From: Yanmin Zhang <yanmin_zhang@linux.intel.com>
To: Borislav Petkov <bp@alien8.de>
Cc: ShuoX Liu <shuox.liu@intel.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"Luck, Tony" <tony.luck@intel.com>,
Andrew Morton <akpm@linux-foundation.org>,
"andi@firstfloor.org" <andi@firstfloor.org>,
Ingo Molnar <mingo@elte.hu>
Subject: Re: [PATCH v6 2/2] x86 mce: use new printk recursion disabling interface
Date: Thu, 07 Jun 2012 10:13:27 +0800 [thread overview]
Message-ID: <1339035207.14538.240.camel@ymzhang.sh.intel.com> (raw)
In-Reply-To: <20120606152238.GA3874@x1.osrc.amd.com>
On Wed, 2012-06-06 at 17:22 +0200, Borislav Petkov wrote:
> On Wed, Jun 06, 2012 at 04:34:21PM +0800, ShuoX Liu wrote:
> > From: ShuoX Liu <shuox.liu@intel.com>
> >
> > On x86 machines, some times MCE happens just when kernel calls printk
> > to output some log info to serial console, while usually MCE module in
> > kernel is used to print out some hardware error information, such like
> > bad cache or bad memory bank. That causes printk recursion and printk
> > would omit MCE printk output.
> >
> > We hit it when running MTBF testing on Android ATOM mobiles.
> >
> > Here in mce_panic, we choose to disable printk recursion to make sure
> > MCE logs printed out.
>
> Just a minor nitpick: this should say "print_mce" or you can simply
> remove the whole sentence - commit message is fine without it too.
Thanks for your very careful/detailed comments. We would make it perfect.
next prev parent reply other threads:[~2012-06-07 2:12 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-23 1:58 [PATCH] printk: ignore recursion_bug flag when MCE in progress ShuoX Liu
2012-05-23 10:01 ` Borislav Petkov
2012-05-24 0:38 ` Yanmin Zhang
2012-05-24 5:59 ` [PATCH v2] printk: ignore recursion_bug flag in HW error handle process ShuoX Liu
2012-05-24 6:11 ` Borislav Petkov
2012-05-24 22:56 ` Andrew Morton
2012-05-25 0:30 ` Yanmin Zhang
2012-05-25 7:19 ` [PATCH 1/2] printk: add interface for disabling recursion check ShuoX Liu
2012-05-25 7:21 ` [PATCH 2/2] x86 mce: use new printk recursion disabling interface ShuoX Liu
2012-05-25 7:41 ` Borislav Petkov
2012-05-25 8:00 ` ShuoX Liu
2012-05-28 2:07 ` ShuoX Liu
2012-05-30 9:08 ` Borislav Petkov
2012-05-31 0:30 ` Yanmin Zhang
2012-06-04 3:04 ` [PATCH v4 1/2] printk: add interface for disabling recursion check ShuoX Liu
2012-06-04 3:07 ` [PATCH v4 2/2] x86 mce: use new printk recursion disabling interface ShuoX Liu
2012-06-22 23:41 ` Andrew Morton
2012-06-26 20:45 ` Borislav Petkov
2012-05-25 16:09 ` [PATCH 1/2] printk: add interface for disabling recursion check Luck, Tony
2012-05-28 0:30 ` Yanmin Zhang
2012-05-28 2:54 ` [PATCH v3 " ShuoX Liu
2012-05-28 2:56 ` [PATCH v3 2/2] x86 mce: use new printk recursion disabling interface ShuoX Liu
2012-06-04 17:12 ` Borislav Petkov
2012-06-05 0:32 ` Yanmin Zhang
2012-06-05 8:14 ` Borislav Petkov
2012-06-05 9:53 ` [PATCH v5 1/2] printk: add interface for disabling recursion check ShuoX Liu
2012-06-05 9:55 ` [PATCH v5 2/2] x86 mce: use new printk recursion disabling interface ShuoX Liu
2012-06-05 15:15 ` Borislav Petkov
2012-06-06 0:36 ` Yanmin Zhang
2012-06-06 8:31 ` [PATCH v6 1/2] printk: add interface for disabling recursion check ShuoX Liu
2012-06-06 8:34 ` [PATCH v6 2/2] x86 mce: use new printk recursion disabling interface ShuoX Liu
2012-06-06 15:22 ` Borislav Petkov
2012-06-07 2:13 ` Yanmin Zhang [this message]
2012-06-07 2:57 ` [PATCH v7 1/2] printk: add interface for disabling recursion check ShuoX Liu
2012-06-07 3:00 ` [PATCH v7 2/2] x86 mce: use new printk recursion disabling interface ShuoX Liu
2012-06-08 12:34 ` Borislav Petkov
2012-06-25 9:17 ` Ingo Molnar
2012-06-25 13:14 ` Peter Zijlstra
2012-06-26 20:43 ` Borislav Petkov
2012-06-07 13:19 ` [PATCH v7 1/2] printk: add interface for disabling recursion check bing deng
2012-06-07 13:38 ` Borislav Petkov
2012-06-08 12:30 ` Borislav Petkov
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