Commit ce53af94 authored Sep 30, 2006 by Fernando Vazquez Committed by Linus Torvalds Oct 01, 2006

[PATCH] stack overflow safe kdump: crash: use safe_smp_processor_id()



Substitute "smp_processor_id" with the stack overflow-safe
"safe_smp_processor_id" in the reboot path to the second kernel.

[akpm@osdl.org: build fix]
Signed-off-by: Fernando Vazquez <fernando@intellilink.co.jp>
Looks-reasonable-to: Andi Kleen <ak@muc.de>
Acked-by: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Vivek Goyal <vgoyal@in.ibm.com>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

parent 2654c08c

arch/i386/kernel/crash.c

+3 −2

Original line number	Diff line number	Diff line
		@@ -23,6 +23,7 @@
		#include <asm/hw_irq.h>
		#include <asm/apic.h>
		#include <asm/kdebug.h>
		#include <asm/smp.h>

		#include <mach_ipi.h>

		@@ -88,7 +89,7 @@ static void crash_save_self(struct pt_regs *regs)
		{
		int cpu;

		cpu = smp_processor_id();
		cpu = safe_smp_processor_id();
		crash_save_this_cpu(regs, cpu);
		}

		@@ -185,7 +186,7 @@ void machine_crash_shutdown(struct pt_regs *regs)
		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)

Admin message