linux-kernel - [GIT PULL] kmemcheck updates for -tip

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Date:	Sun, 22 Feb 2009 14:57:39 +0100
From:	Vegard Nossum <vegard.nossum@...il.com>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	Pekka Enberg <penberg@...helsinki.fi>, linux-kernel@...r.kernel.org
Subject: [GIT PULL] kmemcheck updates for -tip

Hi,

Here are the latest kmemcheck developments. Changes are basically:

1. Bitfield annotations.
2. Fix REP handling on P4s.
3. Page allocator hooks.

At boot, I get two false positives, in copy_mount_options() and
__dequeue_signal(). I've also seen two spontaneous floods of warnings from
somewhere in aio code, but I couldn't pinpoint exactly why things went
wrong. I guess it will need a bit more research.


Vegard


The following changes since commit 2215d76c949375d38b33f32580908accfffbb461:
  Ingo Molnar (1):
        Merge branch 'x86/core' into kmemcheck

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/vegard/kmemcheck.git for-tip

Vegard Nossum (12):
      kmemcheck: bitfield API
      net: use kmemcheck bitfields API for skbuff
      net: annotate bitfields in struct inet_sock
      ieee1394: annotate bitfield
      ieee1394/csr1212: fix false positive kmemcheck report
      kmemcheck: annotate inet_timewait_sock bitfields
      kmemcheck: disable fast string operations on P4 CPUs
      kmemcheck: rip out REP instruction emulation
      kmemcheck: add hooks for page- and sg-dma-mappings
      kmemcheck: don't track allocated page tables
      kmemcheck: add hooks for the page allocator
      kmemcheck: depend on !SLUB_DEBUG_ON

 arch/x86/Kconfig.debug             |    2 +-
 arch/x86/include/asm/dma-mapping.h |    6 ++
 arch/x86/include/asm/thread_info.h |    4 +-
 arch/x86/kernel/cpu/intel.c        |   23 +++++++
 arch/x86/mm/kmemcheck/kmemcheck.c  |  121 +-----------------------------------
 arch/x86/mm/kmemcheck/opcode.c     |   13 +----
 arch/x86/mm/kmemcheck/opcode.h     |    3 +-
 arch/x86/mm/kmemcheck/shadow.c     |    8 +++
 arch/x86/mm/pgtable.c              |   12 ++--
 drivers/ieee1394/csr1212.c         |    2 +
 drivers/ieee1394/nodemgr.c         |    7 ++-
 include/linux/gfp.h                |    5 ++
 include/linux/kmemcheck.h          |   72 ++++++++++++++++++++--
 include/linux/skbuff.h             |   33 ++++++----
 include/net/inet_sock.h            |   26 +++++---
 include/net/inet_timewait_sock.h   |   11 ++-
 mm/kmemcheck.c                     |   45 ++++++++++----
 mm/page_alloc.c                    |    8 +++
 mm/slab.c                          |   15 +++--
 mm/slub.c                          |   23 +++++--
 net/core/skbuff.c                  |    8 +++
 net/ipv4/inet_timewait_sock.c      |    3 +
 22 files changed, 252 insertions(+), 198 deletions(-)
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