linux-kernel - Re: [PATCH -v3] perf, x86: try to handle unknown nmis with running perfctrs

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20100824184658.GB4879@redhat.com>
Date:	Tue, 24 Aug 2010 14:46:58 -0400
From:	Don Zickus <dzickus@...hat.com>
To:	Cyrill Gorcunov <gorcunov@...il.com>
Cc:	Robert Richter <robert.richter@....com>,
	Ingo Molnar <mingo@...e.hu>,
	Peter Zijlstra <peterz@...radead.org>,
	Lin Ming <ming.m.lin@...el.com>,
	"fweisbec@...il.com" <fweisbec@...il.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"Huang, Ying" <ying.huang@...el.com>,
	Yinghai Lu <yinghai@...nel.org>,
	Andi Kleen <andi@...stfloor.org>
Subject: Re: [PATCH -v3] perf, x86: try to handle unknown nmis with running
 perfctrs

On Tue, Aug 24, 2010 at 09:28:06PM +0400, Cyrill Gorcunov wrote:
> On Tue, Aug 24, 2010 at 07:15:05PM +0200, Robert Richter wrote:
> > On 23.08.10 04:53:39, Ingo Molnar wrote:
> > > Ok, to not hold up the perf/urgent flow i zapped these two commits for 
> > > the time being:
> > > 
> > >  4a31beb: perf, x86: Fix handle_irq return values
> > >  8e3e42b: perf, x86: Try to handle unknown nmis with an enabled PMU
> > 
> > Ingo, are those commits in some branch to fetch them for testing? I
> > did not find them in tip/master.
> > 
> > Thanks,
> > 
> > -Robert
> > 
> > -- 
> > Advanced Micro Devices, Inc.
> > Operating System Research Center
> >
> 
> Robert, they should be in -tip tree, I have
> 
> | commit 4a31bebe71ab2e4f6ecd6e5f9f2ac9f0ff38ff76
> | Author: Peter Zijlstra <a.p.zijlstra@...llo.nl>
> | Date:   Thu Aug 19 16:28:00 2010 +0200
> |
> |    perf, x86: Fix handle_irq return values

Has anyone else seen kernel panics when enabling the LOCKUP_DETECTOR or
apply Robert's patch?  I keep getting a panic with unable to handle paging
request everytime either Robert's patch or the lockup detector uses
__get_cpu_var().  And only on 2.6.36 code.

Cheers,
Don
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/