From: Paolo Bonzini <pbonzini@redhat.com>
To: "Gabriel L. Somlo" <somlo@cmu.edu>, qemu-devel@nongnu.org
Cc: stefanha@redhat.com
Subject: Re: [Qemu-devel] commit 5b82b70 boot problems
Date: Wed, 10 Feb 2016 22:33:49 +0100 [thread overview]
Message-ID: <56BBACBD.4090300@redhat.com> (raw)
In-Reply-To: <20160210192648.GI16357@HEDWIG.INI.CMU.EDU>
On 10/02/2016 20:26, Gabriel L. Somlo wrote:
> Hi Stefan,
>
> After pulling from upstream this morning, my guest VMs were no longer
> able to boot. For instance, running something like
>
> bin/qemu-system-x86_64 -machine q35,accel=kvm -m 2048 -monitor stdio \
> -device ide-drive,bus=ide.2,drive=CD \
> -drive id=CD,if=none,snapshot=on,file=Fedora-Live-Workstation-x86_64-22-3.iso
>
> Would just hang with a black screen, or sometimes partially display
> the GRUB boot menu, and never make it any further than that.
>
> After a bisect, I narrowed it down to 5b82b70 ("memory: RCU
> ram_list.dirty_memory[] for safe RAM hotplug"); reverting that
> commit got me back to where my VMs were working fine, but the
> actual content of the changes isn't immediately obvious.
>
> Apologies for the noise in case you're already aware of the problem.
No apologies needed, but indeed a fix is pending on the list (search for
"memory" in today's subjects).
Paolo
> Otherwise, I'd be happy to test and send you debug output.
>
> Please advise.
>
> Thanks much,
> --Gabriel
>
>
prev parent reply other threads:[~2016-02-10 21:33 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-10 19:26 [Qemu-devel] commit 5b82b70 boot problems Gabriel L. Somlo
2016-02-10 21:33 ` Paolo Bonzini [this message]
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