Re: Realtime Preemption, 2.6.12, Beginners Guide?

[Karsten Wiese]

Am Samstag, 16. Juli 2005 19:15 schrieb Ingo Molnar:
> 
> * Karsten Wiese <annabellesgarden@xxxxxxxx> wrote:
> 
> > Have I corrected the other path of ioapic early initialization, which 
> > had lacked virtual-address setup before ioapic_data[ioapic] was to be 
> > filled in -51-28? Please test attached patch on top of -51-29 or 
> > later. Also on Systems that liked -51-28.
> 
> thanks - i've applied it to my tree and have released the -51-31 patch.  
> It looks good on my testboxes.
> 
Found another error:
the ioapic cache isn't fully initialized in -51-31's ioapic_cache_init().
Please apply attached patch on top of -51-31.

    Karsten
--- linux-2.6.12-RT-51-31/arch/i386/kernel/io_apic.c	2005-07-17 12:40:35.000000000 +0200
+++ linux-2.6.12-RT/arch/i386/kernel/io_apic.c	2005-07-17 13:33:06.000000000 +0200
@@ -158,7 +158,7 @@
 static void __init ioapic_cache_init(struct ioapic_data_struct *ioapic)
 {
 	int reg;
-	for (reg = 0; reg < (ioapic->nr_registers + 10); reg++)
+	for (reg = 0; reg < (0x10 + 2 * ioapic->nr_registers); reg++)
 		ioapic->cached_val[reg] = __raw_io_apic_read(ioapic, reg);
 }
 # endif