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Description of problem: Amit's checker spotted a difference in pckbd: Paolo says 'pckbd was tuned to never generate the subsection in practice. But we can disable the subsection altogether just to err on the side of safety.' see bz 1174920 Version-Release number of selected component (if applicable): How reproducible: Steps to Reproduce: 1. 2. 3. Actual results: Expected results: Additional info:
Fix included in qemu-kvm-rhev-2.3.0-7.el7
Reproduce this bug using the following version: Src RHEL7.2 host: kernel-3.10.0-297.el7.x86_64 qemu-kvm-rhev-2.3.0-5.el7.x86_64 Dst RHEL7.1 host: kernel-3.10.0-229.10.1.el7.x86_64 qemu-kvm-rhev-2.1.2-23.el7_1.6.x86_64 Steps to Reproduce: 1. boot a guest on src and host dst host: # /usr/libexec/qemu-kvm -cpu Penryn -name test3 -S -machine pc-i440fx-rhel7.1.0,accel=kvm,usb=off -m 1000 -realtime mlock=off -smp 2,maxcpus=4,sockets=4,cores=1,threads=1 -uuid 7347d748-f7ce-448f-8d49-3d29c9bcac30 -no-user-config -nodefaults -rtc base=utc -no-shutdown -boot strict=on -drive file=/mnt/rhel7.1.qcow2,if=none,id=drive-ide0-0-0,format=qcow2 -device ide-hd,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0,bootindex=1 -spice port=5901,addr=0.0.0.0,disable-ticketing,seamless-migration=on -k en-us -device qxl-vga,id=video0,ram_size=134217728,vram_size=67108864,vgamem_mb=16,bus=pci.0,addr=0x2 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3 -msg timestamp=on -monitor stdio -device intel-hda,id=sound3,bus=pci.0,addr=0x6 -device hda-duplex,id=sound3-codec0,bus=sound3.0,cad=0 -netdev tap,id=hostnet0,vhost=on,script=/etc/qemu-ifup -device virtio-net-pci,netdev=hostnet0,mac=52:54:00:c6:4b:15,id=test,addr=0xa -drive file=,if=none,id=drive-fdc0-0-0,format=raw,cache=none -global isa-fdc.driveA=drive-fdc0-0-0 -boot menu=on -serial unix:/tmp/tty0,server,nowait 2. Login the guest through serial console. Inside guest, run the app of comment #2 # ./file 3. Do migration from RHEL7.2 host to RHEL7.1 host (qemu) migrate -d tcp:10.66.85.215:5800 Actual results: after step3, migration failed with: (qemu) qemu: warning: error while loading state for instance 0x0 of device 'pckbd' 2015-07-22T07:19:58.007926Z qemu-kvm: load of migration failed: No such file or directory
Test this bug using the following version: Src RHEL7.2 host: kernel-3.10.0-297.el7.x86_64 qemu-kvm-rhev-2.3.0-12.el7.x86_64 Dst RHEL7.1 host: kernel-3.10.0-229.10.1.el7.x86_64 qemu-kvm-rhev-2.1.2-23.el7_1.6.x86_64 Dst RHEL7.0 host: kernel-3.10.0-123.17.1.el7.x86_64 qemu-kvm-rhev-1.5.3-60.el7_0.11.x86_64 Use the same command line and steps to do test as comment #5 Migration Machine Type Result --------------------------------------------- rhel7.2-> rhel7.1 -M 7.1.0 pass rhel7.2-> rhel7.1 -M 7.0.0 pass rhel7.2-> rhel7.1 -M 6.6.0 pass rhel7.2-> rhel7.1 -M 6.5.0 pass rhel7.2-> rhel7.0 -M 7.0.0 pass rhel7.2-> rhel7.0 -M 6.5.0 pass
According to comment5 and comment6, set this issue as verified.
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/RHBA-2015-2546.html