linux-kernel - Re: BUG: null pointer deref in dmar_ir

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Date:	Thu, 01 Apr 2010 13:04:40 -0700
From:	Suresh Siddha <suresh.b.siddha@...el.com>
To:	"Jan.Grossmann@...lnet.net" <Jan.Grossmann@...lnet.net>
Cc:	"linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
	"jbarnes@...tuousgeek.org" <jbarnes@...tuousgeek.org>,
	"Woodhouse, David" <david.woodhouse@...el.com>,
	"mingo@...e.hu" <mingo@...e.hu>,
	"Han, Weidong" <weidong.han@...el.com>,
	"Song, Youquan" <youquan.song@...el.com>,
	LKML <linux-kernel@...r.kernel.org>,
	"H. Peter Anvin" <hpa@...or.com>,
	"x86@...nel.org" <x86@...nel.org>,
	"stable@...nel.org" <stable@...nel.org>
Subject: Re: BUG: null pointer deref in dmar_ir_support

On Thu, 2010-04-01 at 11:20 -0700, Jan.Grossmann@...lnet.net wrote:
> The patch seems to work,
> but now my kernel won't find any IDE, SATA or USB drives anymore and 
> then i end up with
> 
> Kernel panic - not syncing: VFS: Unable to mount root fs on 
> unknown-block(0,0)

hmm.. This sounds like a modules issue. Jan you were using modules in
your kernel config. You have initrd etc setup properly?

thanks,
suresh

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