From 94ab5990760a54bb1f0fca99e0d374260cae3b8b Mon Sep 17 00:00:00 2001
From: Dave Kleikamp <dave.kleikamp@oracle.com>
Date: Tue, 6 Jan 2015 18:31:39 -0600
Subject: [PATCH] sparc64: fatal trap should stop all cpus

"echo c > /proc/sysrq-trigger" does not result in a system crash. There
are two problems. One is that the trap handler ignores the global
variable, panic_on_oops. The other is that smp_send_stop() is a no-op
which leaves the other cpus running normally when one cpu panics.

Signed-off-by: Dave Kleikamp <dave.kleikamp@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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