Quite embarassing. Forgot to attach the patch :(
Signed-off-by: Jay Lan <[EMAIL PROTECTED]>
Jay Lan wrote:
> ** this is a repost to fastboot. My original post was sent with
> an email addr with extra subdomain, thus was not posted. If
> you respond to this posting, please add [email protected],
> [EMAIL PROTECTED], and [EMAIL PROTECTED] to Cc. Thanks!
>
> This patch is to fix a problem of interrupts being sent to cpus
> that can not respond.
>
> This patch would return slave cpus to SAL slave loop, at time of
> crash, except cpu0. The cpu0 is a special case as there is no way
> to return it to SAL, so cpu0 is better handled in firmware.
>
> Signed-off-by: Jay Lan <[EMAIL PROTECTED]>
> _______________________________________________
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> [email protected]
> https://lists.osdl.org/mailman/listinfo/fastboot
Index: linux/arch/ia64/kernel/crash.c
===================================================================
--- linux.orig/arch/ia64/kernel/crash.c 2006-10-17 17:09:45.662734380 -0700
+++ linux/arch/ia64/kernel/crash.c 2006-10-30 12:27:12.080526026 -0800
@@ -146,14 +146,21 @@ machine_kdump_on_init(void)
void
kdump_cpu_freeze(struct unw_frame_info *info, void *arg)
{
+ int cpuid = smp_processor_id();
+
local_irq_disable();
crash_save_this_cpu();
current->thread.ksp = (__u64)info->sw - 16;
atomic_inc(&kdump_cpu_freezed);
- kdump_status[smp_processor_id()] = 1;
+ kdump_status[cpuid] = 1;
mb();
- for (;;)
- cpu_relax();
+ /* return cpus (except cpu0) to SAL slave loop */
+ if (cpuid == 0) {
+ for (;;)
+ cpu_relax();
+ } else {
+ ia64_jump_to_sal(&sal_boot_rendez_state[cpuid]);
+ }
}
static int
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