From: Gleb Natapov <gleb@redhat.com>
To: Dan Aloni <alonid@stratoscale.com>
Cc: linux-kernel@vger.kernel.org, kvm@vger.kernel.org,
kgdb-bugreport@lists.sourceforge.net, x86@kernel.org,
pbonzini@redhat.com, tglx@linutronix.de, mingo@redhat.com,
hpa@zytor.com, Jason Wessel <jason.wessel@windriver.com>
Subject: Re: KVM/KGDB integration
Date: Wed, 27 Nov 2013 12:08:25 +0200 [thread overview]
Message-ID: <20131127100825.GR959@redhat.com> (raw)
In-Reply-To: <1384872810-29492-1-git-send-email-alonid@stratoscale.com>
Copying KGDB maintainer to get some feedback.
On Tue, Nov 19, 2013 at 04:53:28PM +0200, Dan Aloni wrote:
> Hello,
>
> The following two patches address an integration issue between KVM and
> KGDB. The issue described in the patches can be triggered with vanilla
> kernels that enable KGDB and KVM together on x86 (more specifically,
> we bump into this with Fedora's 3.11 kernel from FC19).
>
> On a kernel enabled with KGDB, running with kvm-unit-tests should
> reproduce the issue. On VM hosts servers where an admin accidently
> left an active KGDB, and unprivilged guest might be able to bring
> the host down.
>
> Patches apply to linux-next and earlier kernels.
--
Gleb.
prev parent reply other threads:[~2013-11-27 10:08 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-11-19 14:53 (unknown), Dan Aloni
2013-11-19 14:53 ` Dan Aloni
2013-11-19 14:53 ` [PATCH linux-next 1/2] kgdb-x86: allow to temporarily disable trap activation Dan Aloni
2013-11-19 14:53 ` [PATCH linux-next 2/2] kvm-x86: emulator: disable kgdb-x86 on fastop and fpe flush Dan Aloni
2013-11-19 15:02 ` Paolo Bonzini
2013-11-27 10:08 ` Gleb Natapov [this message]
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