We are pleased to announce the 2.6.23.9-rt13 tree, which can be
downloaded from the location:
http://www.kernel.org/pub/linux/kernel/projects/rt/
Changes since 2.6.23.9-rt12
- Backported the new RT Balancing code from sched-devel
New changes by Steven Rostedt, Gregory Haskins,
Ingo Molnar, and Dmitry Adamushko
- 2 dimension CPU Prio RT balancing search (Gregory Haskins)
- ARM compile fix (Kevin Hilman)
- Disable HPET legacy replacement for kdump (OGAWA Hirofumi)
- disable HPET on shutdown (OGAWA Hirofumi)
- fix for futex_wait signal stack corruption (Steven Rostedt)
- Handle IRQ_PENDING for simple irq thread (Steven Rostedt)
- latency tracer updates (Daniel Walker)
- Remove warning in local_bh_enable (Kevin Hilman)
- use real time pcp locking for page draining during cpu (Andi Kleen)
- Revert lazy disable irq from simple irq handler (Steven Rostedt)
- AT91 switch to edge from simple irq (Remy Bohmer)
to build a 2.6.23.9-rt13 tree, the following patches should be applied:
http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.23.9.tar.bz2
http://www.kernel.org/pub/linux/kernel/projects/rt/patch-2.6.23.9-rt13.bz2
And like always, my RT version of Matt Mackall's ketchup will get this
for you nicely:
http://people.redhat.com/srostedt/rt/tools/ketchup-0.9.8-rt2
The broken out patches are also available.
-- Steve
Hello Steven,
If I compile -rt13 I get some compile warnings on ARM (AT91):
1) This one did not exist in rt1:
In file included from kernel/sched.c:911:
kernel/sched_rt.c: In function 'dec_rt_tasks':
kernel/sched_rt.c:88: warning: unused variable 'highest_prio'
2) This one is there already for a much longer time:
CC kernel/rcupreempt.o
kernel/rcupreempt.c:1001: warning: 'per_cpu__rcu_dyntick_snapshot'
defined but not used
Both warnings are fixed by the attached patch, but warning 2 needs some review.
This var is defined twice in this file, 1 in the NO_HZ ifdef, and 1
which seems to be not used.
Kind Regards,
Remy
2007/12/13, Steven Rostedt <[email protected]>:
> We are pleased to announce the 2.6.23.9-rt13 tree, which can be
> downloaded from the location:
>
> http://www.kernel.org/pub/linux/kernel/projects/rt/
>
> Changes since 2.6.23.9-rt12
>
> - Backported the new RT Balancing code from sched-devel
> New changes by Steven Rostedt, Gregory Haskins,
> Ingo Molnar, and Dmitry Adamushko
>
> - 2 dimension CPU Prio RT balancing search (Gregory Haskins)
>
> - ARM compile fix (Kevin Hilman)
>
> - Disable HPET legacy replacement for kdump (OGAWA Hirofumi)
>
> - disable HPET on shutdown (OGAWA Hirofumi)
>
> - fix for futex_wait signal stack corruption (Steven Rostedt)
>
> - Handle IRQ_PENDING for simple irq thread (Steven Rostedt)
>
> - latency tracer updates (Daniel Walker)
>
> - Remove warning in local_bh_enable (Kevin Hilman)
>
> - use real time pcp locking for page draining during cpu (Andi Kleen)
>
> - Revert lazy disable irq from simple irq handler (Steven Rostedt)
>
> - AT91 switch to edge from simple irq (Remy Bohmer)
>
>
> to build a 2.6.23.9-rt13 tree, the following patches should be applied:
>
> http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.23.9.tar.bz2
> http://www.kernel.org/pub/linux/kernel/projects/rt/patch-2.6.23.9-rt13.bz2
>
> And like always, my RT version of Matt Mackall's ketchup will get this
> for you nicely:
>
> http://people.redhat.com/srostedt/rt/tools/ketchup-0.9.8-rt2
>
>
> The broken out patches are also available.
>
> -- Steve
>
>
> -
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> the body of a message to [email protected]
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>
Hi Remy,
This would have been better to send this as two separate
patches. They are two different issues.
On Thu, 13 Dec 2007, Remy Bohmer wrote:
> If I compile -rt13 I get some compile warnings on ARM (AT91):
> 1) This one did not exist in rt1:
> In file included from kernel/sched.c:911:
> kernel/sched_rt.c: In function 'dec_rt_tasks':
> kernel/sched_rt.c:88: warning: unused variable 'highest_prio'
This is from Gregory Haskins' patch. He forgot to compile check for
warnings on UP again ;-)
> 2) This one is there already for a much longer time:
> CC kernel/rcupreempt.o
> kernel/rcupreempt.c:1001: warning: 'per_cpu__rcu_dyntick_snapshot'
> defined but not used
This was a merge conflict being solved incorrectly.
>
> Both warnings are fixed by the attached patch, but warning 2 needs some review.
> This var is defined twice in this file, 1 in the NO_HZ ifdef, and 1
> which seems to be not used.
Yeah, I'll look into it since I wrote that usage ;-)
Greg,
Can you merge the first part into your patch and resend it to me.
I'll look at the second one.
Thanks,
-- Steve
>>> On Thu, Dec 13, 2007 at 7:06 PM, in message
<[email protected]>, Steven Rostedt
<[email protected]> wrote:
>
> This is from Gregory Haskins' patch. He forgot to compile check for
> warnings on UP again ;-)
Doh!
>
> Greg,
>
> Can you merge the first part into your patch and resend it to me.
>
Sure thing. Would you like me to update only the sched-devel patch, only the 23-rt13 patch, or both?
-Greg