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

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: <4DEFDD69.7010000@kernel.org>
Date:	Wed, 08 Jun 2011 13:36:57 -0700
From:	Yinghai Lu <yinghai@...nel.org>
To:	Matthew Garrett <mjg59@...f.ucam.org>
CC:	Jim Bos <jim876@...all.nl>, "H. Peter Anvin" <hpa@...ux.intel.com>,
	Ingo Molnar <mingo@...e.hu>,
	Thomas Gleixner <tglx@...utronix.de>,
	Maarten Lankhorst <m.b.lankhorst@...il.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Greg KH <gregkh@...e.de>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: 2.6.39.1 immediately reboots/resets on EFI system

On 06/08/2011 01:30 PM, Matthew Garrett wrote:
> On Wed, Jun 08, 2011 at 01:23:38PM -0700, Yinghai Lu wrote:
>> On 06/08/2011 01:09 PM, Matthew Garrett wrote:
>>> On Wed, Jun 08, 2011 at 01:03:25PM -0700, Yinghai Lu wrote:
>>>> On 06/08/2011 12:52 PM, Matthew Garrett wrote:
>>>>> On Wed, Jun 08, 2011 at 12:48:48PM -0700, Yinghai Lu wrote:
>>>>>> On 06/08/2011 12:38 PM, Matthew Garrett wrote:
>>>>>>> On Wed, Jun 08, 2011 at 12:35:54PM -0700, Yinghai Lu wrote:
>>>>>>>> On 06/08/2011 12:29 PM, Matthew Garrett wrote:
>>>>>>>>>> what former? you can not fix some corner case by breaking most other cases.
>>>>>>>>>
>>>>>>>>> All Dell laptops, all new Apples, some Lenovos, various Intel server 
>>>>>>>>> platforms. That I've found so far.
>>>>>>>>
>>>>>>>> do you mean before that patch, all those machine will not boot linux kernel with UEFI support?
>>>>>>>
>>>>>>> Correct.
>>>>>>
>>>>>> with or without EFI runtime services?
>>>>>
>>>>> They'll boot with noefi, but that's useless because there's then no way 
>>>>> to configure a bootloader.
>>>>
>>>> efibootmgr will need boot services in addition to run-time services?
>>>
>>> No, SetVirtualAddressMap() calls into boot services. This is code, not 
>>> data. We have no control over what it does.
>>
>> Maybe you can parse efimeminfo in arch/x86/boot/compressed/head_64.S to find right decompress position for kernel.
> 
> Hm. I'll take a look into that. Thanks!


or just let bootloader to mark those boot services just like run-time services in e820 table or setupdata?

Yinghai
--
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/