linux-kernel - Re: [PATCH 3/5] mce-inject: make injected mce valid only during faked handler call

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Date:	Tue, 29 Sep 2009 22:45:34 +0200
From:	Andi Kleen <ak@...ux.intel.com>
To:	Hidetoshi Seto <seto.hidetoshi@...fujitsu.com>
CC:	Huang Ying <ying.huang@...el.com>, Ingo Molnar <mingo@...e.hu>,
	"H. Peter Anvin" <hpa@...or.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 3/5] mce-inject: make injected mce valid only during faked
 handler call

Hidetoshi Seto wrote:
> Andi Kleen wrote:
>>> This has an undesired side-effect: it is possible for it to be
>>> consumed by real machine_check_poll. This may confuse a real system
>>> error and may confuse the mce test suite.
>> You can just disable the poll handler in the test suite. That's
>> what we did.
> 
> I'd like to fix this simply, rather than providing documentation like
> "you should turn off polling before you use the mce-inject."

We already fixed the documentation to include that. mce-inject is not expected
to be used by unskilled users, so relying in documentation is ok.

-Andi
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