RHEL Engineering is moving the tracking of its product development work on RHEL 6 through RHEL 9 to Red Hat Jira (issues.redhat.com). If you're a Red Hat customer, please continue to file support cases via the Red Hat customer portal. If you're not, please head to the "RHEL project" in Red Hat Jira and file new tickets here. Individual Bugzilla bugs in the statuses "NEW", "ASSIGNED", and "POST" are being migrated throughout September 2023. Bugs of Red Hat partners with an assigned Engineering Partner Manager (EPM) are migrated in late September as per pre-agreed dates. Bugs against components "kernel", "kernel-rt", and "kpatch" are only migrated if still in "NEW" or "ASSIGNED". If you cannot log in to RH Jira, please consult article #7032570. That failing, please send an e-mail to the RH Jira admins at rh-issues@redhat.com to troubleshoot your issue as a user management inquiry. The email creates a ServiceNow ticket with Red Hat. Individual Bugzilla bugs that are migrated will be moved to status "CLOSED", resolution "MIGRATED", and set with "MigratedToJIRA" in "Keywords". The link to the successor Jira issue will be found under "Links", have a little "two-footprint" icon next to it, and direct you to the "RHEL project" in Red Hat Jira (issue links are of type "https://issues.redhat.com/browse/RHEL-XXXX", where "X" is a digit). This same link will be available in a blue banner at the top of the page informing you that that bug has been migrated.
Bug 795652 - Inappropriate __com.redhat_spice_migrate_info error handler causes qemu monitor hanging
Summary: Inappropriate __com.redhat_spice_migrate_info error handler causes qemu monit...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 6
Classification: Red Hat
Component: qemu-kvm
Version: 6.3
Hardware: Unspecified
OS: Unspecified
medium
medium
Target Milestone: rc
: ---
Assignee: Yonit Halperin
QA Contact: Virtualization Bugs
URL:
Whiteboard:
: 750439 (view as bug list)
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2012-02-21 07:12 UTC by Shaolong Hu
Modified: 2013-01-10 00:43 UTC (History)
11 users (show)

Fixed In Version: qemu-kvm-0.12.1.2-2.250.el6
Doc Type: Bug Fix
Doc Text:
Cause Wrong error report when the monitor command __com.redhat_spice_migrate_info is applied with bad parameters Consequence qemu monitor hangs Fix Fix the error reporting Result qemu monitor does not hang when the above monitor command is applied with bad parameters.
Clone Of:
Environment:
Last Closed: 2012-06-20 11:43:37 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2012:0746 0 normal SHIPPED_LIVE qemu-kvm bug fix and enhancement update 2012-06-19 19:31:48 UTC

Description Shaolong Hu 2012-02-21 07:12:56 UTC 
Description of problem:
------------------------
__com.redhat_spice_migrate_info fails to deal with invalid parameter, cause qemu monitor hangs.


Version-Release number of selected component (if applicable):
--------------------------------------------------------------
qemu-kvm-0.12.1.2-2.232.el6.x86_64


How reproducible:
------------------
100%


Steps to Reproduce:
--------------------
1.boot guest with:
/usr/libexec/qemu-kvm -enable-kvm -M rhel6.3.0 -smp 4 -m 4G -name win2008r2 -uuid 3f2ea5cd-3d29-48ff-aab2-23df1b6ae213 -drive file=nfs/win2008r2-64-virtio.qcow2,cache=none,if=none,rerror=stop,werror=stop,id=drive-virtio-disk0,format=qcow2 -device virtio-blk-pci,drive=drive-virtio-disk0,id=device-virtio-disk0 -netdev tap,script=/etc/qemu-ifup,id=netdev0 -device virtio-net-pci,netdev=netdev0,id=device-net0 -boot order=cd -monitor stdio -usb -device usb-tablet,id=input0 -chardev socket,id=s1,path=/tmp/s1,server,nowait -device isa-serial,chardev=s1 -monitor unix:/tmp/tt,server,nowait -vga qxl -spice port=5920,disable-ticketing

2.in qemu monitor:
(qemu) __com.redhat_spice_migrate_info ?
spice_server_migrate_connect: 
An undefined error has ocurred

  
Actual results:
----------------
after step 2, qemu monitor hangs.


Expected results:
------------------
Prompt error correctly, qemu monitor should not hang.
Comment 3 daiwei 2012-03-22 10:53:29 UTC 
Reproduced this issue with steps and environment as follows: 

# uname -r ; rpm -q qemu-kvm
2.6.32-220.el6.x86_64
qemu-kvm-0.12.1.2-2.209.el6.x86_64

1.boot guest
/usr/libexec/qemu-kvm -cpu cpu64-rhel6,+x2apic,family=0xf -rtc base=localtime,clock=host,driftfix=slew -M rhel6.2.0 -enable-kvm -name win7_x64 -smp 2 -m 2G -uuid bd85c229-6384-446d-bedd-c111008ecfce -boot menu=on -drive file=/nfs/win7sp1.qcow2,if=none,id=drive-virtio-disk0,format=qcow2,cache=none,aio=native,media=disk,werror=stop,rerror=stop -device virtio-blk-pci,drive=drive-virtio-disk0,id=virtio-blk-pci0,bootindex=1 -netdev tap,id=hostnet0,vhost=on,script=/etc/qemu-ifup -device virtio-net-pci,netdev=hostnet0,id=net0,mac=44:37:E6:5E:A3:F7 -spice port=9000,disable-ticketing -balloon none -monitor stdio -usb -device usb-tablet,id=input1

2.in qemu monitor:
(qemu) __com.redhat_spice_migrate_info ?
spice_server_migrate_connect: 
An undefined error has ocurred

---after step 2, qemu monitor hangs---

Verified this issue with steps and environment as follows: 

# uname -r;rpm -q qemu-kvm
2.6.32-251.el6.x86_64
qemu-kvm-0.12.1.2-2.255.el6.x86_64

1.boot guest with the above command line

2.in qemu monitor
(qemu) __com.redhat_spice_migrate_info ?
Parameter 'port/tls-port' is missing

---after step 2,qemu monitor works well---

So,this bug had been fixed.
Comment 4 Miya Chen 2012-03-29 05:36:58 UTC 
*** Bug 750439 has been marked as a duplicate of this bug. ***
Comment 6 Yonit Halperin 2012-05-06 05:32:14 UTC 
    Technical note added. If any revisions are required, please edit the "Technical Notes" field
    accordingly. All revisions will be proofread by the Engineering Content Services team.
    
    New Contents:
Cause
Wrong error report when the monitor command __com.redhat_spice_migrate_info is  applied with bad parameters

Consequence
qemu monitor hangs

Fix
Fix the error reporting

Result
qemu monitor does not hang when the above monitor command is applied with bad parameters.
Comment 7 errata-xmlrpc 2012-06-20 11:43:37 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

http://rhn.redhat.com/errata/RHBA-2012-0746.html
Note You need to log in before you can comment on or make changes to this bug.