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SubjectRe: 2.6.13-rc6-rt9
Ingo Molnar wrote:
> i have released the 2.6.13-rc6-rt9 tree, which can be downloaded from
> the usual place:
>
> http://redhat.com/~mingo/realtime-preempt/
>

I'm looking into getting HRT and RT booting on a SUMMIT NUMA machine
(cyclone timer), but after s/error/warning/ in arch/i386/timers/timer.c
for the HRT cyclone ifdef, I still get the following link error:


LD .tmp_vmlinux1
net/built-in.o(.init.text+0xdae): In function `sock_ioctl':
net/socket.c:868: undefined reference to `__you_cannot_kmalloc_that_much'
make: *** [.tmp_vmlinux1] Error 1


I was expecting to be able to build the kernel, and have it crash on
boot (due to unsynched TSCs I'm guessing) and then start debugging/devel
from there. But the the rt9 patch won't build (HRT standalone for
2.6.10 does build). Anyone else seeing this?

> it's a fixes-only release. Changes since 2.6.13-rc6-rt3:
>
> - USB irq flags use cleanups (Alan Stern)
>
> - RCU tasklist-lock fixes (Paul McKenney, Thomas Gleixner)
>
> - HR-timers waitqueue splitup, better HRT latencies (Thomas Gleixner)
>
> - latency tracer fixes, irq flags tracing cleanups (Steven Rostedt, me)
>
> - NFSd BKL unlock fix (Steven Rostedt)
>
> - stackfootprint-max-printer fix (Steven Rostedt)
>
> - stop_machine fix (Steven Rostedt)
>
> - lpptest fix (me)
>
> - turned off IOAPIC_POSTFLUSH when CONFIG_X86_IOAPIC_FAST. Now with
> Karsten's VIA fixes my testbox does not show PCI-POST weirnesses
> anymore. In case of IRQ problems please turn off IOAPIC_FAST. (me)
>
> to build a 2.6.13-rc6-rt9 tree, the following patches should be applied:
>
> http://kernel.org/pub/linux/kernel/v2.6/linux-2.6.12.tar.bz2
> http://kernel.org/pub/linux/kernel/v2.6/testing/patch-2.6.13-rc6.bz2
> http://redhat.com/~mingo/realtime-preempt/patch-2.6.13-rc6-rt9
>
> Ingo
> -
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--
Darren Hart
IBM Linux Technology Center
Linux Kernel Team
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