From: Marcelo Tosatti <mtosatti@redhat.com>
To: Paolo Bonzini <pbonzini@redhat.com>, Andrey Korolyov <andrey@xdel.ru>
Cc: "Marcin Gibuła" <m.gibula@beyond.pl>,
"Alexander Graf" <agraf@suse.de>,
qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [PATCH uq/master] kvmclock: Ensure proper env->tsc value for kvmclock_current_nsec calculation
Date: Tue, 15 Jul 2014 17:34:35 -0300 [thread overview]
Message-ID: <20140715203435.GA15621@amt.cnet> (raw)
In-Reply-To: <20140715203122.GB6258@amt.cnet>
On Tue, Jul 15, 2014 at 05:31:22PM -0300, Marcelo Tosatti wrote:
> On Tue, Jul 15, 2014 at 10:15:14PM +0200, Paolo Bonzini wrote:
> > Il 15/07/2014 22:03, Marcin Gibuła ha scritto:
> > >>This causes a hang during migration, so I'll revert the patch from 2.1.
> > >
> > >For me this patch series fixed all hangs I had with migration (at least
> > >with qemu 2.0).
> >
> > Unfortunately, someone else bisected their hangs exactly to this patch:
> >
> > http://permalink.gmane.org/gmane.comp.emulators.qemu/286681
> >
> > I could not reproduce that, but I couldn't reproduce yours either so
> > I'm inclined to trust him and revert the patch.
>
> This patch (or some form of updating env->tsc, see changelog)
> is necessary.
>
> I was just about to reproduce it.
>
> Andrey, can you please provide the qemu command line ?
>
> Can you attempt to start VM via command line and migrate
> via QEMU monitor, then gdb -p to get a backtrace for all
> threads ?
>
The backtrace in the following message is for a different problem,
correct?
http://www.mail-archive.com/qemu-devel@nongnu.org/msg246161.html
next prev parent reply other threads:[~2014-07-15 20:35 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-16 15:15 [Qemu-devel] [PATCH v2] kvmclock: Ensure time in migration never goes backward Alexander Graf
2014-05-18 13:20 ` Marcelo Tosatti
2014-05-19 11:31 ` Paolo Bonzini
2014-05-21 10:03 ` Alexander Graf
2014-06-02 20:31 ` Marcin Gibuła
2014-06-03 5:16 ` Marcelo Tosatti
2014-06-03 9:11 ` Marcin Gibuła
2014-06-03 11:13 ` Paolo Bonzini
2014-06-03 16:34 ` [Qemu-devel] [PATCH uq/master] kvmclock: Ensure proper env->tsc value for kvmclock_current_nsec calculation Marcelo Tosatti
2014-07-15 19:45 ` Paolo Bonzini
2014-07-15 20:03 ` Marcin Gibuła
2014-07-15 20:15 ` Paolo Bonzini
2014-07-15 20:31 ` Marcelo Tosatti
2014-07-15 20:34 ` Marcelo Tosatti [this message]
2014-07-15 20:43 ` Paolo Bonzini
2014-07-15 21:05 ` Andrey Korolyov
2014-07-15 21:08 ` Paolo Bonzini
2014-07-15 20:43 ` Paolo Bonzini
2014-07-15 19:44 ` [Qemu-devel] [PATCH v2] kvmclock: Ensure time in migration never goes backward Paolo Bonzini
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