Re: [libvirt-users] libvirt hang on domain attemp to create domain

В письме от Среда, 19-июн-2013 09:35:27 пользователь Michal Privoznik написал: > On 18.06.2013 22:21, Александр wrote: >> В письме от Вторник, 18-июн-2013 12:10:41 пользователь Michal Privoznik >> >> написал: >>> On 18.06.2013 07:14, Александр wrote: >>>> good day, i am trying to create domain via virDomainDefineXML. and my >>>> program hanging, also i failed to caonnect to libvirt daemon with >>>> virt-manager after this, only killing libvirtd via SIGKILL and >>>> restarting >>>> it solveing hang (i mean after restart i able to connect with >>>> virt-manager), i using following domain xml >>>> >>>> <?xml version="1.0" encoding="UTF-8"?> >>>> <domain type="kvm"> >>>> >>>> <tittle>Automatically created domain with default >>>> configuration</tittle> >>>> <name>vm1</name> >>>> <description>no description</description> >>>> <os> >>>> >>>> <type>hvm</type> >>>> <boot dev="cdrom"/> >>>> <boot dev="hd"/> >>>> >>>> </os> >>>> <vcpu>1</vcpu> >>>> <memory unit="MB">512</memory> >>>> <cpu model="host-model"> >>>> >>>> <topology sockets="1" cores="1" threads="1"/> >>>> >>>> </cpu> >>>> <clock offset="localtime"/> >>>> <devices> >>>> >>>> <graphics type="vnc" autoport="yes" password="admin"/> >>>> <channel type="unix"> >>>> >>>> <source mode="bind" path="/var/run/vm1.sock"/> >>>> <target type="virtio" name="org.guest_agent.0"/> >>>> >>>> </channel> >>>> >>>> </devices> >>>> >>>> </domain> >>>> >>>> i have this calls on stack >>>> >>>> 0 0x00007ffff48c1750 __poll_nocancel >>>> 1 0x00007ffff649e5ca virNetClientIOEventLoop >>> >>> This is just probably a client waiting for the corresponding libvirtd to >>> provide a reply message. Are you able to get libvirtd debug logs so we >>> can see what's going on? >>> >>> http://wiki.libvirt.org/page/DebugLogs >>> >>> BTW, what's the libvirt version you are running? >>> >>> Michal >>> >>>> 2 0x00007ffff649ed96 virNetClientSendInternal >>>> 3 0x00007ffff64a0443 virNetClientSendWithReply >>>> 4 0x00007ffff64a0daa virNetClientProgramCall >>>> 5 0x00007ffff6478566 callFull.isra.2 >>>> 6 0x00007ffff6487fa2 remoteDomainDefineXML >>>> 7 0x00007ffff6449d2f virDomainDefineXML >>>> 8 0x0000000000426941 virt_domain::create >>>> /home/sss/install/git/work/avirt/vm_pool/vm_pool/libvirt.cpp 295 >>>> 9 0x000000000040c1a9 main >>>> /home/sss/install/git/work/avirt/vm_pool/vm_pool/main.cpp 40 >>>> >>>> what i am doing wrong ? >>>> >>>> >>>> >>>> _______________________________________________ >>>> libvirt-users mailing list >>>> libvirt-users(a)redhat.com >>>> https://www.redhat.com/mailman/listinfo/libvirt-users >> >> i have libvirt version 1.0.6, debug log in attachment. > > Yuck, this is 1.0.6; Well, from the logs it seems like the daemon is > stuck. Can you attach to the libvirtd while it's being stuck and run 't > a a bt' and post the result? I wonder if we have a deadlock somewhere. > > Michal if i correctly understand you, you need debugger backtrace after libvirtd stuck ?, if so, here is bt from gdb

(gdb) bt #0 0x00007f00c1ae876d in poll () from /lib64/libc.so.6 #1 0x00007f00c203cfcb in virEventPollRunOnce () from /usr/lib64/libvirt.so.0 #2 0x00007f00c203ba4d in virEventRunDefaultImpl () from /usr/lib64/libvirt.so.0 #3 0x00007f00c214a5cd in virNetServerRun () from /usr/lib64/libvirt.so.0 #4 0x00007f00c2aea08a in main ()