23 19:01:23.237+000027464: error : virDriverLoadModule:78 : failed
> to load module
> /usr/local/lib/libvirt/connection-driver/libvirt_driver_qemu.so
> /usr/local/lib/libvirt/connection-driver/libvirt_driver_qemu.so: undefined
> symbol: virSecurityManagerGetProcessLabel
> 2012-08-23 19:01:23.238+000027464: debug : virDriverLoadModule:66 : Module
> load lxc
> 2012-08-23 19:01:23.238+000027464: error : virDriverLoadModule:78 : failed
> to load module
> /usr/local/lib/libvirt/connection-driver/libvirt_driver_lxc.so
> /usr/local/lib/libvirt/connection-driver/libvirt_driver_lxc.so: undefined
> symbol: virSecurityManagerGetProcessLabel
> 2012-08-23 19:01:23.238+000027464: debug : virDriverLoadModule:66 : Module
> load uml
> 2012-08-23 19:01:23.238+000027464: debug : virRegisterDriver:732 :
> driver=0x7f3232ec7760 name=UML
> 2012-08-23 19:01:23.238+000027464: debug : virRegisterDriver:747 :
> registering UML as driver 6
> 2012-08-23 19:01:23.238+000027464: debug : virDriverLoadModule:66 : Module
> load xen
> 2012-08-23 19:01:23.239+000027464: debug : virRegisterDriver:732 :
> driver=0x7f3232caad00 name=Xen
> 2012-08-23 19:01:23.239+000027464: debug : virRegisterDriver:747 :
> registering Xen as driver 7
> 2012-08-23 19:01:23.239+000027464: debug : virNetServerProgramNew:63 :
> prog=0xddca40 refs=1
> 2012-08-23 19:01:23.239+000027464: debug : virNetServerProgramRef:84 :
> prog=0xddca40 refs=2
> 2012-08-23 19:01:23.239+000027464: debug : virNetServerProgramNew:63 :
> prog=0xddcbc0 refs=1
> 2012-08-23 19:01:23.239+000027464: debug : virNetServerProgramRef:84 :
> prog=0xddcbc0 refs=2
> 2012-08-23 19:01:23.239+000027464: debug : virEventPollInterruptLocked:697
> : Skip interrupt, 0 0
> 2012-08-23 19:01:23.239+000027464: debug : virEventPollAddHandle:136 :
> EVENT_POLL_ADD_HANDLE: watch=2 fd=7 events=1 cb=0x7f323ce241e0
> opaque=0xdd8890 ff=(nil)
> 2012-08-23 19:01:23.239+000027464: debug : main:1257 : Attempting to
> configure auditing subsystem
> 2012-08-23 19:01:23.239+000027464: debug : main:1263 : Proceeding without
> auditing
> 2012-08-23 19:01:23.239+000027464: debug : virHookCheck:119 : No hook
> script /usr/local/etc/libvirt/hooks/daemon
> 2012-08-23 19:01:23.239+000027464: debug : virHookCheck:119 : No hook
> script /usr/local/etc/libvirt/hooks/qemu
> 2012-08-23 19:01:23.239+000027464: debug : virHookCheck:119 : No hook
> script /usr/local/etc/libvirt/hooks/lxc
> 2012-08-23 19:01:23.239+000027464: debug : daemonSetupNetworking:464 :
> Registering unix socket /usr/local/var/run/libvirt/libvirt-sock
> 2012-08-23 19:01:23.239+000027464: debug : virNetSocketNew:119 :
> localAddr=0x7fff419bf530 remoteAddr=(nil) fd=9 errfd=-1 pid=0
> 2012-08-23 19:01:23.239+000027464: debug : virNetSocketNew:179 :
> RPC_SOCKET_NEW: sock=0xddcbf0 refs=1 fd=9 errfd=-1 pid=0
> localAddr=127.0.0.1;0, remoteAddr=(null)
> 2012-08-23 19:01:23.239+000027464: debug : virNetSocketRef:713 :
> RPC_SOCKET_REF: sock=0xddcbf0 refs=2
> 2012-08-23 19:01:23.239+000027464: debug : virEventPollInterruptLocked:697
> : Skip interrupt, 0 0
> 2012-08-23 19:01:23.239+000027464: debug : virEventPollAddHandle:136 :
> EVENT_POLL_ADD_HANDLE: watch=3 fd=9 events=0 cb=0x7f323ce2ab10
> opaque=0xddcbf0 ff=0x7f323ce2ba60
> 2012-08-23 19:01:23.239+000027464: debug : daemonSetupNetworking:474 :
> Registering unix socket /usr/local/var/run/libvirt/libvirt-sock-ro
> 2012-08-23 19:01:23.239+000027464: debug : virNetSocketNew:119 :
> localAddr=0x7fff419bf530 remoteAddr=(nil) fd=10 errfd=-1 pid=0
> 2012-08-23 19:01:23.239+000027464: debug : virNetSocketNew:179 :
> RPC_SOCKET_NEW: sock=0xddd430 refs=1 fd=10 errfd=-1 pid=0
> localAddr=127.0.0.1;0, remoteAddr=(null)
> 2012-08-23 19:01:23.239+000027464: debug : virNetSocketRef:713 :
> RPC_SOCKET_REF: sock=0xddd430 refs=2
> 2012-08-23 19:01:23.239+000027464: debug : virEventPollInterruptLocked:697
> : Skip interrupt, 0 0
> 2012-08-23 19:01:23.239+000027464: debug : virEventPollAddHandle:136 :
> EVENT_POLL_ADD_HANDLE: watch=4 fd=10 events=0 cb=0x7f323ce2ab10
> opaque=0xddd430 ff=0x7f323ce2ba60
> 2012-08-23 19:01:23.239+000027464: debug : virNetServerRef:420 :
> srv=0xdd8890 refs=2
> 2012-08-23 19:01:23.239+000027464: debug : virNetlinkEventServiceStart:656
> : libnl was not available at build time
> 2012-08-23 19:01:23.239+000027464: debug : virNetServerRun:714 :
> srv=0xdd8890 quit=0
> 2012-08-23 19:01:23.239+000027464: debug : virEventRunDefaultImpl:244 :
> running default event implementation
> 2012-08-23 19:01:23.239+000027464: debug : virEventPollCleanupTimeouts:501
> : Cleanup 0
> 2012-08-23 19:01:23.239+000027464: debug : virEventPollCleanupTimeouts:537
> : Found 0 out of 0 timeout slots used, releasing 0
> 2012-08-23 19:01:23.239+000027464: debug : virEventPollCleanupHandles:549
> : Cleanup 4
> 2012-08-23 19:01:23.240+000027464: debug : virEventPollMakePollFDs:378 :
> Prepare n=0 w=1, f=5 e=1 d=0
> 2012-08-23 19:01:23.240+000027475: debug : virStateInitialize:798 :
> Running global init for Remote state driver
> 2012-08-23 19:01:23.240+000027475: debug : virStateInitialize:798 :
> Running global init for Network state driver
> 2012-08-23 19:01:23.240+000027464: debug : virEventPollMakePollFDs:378 :
> Prepare n=1 w=2, f=7 e=1 d=0
> 2012-08-23 19:01:23.240+000027464: debug : virEventPollMakePollFDs:378 :
> Prepare n=2 w=3, f=9 e=0 d=0
> 2012-08-23 19:01:23.240+000027464: debug : virEventPollMakePollFDs:378 :
> Prepare n=3 w=4, f=10 e=0 d=0
> 2012-08-23 19:01:23.240+000027464: debug :
> virEventPollCalculateTimeout:320 : Calculate expiry of 0 timers
> 2012-08-23 19:01:23.240+000027464: debug :
> virEventPollCalculateTimeout:346 : Timeout at 0 due in -1 ms
> 2012-08-23 19:01:23.240+000027464: debug : virEventPollRunOnce:614 :
> EVENT_POLL_RUN: nhandles=2 timeout=-1
>
>      ====== end of log =====
> Segmentation fault/


However, when I run "libvirtd -d" as me, it does not segfault and continues
running. However I cannot connect to the libvirt-sock because it gets
created at "$HOME/.cache/libvirt/libvirt-sock" but virsh looks for it at
"/usr/local/var/run/libvirt-sock".

Here is what I get when I run "libvirtd -v" as me:

2012-08-23 19:02:15.145+0000: 27483: info : libvirt version: 0.10.0
> 2012-08-23 19:02:15.145+0000: 27483: error : virDriverLoadModule:78 :
> failed to load module
> /usr/local/lib/libvirt/connection-driver/libvirt_driver_qemu.so
> /usr/local/lib/libvirt/connection-driver/libvirt_driver_qemu.so: undefined
> symbol: virSecurityManagerGetProcessLabel
> 2012-08-23 19:02:15.145+0000: 27483: error : virDriverLoadModule:78 :
> failed to load module
> /usr/local/lib/libvirt/connection-driver/libvirt_driver_lxc.so
> /usr/local/lib/libvirt/connection-driver/libvirt_driver_lxc.so: undefined
> symbol: virSecurityManagerGetProcessLabel


Any ideas why this is happening? I am on Ubuntu 10.04 running libvirt
0.10.0 with qemu-kvm 1.1

Thanks,
Shawn

-- 
Virginia Tech
Bradley Department of Electrical and Computer Engineering
B.S. Electrical Engineering
B.S. Computer Engineering
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