On Fri, 2008-05-02 at 20:02 +0200, Remy Bohmer wrote: > Hello Steven, > > I was wondering: Is there a preempt-RT-patch planned for 2.6.25? > I haven't seen one either for any of the 2.6.25-rc kernels at the > usual place (http://www.kernel.org/pub/linux/kernel/projects/rt/), > first time in history... > Am I missing something? Daniel has done a port, but I think it dropped some archs so its not complete. ftp://source.mvista.com/pub/dwalker/rt/patch-2.6.25-rc9-dw1-broken-out.tar.bz2 and updates, possibly: ftp://source.mvista.com/pub/dwalker/rt/ His bi-sectability changes are pretty key, and I would like to see those reviewed and incorporated, even if they apply only to x86. The RT patch queue generally is a mess today. Lots of stuff needs to be folded down into the core patches. The ins and outs of the softirq code need major clean-up. There are big issues around apic / hardirq threads that we need to tackle at multiple levels. (we are seeing the semis acknowledge the IRQ thread model, where IRQs may stay masked longer than usual) per-device irq threads, as Jon Masters has mentioned in his blog, may be one work-around to get past the legacy stuff in x86. and with the x86 merge, all this should become easier, so that hopefully we can extricate the IRQ threads changes in a bisectable way, so we can address the technical issues that stand in the way of upstream, apart from PREEMPT_RT. Sven -- 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
