Bug 968896 - virt-manager will hang when shutdown lxc guest after open the console
virt-manager will hang when shutdown lxc guest after open the console
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: virt-manager (Show other bugs)
Unspecified Unspecified
medium Severity medium
: rc
: ---
Assigned To: Martin Kletzander
Virtualization Bugs
Depends On:
  Show dependency treegraph
Reported: 2013-05-30 04:49 EDT by tingting zheng
Modified: 2014-06-17 20:00 EDT (History)
6 users (show)

See Also:
Fixed In Version: virt-manager-0.10.0-1.el7
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Last Closed: 2014-06-13 05:39:54 EDT
Type: Bug
Regression: ---
Mount Type: ---
Documentation: ---
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

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Description tingting zheng 2013-05-30 04:49:30 EDT
virt-manager will hang when shutdown lxc guest after open the console


How reproducible:

Steps to Reproduce:
1.Make sure you  have a lxc guest,Application container is ok.

2.Start the guest,open the graphics console.

3.Force off the guest,then virt-manager will hang forever.

4.If you restart virt-manager and not open the console,just Force off the guest,it can be shutdown successfully.

Actual results:
As describes.

Expected results:
virt-manager will not hang when shutdown lxc guest.

Additional info:
From libvirt,lxc guest can be boot and destroy successfully.
# virsh -c lxc:/// define test.xml
Domain test defined from test.xml

# virsh -c lxc:/// start test
Domain test started

# virsh -c lxc:/// destroy test
Domain test destroyed

From virt-manager --debug:
2013-05-30 15:15:16,566 (create:1921): Install completed
2013-05-30 15:15:16,694 (create:161): Closing new vm wizard
2013-05-30 15:15:16,879 (serialcon:404): Serial console '0' path changed to /dev/pts/3
2013-05-30 15:15:16,880 (serialcon:194): Opening console stream for dev=<virtinst.VirtualCharDevice.VirtualCharDevice object at 0x3085950> alias=console0
2013-05-30 15:15:16,887 (details:570): Showing VM details: <vmmDomain object at 0x3081aa0 (virtManager+domain+vmmDomain at 0x7f553c003a60)>
2013-05-30 15:15:17,058 (engine:320): window counter incremented to 2
2013-05-30 15:15:17,059 (console:1114): No graphics configured for guest
2013-05-30 15:15:18,537 (details:587): Closing VM details: <vmmDomain object at 0x3081aa0 (virtManager+domain+vmmDomain at 0x7f553c003a60)>
2013-05-30 15:15:18,537 (engine:324): window counter decremented to 1
2013-05-30 15:15:23,952 (engine:850): Destroying vm 'test'
2013-05-30 15:15:23,954 (asyncjob:193): Creating async job for function cb=<function tmpcb at 0x3578500>
Comment 2 Martin Kletzander 2013-06-03 11:56:09 EDT
Could you set your ulimit for coredumps and kill the process with C-\ or SIGSEGV and post the coredump here?  In case the GUI freezes as well, you can try running 'python -m trace --trace /usr/share/virt-manager/virt-manager.py --debug &>virt-manager.huge.log', kill it when it freezes, compress the log and post it here as well, but there is high possibility that the log will have so much graphic events from the X server that it will make it impossible to find where the code freezes.
Comment 4 Martin Kletzander 2013-06-11 03:34:53 EDT
Patch proposed upstream:

Comment 5 Martin Kletzander 2013-06-12 05:19:00 EDT
Moving to POST:

commit 77fb38e60207874d4293448b64945c3d4ec11c30
Author: Martin Kletzander <mkletzan@redhat.com>
Date:   Tue Jun 11 09:32:13 2013 +0200

    serialcon: Close the console at the end of the stream
Comment 6 tingting zheng 2013-07-17 04:24:00 EDT
Tested with:

The issue didn't exist,move the bug to VERIFIED.
Comment 7 Ludek Smid 2014-06-13 05:39:54 EDT
This request was resolved in Red Hat Enterprise Linux 7.0.

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