From: Marcelo Tosatti <mtosatti@redhat.com>
To: David Matlack <dmatlack@google.com>
Cc: pbonzini@redhat.com, kvm@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] kvm: x86: add trace event for pvclock updates
Date: Mon, 10 Nov 2014 23:18:50 -0200 [thread overview]
Message-ID: <20141111011850.GA12749@amt.cnet> (raw)
In-Reply-To: <1415216802-19201-1-git-send-email-dmatlack@google.com>
On Wed, Nov 05, 2014 at 11:46:42AM -0800, David Matlack wrote:
> The new trace event records:
> * the id of vcpu being updated
> * the pvclock_vcpu_time_info struct being written to guest memory
>
> This is useful for debugging pvclock bugs, such as the bug fixed by
> "[PATCH] kvm: x86: Fix kvm clock versioning.".
>
> Signed-off-by: David Matlack <dmatlack@google.com>
So you actually hit that bug in practice? Can you describe the
scenario?
next prev parent reply other threads:[~2014-11-11 1:18 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-05 19:46 [PATCH] kvm: x86: add trace event for pvclock updates David Matlack
2014-11-06 10:53 ` Paolo Bonzini
2014-11-11 1:18 ` Marcelo Tosatti [this message]
2014-11-12 18:00 ` David Matlack
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