linux-kernel - Re: ohci1394_dma=early crash since 2.6.32 (was Re: [Bug #14487] PANIC: early exception 08 rip 246:10 error ffffffff810251b5 cr2 0)

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Message-Id: <4B6A9D4C020000780002DA99@vpn.id2.novell.com>
Date:	Thu, 04 Feb 2010 09:11:24 +0000
From:	"Jan Beulich" <JBeulich@...ell.com>
To:	"Justin P. Mattock" <justinmattock@...il.com>
Cc:	"Ingo Molnar" <mingo@...e.hu>, "Dan Carpenter" <error27@...il.com>,
	<bernhard.kaindl@....net>, "Thomas Gleixner" <tglx@...utronix.de>,
	<linux1394-devel@...ts.sourceforge.net>,
	"Stefan Richter" <stefanr@...6.in-berlin.de>,
	"Rafael Wysocki" <rjw@...k.pl>,
	"Kernel Testers List" <kernel-testers@...r.kernel.org>,
	"Linux Kernel Mailing List" <linux-kernel@...r.kernel.org>,
	<ebiderman@...ssion.com>, <hpa@...or.com>
Subject: Re: ohci1394_dma=early crash since 2.6.32 (was Re: [Bug	
	 #14487] PANIC: early exception 08 rip 246:10 error	
	 ffffffff810251b5 cr2 0)

>>> "Justin P. Mattock" <justinmattock@...il.com> 04.02.10 10:04 >>>
>a quick google on this showed somewhere
>at bootmem.c any ideas on this or where
>this might be caused besides fixmap?
>(or is fixmap the main location?);

__native_set_fixmap() -> set_pte_vaddr() -> set_pte_vaddr_pud() ->
fill_pte() -> spp_getpage() -> alloc_bootmem_pages() -> panic().

Jan

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