| Summary: | start domain will hang for several minutes after revert to a shutdown snapshot | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 6 | Reporter: | weizhang <weizhan> |
| Component: | libvirt | Assignee: | Eric Blake <eblake> |
| Status: | CLOSED INSUFFICIENT_DATA | QA Contact: | Virtualization Bugs <virt-bugs> |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | 6.1 | CC: | dallan, dyuan, eblake, gren, llim, mzhan, nzhang, rwu, yoyzhang |
| Target Milestone: | rc | ||
| Target Release: | --- | ||
| Hardware: | x86_64 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2011-12-19 22:02:24 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
Since RHEL 6.1 External Beta has begun, and this bug remains unresolved, it has been rejected as it is not proposed as exception or blocker. Red Hat invites you to ask your support representative to propose this request, if appropriate and relevant, in the next release of Red Hat Enterprise Linux. |
Description of problem: After revert to a shutdown snapshot, domain start will hang for 7-13 minute on my test. The domain I use is rhel6/6.1. Version-Release number of selected component (if applicable): kernel-2.6.32-125.el6.x86_64 qemu-kvm-0.12.1.2-2.153.el6.x86_64 libvirt-0.8.7-15.el6.x86_64 How reproducible: 100% Steps to Reproduce: 1. Prepare a shutdown domain with qcow2 img 2. create a snapshot when domain is shutdown virsh snapshot-create domain 3. start the domain virsh start domain 4. revert domain to a shutdown snapshot virsh snapshot-revert domain snapshot-name 5. start domain virsh start domain Actual results: virsh start will hang for several minutes Expected results: virsh start will succeed with no hang Additional info: domain xml <domain type='kvm' id='21'> <name>vr-rhel6u1-x86_64-kvm</name> <uuid>468d7413-1e95-a3c2-caba-834af5736659</uuid> <memory>524288</memory> <currentMemory>524288</currentMemory> <vcpu>1</vcpu> <os> <type arch='x86_64' machine='rhel6.1.0'>hvm</type> <boot dev='hd'/> </os> <features> <acpi/> <apic/> <pae/> </features> <clock offset='utc'/> <on_poweroff>destroy</on_poweroff> <on_reboot>restart</on_reboot> <on_crash>restart</on_crash> <devices> <emulator>/usr/libexec/qemu-kvm</emulator> <disk type='file' device='disk'> <driver name='qemu' type='qcow2'/> <source file='/var/lib/libvirt/images/vr-rhel6u1-x86_64-kvm'/> <target dev='hda' bus='ide'/> <alias name='ide0-0-0'/> <address type='drive' controller='0' bus='0' unit='0'/> </disk> <controller type='ide' index='0'> <alias name='ide0'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/> </controller> <interface type='network'> <mac address='52:54:00:37:50:c2'/> <source network='default'/> <target dev='vnet2'/> <model type='rtl8139'/> <alias name='net0'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/> </interface> <serial type='pty'> <source path='/dev/pts/5'/> <target port='0'/> <alias name='serial0'/> </serial> <console type='pty' tty='/dev/pts/5'> <source path='/dev/pts/5'/> <target type='serial' port='0'/> <alias name='serial0'/> </console> <input type='mouse' bus='ps2'/> <graphics type='vnc' port='5902' autoport='yes' keymap='en-us'/> <sound model='ac97'> <alias name='sound0'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/> </sound> <video> <model type='cirrus' vram='9216' heads='1'/> <alias name='video0'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/> </video> <memballoon model='virtio'> <alias name='balloon0'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/> </memballoon> </devices> <seclabel type='dynamic' model='selinux'> <label>system_u:system_r:svirt_t:s0:c473,c587</label> <imagelabel>system_u:object_r:svirt_image_t:s0:c473,c587</imagelabel> </seclabel> </domain>