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

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: <4AC271EE.30201@linux.intel.com>
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
--
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/