linux-kernel - Re: using mce_inject I get: RIP 10:<ffffffffa012c909> {ttm_bo

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Message-ID: <20110821221602.GK25996@one.firstfloor.org>
Date:	Mon, 22 Aug 2011 00:16:02 +0200
From:	Andi Kleen <andi@...stfloor.org>
To:	"Justin P. Mattock" <justinmattock@...il.com>
Cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Andi Kleen <andi@...stfloor.org>, tony.luck@...el.com
Subject: Re: using mce_inject I get: RIP 10:<ffffffffa012c909> {ttm_bo_unref+0xf/0x45 [ttm]}

On Sat, Aug 20, 2011 at 07:31:06PM -0700, Justin P. Mattock wrote:
> not sure if I am running mce_test correctly, but during its routine of 
> testing things I do get a pause with everything, then the below shows up 
> in dmesg..:

The message is expected, but there should be no noticeable
pause.

-Andi

> 
> http://fpaste.org/kMRd/
> 
> 
> [ 1810.670434] Triggering MCE exception on CPU 1
> [ 1810.670462] [Hardware Error]: CPU 1: Machine Check Exception: 6 Bank 
> 4: b300000000000000
> [ 1810.670467] [Hardware Error]: RIP 73:<0000000012343434>
> [ 1810.670470] [Hardware Error]: TSC 38d1002c216
> [ 1810.670474] [Hardware Error]: PROCESSOR 0:6f6 TIME 1313892803 SOCKET 
> 0 APIC 1
> [ 1810.670477] [Hardware Error]: Run the above through 'mcelog --ascii'
> [ 1810.670481] [Hardware Error]: Machine check: Processor context corrupt
> [ 1810.670483] [Hardware Error]: Fake kernel panic: Fatal Machine check
> [ 1810.670495] MCE exception done on CPU 1
> [ 1819.064721] Triggering MCE exception on CPU 1
> 
> seems light of a pause, then everything resumes properly(music, etc..).
> Is this something that needs attention, or are these tests as extreme as 
> can be, and should simply be ignored?
> (Note: if there is a mce list somewhere let me know so I direct this to 
> the proper people)
> 
> Justin P. Mattock
> 

-- 
ak@...ux.intel.com -- Speaking for myself only.
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