On Thu, 17 Jul 2008, Vegard Nossum wrote: > Hah, I actually managed to get netconsole working. This is the log > that fails (v2.6.26): > > http://folk.uio.no/vegardno/linux/numa-netconsole.txt > > I think this looks really interesting: > > [ 0.093562] ExtINT not setup in hardware but reported by MP table > [ 0.093854] ENABLING IO-APIC IRQs > [ 0.094244] ..TIMER: vector=0x31 apic1=-1 pin1=2 apic2=-1 pin2=0 > [ 0.094985] ..MP-BIOS bug: 8254 timer not connected to IO-APIC > [ 0.094985] ...trying to set up timer (IRQ0) through the 8259A ... > [ 0.094985] ..... (found pin 0) ...<7>APIC error on CPU0: 00(80) > [ 0.094985] failed. > [ 0.094985] ...trying to set up timer as Virtual Wire IRQ...<7>APIC > error on CPU0: 80(80) > [ 0.105761] works. > > This error would be: > 7: Illegal register address > > Looks like APIC was misconfigured, which might explain IRQ routing weirdness? Here pin1 and pin2 have been correctly initialised, but apic1 and apic2 are both set to -1. This is an "impossible scenario." Because of that I/O APIC code actually pokes at random registers of the local APIC which immediately precedes I/O APIC #0 in the fixmap. Results may be arbitrary. > Will try to provide the booting one later. Now zZz... Your system uses an MP table and there were quite a lot of changes in its support code recently. A bug must have crept in. Please try the appended patch and the "apic=debug" option for both cases and the resulting logs may shed some light. Maciej patch-next-2.6.26-rc9-20080711-apic-dprintk-0 diff -up --recursive --new-file linux-next-2.6.26-rc9-20080711.macro/include/asm-x86/apic.h linux-next-2.6.26-rc9-20080711/include/asm-x86/apic.h --- linux-next-2.6.26-rc9-20080711.macro/include/asm-x86/apic.h 2008-07-16 14:50:07.000000000 +0000 +++ linux-next-2.6.26-rc9-20080711/include/asm-x86/apic.h 2008-07-18 00:33:19.000000000 +0000 @@ -10,7 +10,7 @@ #define ARCH_APICTIMER_STOPS_ON_C3 1 -#define Dprintk(x...) +#define Dprintk printk /* * Debugging macros -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
