path: root/arch
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authorZwane Mwaikambo <>2005-09-06 15:16:16 -0700
committerLinus Torvalds <>2005-09-07 16:57:15 -0700
commitc078d3266e58a3edd698b9f143f78fc585679031 (patch)
tree01efc52786cb88db71cf0600ef5349740ffbdfc2 /arch
parent54d5d42404e7705cf3804593189e963350d470e5 (diff)
[PATCH] x86_64: print processor number in show_regs
Up to date I've been using the GS value to determine the processor number in dumps from show_regs, however this can be cumbersome to do if you don't have the vmlinux to verify with the address of cpu_pda, how about the following? I considered using hard_smp_processor_id for robustness but we already dereference current so we're already relying on MSR_GS_BASE being sane. Signed-off-by: Zwane Mwaikambo <> Acked-by: Andi Kleen <> Signed-off-by: Andrew Morton <> Signed-off-by: Linus Torvalds <>
Diffstat (limited to 'arch')
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86_64/kernel/process.c b/arch/x86_64/kernel/process.c
index 7577f9d7a75d..8661f82ac70b 100644
--- a/arch/x86_64/kernel/process.c
+++ b/arch/x86_64/kernel/process.c
@@ -310,6 +310,7 @@ void __show_regs(struct pt_regs * regs)
void show_regs(struct pt_regs *regs)
+ printk("CPU %d:", smp_processor_id());