On Tue, 25 Jun 2002 17:24:00 -0700,
Matthew Dobson <colpatch@xxxxxxxxxx> wrote:
>This patch gets stack backtracing to work
That patch is fine.
>and also allows CPU switching on our
>NUMA-Q hardware.
>diff -Nur linux-2.5.9-van+kdb/arch/i386/kernel/smp.c
>linux-2.5.9-kdb/arch/i386/kernel/smp.c
>--- linux-2.5.9-van+kdb/arch/i386/kernel/smp.c Mon Jun 24 11:33:51 2002
>+++ linux-2.5.9-kdb/arch/i386/kernel/smp.c Tue Jun 11 13:59:47 2002
>@@ -236,7 +237,15 @@
> * program the ICR
> */
> cfg = __prepare_ICR(0, vector);
>-
>+
>+#ifdef CONFIG_KDB
>+ if (vector == KDB_VECTOR) {
>+ /*
>+ * Setup KDB IPI to be delivered as an NMI
>+ */
>+ cfg = (cfg&~APIC_VECTOR_MASK)|APIC_DM_NMI;
>+ }
>+#endif /* CONFIG_KDB */
> /*
> * Send the IPI. The write to APIC_ICR fires this off.
> */
There are three calls to __prepare_ICR() in smp.c. kdb already patches
__send_IPI_shortcut(), your patch updates send_IPI_mask_sequence. What
about send_IPI_mask_bitmask, does that need to be tweaked as well?
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