Bug 1263046
Summary: | when drive-mirror from raw disk to qcow2 disk, guest hang | ||
---|---|---|---|
Product: | Red Hat Enterprise Linux 7 | Reporter: | Pei Zhang <pezhang> |
Component: | qemu-kvm-rhev | Assignee: | Jeff Cody <jcody> |
Status: | CLOSED DUPLICATE | QA Contact: | Virtualization Bugs <virt-bugs> |
Severity: | medium | Docs Contact: | |
Priority: | unspecified | ||
Version: | 7.2 | CC: | areis, chayang, famz, huding, jcody, juzhang, knoel, kwolf, michen, mst, pbonzini, shu, virt-maint, xfu |
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: | 2015-09-17 06:46:50 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: |
Description
Pei Zhang
2015-09-15 02:45:41 UTC
More additional infos: 1. qeury drive-mirror job in qmp (twice) { "execute" : "query-block-jobs", "arguments" : {} } {"return": [{"io-status": "ok", "device": "drive-virtio-blk0", "busy": false, "len": 0, "offset": 0, "paused": false, "speed": 9223372036854775807, "ready": false, "type": "mirror"}]} { "execute" : "query-block-jobs", "arguments" : {} } {"return": [{"io-status": "ok", "device": "drive-virtio-blk0", "busy": false, "len": 0, "offset": 0, "paused": false, "speed": 9223372036854775807, "ready": false, "type": "mirror"}]} 2. qemu still shows guest is running(actually hang) (qemu) info status VM status: running 3. In host( no other applications except qemu), always 1/8 cpus sy is 100%. # top top - 12:55:05 up 1:24, 4 users, load average: 0.97, 0.58, 0.29 Tasks: 255 total, 2 running, 253 sleeping, 0 stopped, 0 zombie %Cpu0 : 0.0 us, 0.0 sy, 0.0 ni,100.0 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st %Cpu1 : 0.0 us,100.0 sy, 0.0 ni, 0.0 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st %Cpu2 : 0.0 us, 0.0 sy, 0.0 ni,100.0 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st %Cpu3 : 0.0 us, 0.0 sy, 0.0 ni,100.0 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st %Cpu4 : 0.0 us, 0.0 sy, 0.0 ni,100.0 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st %Cpu5 : 0.0 us, 0.0 sy, 0.0 ni,100.0 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st %Cpu6 : 0.0 us, 0.0 sy, 0.0 ni,100.0 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st %Cpu7 : 0.0 us, 0.0 sy, 0.0 ni,100.0 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st KiB Mem : 7968276 total, 6158768 free, 981436 used, 828072 buff/cache KiB Swap: 8257532 total, 8257532 free, 0 used. 6736312 avail Mem 4. Also tested with qemu-kvm-rhev of low versions, below are the version and test results. (1)qemu-kvm-rhev-2.3.0-14.el7.x86_64: guest hang, 1/8 cpus sy is 100%, (qemu works well) (2)qemu-kvm-rhev-2.3.0-13.el7.x86_64: guest hang, 1/8 cpus sy is 100%, (qemu works well) (3)qemu-kvm-rhev-2.3.0-12.el7.x86_64: guest hang, 1/8 cpus sy is 100%, and qemu hang (4)qemu-kvm-rhev-2.1.2-23.el7.x86_64: guest hang, 1/8 cpus sy is 100%, and qemu hang Can you check if that fixes the error: http://git.qemu.org/?p=qemu.git;a=commit;h=4c0cbd6fec7db182a6deb52d5a8a8e7b0c5cbe64 (In reply to Markus Stockhausen from comment #2) > Can you check if that fixes the error: > > http://git.qemu.org/?p=qemu.git;a=commit; > h=4c0cbd6fec7db182a6deb52d5a8a8e7b0c5cbe64 commit 4c0cbd6fec7db182a6deb52d5a8a8e7b0c5cbe64 Author: Fam Zheng <famz> Date: Wed May 13 11:11:13 2015 +0800 block/mirror: Sleep periodically during bitmap scanning This patch is already in RHEL 7.2: qemu-kvm-rhev-2.3.0-13.el7 Bug 1233826 - issueing drive-mirror command causes monitor unresponsive https://bugzilla.redhat.com/show_bug.cgi?id=1233826 (In reply to Markus Stockhausen from comment #2) > Can you check if that fixes the error: > > http://git.qemu.org/?p=qemu.git;a=commit; > h=4c0cbd6fec7db182a6deb52d5a8a8e7b0c5cbe64 I retested with the latest qemu-kvm-rhev-2.3.0-23.el7, the guest works well. KVM QE does not sure if this is same issue with Bug 1259229. And this bug has been fixed. Host: Kernel:3.10.0-315.el7.x86_64 qemu-kvm-rhev:qemu-kvm-rhev-2.3.0-23.el7.x86_64 Steps: 1. boot guest with a raw disk # /usr/libexec/qemu-kvm -name rhel6.7z -machine pc-i440fx-rhel7.2.0,accel=kvm \ -cpu SandyBridge -m 4G,slots=256,maxmem=40G -numa node \ -smp 4,sockets=2,cores=2,threads=1 \ -uuid 82b1a01e-5f6c-4f5f-8d27-3855a74e6b61 \ -netdev tap,id=hostnet0 \ -device virtio-net-pci,netdev=hostnet0,id=net0,mac=12:54:00:5c:88:61 \ -device qxl-vga,id=video0,ram_size=67108864,vram_size=67108864,vgamem_mb=16 \ -vnc 0.0.0.0:1 \ -monitor stdio \ -qmp tcp:0:5555,server,nowait \ -serial unix:/tmp/monitor,server,nowait \ -drive file=/mnt/disk4/rhel6.7_virtio.raw,format=raw,if=none,id=drive-virtio-blk0,werror=stop,rerror=stop \ -device virtio-blk-pci,drive=drive-virtio-blk0,id=virtio-blk0 \ 2. drive-mirror to qcow2 disk, guest hang. { "execute": "drive-mirror", "arguments": { "device": "drive-virtio-blk0","target": "/mnt/disk3/mirror0.qcow2", "format": "qcow2", "mode": "absolute-paths", "sync": "full", "speed": 9223372036854775807, "on-source-error": "stop","on-target-error": "stop" } } {"return": {}} {"timestamp": {"seconds": 1442373542, "microseconds": 77287}, "event": "BLOCK_JOB_READY", "data": {"device": "drive-virtio-blk0", "len": 21475688448, "offset": 21475688448, "speed": 9223372036854775807, "type": "mirror"}} 3. reopen {"execute": "block-job-complete", "arguments": { "device": "drive-virtio-blk0"} } {"return": {}} {"timestamp": {"seconds": 1442373572, "microseconds": 995752}, "event": "BLOCK_JOB_COMPLETED", "data": {"device": "drive-virtio-blk0", "len": 21476147200, "offset": 21476147200, "speed": 9223372036854775807, "type": "mirror"}} (qemu) info block drive-virtio-blk0: /mnt/disk3/mirror0.qcow2 (qcow2) Cache mode: writeback ... 4. Guest works well. After reboot guest sever times, it still works well. *** This bug has been marked as a duplicate of bug 1259229 *** |