From: Marcelo Tosatti <mtosatti@redhat.com>
To: Tomasz Grabiec <tgrabiec@cloudius-systems.com>,
Paolo Bonzini <pbonzini@redhat.com>
Cc: kvm@vger.kernel.org
Subject: Re: [PATCH] KVM: x86: fix TSC matching
Date: Fri, 15 Aug 2014 13:54:17 -0300 [thread overview]
Message-ID: <20140815165417.GA29279@amt.cnet> (raw)
In-Reply-To: <1403595763-2751-1-git-send-email-tgrabiec@cloudius-systems.com>
Ping on integration.
On Tue, Jun 24, 2014 at 09:42:43AM +0200, Tomasz Grabiec wrote:
> I've observed kvmclock being marked as unstable on a modern
> single-socket system with a stable TSC and qemu-1.6.2 or qemu-2.0.0.
>
> The culprit was failure in TSC matching because of overflow of
> kvm_arch::nr_vcpus_matched_tsc in case there were multiple TSC writes
> in a single synchronization cycle.
next prev parent reply other threads:[~2014-08-15 16:54 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-06-24 7:42 [PATCH] KVM: x86: fix TSC matching Tomasz Grabiec
2014-06-30 8:43 ` Tomasz Grabiec
2014-06-30 11:41 ` Paolo Bonzini
2014-06-30 17:45 ` Marcelo Tosatti
2014-08-15 16:54 ` Marcelo Tosatti [this message]
2014-08-17 8:54 ` Paolo Bonzini
2014-08-26 9:08 ` Pekka Enberg
2014-08-26 11:43 ` Paolo Bonzini
2014-09-03 19:02 ` Marcelo Tosatti
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