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Bug 927620

Summary: Destroy guest with --gracefull get unknown error
Product: Red Hat Enterprise Linux 7 Reporter: Luwen Su <lsu>
Component: libvirtAssignee: Jiri Denemark <jdenemar>
Status: CLOSED CURRENTRELEASE QA Contact: Virtualization Bugs <virt-bugs>
Severity: medium Docs Contact:
Priority: medium    
Version: 7.0CC: acathrow, cwei, dallan, dyuan, gren, jiahu, mzhan
Target Milestone: rc   
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: libvirt-1.0.6-1.el7 Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2014-06-13 11:44:28 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:

Description Luwen Su 2013-03-26 11:02:58 UTC
Description of problem:
start a guest , then #kill -STOP `pidof qemu-kvm` ; virsh destroy $guest --graceful
will get "An error occurred, but the cause is unknown" ,
not "operation failed: failed to kill qemu process with SIGTERM" in rhel6

Version-Release number of selected component (if applicable):
libvirt-1.0.3-1.el7.x86_64
qemu-kvm-1.4.0-1.el7.x86_64
kernel-3.7.0-0.36.el7.x86_64

How reproducible:
100%

1.Prepare a running guest , then
#kill -STOP `pidof qemu-kvm`
#virsh destroy $guest --graceful
error: Failed to destroy domain rhel6
error: An error occurred, but the cause is unknown

2.Then
#virsh destroy $guest
libvirtd.log get
Mar 22 14:10:07 localhost.localdomain libvirtd[26280]: End of file while reading data: Input/output error
Mar 22 14:10:11 localhost.localdomain libvirtd[26280]: internal error End of file from monitor


Actual result:
Get unknown error

Expected result:
Should be clear like rhel6:
error: Failed to destroy domain test
error: operation failed: failed to kill qemu process with SIGTERM

Comment 2 Gunannan Ren 2013-05-17 09:30:48 UTC
proposed patch sent
https://www.redhat.com/archives/libvir-list/2013-May/msg01299.html

Comment 3 Gunannan Ren 2013-05-20 09:40:43 UTC
commit 6459af6a434e8b363c0b15d8bc0f9be535bd278f upstream fixed this bug.

With --graceful, SIGTERM always is emitted to kill driver
process, but it won't success till burning out waiting time
in case of process being stopped.
But domain destroy without --graceful can work, SIGKILL will
be emitted to the stopped process after 10 secs which always
kills a process even one that is currently stopped.

Comment 4 Gunannan Ren 2013-05-22 13:06:30 UTC
Jiri, I am going to set this bug to POST based on comment 3.

Comment 5 Hu Jianwei 2013-06-05 03:20:35 UTC
Can reproduce the bug in below version:
libvirt-1.0.5-2.el7.x86_64
qemu-kvm-1.5.0-2.el7.x86_64
kernel-3.9.0-0.55.el7.x86_64

But can not reproduce in below version:
libvirt-1.0.6-1.el7.x86_64
qemu-kvm-1.5.0-2.el7.x86_64
kernel-3.9.0-0.55.el7.x86_64


1.[root@hujianweitest ~]# virsh start rhel7
Domain rhel7 started

2.[root@hujianweitest ~]# virsh list --all
 Id    Name                           State
----------------------------------------------------
 5     rhel7                          running
 -     r7_m                           shut off
 -     rhel6_local                    shut off

3. Kill the process
[root@hujianweitest ~]# 
[root@hujianweitest ~]# kill -STOP `pidof qemu-kvm`
[root@hujianweitest ~]# 

4.Destroy the domain
[root@hujianweitest ~]# virsh destroy rhel7 --graceful
error: Failed to destroy domain rhel7
error: Failed to terminate process 11063 with SIGTERM: Device or resource busy

We can get expected results, setting to verified.

Comment 6 Ludek Smid 2014-06-13 11:44:28 UTC
This request was resolved in Red Hat Enterprise Linux 7.0.

Contact your manager or support representative in case you have further questions about the request.