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Re: [Qemu-devel] [Qemu-block] [Bug 1570134] Re: While committing snapsho

From: Kevin Wolf
Subject: Re: [Qemu-devel] [Qemu-block] [Bug 1570134] Re: While committing snapshot qemu crashes with SIGABRT
Date: Thu, 21 Apr 2016 13:43:59 +0200
User-agent: Mutt/1.5.21 (2010-09-15)

Am 21.04.2016 um 13:35 hat Peter Maydell geschrieben:
> On 20 April 2016 at 19:09, Max Reitz <address@hidden> wrote:
> > On 20.04.2016 02:03, Matthew Schumacher wrote:
> >> Qemu still crashes for me, but the debug is again very different.  When
> >> I attach to the qemu process from gdb, it is unable to provide a
> >> backtrace when it crashes.  The log file is different too.  Any ideas?
> >>
> >> qemu-system-x86_64: block.c:2307: bdrv_replace_in_backing_chain:
> >> Assertion `!bdrv_requests_pending(old)' failed.
> >
> > This message is exactly the same as you saw in 2.5.1, so I guess we've
> > at least averted a regression in 2.6.0.
> Could somebody summarize for me the state of this bug w.r.t. the
> upcoming release? In particular:
>  * are there any patches on-list for it which should go into rc3?
>  * are there any further problems which we plan to fix for 2.6 but
>    which there aren't patches for yet?

The first part of the bug (the regression since 2.5) was fixed with the
pull request that I sent you yesterday. For the remaining part, Fam sent
this patch, which hasn't been applied yet:

[PATCH for-2.6] virtio: Register host notifier handler as external


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