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`virsh list` hangs on my server that hosts a bunch of VMs. This might be due to the Debian upgrade I did on Feb 15, which upgrades `libvirt` from 2.4.0-1 to 3.0.0-2. I have tried restarting libvirtd for a few times, without luck. Attached below are some relevant logs; let me know if you need some more for debugging. Thanks for your help!! root@vm-host:~# uname -a Linux vm-host 4.6.0-1-amd64 #1 SMP Debian 4.6.4-1 (2016-07-18) x86_64 GNU/Linux root@vm-host:~# apt-cache policy libvirt-daemon libvirt-daemon: Installed: 3.0.0-2 Candidate: 3.0.0-2 Version table: *** 3.0.0-2 500 500 http://debian.csie.ntu.edu.tw/debian testing/main amd64 Packages 100 /var/lib/dpkg/status root@vm-host:~# strace -o /tmp/trace -e trace=network,file,poll virsh list # hangs forever ..... ^C root@vm-host:~# tail -10 /tmp/trace access("/etc/libvirt/libvirt.conf", F_OK) = 0 open("/etc/libvirt/libvirt.conf", O_RDONLY) = 5 access("/proc/vz", F_OK) = -1 ENOENT (No such file or directory) socket(AF_UNIX, SOCK_STREAM, 0) = 5 connect(5, {sa_family=AF_UNIX, sun_path="/var/run/libvirt/libvirt-sock"}, 110) = 0 getsockname(5, {sa_family=AF_UNIX}, [128->2]) = 0 poll([{fd=5, events=POLLOUT}, {fd=6, events=POLLIN}], 2, -1) = 1 ([{fd=5, revents=POLLOUT}]) poll([{fd=5, events=POLLIN}, {fd=6, events=POLLIN}], 2, -1) = ? ERESTART_RESTARTBLOCK (Interrupted by signal) --- SIGINT {si_signo=SIGINT, si_code=SI_KERNEL} --- +++ killed by SIGINT +++ root@vm-host:~# lsof /var/run/libvirt/libvirt-sock # hangs too ... ^C root@vm-host:~# LIBVIRT_DEBUG=1 virsh list 2017-02-17 15:58:36.126+0000: 18505: info : libvirt version: 3.0.0, package: 2 (Guido Günther <agx@xxxxxxxxxxx> Wed, 25 Jan 2017 07:04:08 +0100) 2017-02-17 15:58:36.126+0000: 18505: info : hostname: vm-host 2017-02-17 15:58:36.126+0000: 18505: debug : virGlobalInit:386 : register drivers 2017-02-17 15:58:36.127+0000: 18505: debug : virRegisterConnectDriver:684 : driver=0x7f1e5aca2c40 name=Test 2017-02-17 15:58:36.127+0000: 18505: debug : virRegisterConnectDriver:695 : registering Test as driver 0 2017-02-17 15:58:36.127+0000: 18505: debug : virRegisterConnectDriver:684 : driver=0x7f1e5aca4ac0 name=OPENVZ 2017-02-17 15:58:36.127+0000: 18505: debug : virRegisterConnectDriver:695 : registering OPENVZ as driver 1 2017-02-17 15:58:36.127+0000: 18505: debug : virRegisterConnectDriver:684 : driver=0x7f1e5aca5260 name=VMWARE 2017-02-17 15:58:36.127+0000: 18505: debug : virRegisterConnectDriver:695 : registering VMWARE as driver 2 2017-02-17 15:58:36.127+0000: 18505: debug : virRegisterConnectDriver:684 : driver=0x7f1e5aca3720 name=remote 2017-02-17 15:58:36.127+0000: 18505: debug : virRegisterConnectDriver:695 : registering remote as driver 3 2017-02-17 15:58:36.127+0000: 18505: debug : virEventRegisterDefaultImpl:267 : registering default event implementation 2017-02-17 15:58:36.127+0000: 18505: debug : virEventPollAddHandle:115 : Used 0 handle slots, adding at least 10 more 2017-02-17 15:58:36.127+0000: 18505: debug : virEventPollInterruptLocked:722 : Skip interrupt, 0 0 2017-02-17 15:58:36.127+0000: 18505: info : virEventPollAddHandle:140 : EVENT_POLL_ADD_HANDLE: watch=1 fd=3 events=1 cb=0x7f1e5a7fc140 opaque=(nil) ff=(nil) 2017-02-17 15:58:36.127+0000: 18505: debug : virEventRegisterImpl:234 : addHandle=0x7f1e5a7fc860 updateHandle=0x7f1e5a7fcb90 removeHandle=0x7f1e5a7fc1a0 addTimeout=0x7f1e5a7fc310 updateTimeout=0x7f1e5a7fc510 removeTimeout=0x7f1e5a7fc6e0 2017-02-17 15:58:36.127+0000: 18505: debug : virEventPollAddTimeout:230 : Used 0 timeout slots, adding at least 10 more 2017-02-17 15:58:36.127+0000: 18505: debug : virEventPollInterruptLocked:722 : Skip interrupt, 0 0 2017-02-17 15:58:36.127+0000: 18505: info : virEventPollAddTimeout:253 : EVENT_POLL_ADD_TIMEOUT: timer=1 frequency=-1 cb=0x563a29758360 opaque=0x7fff70941380 ff=(nil) 2017-02-17 15:58:36.127+0000: 18505: debug : virConnectOpenAuth:1245 : name=<null>, auth=0x7f1e5aca2a00, flags=0 2017-02-17 15:58:36.127+0000: 18505: info : virObjectNew:202 : OBJECT_NEW: obj=0x563a2a7f5f50 classname=virConnect 2017-02-17 15:58:36.127+0000: 18505: debug : virConfLoadConfig:1604 : Loading config file '/etc/libvirt/libvirt.conf' 2017-02-17 15:58:36.127+0000: 18505: debug : virConfReadFile:778 : filename=/etc/libvirt/libvirt.conf 2017-02-17 15:58:36.127+0000: 18506: debug : virThreadJobSet:99 : Thread 18506 is now running job vshEventLoop 2017-02-17 15:58:36.127+0000: 18506: debug : virEventRunDefaultImpl:311 : running default event implementation 2017-02-17 15:58:36.127+0000: 18505: debug : virFileClose:108 : Closed fd 5 2017-02-17 15:58:36.127+0000: 18506: debug : virEventPollCleanupTimeouts:525 : Cleanup 1 2017-02-17 15:58:36.127+0000: 18506: debug : virEventPollCleanupHandles:574 : Cleanup 1 2017-02-17 15:58:36.127+0000: 18505: debug : virConfAddEntry:241 : Add entry (null) (nil) 2017-02-17 15:58:36.127+0000: 18505: debug : virConfAddEntry:241 : Add entry (null) (nil) 2017-02-17 15:58:36.127+0000: 18505: debug : virConfAddEntry:241 : Add entry (null) (nil) 2017-02-17 15:58:36.127+0000: 18506: debug : virEventPollMakePollFDs:401 : Prepare n=0 w=1, f=3 e=1 d=0 2017-02-17 15:58:36.127+0000: 18506: debug : virEventPollCalculateTimeout:338 : Calculate expiry of 1 timers 2017-02-17 15:58:36.127+0000: 18505: debug : virConfAddEntry:241 : Add entry (null) (nil) 2017-02-17 15:58:36.127+0000: 18505: debug : virConfAddEntry:241 : Add entry (null) (nil) 2017-02-17 15:58:36.127+0000: 18505: debug : virConfAddEntry:241 : Add entry (null) (nil) 2017-02-17 15:58:36.127+0000: 18506: debug : virEventPollCalculateTimeout:371 : No timeout is pending 2017-02-17 15:58:36.127+0000: 18506: info : virEventPollRunOnce:640 : EVENT_POLL_RUN: nhandles=1 timeout=-1 2017-02-17 15:58:36.127+0000: 18505: debug : virConfAddEntry:241 : Add entry (null) (nil) 2017-02-17 15:58:36.127+0000: 18505: debug : virConfAddEntry:241 : Add entry (null) (nil) 2017-02-17 15:58:36.127+0000: 18505: debug : virConfAddEntry:241 : Add entry (null) (nil) 2017-02-17 15:58:36.127+0000: 18505: debug : virConfAddEntry:241 : Add entry (null) (nil) 2017-02-17 15:58:36.127+0000: 18505: debug : virConfAddEntry:241 : Add entry (null) (nil) 2017-02-17 15:58:36.127+0000: 18505: debug : virConfAddEntry:241 : Add entry (null) (nil) 2017-02-17 15:58:36.127+0000: 18505: debug : virConfAddEntry:241 : Add entry (null) (nil) 2017-02-17 15:58:36.127+0000: 18505: debug : virConfAddEntry:241 : Add entry (null) (nil) 2017-02-17 15:58:36.127+0000: 18505: debug : virConfAddEntry:241 : Add entry (null) (nil) 2017-02-17 15:58:36.127+0000: 18505: debug : virConfAddEntry:241 : Add entry (null) (nil) 2017-02-17 15:58:36.127+0000: 18505: debug : virConfGetValueString:932 : Get value string (nil) 0 2017-02-17 15:58:36.127+0000: 18505: debug : virConnectOpenInternal:1040 : no name, allowing driver auto-select 2017-02-17 15:58:36.127+0000: 18505: debug : virConnectOpenInternal:1083 : trying driver 0 (Test) ... 2017-02-17 15:58:36.127+0000: 18505: debug : virConnectOpenInternal:1098 : driver 0 Test returned DECLINED 2017-02-17 15:58:36.127+0000: 18505: debug : virConnectOpenInternal:1083 : trying driver 1 (OPENVZ) ... 2017-02-17 15:58:36.127+0000: 18505: debug : virConnectOpenInternal:1098 : driver 1 OPENVZ returned DECLINED 2017-02-17 15:58:36.127+0000: 18505: debug : virConnectOpenInternal:1083 : trying driver 2 (VMWARE) ... 2017-02-17 15:58:36.127+0000: 18505: debug : virConnectOpenInternal:1098 : driver 2 VMWARE returned DECLINED 2017-02-17 15:58:36.127+0000: 18505: debug : virConnectOpenInternal:1083 : trying driver 3 (remote) ... 2017-02-17 15:58:36.127+0000: 18505: debug : remoteConnectOpen:1343 : Auto-probe remote URI 2017-02-17 15:58:36.127+0000: 18505: debug : doRemoteOpen:907 : proceeding with name = 2017-02-17 15:58:36.127+0000: 18505: debug : doRemoteOpen:916 : Connecting with transport 1 2017-02-17 15:58:36.127+0000: 18505: debug : doRemoteOpen:1051 : Proceeding with sockname /var/run/libvirt/libvirt-sock 2017-02-17 15:58:36.127+0000: 18505: debug : virNetSocketNewConnectUNIX:639 : path=/var/run/libvirt/libvirt-sock spawnDaemon=0 binary=<null> 2017-02-17 15:58:36.127+0000: 18505: debug : virNetSocketNewConnectUNIX:703 : connect() succeeded 2017-02-17 15:58:36.127+0000: 18505: debug : virNetSocketNew:235 : localAddr=0x7fff70940d00 remoteAddr=0x7fff70940d90 fd=5 errfd=-1 pid=0 2017-02-17 15:58:36.127+0000: 18505: info : virObjectNew:202 : OBJECT_NEW: obj=0x563a2a7f7980 classname=virNetSocket 2017-02-17 15:58:36.127+0000: 18505: info : virNetSocketNew:291 : RPC_SOCKET_NEW: sock=0x563a2a7f7980 fd=5 errfd=-1 pid=0 localAddr=127.0.0.1;0, remoteAddr=127.0.0.1;0 2017-02-17 15:58:36.127+0000: 18505: info : virObjectNew:202 : OBJECT_NEW: obj=0x563a2a7f7d80 classname=virNetClient 2017-02-17 15:58:36.127+0000: 18505: info : virNetClientNew:328 : RPC_CLIENT_NEW: client=0x563a2a7f7d80 sock=0x563a2a7f7980 2017-02-17 15:58:36.127+0000: 18505: info : virObjectRef:296 : OBJECT_REF: obj=0x563a2a7f7d80 2017-02-17 15:58:36.127+0000: 18505: info : virObjectRef:296 : OBJECT_REF: obj=0x563a2a7f7980 2017-02-17 15:58:36.127+0000: 18505: debug : virEventPollInterruptLocked:726 : Interrupting 2017-02-17 15:58:36.127+0000: 18505: info : virEventPollAddHandle:140 : EVENT_POLL_ADD_HANDLE: watch=2 fd=5 events=1 cb=0x7f1e5a96cd10 opaque=0x563a2a7f7980 ff=0x7f1e5a96ccc0 2017-02-17 15:58:36.127+0000: 18505: debug : virKeepAliveNew:199 : client=0x563a2a7f7d80, interval=-1, count=0 2017-02-17 15:58:36.127+0000: 18505: info : virObjectNew:202 : OBJECT_NEW: obj=0x563a2a7f8080 classname=virKeepAlive 2017-02-17 15:58:36.127+0000: 18505: info : virKeepAliveNew:218 : RPC_KEEPALIVE_NEW: ka=0x563a2a7f8080 client=0x563a2a7f7d80 2017-02-17 15:58:36.127+0000: 18505: info : virObjectRef:296 : OBJECT_REF: obj=0x563a2a7f7d80 2017-02-17 15:58:36.127+0000: 18505: info : virObjectNew:202 : OBJECT_NEW: obj=0x563a2a7f6740 classname=virConnectCloseCallbackData 2017-02-17 15:58:36.127+0000: 18506: debug : virEventPollRunOnce:650 : Poll got 1 event(s) 2017-02-17 15:58:36.127+0000: 18506: debug : virEventPollDispatchTimeouts:432 : Dispatch 1 2017-02-17 15:58:36.127+0000: 18505: info : virObjectRef:296 : OBJECT_REF: obj=0x563a2a7f6740 2017-02-17 15:58:36.127+0000: 18506: debug : virEventPollDispatchHandles:478 : Dispatch 1 2017-02-17 15:58:36.127+0000: 18505: info : virObjectNew:202 : OBJECT_NEW: obj=0x563a2a7f7fa0 classname=virNetClientProgram 2017-02-17 15:58:36.127+0000: 18505: info : virObjectNew:202 : OBJECT_NEW: obj=0x563a2a7f7b60 classname=virNetClientProgram 2017-02-17 15:58:36.127+0000: 18505: info : virObjectNew:202 : OBJECT_NEW: obj=0x563a2a7f7910 classname=virNetClientProgram 2017-02-17 15:58:36.127+0000: 18506: debug : virEventPollDispatchHandles:492 : i=0 w=1 2017-02-17 15:58:36.127+0000: 18505: info : virObjectRef:296 : OBJECT_REF: obj=0x563a2a7f7fa0 2017-02-17 15:58:36.127+0000: 18506: info : virEventPollDispatchHandles:506 : EVENT_POLL_DISPATCH_HANDLE: watch=1 events=1 2017-02-17 15:58:36.127+0000: 18505: info : virObjectRef:296 : OBJECT_REF: obj=0x563a2a7f7b60 2017-02-17 15:58:36.127+0000: 18506: debug : virEventPollCleanupTimeouts:525 : Cleanup 1 2017-02-17 15:58:36.127+0000: 18505: info : virObjectRef:296 : OBJECT_REF: obj=0x563a2a7f7910 2017-02-17 15:58:36.127+0000: 18506: debug : virEventPollCleanupHandles:574 : Cleanup 2 2017-02-17 15:58:36.127+0000: 18505: debug : doRemoteOpen:1170 : Trying authentication 2017-02-17 15:58:36.127+0000: 18506: debug : virEventRunDefaultImpl:311 : running default event implementation 2017-02-17 15:58:36.127+0000: 18505: debug : virNetMessageNew:46 : msg=0x563a2a7fa470 tracked=0 2017-02-17 15:58:36.127+0000: 18506: debug : virEventPollCleanupTimeouts:525 : Cleanup 1 2017-02-17 15:58:36.127+0000: 18506: debug : virEventPollCleanupHandles:574 : Cleanup 2 2017-02-17 15:58:36.127+0000: 18506: debug : virEventPollMakePollFDs:401 : Prepare n=0 w=1, f=3 e=1 d=0 2017-02-17 15:58:36.127+0000: 18505: debug : virNetMessageEncodePayload:386 : Encode length as 28 2017-02-17 15:58:36.127+0000: 18506: debug : virEventPollMakePollFDs:401 : Prepare n=1 w=2, f=5 e=1 d=0 2017-02-17 15:58:36.127+0000: 18505: info : virNetClientSendInternal:2104 : RPC_CLIENT_MSG_TX_QUEUE: client=0x563a2a7f7d80 len=28 prog=536903814 vers=1 proc=66 type=0 status=0 serial=0 2017-02-17 15:58:36.127+0000: 18506: debug : virEventPollCalculateTimeout:338 : Calculate expiry of 1 timers 2017-02-17 15:58:36.127+0000: 18505: debug : virNetClientCallNew:2057 : New call 0x563a2a7f7340: msg=0x563a2a7fa470, expectReply=1, nonBlock=0 2017-02-17 15:58:36.127+0000: 18506: debug : virEventPollCalculateTimeout:371 : No timeout is pending 2017-02-17 15:58:36.127+0000: 18505: debug : virNetClientIO:1866 : Outgoing message prog=536903814 version=1 serial=0 proc=66 type=0 length=28 dispatch=(nil) 2017-02-17 15:58:36.127+0000: 18506: info : virEventPollRunOnce:640 : EVENT_POLL_RUN: nhandles=2 timeout=-1 2017-02-17 15:58:36.127+0000: 18505: debug : virNetClientIO:1925 : We have the buck head=0x563a2a7f7340 call=0x563a2a7f7340 2017-02-17 15:58:36.127+0000: 18505: info : virEventPollUpdateHandle:152 : EVENT_POLL_UPDATE_HANDLE: watch=2 events=0 2017-02-17 15:58:36.127+0000: 18505: debug : virEventPollInterruptLocked:726 : Interrupting 2017-02-17 15:58:36.127+0000: 18506: debug : virEventPollRunOnce:650 : Poll got 1 event(s) 2017-02-17 15:58:36.127+0000: 18506: debug : virEventPollDispatchTimeouts:432 : Dispatch 1 2017-02-17 15:58:36.127+0000: 18506: debug : virEventPollDispatchHandles:478 : Dispatch 2 2017-02-17 15:58:36.127+0000: 18506: debug : virEventPollDispatchHandles:492 : i=0 w=1 2017-02-17 15:58:36.127+0000: 18506: info : virEventPollDispatchHandles:506 : EVENT_POLL_DISPATCH_HANDLE: watch=1 events=1 2017-02-17 15:58:36.127+0000: 18506: debug : virEventPollCleanupTimeouts:525 : Cleanup 1 2017-02-17 15:58:36.127+0000: 18506: debug : virEventPollCleanupHandles:574 : Cleanup 2 2017-02-17 15:58:36.127+0000: 18506: debug : virEventRunDefaultImpl:311 : running default event implementation 2017-02-17 15:58:36.127+0000: 18506: debug : virEventPollCleanupTimeouts:525 : Cleanup 1 2017-02-17 15:58:36.127+0000: 18506: debug : virEventPollCleanupHandles:574 : Cleanup 2 2017-02-17 15:58:36.127+0000: 18506: debug : virEventPollMakePollFDs:401 : Prepare n=0 w=1, f=3 e=1 d=0 2017-02-17 15:58:36.127+0000: 18506: debug : virEventPollMakePollFDs:401 : Prepare n=1 w=2, f=5 e=0 d=0 2017-02-17 15:58:36.128+0000: 18506: debug : virEventPollCalculateTimeout:338 : Calculate expiry of 1 timers 2017-02-17 15:58:36.128+0000: 18506: debug : virEventPollCalculateTimeout:371 : No timeout is pending 2017-02-17 15:58:36.128+0000: 18506: info : virEventPollRunOnce:640 : EVENT_POLL_RUN: nhandles=1 timeout=-1 ^C --
-- Yun-Chih Chen 陳耘志 Network/Workstation Assistant Dept. of Computer Science and Information Engineering National Taiwan University Tel: +886-2-33664888 ext. 217/204 Email: ta217@xxxxxxxxxxxxxxx Website: http://wslab.csie.ntu.edu.tw/ |
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