From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
To: //-//ani Nemati <hani.nemati@gmail.com>
Cc: qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] Infinite IRQ injection when trying windows 10
Date: Wed, 19 Oct 2016 19:59:56 +0100 [thread overview]
Message-ID: <20161019185956.GH2035@work-vm> (raw)
In-Reply-To: <CA+VxTNSGZ=50Cd7EHjGuhaU4dgg8jFVsX9pn=VOqmQJUaUQJPw@mail.gmail.com>
* //-//ani Nemati (hani.nemati@gmail.com) wrote:
> Hi,
>
> Recently I was trying windows 10 on top of Qemu-KVM and I saw 4% of CPU is
> being used all the time even when the windows VM is idle. I tested it for
> nested VM (Linux(L0)->Linux(L1)->windows(L2)) and I saw CPU usage increased
> upto 45%. I traced my host and I saw there is an infinite interrupt loop
> which injected by qemu main process to my windows VM. I also traced the
> windows machine and I saw System process is handling that interrupt. The
> main qemu process injects IRQ 209 periodically. I wonder if it is a
> bug!!!!!
What's the qemu commandline you're using and what version of qemu?
Also, what host hardware?
Dave
> Cheers,
> Hani
--
Dr. David Alan Gilbert / dgilbert@redhat.com / Manchester, UK
next prev parent reply other threads:[~2016-10-19 19:00 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-19 17:19 [Qemu-devel] Infinite IRQ injection when trying windows 10 //-//ani Nemati
2016-10-19 18:59 ` Dr. David Alan Gilbert [this message]
2016-10-19 19:08 ` //-//ani Nemati
2016-10-20 8:05 ` Dr. David Alan Gilbert
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