v2.6.20-rc1-rt3, yum/rpm

From: Ingo Molnar
Date: Thu Dec 21 2006 - 19:18:50 EST


i have released the 2.6.20-rc1-rt3 tree, which can be downloaded from
the usual place:

http://redhat.com/~mingo/realtime-preempt/

more info about the -rt patchset can be found on the RT wiki:

http://rt.wiki.kernel.org

this is a rebase of -rt to v2.6.20, plus lots of fixes all around the
place. Given that v2.6.20 is a stabilization release, i rebased the -rt
tree earlier than usual, and it has worked out so far and is converging
pretty fast. Changes since 2.6.19-rt6:

- scheduling latency fixes on SMP systems

- various high-res timers and dynticks fixes

- all hardirq and softirq threads now default to SCHED_FIFO:50, use
rtirq, set_kthread_prio or raw chrt to tune them. Note: the naming of
IRQ threads has changed to "IRQ-123", from the "IRQ 123" naming, to
make it easier to script them.

- NUMA/slab-rt fixes

- tracer fixes

- merge the latest ARM patches

- lockless pagecache patchset from Nick Pigging, ported to -rt by Peter
Zijlstra

- files_lock scalability patchset from Peter Zijlstra

- more /proc/lockdep dependency info from Jason Baron

- latest lockdep fixes

- latest e1000 fixes

- /proc/timer_list for timer info and enhanced /proc/timer_stats
support via CONFIG_TIMER_STATS.

- fixed bzImage boot hang when FUNCTION_TRACING/mcount enabled.

- lots of other fixes i forgot about :)

- merge to v2.6.20-rc1

- merge to latest -git after v2.6.20-rc1

to build a 2.6.20-rc1-rt3 tree, the following patches should be applied:

http://kernel.org/pub/linux/kernel/v2.6/linux-2.6.19.tar.bz2
http://kernel.org/pub/linux/kernel/v2.6/testing/patch-2.6.20-rc1.bz2
http://redhat.com/~mingo/realtime-preempt/patch-2.6.20-rc1-rt3

the -rt YUM repository for Fedora Core 6 and 5, for architectures x86_64
and i686 can be activated via:

cd /etc/yum.repos.d
wget http://people.redhat.com/~mingo/realtime-preempt/rt.repo

yum install kernel-rt.x86_64 # on x86_64
yum install kernel-rt # on i686

yum update kernel-rt # refresh - or enable yum-updatesd

(note: it will take 15-30 minutes from now on for the yum repository to
be updated to -rt6)

as usual, bugreports, fixes and suggestions are welcome,

Ingo
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