linux-kernel - Re: [RFC] x86, NMI, Treat unknown NMI as hardware error

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]

Date:	Thu, 9 Jun 2011 19:22:25 +0400
From:	Cyrill Gorcunov <gorcunov@...il.com>
To:	Don Zickus <dzickus@...hat.com>
Cc:	Huang Ying <ying.huang@...el.com>, Andi Kleen <ak@...ux.intel.com>,
	huang ying <huang.ying.caritas@...il.com>,
	Ingo Molnar <mingo@...e.hu>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Andi Kleen <andi@...stfloor.org>,
	Robert Richter <robert.richter@....com>
Subject: Re: [RFC] x86, NMI, Treat unknown NMI as hardware error

On Thu, Jun 09, 2011 at 08:09:28AM -0400, Don Zickus wrote:
...
> Perhaps I am a bit naive in my belief but I am a little nervous panicing
> all the time on unknown NMIs when we are still chasing missed perf NMIs on
> a loaded box.
> 
> Cheers,
> Don
> 

Agreed, though I always vote for notifier chain (with either CONFIG_ option
or command line one) so there would be a way to turn panic off if needed.
I believe there is a way to make such NMI handler being with highest priority
and Ying will be able to do with it whatever he wants -- panic, warning,
or even immediate reboot, whatever ;)

	Cyrill
--
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/