On Wed, Jul 30, 2008 at 12:21:10AM +0200, Thomas Gleixner wrote: > We are pleased to announce the 2.6.26-rt1 tree, which can be > downloaded from the location: > > http://rt.et.redhat.com/download/ > > Information on the RT patch can be found at: > > http://rt.wiki.kernel.org/index.php/Main_Page > > The merge was mostly done by Steven Rostedt, I just fixed it up, added > the fixes from .24-rt17 and tested it on x86 32/64bit. > > This is the first cut of .26-rt, so don't expect it to be perfect. > > I run out of time, so I dropped Peter's cpu-hotplug patches > completely. The hotplug and rcupreempt code has changed radically, so > we need to redo that lot. Peter, Paul can you please look into that ? > > I tried to address the non-x86 issues as far as I could, but I had no > chance to compile test them. So please check the wreckage. > > to build a 2.6.26-rt1 tree, the following patches should be applied: > > http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.26.tar.bz2 > http://rt.et.redhat.com/download/patch-2.6.26-rt1.bz2 > > And like always, Steven's RT version of Matt Mackall's ketchup will get this > for you nicely: > > http://people.redhat.com/srostedt/rt/tools/ketchup-0.9.8-rt3 > > As usual the broken out patches are also available. > > I'm going on vacation tomorrow so feel free to blame/curse/flame me, > but please work with Steven to get it into shape. Hmmm... Still quite a few RCU-related patches in there. Here is my kneejerk reaction on what to do about them: o call_rcu_bh-rename-of-call_rcu.patch should go to mainline. o rcu-trace-fix-free.patch should go to mainline. o rcu-preempt-fix-bad-dyntick-accounting.patch can be dropped from -rt without going to mainline. o Some of rcu-hrt-fixups.patch needs to go over, some need to come back: o __rcu_process_callbacks() change of local_irq_disable() to local_irq_save() should go to mainline. o -rt needs to take the change that dropped the parameter for softirq functions. o -rt needs to take the change of rcu_process_callbacks() to static (both declaration and definition). o -rt needs to take the deletion of rcu_advance_callbacks() o rcu-new-7.patch needs to move over (torture preemptable RCU) Ditto for rcu-torture-preempt-update.patch. But not blazingly urgent. o RCU boosting needs re-implementation, in the works. o preempt_realtime_rcu.patch is mostly about raw_spinlock_t. Is mainline's raw_spinlock_t compatible with that of -rt? If so, this should go to mainline. o rcu-preempt-hotplug-hackaround.patch should be able to be dropped at some point (maybe even as of 2.6.26?). Thoughts? Thanx, Paul -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
