Re: 2.6.13-rc7-rt1

[Daniel Walker <dwalker@mvista.com>]

On Thu, 2005-08-25 at 19:45 +0200, Ingo Molnar wrote:
> * Daniel Walker <dwalker@mvista.com> wrote:
> 
> > Does anyone have x86_64 working in PREEMPT_RT ?
> 
> builds fine, but doesnt seem to boot at the moment. Havent investigated 
> yet.

I tested an em64t , and it hung during boot .. But this patched fixed
it, does it do anything for you?

Daniel

Index: linux-2.6.12/arch/x86_64/kernel/smpboot.c
===================================================================
--- linux-2.6.12.orig/arch/x86_64/kernel/smpboot.c	2005-08-25 19:39:04.000000000 +0000
+++ linux-2.6.12/arch/x86_64/kernel/smpboot.c	2005-08-25 20:42:38.000000000 +0000
@@ -750,7 +750,6 @@ static int __cpuinit do_boot_cpu(int cpu
 
 do_rest:
 
-	cpu_pda[cpu].pcurrent = c_idle.idle;
 
 	start_rip = setup_trampoline();
 
@@ -789,6 +788,8 @@ do_rest:
 		apic_read(APIC_ESR);
 	}
 
+	cpu_pda[cpu].pcurrent = c_idle.idle;
+
 	/*
 	 * Status is now clean
 	 */