Bug 1313627
| Summary: | Fail to restore vm with usb keyboard config on ppc64le | ||||||||||
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| Product: | Red Hat Enterprise Linux 7 | Reporter: | Wayne Sun <gsun> | ||||||||
| Component: | libvirt | Assignee: | Andrea Bolognani <abologna> | ||||||||
| Status: | CLOSED ERRATA | QA Contact: | Virtualization Bugs <virt-bugs> | ||||||||
| Severity: | high | Docs Contact: | |||||||||
| Priority: | high | ||||||||||
| Version: | 7.3 | CC: | abologna, dgibson, dyuan, dzheng, mzhan, rbalakri, thuth | ||||||||
| Target Milestone: | rc | ||||||||||
| Target Release: | --- | ||||||||||
| Hardware: | ppc64le | ||||||||||
| OS: | Linux | ||||||||||
| Whiteboard: | |||||||||||
| Fixed In Version: | libvirt-1.3.5-1.el7 | Doc Type: | Bug Fix | ||||||||
| Doc Text: | Story Points: | --- | |||||||||
| Clone Of: | Environment: | ||||||||||
| Last Closed: | 2016-11-03 18:38:48 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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Description
Wayne Sun
2016-03-02 05:56:38 UTC
Packages: libvirt 1.3.2-1.el7 kernel 3.10.0-327.el7 qemu-kvm-rhev 2.5.0-2.el7 When do migration, the same error happens. See below. 2016-03-16 23:34:31,422 migrate_vm L1551 DEBUG| Start migrating: virsh migrate avocado-vt-vm1 --live --verbose --unsafe --compressed qemu+ssh://10.19.112.9:22/system error: internal error: early end of file from monitor, possible problem: 2016-03-17T03:34:54.842878Z qemu-kvm: Unknown savevm section or instance 'pci@800000020000000:02.0/1/usb-kbd' 0 2016-03-17T03:34:54.843263Z qemu-kvm: load of migration failed: Invalid argument ] After removing <input type='keyboard' bus='usb'/> in the guest XML, the error is removed. Looks like the first thing to do here is to check the qemu command lines that libvirt generates on source and destination and see if they match. Created attachment 1157825 [details]
The qemu log on source host
Created attachment 1157826 [details]
The qemu log on target host
Compared on both source and target host and they are not exactly matched on the qemu command line. Source: -device usb-kbd,id=input0 -device usb-mouse,id=input1 Target: -device usb-mouse,id=input0 -device usb-kbd,id=input1 See more in above attachments. Dan, I'd expect that command line change to alter where the two devices appear on the USB bus. That would probably be enough to cause the qemu error you saw, so it does look like a libvirt bug not correctly generating command lines. As to the problem stated in comment 2, it seems fixed already in libvirt-1.3.5-1.el7. Migration can succeed. (In reply to Dan Zheng from comment #8) > As to the problem stated in comment 2, it seems fixed already in > libvirt-1.3.5-1.el7. Migration can succeed. Looks like the 'virsh save' / 'virsh restore' issue is gone as well. I'm using the same libvirt version as you are with qemu-kvm-rhev-2.6.0-5.el7.ppc64, and I'm unable to reproduce it. Can you please try again? Hi Andrea, Tried with qemu-kvm-rhev-2.6.0-8.el7.ppc64le libvirt-1.3.5-1.el7.ppc64le # virsh list --all Id Name State ---------------------------------------------------- 2 avocado-vt-vm1 running # virsh save avocado-vt-vm1 /tmp/s.1 Domain avocado-vt-vm1 saved to /tmp/s.1 # virsh list --all Id Name State ---------------------------------------------------- - avocado-vt-vm1 shut off # virsh restore /tmp/s.1 Domain restored from /tmp/s.1 # virsh list --all Id Name State ---------------------------------------------------- 3 avocado-vt-vm1 running The problem can not be reproduced any more. So save/restore works on ppc now. Great, thanks for testing this! :) Test packages: libvirt-2.0.0-1.el7.ppc64le qemu-kvm-rhev-2.6.0-11.el7.ppc64le kernel-3.10.0-327.el7.ppc64le Case1: Basic save + restore without options # virsh list --all Id Name State ---------------------------------------------------- 3 avocado-vt-vm1 running # virsh save 3 /tmp/save.2 Domain 3 saved to /tmp/save.2 # ll /tmp/save.2 -rw-------. 1 root root 338268836 Jul 3 23:13 /tmp/save.2 # virsh list --all Id Name State ---------------------------------------------------- - avocado-vt-vm1 shut off # virsh restore /tmp/save.2 Domain restored from /tmp/save.2 # virsh list --all Id Name State ---------------------------------------------------- 4 avocado-vt-vm1 running Case2: save with options + restore # virsh save bd18531c-d5ed-4680-b8c6-9cb6074feb82 /tmp/save.2 --bypass-cache --verbose --paused Save: [100 %] Domain bd18531c-d5ed-4680-b8c6-9cb6074feb82 saved to /tmp/save.2 # virsh list --all Id Name State ---------------------------------------------------- - avocado-vt-vm1 shut off # virsh restore /tmp/save.2 Domain restored from /tmp/save.2 [root@ibm-p8-kvm-01-qe rpm]# virsh list --all Id Name State ---------------------------------------------------- 6 avocado-vt-vm1 paused Case3: save with options + restore with options dump.xml has one line difference with dumpxml avocado-vt-vm1. <on_crash>destroy</on_crash> # virsh save bd18531c-d5ed-4680-b8c6-9cb6074feb82 /tmp/save.2 --bypass-cache --verbose --paused --xml dump.xml Save: [100 %] Domain bd18531c-d5ed-4680-b8c6-9cb6074feb82 saved to /tmp/save.2 # virsh list --all Id Name State ---------------------------------------------------- - avocado-vt-vm1 shut off # virsh restore /tmp/save.2 --running --bypass-cache Domain restored from /tmp/save.2 # virsh list --all Id Name State ---------------------------------------------------- 8 avocado-vt-vm1 running # virsh dumpxml 8 |grep on_crash <on_crash>destroy</on_crash> Case4: # virsh save avocado-vt-vm1 /tmp/save.2 --bypass-cache --verbose --running --xml dump.xml Save: [100 %] Domain avocado-vt-vm1 saved to /tmp/save.2 # vim dump2.xml One line is different from dump.xml. <on_reboot>destroy</on_reboot> # virsh restore /tmp/save.2 --paused --bypass-cache --xml dump2.xml Domain restored from /tmp/save.2 # virsh list --all Id Name State ---------------------------------------------------- 9 avocado-vt-vm1 paused # virsh dumpxml 9 |grep on_reboot <on_reboot>destroy</on_reboot> After the guest is restored and running , user can log on the guest and do operation normally. So all tests are passed. 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. https://rhn.redhat.com/errata/RHSA-2016-2577.html |