From: Jan Kiszka <jan.kiszka@web.de>
To: Borislav Petkov <bp@alien8.de>
Cc: "Gleb Natapov" <gleb@kernel.org>,
"Paolo Bonzini" <pbonzini@redhat.com>,
lkml <linux-kernel@vger.kernel.org>,
"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: Sun, 29 Jun 2014 14:22:35 +0200 [thread overview]
Message-ID: <53B0050B.90104@web.de> (raw)
In-Reply-To: <20140629115143.GA4362@pd.tnic>
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On 2014-06-29 13:51, Borislav Petkov wrote:
> On Sun, Jun 29, 2014 at 12:59:30PM +0200, Jan Kiszka wrote:
>> Will see what I can do regarding bisecting. That host is a bit slow
>> (netbook), so it may take a while. Boris will probably beat me in
>> this.
>
> Nah, I was about to instrument kvm_multiple_exception() first and am
> slow anyway so... :-)
OK, looks like I won ;): The issue was apparently introduced with "KVM:
x86: get CPL from SS.DPL" (ae9fedc793). Maybe we are not properly saving
or restoring this state on SVM since then.
Need a break, will look into details later.
Jan
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next prev parent reply other threads:[~2014-06-29 12:22 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
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 [this message]
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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