Bug 1248382
| Summary: | migration/rdma: 7.1->7.2: RDMA ERROR: ram blocks mismatch #3! | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 7 | Reporter: | Jan Kurik <jkurik> |
| Component: | qemu-kvm-rhev | Assignee: | Dr. David Alan Gilbert <dgilbert> |
| Status: | CLOSED ERRATA | QA Contact: | Virtualization Bugs <virt-bugs> |
| Severity: | unspecified | Docs Contact: | |
| Priority: | urgent | ||
| Version: | 7.2 | CC: | dgilbert, hhuang, huding, jkurik, juzhang, mrezanin, qzhang, shu, virt-maint, xfu |
| Target Milestone: | rc | Keywords: | ZStream |
| Target Release: | --- | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | qemu-kvm-rhev-2.1.2-23.el7_1.8 | Doc Type: | Bug Fix |
| Doc Text: |
Cause:
During RDMA migration, QEMU incorrectly assumed an ordering in the list of RAM blocks was the same on the destination as the source.
Consequence:
Failed RDMA migrations, either after hotplugging or to newer versions of QEMU. There is a small potential for a crash or a corruption, however it normally fails cleanly with an error.
Fix:
QEMU now sorts the list of RAM blocks to transfer so that they always match on the source and destination.
Result:
|
Story Points: | --- |
| Clone Of: | 1210715 | Environment: | |
| Last Closed: | 2015-09-07 15:49:42 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: | 1210715 | ||
| Bug Blocks: | |||
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Description
Jan Kurik
2015-07-30 08:04:54 UTC
Fix included in qemu-kvm-rhev-2.1.2-23.el7_1.8 Verified on qemu-kvm-rhev-2.1.2-23.el7_1.8.x86_64: # /usr/libexec/qemu-kvm -enable-kvm -M pc-i440fx-rhel7.1.0 -smp 4 -m 4G -name rhel6.3-64 -uuid 3f2ea5cd-3d29-48ff-aab2-23df1b6ae213 -drive file=/root/nfs/RHEL-Server-7.2-64-virtio.qcow2,cache=none,if=none,rerror=stop,werror=stop,id=drive-virtio-disk0,format=qcow2,aio=native -device virtio-blk-pci,drive=drive-virtio-disk0,id=device-virtio-disk0,bootindex=1 -netdev tap,script=/etc/qemu-ifup,id=netdev0 -device virtio-net-pci,netdev=netdev0,id=device-net0,mac=aa:54:00:11:22:33 -boot order=cd -monitor stdio -usb -device usb-tablet,id=input0 -chardev socket,id=s1,path=/tmp/s1,server,nowait -device isa-serial,chardev=s1 -monitor tcp::1234,server,nowait -vga qxl -global qxl-vga.revision=3 -spice port=5920,disable-ticketing -global PIIX4_PM.disable_s3=0 -global PIIX4_PM.disable_s4=0 -vnc :10 -qmp tcp:0:5555,server,nowait -chardev socket,id=mon,path=/opt/mon.monitor,server,nowait -mon chardev=mon,mode=readline QEMU 2.1.2 monitor - type 'help' for more information (qemu) (qemu) (qemu) (qemu) (qemu) (qemu) netdev_add tap,script=/etc/qemu-ifup,id=netdev1 (qemu) (qemu) (qemu) device_add e1000,netdev=netdev1,id=device-net1,mac=aa:54:00:11:22:34 (qemu) (qemu) (qemu) (qemu) migrate -d rdma:192.168.0.21:6666 source_resolve_host RDMA Device opened: kernel name mlx4_0 uverbs device name uverbs0, infiniband_verbs class device path /sys/class/infiniband_verbs/uverbs0, infiniband class device path /sys/class/infiniband/mlx4_0, transport: (1) Infiniband (qemu) (qemu) (qemu) (qemu) info migrate capabilities: xbzrle: off rdma-pin-all: off auto-converge: off zero-blocks: off Migration status: completed total time: 1169 milliseconds downtime: 164 milliseconds setup: 4 milliseconds transferred ram: 1060980 kbytes throughput: 7428.26 mbps remaining ram: 0 kbytes total ram: 4326476 kbytes duplicate: 824872 pages skipped: 0 pages normal: 264979 pages normal bytes: 1059916 kbytes dirty sync count: 0 (qemu) 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-2015-1739.html |