From: Markus Trippelsdorf <markus@trippelsdorf.de>
To: Ingo Molnar <mingo@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>,
Thomas Gleixner <tglx@linutronix.de>,
Peter Zijlstra <peterz@infradead.org>,
LKML <linux-kernel@vger.kernel.org>,
Ingo Molnar <mingo@redhat.com>, Andy Lutomirski <luto@kernel.org>,
Tom Lendacky <thomas.lendacky@amd.com>
Subject: Re: Current mainline git (24e700e291d52bd2) hangs when building e.g. perf
Date: Fri, 8 Sep 2017 13:30:39 +0200 [thread overview]
Message-ID: <20170908113039.GA285@x4> (raw)
In-Reply-To: <20170908103906.GB278@x4>
On 2017.09.08 at 12:39 +0200, Markus Trippelsdorf wrote:
> On 2017.09.08 at 12:35 +0200, Ingo Molnar wrote:
> >
> > * Markus Trippelsdorf <markus@trippelsdorf.de> wrote:
> >
> > > On 2017.09.08 at 11:16 +0200, Borislav Petkov wrote:
> > > > On Fri, Sep 08, 2017 at 10:05:36AM +0200, Borislav Petkov wrote:
> > > > > On Fri, Sep 08, 2017 at 08:26:44AM +0200, Thomas Gleixner wrote:
> > > > > > On Fri, 8 Sep 2017, Markus Trippelsdorf wrote:
> > > > > >
> > > > > > CC+ Borislav. He might have access to such a beast
> > > > >
> > > > > Can I have /proc/cpuinfo and dmesg pls, in order to see whether I have
> > > > > something similar?
> > > > >
> > > > > Private mail's fine too.
> > > >
> > > > So I don't have exactly your model - mine is model 2, stepping 3 but I see
> > > > something strange too, in dmesg:
> > >
> > > I'm pretty sure the bug is in the merged 'x86-mm-for-linus' branch:
> > > Either Andy's "PCID optimized TLB flushing" (would be my guess) or
> > > 'encrypted memory' support by Tom Lendacky.
> > >
> > > (Bisecting is hard, because sometimes I can compile stuff for over 15
> > > minutes without hitting the bug. At other times the machine locks up
> > > hard when starting X11 already.)
> >
> > Do you have the 72c0098d92ce fix?
>
> Yes. The bug still happens on the current git tree (which has the fix
> already):
The bug is definitely caused by Andy Lutomirski's PCID optimized TLB
flushing" patches. Tom is off the hook.
--
Markus
next prev parent reply other threads:[~2017-09-08 11:30 UTC|newest]
Thread overview: 61+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-05 7:27 Current mainline git (24e700e291d52bd2) hangs when building e.g. perf Markus Trippelsdorf
2017-09-05 8:53 ` Peter Zijlstra
2017-09-05 9:55 ` Markus Trippelsdorf
2017-09-06 12:52 ` Thomas Gleixner
2017-09-06 13:15 ` Markus Trippelsdorf
2017-09-07 6:28 ` Markus Trippelsdorf
2017-09-08 5:35 ` Markus Trippelsdorf
2017-09-08 6:26 ` Thomas Gleixner
2017-09-08 8:05 ` Borislav Petkov
2017-09-08 9:16 ` Borislav Petkov
2017-09-08 9:48 ` Markus Trippelsdorf
2017-09-08 10:35 ` Ingo Molnar
2017-09-08 10:39 ` Markus Trippelsdorf
2017-09-08 11:30 ` Markus Trippelsdorf [this message]
2017-09-08 16:12 ` Andy Lutomirski
2017-09-08 17:16 ` Markus Trippelsdorf
2017-09-08 21:47 ` Andy Lutomirski
2017-09-08 21:56 ` Borislav Petkov
2017-09-08 23:07 ` Andy Lutomirski
2017-09-08 23:23 ` Linus Torvalds
2017-09-09 0:00 ` Andy Lutomirski
2017-09-09 1:05 ` Linus Torvalds
2017-09-09 1:39 ` Andy Lutomirski
2017-09-09 17:49 ` Andy Lutomirski
2017-09-09 18:02 ` Linus Torvalds
2017-09-09 6:39 ` Markus Trippelsdorf
2017-09-09 10:18 ` Borislav Petkov
2017-09-09 11:07 ` Markus Trippelsdorf
2017-09-09 13:07 ` Borislav Petkov
2017-09-09 13:37 ` Markus Trippelsdorf
2017-09-09 13:39 ` Markus Trippelsdorf
2017-09-09 14:07 ` Borislav Petkov
2017-09-09 14:20 ` Markus Trippelsdorf
2017-09-09 14:33 ` Borislav Petkov
2017-09-09 14:43 ` Markus Trippelsdorf
2017-09-09 16:32 ` Markus Trippelsdorf
2017-09-09 17:05 ` Borislav Petkov
2017-09-09 17:23 ` Markus Trippelsdorf
2017-09-09 17:36 ` Borislav Petkov
2017-09-09 18:14 ` Markus Trippelsdorf
2017-09-09 18:26 ` Borislav Petkov
2017-09-09 18:46 ` Markus Trippelsdorf
2017-09-09 19:11 ` Borislav Petkov
2017-09-09 19:19 ` Borislav Petkov
2017-09-09 18:26 ` Linus Torvalds
2017-09-09 18:29 ` Borislav Petkov
2017-09-09 18:47 ` Linus Torvalds
2017-09-09 19:09 ` Borislav Petkov
2017-09-09 19:21 ` Linus Torvalds
2017-09-09 19:28 ` Andy Lutomirski
2017-09-09 19:37 ` Borislav Petkov
2017-09-10 4:42 ` Andy Lutomirski
2017-09-10 20:22 ` Peter Zijlstra
2017-09-10 20:25 ` Andy Lutomirski
2017-09-17 17:04 ` Ingo Molnar
2017-09-11 1:12 ` Rik van Riel
2017-09-11 1:46 ` Andy Lutomirski
2017-09-11 15:08 ` Rik van Riel
2017-09-12 7:14 ` Markus Trippelsdorf
2017-09-09 8:13 ` Markus Trippelsdorf
2017-09-08 14:51 ` Borislav Petkov
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