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Date:	Thu, 03 Apr 2014 17:12:02 -0700
From:	"H. Peter Anvin" <>
To:	"Li, Aubrey" <>,
	Steven Rostedt <>
CC:	Ingo Molnar <>,
	Linus Torvalds <>,
	LKML <>,
	Thomas Gleixner <>,
	Matthew Garrett <>
Subject: Re: [BUG] x86: reboot doesn't reboot

On 04/03/2014 04:52 PM, Li, Aubrey wrote:
> On 2014/4/4 7:40, Steven Rostedt wrote:
>> On Fri, 04 Apr 2014 07:23:32 +0800
>> "Li, Aubrey" <> wrote:
>>> Can you please send the dmi table out?
>> I already did as a gz attachment to H. Peter. You were on the Cc, did
>> you not receive it?
> Oh, I got it. This is a Preproduction machine.
> When reboot failed via a method (=e or =p), there are two case.
> Case 1: this method do nothing, pass the attempt chance to the next method
> Case 2: this method hangs the system
> I want to know if CF9 is case 1 or case 2. Could you please try the following
> patch *without* any reboot parameters?
> (1) If we didn't see any string, then EFI hangs your box.
> (2) if we see the first string but not the second one, CF9 hangs your box
> (3) if we see both, couldn't be, because BIOS works on your box.

Given that this machine doesn't have EFI, it seems kind of obvious, no?


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