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From: Jan Kiszka <jan.kiszka@web.de>
To: "Koehrer Mathias (ETAS/ESS2)" <mathias.koehrer@etas.com>
Cc: "linux-rt-users@vger.kernel.org" <linux-rt-users@vger.kernel.org>
Subject: Re: VirtualBox 4.2.4 freezes PC using RT_PREEMPT kernel
Date: Sat, 15 Dec 2012 11:14:35 +0100	[thread overview]
Message-ID: <50CC4D8B.9050004@web.de> (raw)
In-Reply-To: <F9467A784CC48947B1D879F07370839E0EBCE44D@fe20099s.ecn.etasgroup.com>

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On 2012-12-14 09:58, Koehrer Mathias (ETAS/ESS2) wrote:
> Hi all,
> 
> I have detected the following issue:
> I use an x86 PC using kernel 3.2.34-rt51 and I want to run VirtualBox 4.2.4 using this PC as host.

> However, the PC freezes completely when loading the vbox driver "vboxdrv".
> Using the very same kernel without the RT_PREEMPT patch shows no issues.
> 
> Using an older version of VirtualBox (V4.1.22) works fine as well.
> 
> I know that this might be slightly off-topic. However there might be some RT_PREEMPT users that have detected the same issue and know a solution for this.
> 
> I have attached my kernel .config file.
> 
> Thanks for any feedback on this.

Try enabling lock debugging. Likely there is an incompatibility in the
vbox driver or even a bug, and that may reveal more details.

Otherwise: KVM is the better choice on Linux hosts, and it works fine
over -rt.

Jan



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  reply	other threads:[~2012-12-15 10:14 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-12-14  8:58 VirtualBox 4.2.4 freezes PC using RT_PREEMPT kernel Koehrer Mathias (ETAS/ESS2)
2012-12-15 10:14 ` Jan Kiszka [this message]
  -- strict thread matches above, loose matches on Subject: below --
2012-12-19 14:44 Koehrer Mathias (ETAS/ESS2)
2012-12-20 18:20 ` Thomas Gleixner

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