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Re: [Qemu-devel] 2.1.0 unexpected abort after canceling migrate

From: Stefan Hajnoczi
Subject: Re: [Qemu-devel] 2.1.0 unexpected abort after canceling migrate
Date: Thu, 5 Feb 2015 14:16:15 +0000
User-agent: Mutt/1.5.23 (2014-03-12)

On Sat, Jan 31, 2015 at 05:23:52PM +0800, Wangting (Kathy) wrote:
> Qemu 2.1.0 is currently crashing with the log

Have you tried qemu.git/master?

> [2015-01-30T08:17:29.512340Z] handle_qmp_command:5100 qmp_cmd_name: 
> migrate_cancel
> [2015-01-30T08:17:29.857114Z] handle_qmp_command:5110 qmp_cmd_name: 
> block-job-cancel, qmp_cmd_arguments: {"device": "drive-scsi0-0-0-0"}
> [2015-01-30T08:17:29.890641Z] handle_qmp_command:5110 qmp_cmd_name: 
> block-job-cancel, qmp_cmd_arguments: {"device": "drive-scsi0-0-0-4"}
> nbd.c:nbd_receive_reply():L797: read failed
> Co-routine re-entered recursively

Please post the backtrace (the QEMU process aborts so a coredump should
be available).

> after execution of the commands "migrate_cancel" and "block-job-cancel"
> That can be easily reproduceable when using ide or virtio-scsi disks.

You haven't provided enough information to easily reproduce the problem.
Please include the QEMU command-lines on the source and destination
hosts, as well as the QMP commands used to start block jobs.


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