From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753904AbYKDDjd (ORCPT ); Mon, 3 Nov 2008 22:39:33 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752565AbYKDDjY (ORCPT ); Mon, 3 Nov 2008 22:39:24 -0500 Received: from nf-out-0910.google.com ([64.233.182.186]:56458 "EHLO nf-out-0910.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752536AbYKDDjX (ORCPT ); Mon, 3 Nov 2008 22:39:23 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=date:from:to:cc:subject:message-id:mime-version:content-type :content-disposition:user-agent; b=v6nvlqV0MVKbNamqFwhMuHcO4Q6pOxjtoVe1Z2d5St4slEu+mFb6d4AWR6JfCjdaAJ 7wXDGugKURVyoEw4LEkYDBA3AHAzAZu9ysmoUGXI9JO64JxllilhZ9BcKz1B3hcQxwOd nV0V+XhJx9Zr5nXWJ1aSHfAYLKY9EY6dTxxiE= Date: Tue, 4 Nov 2008 06:42:37 +0300 From: Alexey Dobriyan 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 Message-ID: <20081104034237.GA15227@x200.localdomain> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.18 (2008-05-17) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 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 Signed-off-by: Christoph Lameter Signed-off-by: Andrew Morton :040000 040000 68e7b2e64f11ae322c45caa3993bd6017eff1708 b38c34905a19ed702c797b697823107c2269ad1e M include :040000 040000 9d4981a79d91b917c43869ca59e16a45d77f4698 e59d5cf6ba16887485ff1d26f4552ce187e2ba66 M init :040000 040000 1f726d0030ec1ebf2f30768e88495dab74a56627 93d9b5f16b2cad3a435ae33f569ff7814070e58b M mm