[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [Bug 1434779] Re: qemu hangs on live-migration with storage
From: |
youyunyehe |
Subject: |
[Qemu-devel] [Bug 1434779] Re: qemu hangs on live-migration with storage(virtual machine: windows Server 2008 with only one disk ) |
Date: |
Sat, 21 Mar 2015 07:45:44 -0000 |
** Attachment added: "livemig.png"
https://bugs.launchpad.net/qemu/+bug/1434779/+attachment/4351204/+files/livemig.png
--
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1434779
Title:
qemu hangs on live-migration with storage(virtual machine: windows
Server 2008 with only one disk )
Status in QEMU:
New
Bug description:
Hi,
We are using “Windows Server 2008” with qemu-kvm-2.0.1 (linux kernel:3.10.0)
as a host of a VM.
Using drive_mirror to do live-migration on the same host for different disks
Local disk: /sf/data/local/
Shared disk(iscsi): /sf/other/local/ --- the disk is busy, the IO rate is
about 30MB/s
qemu-system-x86_64 -k en-us -m 2048 -smp 2 -vnc :3100 -usbdevice tablet -boot
c -enable-kvm -drive
file=/sf/data/local/vm-disk-1.qcow2,if=none,id=drive-ide0,cache=none,aio=native
-device ide-hd,bus=ide.0,unit=0,drive=drive-ide0,id=ide0,bootindex=100
Step 1:
Start migration: Drive_mirror -f drive-ide0 /sf/other/local/test.qcow2
Step 2:
When detect the migration has completed, then send cmd: block_job_complete -f
drive-ide0
Step 3:
send cmd: info status
What surprised me is that the qemu monitor reports can’t be connected.
Then find bellows:
The qemu process hangs on the
mirror_run->bdrv_drain_all->aio_poll->qemu_poll_ns->ppoll (),
None events were received and poll forever. I don’t know why the aio can’t be
responsed. This case is hardly to
be generated but it really happens sometimes . I’m looking forward to getting
help from you .
The stack capture snapshot:
Thanks
MyAngle
To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1434779/+subscriptions
[Prev in Thread] |
Current Thread |
[Next in Thread] |