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From: Borislav Petkov <bp@alien8.de>
To: lkml <linux-kernel@vger.kernel.org>, Paolo Bonzini <pbonzini@redhat.com>
Cc: "Peter Zijlstra" <peterz@infradead.org>,
	"Steven Rostedt" <rostedt@goodmis.org>, x86-ml <x86@kernel.org>,
	kvm@vger.kernel.org, "Jörg Rödel" <joro@8bytes.org>
Subject: Re: __schedule #DF splat
Date: Fri, 27 Jun 2014 12:18:31 +0200	[thread overview]
Message-ID: <20140627101831.GB23153@pd.tnic> (raw)
In-Reply-To: <20140625202650.GC13845@pd.tnic>

On Wed, Jun 25, 2014 at 10:26:50PM +0200, Borislav Petkov wrote:
> On Wed, Jun 25, 2014 at 05:32:28PM +0200, Borislav Petkov wrote:
> > Hi guys,
> > 
> > so I'm looking at this splat below when booting current linus+tip/master
> > in a kvm guest. Initially I thought this is something related to the
> > PARAVIRT gunk but it happens with and without it.
> 
> Ok, here's a cleaner splat. I went and rebuilt qemu to latest master
> from today to rule out some breakage there but it still fires.

Ok, another observation: I was using qemu from sources from the other day:

v2.0.0-1806-g2b5b7ae917e8

Switching back to the installed one:

$ qemu-system-x86_64 --version
QEMU emulator version 1.7.1 (Debian 1.7.0+dfsg-6), Copyright (c) 2003-2008 Fabrice Bellard

fixes the issue.

Joerg says I should bisect but I'm busy with other stuff. If people are
interested in chasing this further, I could free up some time to do
so...

-- 
Regards/Gruss,
    Boris.

Sent from a fat crate under my desk. Formatting is fine.
--

  reply	other threads:[~2014-06-27 10:18 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-06-25 15:32 __schedule #DF splat Borislav Petkov
2014-06-25 20:26 ` Borislav Petkov
2014-06-27 10:18   ` Borislav Petkov [this message]
2014-06-27 11:41     ` Paolo Bonzini
2014-06-27 11:55       ` Borislav Petkov
2014-06-27 12:01         ` Paolo Bonzini
2014-06-27 12:10           ` Borislav Petkov
2014-06-28 11:44             ` Borislav Petkov
2014-06-29  6:46               ` Gleb Natapov
2014-06-29  9:56                 ` Jan Kiszka
2014-06-29 10:24                   ` Gleb Natapov
2014-06-29 10:31                     ` Jan Kiszka
2014-06-29 10:53                       ` Gleb Natapov
2014-06-29 10:59                         ` Jan Kiszka
2014-06-29 11:51                           ` Borislav Petkov
2014-06-29 12:22                             ` Jan Kiszka
2014-06-29 13:14                               ` Borislav Petkov
2014-06-29 13:42                                 ` Gleb Natapov
2014-06-29 14:01                                   ` Borislav Petkov
2014-06-29 14:27                                     ` Gleb Natapov
2014-06-29 14:32                                       ` Jan Kiszka
2014-06-29 14:51                                         ` Jan Kiszka
2014-06-29 15:12                                           ` [PATCH] KVM: SVM: Fix CPL export via SS.DPL Jan Kiszka
2014-06-29 18:00                                             ` Borislav Petkov
2014-06-30 15:01                                             ` Paolo Bonzini
2014-06-30 15:03                                               ` Jan Kiszka
2014-06-30 15:15                                                 ` Borislav Petkov
2014-06-30 15:25                                                   ` Gleb Natapov
2014-06-30 15:26                                                 ` Paolo Bonzini
2014-06-29 13:46                                 ` __schedule #DF splat Borislav Petkov

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