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Commit ce53af94 authored by Fernando Vazquez's avatar Fernando Vazquez Committed by Linus Torvalds
Browse files

[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: default avatarFernando Vazquez <fernando@intellilink.co.jp>
Looks-reasonable-to: Andi Kleen <ak@muc.de>
Acked-by: default avatar"Eric W. Biederman" <ebiederm@xmission.com>
Cc: Vivek Goyal <vgoyal@in.ibm.com>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus 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)