From: Marcelo Tosatti <mtosatti@redhat.com>
To: Gleb Natapov <gleb@redhat.com>
Cc: Sasha Levin <levinsasha928@gmail.com>,
Avi Kivity <avi@redhat.com>,
kvm@vger.kernel.org, Dave Jones <davej@redhat.com>
Subject: Re: Guest hangs after some stress tests
Date: Fri, 25 May 2012 12:37:57 -0300 [thread overview]
Message-ID: <20120525153756.GA11355@amt.cnet> (raw)
In-Reply-To: <20120517201904.GB26391@redhat.com>
On Thu, May 17, 2012 at 11:19:04PM +0300, Gleb Natapov wrote:
> On Thu, May 17, 2012 at 10:14:35PM +0200, Sasha Levin wrote:
> > On Thu, May 17, 2012 at 10:05 PM, Gleb Natapov <gleb@redhat.com> wrote:
> > > On Thu, May 17, 2012 at 09:49:08PM +0200, Sasha Levin wrote:
> > >> Hi all,
> > >>
> > >> I've observed a guest hang after putting a little stress testing on
> > >> it. It basically hangs in ~10 secs after running several trinity
> > >> instances inside a KVM tools guest.
> > >>
> > > And do you set hypervisor bit in KVM tool?
> >
> > We're basically forwarding the cpuid of the host, so I assume that no?
> You really should, but hang shouldn't happen anyway.
>
> --
> Gleb.
If kvmclock is not enabled a number of problems arise (miscalibrated
loops per jiffy, sched_clock using tsc's out of sync on smp). Should
set the hypervisor cpuid bit (see 49ab56ac6e1b907b7da).
prev parent reply other threads:[~2012-05-25 15:45 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-17 19:49 Guest hangs after some stress tests Sasha Levin
2012-05-17 20:05 ` Gleb Natapov
2012-05-17 20:14 ` Sasha Levin
2012-05-17 20:19 ` Gleb Natapov
2012-05-25 15:37 ` Marcelo Tosatti [this message]
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