linux-kernel - Re: 2.6.39.1 immediately reboots/resets on EFI system

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Message-ID: <BANLkTiksinSDd9aQP4vSeV-+uV2CtuWTrw@mail.gmail.com>
Date:	Sun, 5 Jun 2011 14:57:45 +0200
From:	Maarten Lankhorst <m.b.lankhorst@...il.com>
To:	Jim Bos <jim876@...all.nl>
Cc:	Matthew Garrett <mjg59@...f.ucam.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Greg KH <gregkh@...e.de>,
	"H. Peter Anvin" <hpa@...ux.intel.com>
Subject: Re: 2.6.39.1 immediately reboots/resets on EFI system

Hi,

2011/6/5 Jim Bos <jim876@...all.nl>:
> On 06/03/2011 04:46 PM, Matthew Garrett wrote:
>> On Fri, Jun 03, 2011 at 04:26:27PM +0200, Jim Bos wrote:
>>> On 06/03/2011 03:33 PM, Matthew Garrett wrote:
>>>> ? You've got 143 boot services/code regions, which is more than I'd
>>>> tested against, so I'm unsure whether we're overflowing something here.
>>>>
>>>
>>> That's seems to be the only EFI patch in 2.6.39.1 and I effectively
>>> removed by =not= applying (skipping) the parts of the 2.6.39.1 patch to
>>> above 3 files.
>>> So yes removing "x86, efi: Retain boot service code until after
>>> switching to virtual mode" indeed fixes the problem for me.
>>
>> Ok, thanks. I'll look into that. Might be best to drop it from stable
>> for the moment until I've made sure it works on machines with excessive
>> maps.
>>
>
> Matthew,
>
> Another datapoint, just tried a 3.0.0-rc1 kernel, good news is that it
> boots.  Maybe the "x86, efi: Merge contiguous memory regions of the same
> type" helps with these large number of maps?
>
> However, there seems to be something else wrong as I get several "BUG:
> Bad page state in process swapper  pfn:00000" which have efi functions
> on the stack, see dmesg output.
For what it's worth, I have noticed the exact same problems here when
booting 2.6.39.1 on an asrock P67 chipset. The reboot on 2.6.39.1 and
the bag page states. I also noticed some instability with 3.0 with it
freezing up, but that's probably related to broken binary nvidia
drivers.

~Maarten
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