linux-kernel - Re: BUG-lockdep and freeze (was: Arrr! Linux 2.6.18)

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Message-Id: <4523BE20.76E4.0078.0@novell.com>
Date:	Wed, 04 Oct 2006 13:58:56 +0200
From:	"Jan Beulich" <jbeulich@...ell.com>
To:	"Andi Kleen" <ak@...e.de>
Cc:	"Ingo Molnar" <mingo@...e.hu>,
	"Eric Rannaud" <eric.rannaud@...il.com>,
	"Andrew Morton" <akpm@...l.org>,
	"Linus Torvalds" <torvalds@...l.org>,
	"Chandra Seetharaman" <sekharan@...ibm.com>,
	"Linux Kernel Mailing List" <linux-kernel@...r.kernel.org>,
	<nagar@...son.ibm.com>
Subject: Re: BUG-lockdep and freeze (was: Arrr! Linux 2.6.18)

>> >Proposed patch appended. Jan, what do you think?
>> 
>> As said above - I thought we added zero-termination already.
>
>For head.S but not for kernel_thread I think. At least I can't
>find any existing code for kernel_thread().

2.6.18-git11 (i386) already has an annotated version of
kernel_thread_helper() in entry.S, including the pushing of a
fake (zero) return address. x86-64 has child_rip with the
added push even in original 2.6.18.

Jan
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