linux-kernel - Broken "cpualloc: the allocator" patch

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Date:	Tue, 4 Nov 2008 06:42:37 +0300
From:	Alexey Dobriyan <adobriyan@...il.com>
To:	cl@...ux-foundation.org, rusty@...tcorp.com.au
Cc:	akpm@...ux-foundation.org, linux-kernel@...r.kernel.org
Subject: Broken "cpualloc: the allocator" patch

next-20081103 fails to boot for me because of (1). Commit right before it
boot normally. It hangs right after "Booting the kernel" with the only message

	PANIC: early exception 06 rip 10:ffffffff80523801 error 0 cr2 0

x86_64, no debugging config (all debugging fails same way)
Core 2 Duo, NR_CPUS=2.

1.

192ed0da59d0a13f6db0d7924b1cb72ecadcd1e7 is first bad commit
commit 192ed0da59d0a13f6db0d7924b1cb72ecadcd1e7
Author: Christoph Lameter <cl@...ux-foundation.org>
Date:   Mon Oct 27 14:45:46 2008 -0500

    cpualloc: the allocator
    
    The per cpu allocator allows dynamic allocation of memory on all
    processors simultaneously.  A bitmap is used to track used areas.  The
    allocator implements tight packing to reduce the cache footprint and
    increase speed since cacheline contention is typically not a concern for
    memory mainly used by a single cpu.  Small objects will fill up gaps left
    by larger allocations that required alignments.
    
    The size of the cpu_alloc area can be changed via the percpu=xxx kernel
    parameter.
    
    Acked-by: Rusty Russell <rusty@...tcorp.com.au>
    Signed-off-by: Christoph Lameter <cl@...ux-foundation.org>
    Signed-off-by: Andrew Morton <akpm@...ux-foundation.org>

:040000 040000 68e7b2e64f11ae322c45caa3993bd6017eff1708 b38c34905a19ed702c797b697823107c2269ad1e M	include
:040000 040000 9d4981a79d91b917c43869ca59e16a45d77f4698 e59d5cf6ba16887485ff1d26f4552ce187e2ba66 M	init
:040000 040000 1f726d0030ec1ebf2f30768e88495dab74a56627 93d9b5f16b2cad3a435ae33f569ff7814070e58b M	mm
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