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Bug 924624

Summary: Stuck kernel in virtual machine after waking the host machine (in sched_exec)
Product: Red Hat Enterprise Linux 6 Reporter: Jan Synacek <jsynacek>
Component: kernelAssignee: Red Hat Kernel Manager <kernel-mgr>
Status: CLOSED WONTFIX QA Contact: Red Hat Kernel QE team <kernel-qe>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 6.4   
Target Milestone: rc   
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2017-12-06 11:16:41 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
/var/log/messages with the stacktraces none

Description Jan Synacek 2013-03-22 09:01:18 UTC
Created attachment 714384 [details]
/var/log/messages with the stacktraces

Description of problem:
I usually suspend my computer (the host) in the afternoon and wake it in the morning. After waking my computer, the rhel-6 virtual machine (the guest) is stuck. The system seems to be somewhat running, but nonresponsive. I can ssh to the virtual machine, enter my password, but then its stuck, just before the bash prompt should appear.

This happens only with the rhel-6 virtual machine. This does NOT happen when I suspend the host machine and wake it after a while (let's say one minute).


Version-Release number of selected component (if applicable):
  The guest (rhel-6.4):
    kernel-2.6.32-358.el6.x86_64

  The host (fedora 18):
    libvirt-0.10.2.3-1.fc18.x86_64
    qemu-1.2.2-6.fc18.x86_64
    kernel-3.8.3-201.fc18.x86_64


How reproducible:
always


Steps to Reproduce:
1. Have a fedora machine running a rhel-6 virtual machine, suspend it
2. Let sleep over night (actually, I'm not sure how long is enough, but whole night does the trick)
3. Wake the host machine
4. Try to ssh into the guest machine, observe how it's stuck
5. Force power off of the guest, start again, see kernel stacktraces in /var/log/messages
  

Actual results:
The system is stuck.


Expected results:
The system is running as expected.

Comment 2 RHEL Program Management 2013-10-14 04:02:42 UTC
This request was not resolved in time for the current release.
Red Hat invites you to ask your support representative to
propose this request, if still desired, for consideration in
the next release of Red Hat Enterprise Linux.

Comment 3 Jan Kurik 2017-12-06 11:16:41 UTC
Red Hat Enterprise Linux 6 is in the Production 3 Phase. During the Production 3 Phase, Critical impact Security Advisories (RHSAs) and selected Urgent Priority Bug Fix Advisories (RHBAs) may be released as they become available.

The official life cycle policy can be reviewed here:

http://redhat.com/rhel/lifecycle

This issue does not meet the inclusion criteria for the Production 3 Phase and will be marked as CLOSED/WONTFIX. If this remains a critical requirement, please contact Red Hat Customer Support to request a re-evaluation of the issue, citing a clear business justification. Note that a strong business justification will be required for re-evaluation. Red Hat Customer Support can be contacted via the Red Hat Customer Portal at the following URL:

https://access.redhat.com/