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Bug 988292

Summary: [qemu-kvm] cannot run a VM which is in 'pause' state [RHEV]
Product: Red Hat Enterprise Linux 6 Reporter: Elad <ebenahar>
Component: qemu-kvmAssignee: Virtualization Maintenance <virt-maint>
Status: CLOSED WORKSFORME QA Contact: Virtualization Bugs <virt-bugs>
Severity: high Docs Contact:
Priority: high    
Version: 6.5CC: acanan, acathrow, bsarathy, chayang, ebenahar, hateya, juzhang, michen, mkenneth, qzhang, virt-maint
Target Milestone: rcKeywords: Regression
Target Release: ---   
Hardware: x86_64   
OS: Unspecified   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2013-09-24 19:03:46 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Attachments:
Description Flags
logs none

Description Elad 2013-07-25 09:13:37 UTC 
Created attachment 778146 [details]
logs

Description of problem:
When trying to run a VM which is in 'pause' state, the operation fails with this error on the machine's qemu log:

kvm: unhandled exit 80000021
kvm_run returned -22

libvirt.log:

2013-07-25 08:34:42.799+0000: 2476: error : qemuMonitorJSONCheckError:355 : internal error unable to execute QEMU command 'cont': Resetting the Virtual Machine is required


vdsm.log:

Thread-87607::ERROR::2013-07-25 11:33:57,055::BindingXMLRPC::989::vds::(wrapper) libvirt error
Traceback (most recent call last):
  File "/usr/share/vdsm/BindingXMLRPC.py", line 984, in wrapper
    res = f(*args, **kwargs)
  File "/usr/share/vdsm/BindingXMLRPC.py", line 227, in vmCont
    return vm.cont()
  File "/usr/share/vdsm/API.py", line 144, in cont
    return v.cont()
  File "/usr/share/vdsm/vm.py", line 2320, in cont
    self._underlyingCont()
  File "/usr/share/vdsm/vm.py", line 3377, in _underlyingCont
    self._dom.resume()
  File "/usr/share/vdsm/vm.py", line 824, in f
    ret = attr(*args, **kwargs)
  File "/usr/lib64/python2.6/site-packages/vdsm/libvirtconnection.py", line 76, in wrapper
    ret = f(*args, **kwargs)
  File "/usr/lib64/python2.6/site-packages/libvirt.py", line 1306, in resume
    if ret == -1: raise libvirtError ('virDomainResume() failed', dom=self)
libvirtError: internal error unable to execute QEMU command 'cont': Resetting the Virtual Machine is required



Version-Release number of selected component (if applicable):
rhevm-3.3.0-0.9.master.el6ev.noarch
vdsm-4.12.0-rc3.el6.x86_64
libvirt-0.10.2-18.el6_4.9.x86_64
qemu-kvm-rhev-0.12.1.2-2.355.el6_4.5.x86_64



How reproducible:
100%

Steps to Reproduce:
1. on a RHEV setup: have a data center (iscsi) with a vdsm hypervisor and 2 storage domain created from 2 different storage servers
2. run a VM on the host (with a disk located on the master storage domain)
3. block connectivity from host to the non master storage domain using iptables
4. when VM enters to 'pause' state, resume connectivity to storage, and activate the host again 
5. when host is active again, try to activate the VM


Actual results:
VM activating is failing, and user has to restart the VM

Expected results:
VM activating should work


Additional info: logs
Comment 3 Ademar Reis 2013-09-24 13:44:39 UTC 
According to comment #2, this bug should be closed as a duplicate of Bug 888767 or a duplicate of the new bug created: Bug 1011472. Is there anything you still want from us (qemu-kvm?)
Comment 4 Elad 2013-09-24 14:23:45 UTC 
(In reply to Ademar de Souza Reis Jr. from comment #3)
> According to comment #2, this bug should be closed as a duplicate of Bug
> 888767 or a duplicate of the new bug created: Bug 1011472. Is there anything
> you still want from us (qemu-kvm?)

According to bug 1011472, we cannot run vm from pause state. After deeper investigation, we concluded that it has nothing to do with our problem here. I'm removing the depends on flag.

Regarding to this bug issue, I checked the scenario with qemu-kvm-rhev-0.12.1.2-2.396.el6.x86_64 according to Chao's request and it does not seem to reproduce.
Comment 5 Ademar Reis 2013-09-24 19:03:46 UTC 
(In reply to Elad from comment #4)
> 
> Regarding to this bug issue, I checked the scenario with
> qemu-kvm-rhev-0.12.1.2-2.396.el6.x86_64 according to Chao's request and it
> does not seem to reproduce.

Closing then. Please reopen if there's anything pending from our side.