LKML Archive on
help / color / mirror / Atom feed
From: Alexey Dobriyan <>
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.


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
    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

             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

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20081104034237.GA15227@x200.localdomain \ \ \ \ \ \
    --subject='Re: Broken "cpualloc: the allocator" patch' \

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).