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| author | Fernando Vazquez <fernando@intellilink.co.jp> | 2006-09-30 23:29:09 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-10-01 00:39:31 -0700 |
| commit | ce53af9496c625a8ae33526713be34a23756db19 (patch) | |
| tree | c1d9b2ab0d4b2b89453e2f2a032fa0505492e85e /arch/i386 | |
| parent | 2654c08caa12a06237b28f85446ae2d223c30144 (diff) | |
| download | linux-ce53af9496c625a8ae33526713be34a23756db19.tar.gz linux-ce53af9496c625a8ae33526713be34a23756db19.tar.bz2 linux-ce53af9496c625a8ae33526713be34a23756db19.zip | |
[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>
Diffstat (limited to 'arch/i386')
| -rw-r--r-- | arch/i386/kernel/crash.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/i386/kernel/crash.c b/arch/i386/kernel/crash.c index 67d297dc1003..2dfc049dafa3 100644 --- a/arch/i386/kernel/crash.c +++ b/arch/i386/kernel/crash.c @@ -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) |