Finally! We are pleased to announce 2.6.24-rc2-rt1. This is probably one of the toughest ports the -rt patch had to face. It was definitely the toughest one I had to perform. With a 50 Meg difference between 2.6.23 and 2.6.24-rc2 it caused a lot of problems with conflicts. The 2.6.23.1-rt11 patch consisted of 386 patches. Of them 25 of them were incorporated into mainline (mostly hrtimers for x86_64 and other archs). With fixes and such, the 2.6.24-rc2-rt1 has 370 patches. 361 of them came from 2.6.23.1-rt11 and of those 129 had conflicts. Some conflicts were trivial, but a lot of them were not. In order to allow others to audit my changes I have archived the .rej reject files as well as the quilt .pc files and original patch. http://rostedt.homelinux.com/rt/pre/2.6.24-rc2-rt1-pre1-rejs/ This holds a list of tar balls that contain the necessary files to get to the state before I preformed the "quilt refresh". For example: to fix the patch preempt-realtime-mips.patch rostedt@gandalf:~$ mkdir bah rostedt@gandalf:~$ cd bah rostedt@gandalf:~/bah$ ketchup -r -G 2.6.24-rc2 None -> 2.6.24-rc2 Unpacking linux-2.6.23.tar.bz2 Applying patch-2.6.24-rc2.bz2 Current directory renamed to /home/rostedt/linux-2.6.24-rc2 rostedt@gandalf:~/bah$ cd . rostedt@gandalf:~/linux-2.6.24-rc2$ rostedt@gandalf:~/linux-2.6.24-rc2$ wget http://www.kernel.org/pub/linux/kernel/projects/rt/patch-2.6.24-rc2-rt1-broken-out.tar.bz2 rostedt@gandalf:~/linux-2.6.24-rc2$ tar -xf patch-2.6.24-rc2-rt1-broken-out.tar.bz2 rostedt@gandalf:~/linux-2.6.24-rc2$ quilt push preempt-realtime-mips.patch [...] rostedt@gandalf:~/linux-2.6.24-rc2$ wget http://rostedt.homelinux.com/rt/pre/2.6.24-rc2-rt1-pre1-rejs/preempt-realtime-mips.patch.tar.bz2 [...] rostedt@gandalf:~/linux-2.6.24-rc2$ tar -xf preempt-realtime-mips.patch.tar.bz2 rostedt@gandalf:~/linux-2.6.24-rc2$ find . -name '*.rej' ./arch/mips/kernel/i8259.c.rej ./arch/mips/kernel/smp.c.rej ./arch/mips/kernel/process.c.rej ./arch/mips/kernel/time.c.rej ./arch/mips/kernel/traps.c.rej ./arch/mips/sibyte/sb1250/irq.c.rej ./arch/mips/sibyte/sb1250/smp.c.rej ./arch/mips/sibyte/swarm/setup.c.rej ./include/asm-mips/hw_irq.h.rej ./include/asm-mips/i8259.h.rej ./include/asm-mips/linkage.h.rej ./include/asm-mips/semaphore.h.rej ./include/asm-mips/time.h.rej And now I'm in the position before I did the "quilt refresh" against the preempt-realtime-mips.patch. Others can do this too, and see where I might have messed up the conflicts. Note, doing a "quilt pop -f" now will remove the patch as I resolved it, and doing a "quilt push -f" will put you to the position before I did the patch. Note, I may have messed up by running a "quilt refresh" before running the reject archive script. If that's the case (the saved patch will be the resolved patch, not the original), simply take the patch from the patch-2.6.23.1-rt11-broken-out.tar.bz2 and use that as the original. I've tested this on x86_64 both SMP and UP, as well as SMP on i386. I'm pretty sure that the other archs may be broken (arm, mips and powerpc). Because this was such a big change, there is probably a bit of regression bugs that might have crept in. So please test and report your findings. Special thanks goes to Paul E. Mckenney (for pointing me to the wrong bug, that happened to sit right next to the correct one ;-), as well as Peter Zijlstra and Daniel Walker for helping me debug the initial ports. Changes since 2.6.23.1-rt11 - Port to 2.6.24-rc2 - latency tracer bootmem allocate (Yanmin Zhang) - removed Gregory Haskins patch 8 (will probably be back in -rt2) This was due to some initial porting problems. But the fixes came too late in the testing period. (he decided cleaning his garage was more important than working on this kernel.;-) to build a 2.6.24-rc2-rt1 tree, the following patches should be applied: http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.23.tar.bz2 http://www.kernel.org/pub/linux/kernel/v2.6/testing/patch-2.6.24-rc2.bz2 http://www.kernel.org/pub/linux/kernel/projects/rt/patch-2.6.24-rc2-rt1.gz 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-rt1 The broken out patches are also available. Thanks! -- Steve - 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
