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Re: [Qemu-devel] [Qemu-block] [BUG] qed_aio_write_alloc: Assertion `s->a

From: Kevin Wolf
Subject: Re: [Qemu-devel] [Qemu-block] [BUG] qed_aio_write_alloc: Assertion `s->allocating_acb == NULL' failed.
Date: Fri, 29 Jun 2018 22:35:28 +0200
User-agent: Mutt/1.9.1 (2017-09-22)

Am 29.06.2018 um 22:16 hat Eric Blake geschrieben:
> On 06/29/2018 03:07 PM, John Snow wrote:
> > CC Qemu Block; looks like QED is a bit busted.
> > 
> > On 06/27/2018 10:25 AM, Quytelda Kahja wrote:
> > > Hello all,
> > > I wanted to submit a bug report in the tracker, but it seem to require
> > > an Ubuntu One account, which I'm having trouble with, so I'll just
> > > give it here and hopefully somebody can make use of it.  The issue
> > > seems to be in an experimental format, so it's likely not very
> > > consequential anyway.
> Analysis in another thread may be relevant:
> https://lists.gnu.org/archive/html/qemu-devel/2018-06/msg08963.html

The assertion there was:

qemu-system-x86_64: block.c:3434: bdrv_replace_node: Assertion 
`!atomic_read(&to->in_flight)' failed.

Which quite clearly pointed to a drain bug. This one, however, doesn't
seem to be related to drain, so I think it's probably a different bug.


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