pull request for range-hrtimer updates

pull request for range-hrtimer updates

[Arjan van de Ven]

Hi,

a few changes have been put into the range-hrtimer tree; the first three have been on lkml before, 
the last 2 are build fixes reported in the last few days.... please pull.

The following changes since commit a7cda5d3ae218476927ac3fd9756ea617c4ddfb2:
  Ingo Molnar (1):
        Merge branch 'sched/core'

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/arjan/linux-2.6-hrtimer.git master

Arjan van de Ven (5):
      hrtimer: make the nanosleep() syscall use the per process slack
      hrtimer: make the futex() system call use the per process slack value
      hrtimer: peek at the timer queue just before going idle
      select: fix alpha OSF wrapper
      rangetimer: fix x86 build failure for the !HRTIMERS case

 arch/alpha/kernel/osf_sys.c |   13 +++++++------
 drivers/cpuidle/cpuidle.c   |    7 +++++++
 include/linux/hrtimer.h     |    7 +++++++
 kernel/futex.c              |    6 +++++-
 kernel/hrtimer.c            |   37 ++++++++++++++++++++++++++++++++++++-
 5 files changed, 62 insertions(+), 8 deletions(-)


-- 
Arjan van de Ven 	Intel Open Source Technology Centre
For development, discussion and tips for power savings, 
visit http://www.lesswatts.org

Re: pull request for range-hrtimer updates

[Ingo Molnar]

* Arjan van de Ven <arjan@infradead.org> wrote:

> Hi,
> 
> a few changes have been put into the range-hrtimer tree; the first three have been on lkml before, 
> the last 2 are build fixes reported in the last few days.... please pull.
> 
> The following changes since commit a7cda5d3ae218476927ac3fd9756ea617c4ddfb2:
>   Ingo Molnar (1):
>         Merge branch 'sched/core'
> 
> are available in the git repository at:
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/arjan/linux-2.6-hrtimer.git master
> 
> Arjan van de Ven (5):
>       hrtimer: make the nanosleep() syscall use the per process slack
>       hrtimer: make the futex() system call use the per process slack value
>       hrtimer: peek at the timer queue just before going idle
>       select: fix alpha OSF wrapper
>       rangetimer: fix x86 build failure for the !HRTIMERS case
> 
>  arch/alpha/kernel/osf_sys.c |   13 +++++++------
>  drivers/cpuidle/cpuidle.c   |    7 +++++++
>  include/linux/hrtimer.h     |    7 +++++++
>  kernel/futex.c              |    6 +++++-
>  kernel/hrtimer.c            |   37 ++++++++++++++++++++++++++++++++++++-
>  5 files changed, 62 insertions(+), 8 deletions(-)

pulled into tip/timers/range-hrtimers, thanks Arjan!

	Ingo

Re: pull request for range-hrtimer updates

[Arjan van de Ven]

On Fri, 10 Oct 2008 13:37:49 +0200
Ingo Molnar <mingo@elte.hu> wrote:

> 
> * Ingo Molnar <mingo@elte.hu> wrote:
> 
> > pulled into tip/timers/range-hrtimers, thanks Arjan!
> 
> i have put these latest bits into tip/master today and -tip testing 
> found a boot failure on a 32-bit testbox: a boot crash in 
> hrtimer_interrupt():
> note highres=0 and hpet=disable. You probably need to try these if
> you want to trigger the same crash.
> 
> Reverting these updates from tip/master solves the crash.

yeah there was an interesting race there.
If you go idle the first time it's also the first time you decide to
not do hrtimers anymore.. and my code didn't cope with that well.

please repull
ssh://master.kernel.org/pub/scm/linux/kernel/git/arjan/linux-2.6-hrtimer.git
to also get the fix

-- 
Arjan van de Ven 	Intel Open Source Technology Centre
For development, discussion and tips for power savings, 
visit http://www.lesswatts.org