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Bug 624403

Summary: [vdsm] [libvirt] unexpected signal message produced (log) on the various operations
Product: Red Hat Enterprise Linux 6 Reporter: Haim <hateya>
Component: libvirtAssignee: Osier Yang <jyang>
Status: CLOSED ERRATA QA Contact: Virtualization Bugs <virt-bugs>
Severity: medium Docs Contact:
Priority: low    
Version: 6.1CC: berrange, ccui, dallan, danken, dyuan, eblake, hateya, jdenemar, kxiong, mgoldboi, xen-maint, yeylon, yimwang, ykaul
Target Milestone: rcKeywords: RHELNAK
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: libvirt-0.8.6-1.el6 Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2011-05-19 13:20:18 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:

Description Haim 2010-08-16 10:28:01 UTC
Description of problem:

watching libvirt log, I see lots of messaged like the following: 

3:22:29.840: info : qemudDispatchSignalEvent:397 : Received unexpected signal 

it appears after I open vnc connection to the guest machine, or, start new guest.
when I start new guest, I see it printed 4 times: 

13:26:07.045: info : qemudDispatchSignalEvent:397 : Received unexpected signal 17                    │
Au│13:26:07.146: info : qemudDispatchSignalEvent:397 : Received unexpected signal 17                    │ec
to│13:26:07.170: info : qemudDispatchSignalEvent:397 : Received unexpected signal 17                    │
Th│13:26:07.279: info : qemudDispatchSignalEvent:397 : Received unexpected signal 17      


is it a problem ? why does is mean ? why its presented as unexpended ? 


1) start vm 
or
1) open vnc console to vm 

2.6.32-59.1.el6.x86_64
libvirt-0.8.1-23.el6.x86_64
vdsm-4.9-12.3.x86_64
device-mapper-multipath-0.4.9-25.el6.x86_64
lvm2-2.02.72-4.el6.x86_64
qemu-kvm-0.12.1.2-2.109.el6.x86_64

Comment 2 RHEL Program Management 2010-08-16 10:58:37 UTC
This issue has been proposed when we are only considering blocker
issues in the current Red Hat Enterprise Linux release.

** If you would still like this issue considered for the current
release, ask your support representative to file as a blocker on
your behalf. Otherwise ask that it be considered for the next
Red Hat Enterprise Linux release. **

Comment 3 Daniel Berrangé 2010-08-16 11:09:03 UTC
This is harmless, just a SIGCHLD event. We should just kill the warning message. Not 6.0 material

Comment 4 Daniel Berrangé 2010-11-23 11:01:31 UTC
Patch upstream

http://www.redhat.com/archives/libvir-list/2010-November/msg01020.html

Comment 5 Jiri Denemark 2010-12-23 23:48:07 UTC
Fixed by a rebase to libvirt-0.8.6

Comment 8 Cui Chun 2011-02-10 03:18:01 UTC
Rechecked it on the following test environment according to comment 6. No any "Received unexpected signal" can be found again.

It is passed.

Test environment:
libvirt-0.8.7-5.el6
qemu-kvm-0.12.1.2-2.144.el6
kernel-2.6.32-94.el6

Comment 9 Cui Chun 2011-02-21 05:22:22 UTC
Hi  Jiri Denemark,

Could you please make sure if it is valid for this bug verification in comment 6?   

Thanks.

Comment 10 Jiri Denemark 2011-02-21 11:23:39 UTC
I'm not sure what you want me to confirm. The bug is about removing "Received unexpected signal". If you don't see when starting a domain, than it's fixed.

Comment 11 Cui Chun 2011-02-22 02:06:27 UTC
(In reply to comment #10)
> I'm not sure what you want me to confirm. The bug is about removing "Received
> unexpected signal". If you don't see when starting a domain, than it's fixed.

Verified this issue in plain libvirt and just want to know if it is necessary to be verified again in VDSM environment. 
Don't see any information like description in plain libvirt.

Comment 14 errata-xmlrpc 2011-05-19 13:20:18 UTC
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on therefore solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.

http://rhn.redhat.com/errata/RHBA-2011-0596.html