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authorPrarit Bhargava <prarit@redhat.com>2017-04-18 08:25:05 -0400
committerIngo Molnar <mingo@kernel.org>2017-04-20 10:14:30 +0200
commit21173d0b4d2a0b9e9e5f3155cf2cfc5781a6f4b1 (patch)
tree1e4bb7afca69ba09dc80cfef31b5e75e995d30ec
parent73810a069120aa831debb4d967310ab900f628ad (diff)
downloadblackbird-op-linux-21173d0b4d2a0b9e9e5f3155cf2cfc5781a6f4b1.tar.gz
blackbird-op-linux-21173d0b4d2a0b9e9e5f3155cf2cfc5781a6f4b1.zip
sched/x86: Update reschedule warning text
Modify the reschedule warning to output the offline CPU number and use a better debug message. Signed-off-by: Prarit Bhargava <prarit@redhat.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Daniel Bristot de Oliveira <bristot@redhat.com> Cc: Hidehiro Kawai <hidehiro.kawai.ez@hitachi.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Steven Rostedt (VMware) <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Wanpeng Li <wanpeng.li@hotmail.com> Link: http://lkml.kernel.org/r/1492518305-3808-1-git-send-email-prarit@redhat.com [ Tweaked the warning message. ] Signed-off-by: Ingo Molnar <mingo@kernel.org>
-rw-r--r--arch/x86/kernel/smp.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kernel/smp.c b/arch/x86/kernel/smp.c
index d3c66a15bbde..3cab8415389a 100644
--- a/arch/x86/kernel/smp.c
+++ b/arch/x86/kernel/smp.c
@@ -124,7 +124,7 @@ static bool smp_no_nmi_ipi = false;
static void native_smp_send_reschedule(int cpu)
{
if (unlikely(cpu_is_offline(cpu))) {
- WARN_ON(1);
+ WARN(1, "sched: Unexpected reschedule of offline CPU#%d!\n", cpu);
return;
}
apic->send_IPI(cpu, RESCHEDULE_VECTOR);
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