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From: Alexey Dobriyan <adobriyan@gmail.com>
To: cl@linux-foundation.org, rusty@rustcorp.com.au
Cc: akpm@linux-foundation.org, linux-kernel@vger.kernel.org
Subject: Broken "cpualloc: the allocator" patch
Date: Tue, 4 Nov 2008 06:42:37 +0300 [thread overview]
Message-ID: <20081104034237.GA15227@x200.localdomain> (raw)
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@linux-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@rustcorp.com.au>
Signed-off-by: Christoph Lameter <cl@linux-foundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
:040000 040000 68e7b2e64f11ae322c45caa3993bd6017eff1708 b38c34905a19ed702c797b697823107c2269ad1e M include
:040000 040000 9d4981a79d91b917c43869ca59e16a45d77f4698 e59d5cf6ba16887485ff1d26f4552ce187e2ba66 M init
:040000 040000 1f726d0030ec1ebf2f30768e88495dab74a56627 93d9b5f16b2cad3a435ae33f569ff7814070e58b M mm
next reply other threads:[~2008-11-04 3:39 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-11-04 3:42 Alexey Dobriyan [this message]
2008-11-04 15:38 ` Christoph Lameter
2008-11-04 15:56 ` Christoph Lameter
2008-11-05 8:42 ` Alexey Dobriyan
2008-11-05 8:57 ` Pekka J Enberg
2008-11-06 2:30 ` Johannes Weiner
2008-11-05 13:45 ` Christoph Lameter
2008-11-06 16:31 ` Alexey Dobriyan
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