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Re: [Qemu-devel] 3.1: second invocation of migrate crashes qemu
From: |
Dr. David Alan Gilbert |
Subject: |
Re: [Qemu-devel] 3.1: second invocation of migrate crashes qemu |
Date: |
Mon, 14 Jan 2019 10:51:32 +0000 |
User-agent: |
Mutt/1.10.1 (2018-07-13) |
* Michael Tokarev (address@hidden) wrote:
> $ qemu-system-x86_64 -monitor stdio -hda foo.img
> QEMU 3.1.0 monitor - type 'help' for more information
> (qemu) stop
> (qemu) migrate "exec:cat >/dev/null"
> (qemu) migrate "exec:cat >/dev/null"
> qemu-system-x86_64: /build/qemu/qemu-3.1/block.c:4647:
> bdrv_inactivate_recurse: Assertion `!(bs->open_flags & BDRV_O_INACTIVE)'
> failed.
> Aborted
And on head as well; it only happens if the 1st migrate is succesful;
if it got cancelled the 2nd one works, so it's not too bad.
I suspect the problem here is all around locking/ownership - the block
devices get shutdown at the end of migration since the assumption is
that the other end has them open now and we had better release them.
Dave
> (it is irrelevant what's in foo.img, it only needs to be initialized).
>
> If it is worth to bisect I'll do that tomorrow.
>
> Thanks,
>
> /mjt
>
--
Dr. David Alan Gilbert / address@hidden / Manchester, UK
- [Qemu-devel] 3.1: second invocation of migrate crashes qemu, Michael Tokarev, 2019/01/12
- Re: [Qemu-devel] 3.1: second invocation of migrate crashes qemu,
Dr. David Alan Gilbert <=
- Re: [Qemu-devel] 3.1: second invocation of migrate crashes qemu, Kevin Wolf, 2019/01/14
- Re: [Qemu-devel] 3.1: second invocation of migrate crashes qemu, Dr. David Alan Gilbert, 2019/01/18
- Re: [Qemu-devel] 3.1: second invocation of migrate crashes qemu, Kevin Wolf, 2019/01/21
- Re: [Qemu-devel] 3.1: second invocation of migrate crashes qemu, Dr. David Alan Gilbert, 2019/01/21
- Re: [Qemu-devel] 3.1: second invocation of migrate crashes qemu, Kevin Wolf, 2019/01/21
- Re: [Qemu-devel] 3.1: second invocation of migrate crashes qemu, Dr. David Alan Gilbert, 2019/01/24