From 21173d0b4d2a0b9e9e5f3155cf2cfc5781a6f4b1 Mon Sep 17 00:00:00 2001 From: Prarit Bhargava Date: Tue, 18 Apr 2017 08:25:05 -0400 Subject: [PATCH] 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 Cc: Andrew Morton Cc: Daniel Bristot de Oliveira Cc: Hidehiro Kawai Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Steven Rostedt (VMware) Cc: Thomas Gleixner Cc: Wanpeng Li Link: http://lkml.kernel.org/r/1492518305-3808-1-git-send-email-prarit@redhat.com [ Tweaked the warning message. ] Signed-off-by: Ingo Molnar --- arch/x86/kernel/smp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) 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); -- 2.20.1