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ARM: smp: implement arch_trigger_all_cpus_backtrace using IPI
authorDima Zavin <dima@android.com>
Tue, 18 Oct 2011 23:59:54 +0000 (16:59 -0700)
committerDima Zavin <dima@android.com>
Thu, 20 Oct 2011 20:45:55 +0000 (13:45 -0700)
commit8b7fd32923143097928a21b33b6238084072f8f9
tree2ffae2068aae10adce869fcdba8f25913c051073tree | snapshot
parentfe04aa151f7254a38c35d5f1d89fa0d15c3dfce4commit | diff
ARM: smp: implement arch_trigger_all_cpus_backtrace using IPI

Based on a rough patch by frank.rowand@am.sony.com

Since ARM doesn't have an NMI (fiq's are not always available),
send an IPI to all other CPUs (current cpu prints the stack directly)
to capture a backtrace.

Change-Id: I8b163c8cec05d521b433ae133795865e8a33d4e2
Signed-off-by: Dima Zavin <dima@android.com>
arch/arm/include/asm/hardirq.h diff | blob | history
arch/arm/include/asm/irq.h diff | blob | history
arch/arm/include/asm/smp.h diff | blob | history
arch/arm/kernel/process.c diff | blob | history
arch/arm/kernel/smp.c diff | blob | history
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