Bug 486157
| Summary: | PV guest stops running when xm save fails | ||||||||||
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| Product: | Red Hat Enterprise Linux 5 | Reporter: | Jiri Denemark <jdenemar> | ||||||||
| Component: | xen | Assignee: | Jiri Denemark <jdenemar> | ||||||||
| Status: | CLOSED ERRATA | QA Contact: | Virtualization Bugs <virt-bugs> | ||||||||
| Severity: | medium | Docs Contact: | |||||||||
| Priority: | low | ||||||||||
| Version: | 5.4 | CC: | minovotn, mshao, pbonzini, syeghiay, xen-maint, yuzhang | ||||||||
| Target Milestone: | rc | Keywords: | Regression | ||||||||
| Target Release: | --- | ||||||||||
| Hardware: | All | ||||||||||
| OS: | Linux | ||||||||||
| Whiteboard: | |||||||||||
| Fixed In Version: | xen-3.0.3-85.el5 | Doc Type: | Bug Fix | ||||||||
| Doc Text: | Story Points: | --- | |||||||||
| Clone Of: | Environment: | ||||||||||
| Last Closed: | 2009-09-02 10:09:20 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: | |||||||||||
| Bug Depends On: | 484110 | ||||||||||
| Bug Blocks: | 486291, 513335, 513537 | ||||||||||
| Attachments: |
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Description
Jiri Denemark
2009-02-18 17:26:35 UTC
Created attachment 332424 [details]
xend.log
I almost forgot to attach the log...
This bugzilla has Keywords: Regression. Since no regressions are allowed between releases, it is also being proposed as a blocker for this release. Please resolve ASAP. Created attachment 334662 [details]
Patch to fix this bug
The patch from rhbz #484110 is also required for fixing this issue... Fix built into xen-3.0.3-85.el5 Reproducing the bug in a system updated to xen-3.0.3-90.el5,the guest still remains shutdown when save failed.
Release-Archs Covered:
RHEL-5-Client - i386,x86_64
RHEL-5-Server - i386,x86_64
Packages Tested:
xen-3.0.3-90.el5
xen-debuginfo-3.0.3-90.el5
xen-devel-3.0.3-90.el5.i386
xen-libs-3.0.3-90.el5.i386
Steps:
(1)start a paravirtualized guest with 512MB memory
(2)mount a 100MB disk partition on /mnt
(3)run
# xm save <guest> /mnt/<guest>.save
then save will fail with:
Error: /usr/lib/xen/bin/xc_save 22 5 0 0 0 failed
Usage: xm save <Domain> <CheckpointFile>
Save a domain state to restore later.
(4)run
#xm list
shows:
domain1 5 511 1 ---s-- 11.3
the guest remains shutdown and can not run again.
xend.log is uploaded in the attachment.
Created attachment 354241 [details]
xend.log
Reproducing the bug in a system updated to xen-3.0.3-90.el5,the guest still remains shutdown when save failed.
Release-Archs Covered:
RHEL-5-Client - i386,x86_64
RHEL-5-Server - i386,x86_64
Packages Tested:
xen-3.0.3-90.el5
xen-debuginfo-3.0.3-90.el5
xen-devel-3.0.3-90.el5.i386
xen-libs-3.0.3-90.el5.i386
Steps:
(1)start a paravirtualized guest with 512MB memory
(2)mount a 100MB disk partition on /mnt
(3)run
# xm save <guest> /mnt/<guest>.save
then save will fail with:
Error: /usr/lib/xen/bin/xc_save 22 5 0 0 0 failed
Usage: xm save <Domain> <CheckpointFile>
Save a domain state to restore later.
(4)run
#xm list
shows:
domain1 5 511 1 ---s-- 11.3
the guest remains shutdown and can not run again.
xend.log is uploaded in the attachment.
I am afraid this was introduced by one of my patches regarding PVFB backend removal, I'll do some more investigation of this one but since there is an error with vkbd device I think this is the issue. I'll to further investigation of this one... Michal Well, I have created new patch for BZ #507765 that should be solving this one. You can find new RPMs with this patch applied at: http://people.redhat.com/minovotn/xen Thanks, Michal May I ask When will the new RPMs get into ERRATA? Oops, the error you saw was not caused by the patch for PVFB backend removal. So it won't be fixed in the next package. Please, verify this bug and https://bugzilla.redhat.com/show_bug.cgi?id=486291 with a PV guest without VFB device and report the error you saw as a new BZ. Thanks. 32-bit PV guest on x86_64 host still remains shutdown when 'xm save' failed:
Packages Tested:
xen-3.0.3-91.el5
Steps:
(1)start a 32-bit paravirtualized guest with 512MB memory on x86_64 host
(2)mount a 100MB disk partition on /mnt
(3)run
# xm save <guest> /mnt/<guest>.save
then save will fail with:
Error: /usr/lib/xen/bin/xc_save 22 5 0 0 0 failed
Usage: xm save <Domain> <CheckpointFile>
Save a domain state to restore later.
(4)run
#xm list
shows:
domain1 5 511 1 ---s-- 11.3
the guest remains shutdown and can not run again.It is not connected by network too.
A 32-bit PV on 32-bit host works just fine when xm save failed,as if no xm save command was ever issued
Sorry, I forget to mention that the all PV guests are started without VFB device in the above certification process. Oh man, another 32-on-64 bug... Luckily it is a small one. Could you please report it as a new bug with xend.log attached? Thanks a lot. The new bug is 513335. Verified on xen-3.0.3-91.el5 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-2009-1328.html |