Bug 879132
| Summary: | create external checkpoint sometimes will crash libvirtd | ||||||
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| Product: | Red Hat Enterprise Linux 6 | Reporter: | Huang Wenlong <whuang> | ||||
| Component: | libvirt | Assignee: | Peter Krempa <pkrempa> | ||||
| Status: | CLOSED ERRATA | QA Contact: | Virtualization Bugs <virt-bugs> | ||||
| Severity: | high | Docs Contact: | |||||
| Priority: | high | ||||||
| Version: | 6.4 | CC: | acathrow, cwei, dyasny, dyuan, mzhan, pkrempa, rwu, zhpeng | ||||
| Target Milestone: | rc | Keywords: | TestOnly | ||||
| Target Release: | --- | ||||||
| Hardware: | x86_64 | ||||||
| OS: | Linux | ||||||
| Whiteboard: | |||||||
| Fixed In Version: | libvirt-0.10.2-10.el6 | Doc Type: | Bug Fix | ||||
| Doc Text: | Story Points: | --- | |||||
| Clone Of: | Environment: | ||||||
| Last Closed: | 2013-02-21 07:27:27 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: | |||||||
| Attachments: |
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Hm, the output looks strange. Deletion of external snapshots isn't supported yet:
The output of upstream version looks like:
Domain snapshot v79 created
error: Failed to delete snapshot v79
error: unsupported configuration: deletion of 1 external disk snapshots not supported yet
RHEL is missing upstream commit:
commit 30f1bccf332c93aa646c6d5a69f1287a5d170983
Author: Peter Krempa <pkrempa>
Date: Fri Oct 19 11:55:36 2012 +0200
snapshot: qemu: Fix detection of external snapshots when deleting
This patch adds a helper to determine if snapshots are external and uses
the helper to fix detection of those in snapshot deletion code.
Snapshots are external if they have an external memory image or if the
disk locations are external. As mixed snapshots are forbidden for now
we need to check just one disk to know.
This patch is backported as part of fix for https://bugzilla.redhat.com/show_bug.cgi?id=876817.
I will investigate further what's causing the crash but the problem cannot be reproduced on the upstream version and should not be reproducible after a build containing bz876817 is available.
As deletion of external checkpoints isn't yet supported by libvirt and the support was now properly disabled ( https://bugzilla.redhat.com/show_bug.cgi?id=876816 ) I'm setting this as test-only (to test if creation of snapshots in a loop is working okay) and moving to ON_QA. Verify this bug : libvirt-0.10.2-11.el6.x86_64 can not delete external checkpoints snapshot see bug : https://bugzilla.redhat.com/show_bug.cgi?id=876816 #for i in `seq 10 100` ;do virsh snapshot-create-as v9 v$i --diskspec=hda --memspec=/tmp/v2 ;virsh snapshot-delete v9 v$i;done Domain snapshot v10 created error: Failed to delete snapshot v10 error: unsupported configuration: deletion of 1 external disk snapshots not supported yet Domain snapshot v11 created error: Failed to delete snapshot v11 error: unsupported configuration: deletion of 1 external disk snapshots not supported yet ... Domain snapshot v100 created error: Failed to delete snapshot v100 error: unsupported configuration: deletion of 1 external disk snapshots not supported yet # # service libvirtd status libvirtd (pid 7765) is running... 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/RHSA-2013-0276.html |
Created attachment 649544 [details] libvirtd log Description of problem: create external checkpoint sometimes will crash libvirtd Version-Release number of selected component (if applicable): libvirt-0.10.2-9.el6.x86_64 How reproducible: 1/10 Steps to Reproduce: 1. start a domain name v9 with qcow2 img # virsh list Id Name State ---------------------------------------------------- 1 guest running 12 v9 running 2.#for i in `seq 10 100` ;do virsh snapshot-create-as v9 v$i --diskspec=hda --memspec=/tmp/v2 ;virsh snapshot-delete v9 v$i;done Domain snapshot v10 created Domain snapshot v10 deleted Domain snapshot v11 created Domain snapshot v11 deleted .... 3.libvirtd crash with error: error: End of file while reading data: Input/output error error: Failed to reconnect to the hypervisor error: Failed to reconnect to the hypervisor Actual results: as steps Expected results: libvirtd do not crash Additional info: attach the libvirtd log