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Message-ID: <20090222170044.GC6003@nowhere> Date: Sun, 22 Feb 2009 18:00:45 +0100 From: Frederic Weisbecker <fweisbec@...il.com> To: Ingo Molnar <mingo@...e.hu> Cc: Vegard Nossum <vegard.nossum@...il.com>, Pekka Enberg <penberg@...helsinki.fi>, linux-kernel@...r.kernel.org Subject: Re: [GIT PULL] kmemcheck updates for -tip On Sun, Feb 22, 2009 at 05:44:19PM +0100, Ingo Molnar wrote: > > * Vegard Nossum <vegard.nossum@...il.com> wrote: > > > 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(-) > > Pulled into tip:kmemcheck and started testing it, thanks Vegard! > > Ingo BTW, I just tested kmemcheck (without these fixes pulled) and encountered some troubles with the function graph tracer which hangs during the self tests. As well as a message from hrtimer which tells its interrupt is too slow. Well, I'm pulling latest -tip and will see. > -- > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@...r.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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