linux-kernel - Re: [patch 0/3] Per cpu relocation to ZERO and x86_32 percpu ops on x86

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Message-ID: <20071130204355.GA31865@elte.hu>
Date:	Fri, 30 Nov 2007 21:43:55 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Christoph Lameter <clameter@....com>
Cc:	Rusty Russell <rusty@...tcorp.com.au>, Andi Kleen <ak@...e.de>,
	Jeremy Fitzhardinge <jeremy@...p.org>,
	linux-kernel@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [patch 0/3] Per cpu relocation to ZERO and x86_32 percpu ops
	on x86_64


btw., this is the list of patches i've picked up for testing:

modules-include-sectionsh-to-avoid-defining-linker-variables.patch
modules-handle-symbols-that-have-a-zero-value.patch
modules-fold-percpu_modcopy-into-modulec-and-get-rid-of-the-macro-from-hell.patch

percpu1-percpu-use-a-kconfig-variable-to-signal-arch-specific-percpu-setup.patch
percpu1-percpu-move-arch-xx-per-cpu-xx-definitions-into-linux-percpu-h.patch
percpu1-percpu-make-the-asm-generic-percpu-h-more-generic-.patch
percpu1-x86-32-use-generic-percpu-h.patch
percpu1-x86-64-use-generic-percpu.patch
percpu1-s390-use-generic-percpu.patch
percpu1-powerpc-use-generic-per-cpu.patch
percpu1-sparc64-use-generic-percpu.patch
percpu1-ia64-use-generic-percpu.patch
percpu1-x86-unify-percpu-h.patch

percpu2-percpu-infrastructure-to-rebase-the-per-cpu-area-to-0ul.patch
percpu2-x86-64-declare-pda-as-per-cpu-data-thereby-moving-it-into-the-cpu-area.patch
percpu2-x86-64-make-the-x86-32-percpu-operations-usable-on-x86-64.patch

the first 3 are from -mm, the rest from lkml. This series applied 
cleanly without any rejects but i still got the spontaneous reboot 
during bootup on UP 32-bit x86.

So either i'm still missing some essential patch, or this tree somehow 
triggers the problem more likely than in -mm. I've bisected it down to:

 percpu1-percpu-move-arch-xx-per-cpu-xx-definitions-into-linux-percpu-h.patch

that patch looks harmless though. Anyway, we can certainly revisit this 
issue after you get back on Dec 13th.

	Ingo
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