From: Paolo Bonzini <pbonzini@redhat.com>
To: Zlatko Calusic <zcalusic@bitsync.net>
Cc: kvm@vger.kernel.org
Subject: Re: kvm: zapping shadow pages for mmio generation wraparound
Date: Tue, 23 Jul 2013 13:50:21 +0200 [thread overview]
Message-ID: <51EE6DFD.6080701@redhat.com> (raw)
In-Reply-To: <51ED9CC0.9070405@bitsync.net>
Il 22/07/2013 22:57, Zlatko Calusic ha scritto:
> I'm getting a lot of these in kernel 3.11.0-rc1:
>
> Jul 19 19:53:06 ps kernel: kvm: zapping shadow pages for mmio generation
> wraparound
> Jul 19 22:37:47 ps kernel: kvm: zapping shadow pages for mmio generation
> wraparound
> Jul 20 00:07:24 ps kernel: kvm: zapping shadow pages for mmio generation
> wraparound
> Jul 20 00:11:04 ps kernel: kvm: zapping shadow pages for mmio generation
> wraparound
> Jul 20 00:39:14 ps kernel: kvm: zapping shadow pages for mmio generation
> wraparound
> Jul 21 00:25:32 ps kernel: kvm: zapping shadow pages for mmio generation
> wraparound
>
> There seems to be one line in the kernel log for every reboot of a WinXP
> guest, and I'm getting a bit bored with it. I don't understand what
> those messages mean? What can I do to stop them flooding the log?
>
> Please Cc: (not subscribed)
The log message would let us correlate any reports with a new
optimization (added in 3.11). We will probably downgrade it to
KERN_DEBUG before 3.11 goes out (or otherwise cause it to disappear), in
the meanwhile it's harmless.
Paolo
next prev parent reply other threads:[~2013-07-23 11:56 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-22 20:57 kvm: zapping shadow pages for mmio generation wraparound Zlatko Calusic
2013-07-23 11:50 ` Paolo Bonzini [this message]
2013-07-23 12:35 ` Zlatko Calusic
2014-12-21 6:28 ` Michael Tokarev
2014-12-21 16:13 ` Paolo Bonzini
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