linux-kernel - Re: [BUG] linux-next: Tree for August 26

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Date:	Thu, 28 Aug 2008 14:23:30 +0000
From:	David Woodhouse <dwmw2@...radead.org>
To:	Stephen Rothwell <sfr@...b.auug.org.au>
Cc:	Arjan van de Ven <arjan@...ux.intel.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Kamalesh Babulal <kamalesh@...ux.vnet.ibm.com>,
	linuxppc-dev@...abs.org, linux-next@...r.kernel.org, mingo@...e.hu
Subject: Re: [BUG] linux-next: Tree for August 26 - Badness at
	kernel/notifier.c:25

On Thu, 2008-08-28 at 00:38 +1000, Stephen Rothwell wrote:
> Hi Arjan,
> 
> On Thu, 28 Aug 2008 00:33:08 +1000 Stephen Rothwell <sfr@...b.auug.org.au> wrote:
> >
> > The original reported trace was during setup_system which is very early in
> > the boot.
> 
> But, of course, that version didn't have the necessary extra dereference
> of the function address ...
> 
> And the later debug patch did not check the address at register time,
> only at notify time.
> 
> The later trace also looks to be early in the boot.

It's isa_bridge_notify(), which is neither within _[se]text nor
_[se]inittext, so the core_kernel_text() function disavows it.

Where are __devinit functions supposed to end up?

 $ egrep _[es]init\|_[es]text\|isa_bridge_notify System.map 
c000000000000000 T _stext
c00000000045d000 T _etext
c000000000463ca8 t .isa_bridge_notify
c00000000063a000 T _sinittext
c00000000067c3bc T _einittext
c00000000071fd80 d isa_bridge_notify

-- 
David Woodhouse                            Open Source Technology Centre
David.Woodhouse@...el.com                              Intel Corporation



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