* [PATCH 2/3] stack overflow safe kdump (2.6.18-rc1-i386) - crash_use_safe_smp_processor_id
@ 2006-07-10 7:51 Fernando Luis Vázquez Cao
0 siblings, 0 replies; only message in thread
From: Fernando Luis Vázquez Cao @ 2006-07-10 7:51 UTC (permalink / raw)
To: vgoyal
Cc: Eric W. Biederman, akpm, ak, James.Bottomley, linux-kernel, fastboot
Substitute "smp_processor_id" with the stack overflow-safe
"safe_smp_processor_id" in the reboot path to the second kernel.
Signed-off-by: Fernando Vazquez <fernando@intellilink.co.jp>
---
diff -urNp linux-2.6.18-rc1/arch/i386/kernel/crash.c linux-2.6.18-rc1-sof/arch/i386/kernel/crash.c
--- linux-2.6.18-rc1/arch/i386/kernel/crash.c 2006-07-10 10:59:58.000000000 +0900
+++ linux-2.6.18-rc1-sof/arch/i386/kernel/crash.c 2006-07-10 16:06:55.000000000 +0900
@@ -86,7 +86,7 @@ static void crash_save_self(struct pt_re
{
int cpu;
- cpu = smp_processor_id();
+ cpu = safe_smp_processor_id();
crash_save_this_cpu(regs, cpu);
}
@@ -169,7 +169,7 @@ void machine_crash_shutdown(struct pt_re
local_irq_disable();
/* Make a note of crashing cpu. Will be used in NMI callback.*/
- crashing_cpu = smp_processor_id();
+ crashing_cpu = safe_smp_processor_id();
nmi_shootdown_cpus();
lapic_shutdown();
#if defined(CONFIG_X86_IO_APIC)
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