From: Stefan Hajnoczi <stefanha@redhat.com>
To: Dunrong Huang <riegamaths@gmail.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>, qemu-devel <qemu-devel@nongnu.org>
Subject: Re: [Qemu-devel] dataplane bug: fail to start VM with dataplane enable
Date: Wed, 13 Mar 2013 12:28:46 +0100 [thread overview]
Message-ID: <20130313112846.GA25354@stefanha-thinkpad.muc.redhat.com> (raw)
In-Reply-To: <CAOZVR5apRncULS9M59pNka5OwA6hdW0tyyY_AfhhGBzOF=d9Lw@mail.gmail.com>
On Wed, Mar 13, 2013 at 06:01:40PM +0800, Dunrong Huang wrote:
> Hi, Paolo && Stefan:
>
> When I test the dataplane feature with git master, I find that VM will
> hang if dataplane is enabled. But if I use qemu-1.4.0, VM can start
> normally.
>
> The command I boot QEMU is:
> x86_64-softmmu/qemu-system-x86_64 -enable-kvm -m 1024 -smp 2 -drive
> file=centos-6.4.raw,if=none,id=drive-virtio-disk,format=raw,cache=none,aio=native
> -device virtio-blk-pci,config-wce=off,scsi=off,x-data-plane=on,drive=drive-virtio-disk,id=virtio-disk
>
> git bisect implicates this bug was introduced by following commit:
>
> commit 82959e8262df7da882d715f8a0cb4e8c7cd6e94b
> Author: Paolo Bonzini <pbonzini@redhat.com>
> Date: Fri Feb 22 10:40:34 2013 +0100
>
> dataplane: remove EventPoll in favor of AioContext
It reproduces here too using a RHEL 6.4 guest image. Hang at the BIOS
screen before GRUB is loaded.
Stefan
next prev parent reply other threads:[~2013-03-13 11:29 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-13 10:01 [Qemu-devel] dataplane bug: fail to start VM with dataplane enable Dunrong Huang
2013-03-13 11:28 ` Stefan Hajnoczi [this message]
2013-03-14 2:04 ` Dunrong Huang
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