thr3ads.net - libvirt users - Re: [libvirt-users] QemuDomainObjEndJob called when libvirtd is started and libvirt insists qemu is using the wrong disk source. [Apr 2015]

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Matthew Schumacher

2015-Apr-21 00:45 UTC

[libvirt-users] QemuDomainObjEndJob called when libvirtd is started and libvirt insists qemu is using the wrong disk source.

List,

I was under the impression that I could restart libvirtd without it
destroying my VMs, but am not finding that to be true.  When I killall
libvirtd then my VM's keep running, but then when I start libvirtd it
calls qemuDomainObjEndJob:1542 : Stopping job: modify (async=none
vm=0x7fb8cc0d8510 name=test) and my domain gets whacked.

Any way to disable this behavior?

Also, while I'm at it, due to issues with snapshotting, I ended up with
two domains where libvirt insists the disk source is incorrect which
causes many things to break like this:

root@wasvirt1:/etc/libvirt# virsh domblklist wasdev
Target     Source
------------------------------------------------
vda        /glustervol1/vm/wasdev/wasdev.reboot
hdc        /dev/sr0

Yet:

root@wasvirt1:/etc/libvirt# lsof | grep wasdev
2235    /usr/bin/qemu-system-x86_64     /var/log/libvirt/qemu/wasdev.log
2235    /usr/bin/qemu-system-x86_64     /var/log/libvirt/qemu/wasdev.log
2235    /usr/bin/qemu-system-x86_64     /glustervol1/vm/wasdev/wasdev.qcow2

The reason is because a blockcommit --active --pivot doesn't work, I
blockjob --abort, then try again, it works the second time, but then the
disk is wrong.

Help would be greatly appreciated.

Thanks,
schu

Laine Stump

2015-Apr-21 01:12 UTC

head link

Re: [libvirt-users] QemuDomainObjEndJob called when libvirtd is started and libvirt insists qemu is using the wrong disk source.

On 04/20/2015 08:45 PM, Matthew Schumacher wrote:> List,
>
> I was under the impression that I could restart libvirtd without it
> destroying my VMs, but am not finding that to be true. 
If not, then something is wrong.
>  When I killall
> libvirtd then my VM's keep running, but then when I start libvirtd it
> calls qemuDomainObjEndJob:1542 : Stopping job: modify (async=none
> vm=0x7fb8cc0d8510 name=test) 
That message doesn't indicate that a domain is being destroyed, just
that libvirt performed some operation on the domain that modified it in
some way.
> and my domain gets whacked.
If your domain is terminated, there should be a libvirtd error log (at
least one saying that it got end of file from the monitor, meaning that
the qemu process itself terminated unexpectedly. In that case there
should be some indication of qemu's problem at the end of
/var/log/libvirt/qemu/test.log).
>
> Any way to disable this behavior?
Whatever the bug is causing this to happen, fix it :-)
>
> Also, while I'm at it, due to issues with snapshotting, I ended up with
> two domains where libvirt insists the disk source is incorrect which
> causes many things to break like this:
>
> root@wasvirt1:/etc/libvirt# virsh domblklist wasdev
> Target     Source
> ------------------------------------------------
> vda        /glustervol1/vm/wasdev/wasdev.reboot
> hdc        /dev/sr0
>
> Yet:
>
> root@wasvirt1:/etc/libvirt# lsof | grep wasdev
> 2235    /usr/bin/qemu-system-x86_64     /var/log/libvirt/qemu/wasdev.log
> 2235    /usr/bin/qemu-system-x86_64     /var/log/libvirt/qemu/wasdev.log
> 2235    /usr/bin/qemu-system-x86_64     /glustervol1/vm/wasdev/wasdev.qcow2
>
> The reason is because a blockcommit --active --pivot doesn't work, I
> blockjob --abort, then try again, it works the second time, but then the
> disk is wrong.
>
> Help would be greatly appreciated.
>
> Thanks,
> schu
>
> _______________________________________________
> libvirt-users mailing list
> libvirt-users@redhat.com
> https://www.redhat.com/mailman/listinfo/libvirt-users
>
>

Matthew Schumacher

2015-Apr-21 01:28 UTC

head link

Re: [libvirt-users] QemuDomainObjEndJob called when libvirtd is started and libvirt insists qemu is using the wrong disk source.

On 04/20/2015 05:12 PM, Laine Stump wrote:> On 04/20/2015 08:45 PM, Matthew Schumacher wrote:
>> List,
>>
>> I was under the impression that I could restart libvirtd without it
>> destroying my VMs, but am not finding that to be true. 
> If not, then something is wrong.
>
Here are the logs from the vm:

2015-04-20 23:50:20.387+0000: shutting down
qemu: terminating on signal 15 from pid 25298

And part of the logs from libvirt when I started it.  Does this help at all?

2015-04-20 23:50:20.387+0000: 25373: error :
virStorageFileBackendFileReadHeader:1443 : Failed to open file
'/dev/sr0': No medium found
2015-04-20 23:50:20.387+0000: 25373: debug :
virStorageFileReadHeader:2714 : read of storage header 0x7fb8cc0d75f0:
ret=-1            
2015-04-20 23:50:20.387+0000: 25373: debug :
virStorageFileBackendFileDeinit:1369 : deinitializing FS storage file
0x7fb8cc0d75f0 (block:/dev/sr0)                   
2015-04-20 23:50:20.387+0000: 25373: info : virObjectUnref:259 :
OBJECT_UNREF:
obj=0x7fb8cc0155b0                                                
2015-04-20 23:50:20.387+0000: 25373: debug : qemuDomainObjEndJob:1542 :
Stopping job: modify (async=none vm=0x7fb8cc0d8510 name=test)            
2015-04-20 23:50:20.387+0000: 25373: info : virObjectRef:296 :
OBJECT_REF:
obj=0x7fb8cc0155b0                                                    
2015-04-20 23:50:20.387+0000: 25373: debug : qemuProcessStop:5089 :
Shutting down vm=0x7fb8cc0d8510 name=test id=6 pid=25245
flags=0             
2015-04-20 23:50:20.387+0000: 25373: info : virObjectRef:296 :
OBJECT_REF:
obj=0x7fb8cc0155b0                                                    
2015-04-20 23:50:20.387+0000: 25373: info : virObjectUnref:259 :
OBJECT_UNREF:
obj=0x7fb8cc0155b0                                                
2015-04-20 23:50:20.387+0000: 25373: debug : virFileClose:102 : Closed
fd 19                                                                     
2015-04-20 23:50:20.387+0000: 25373: info : qemuMonitorClose:904 :
QEMU_MONITOR_CLOSE: mon=0x7fb8d0000bd0
refs=2                                 
2015-04-20 23:50:20.387+0000: 25373: info : virEventPollRemoveHandle:186
: EVENT_POLL_REMOVE_HANDLE:
watch=10                                         
2015-04-20 23:50:20.387+0000: 25373: debug :
virEventPollRemoveHandle:199 : mark delete 9
18                                                     
2015-04-20 23:50:20.387+0000: 25373: debug :
virEventPollInterruptLocked:726 :
Interrupting                                                      
2015-04-20 23:50:20.387+0000: 25373: debug : virFileClose:102 : Closed
fd 18                                                                     
2015-04-20 23:50:20.387+0000: 25373: info : virObjectUnref:259 :
OBJECT_UNREF:
obj=0x7fb8d0000bd0                                                
2015-04-20 23:50:20.387+0000: 25373: debug : qemuProcessKill:5047 :
vm=0x7fb8cc0d8510 name=test pid=25245
flags=5                                
2015-04-20 23:50:20.387+0000: 25373: debug : virProcessKillPainfully:352
: vpid=25245 force=1                                                    
2015-04-20 23:50:20.387+0000: 25298: debug : virEventPollRunOnce:650 :
Poll got 2 event(s)                                                       
2015-04-20 23:50:20.387+0000: 25298: debug :
virEventPollDispatchTimeouts:432 : Dispatch
0                                                       
2015-04-20 23:50:20.387+0000: 25298: debug :
virEventPollDispatchHandles:478 : Dispatch
8                                                        
2015-04-20 23:50:20.387+0000: 25298: debug :
virEventPollDispatchHandles:492 : i=0
w=1                                                           
2015-04-20 23:50:20.387+0000: 25298: info :
virEventPollDispatchHandles:506 : EVENT_POLL_DISPATCH_HANDLE: watch=1
events=1                       
2015-04-20 23:50:20.387+0000: 25298: debug :
virEventPollDispatchHandles:492 : i=1
w=2                                                           
2015-04-20 23:50:20.387+0000: 25298: debug :
virEventPollDispatchHandles:492 : i=4
w=5                                                           
2015-04-20 23:50:20.387+0000: 25298: debug :
virEventPollDispatchHandles:492 : i=5
w=6                                                           
2015-04-20 23:50:20.387+0000: 25298: debug :
virEventPollDispatchHandles:492 : i=7
w=8                                              
2015-04-20 23:50:20.387+0000: 25298: debug :
virEventPollDispatchHandles:492 : i=8
w=9                                              
2015-04-20 23:50:20.387+0000: 25298: debug :
virEventPollDispatchHandles:492 : i=9
w=10                                            
2015-04-20 23:50:20.387+0000: 25298: debug :
virEventPollDispatchHandles:495 : Skip deleted n=9 w=10
f=18                          
2015-04-20 23:50:20.387+0000: 25298: debug :
virEventPollDispatchHandles:492 : i=10
w=11                                   
2015-04-20 23:50:20.387+0000: 25298: debug :
virEventPollCleanupTimeouts:525 : Cleanup
0                                 
2015-04-20 23:50:20.387+0000: 25298: debug :
virEventPollCleanupTimeouts:561 : Found 0 out of 0 timeout slots used,
releasing 0
2015-04-20 23:50:20.387+0000: 25298: debug :
virEventPollCleanupHandles:574 : Cleanup
11                                                                   
2015-04-20 23:50:20.387+0000: 25298: info :
virEventPollCleanupHandles:587 : EVENT_POLL_PURGE_HANDLE:
watch=10                                                                     

2015-04-20 23:50:20.387+0000: 25298: info : virObjectUnref:259 :
OBJECT_UNREF: obj=0x7fb8d0000bd0                             
2015-04-20 23:50:20.387+0000: 25298: info : virObjectUnref:261 :
OBJECT_DISPOSE: obj=0x7fb8d0000bd0                           
2015-04-20 23:50:20.387+0000: 25298: debug : qemuMonitorDispose:259 :
mon=0x7fb8d0000bd0

2015-04-20 23:50:20.387+0000: 25298: info : virObjectUnref:259 :
OBJECT_UNREF:
obj=0x7fb8cc0d8510

2015-04-20 23:50:20.387+0000: 25298: debug : virEventRunDefaultImpl:305
: running default event implementation                
2015-04-20 23:50:20.387+0000: 25298: debug :
virEventPollCleanupTimeouts:525 : Cleanup
0                                      
2015-04-20 23:50:20.387+0000: 25298: debug :
virEventPollCleanupTimeouts:561 : Found 0 out of 0 timeout slots used,
releasing 0                                      
2015-04-20 23:50:20.387+0000: 25298: debug :
virEventPollCleanupHandles:574 : Cleanup 10
2015-04-20 23:50:20.387+0000: 25298: debug : virEventPollMakePollFDs:400
: Prepare n=0 w=1, f=7 e=1 d=0                                          
2015-04-20 23:50:20.387+0000: 25298: debug : virEventPollMakePollFDs:400
: Prepare n=1 w=2, f=9 e=1 d=0                                          
2015-04-20 23:50:20.387+0000: 25298: debug : virEventPollMakePollFDs:400
: Prepare n=2 w=3, f=11 e=0 d=0                                         
2015-04-20 23:50:20.387+0000: 25298: debug : virEventPollMakePollFDs:400
: Prepare n=3 w=4, f=12 e=0 d=0                                         
2015-04-20 23:50:20.387+0000: 25298: debug : virEventPollMakePollFDs:400
: Prepare n=4 w=5, f=6 e=1 d=0                                          
2015-04-20 23:50:20.387+0000: 25298: debug : virEventPollMakePollFDs:400
: Prepare n=5 w=6, f=13 e=1 d=0                                         
2015-04-20 23:50:20.387+0000: 25298: debug : virEventPollMakePollFDs:400
: Prepare n=6 w=7, f=14 e=0 d=0                                         
2015-04-20 23:50:20.387+0000: 25298: debug : virEventPollMakePollFDs:400
: Prepare n=7 w=8, f=14 e=1 d=0                                         
2015-04-20 23:50:20.387+0000: 25298: debug : virEventPollMakePollFDs:400
: Prepare n=8 w=9, f=16 e=1 d=0                                         
2015-04-20 23:50:20.387+0000: 25298: debug : virEventPollMakePollFDs:400
: Prepare n=9 w=11, f=20 e=1 d=0                                        
2015-04-20 23:50:20.387+0000: 25298: debug :
virEventPollCalculateTimeout:338 : Calculate expiry of 0
timers                        
2015-04-20 23:50:20.387+0000: 25298: debug :
virEventPollCalculateTimeout:370 : No timeout is
pending                               
2015-04-20 23:50:20.387+0000: 25298: info : virEventPollRunOnce:640 :
EVENT_POLL_RUN: nhandles=7 timeout=-1

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