Commit-ID:  21173d0b4d2a0b9e9e5f3155cf2cfc5781a6f4b1
Gitweb:     http://git.kernel.org/tip/21173d0b4d2a0b9e9e5f3155cf2cfc5781a6f4b1
Author:     Prarit Bhargava <[email protected]>
AuthorDate: Tue, 18 Apr 2017 08:25:05 -0400
Committer:  Ingo Molnar <[email protected]>
CommitDate: Thu, 20 Apr 2017 10:14:30 +0200

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 <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: Daniel Bristot de Oliveira <[email protected]>
Cc: Hidehiro Kawai <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Steven Rostedt (VMware) <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: Wanpeng Li <[email protected]>
Link: 
http://lkml.kernel.org/r/[email protected]
[ Tweaked the warning message. ]
Signed-off-by: Ingo Molnar <[email protected]>
---
 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 d3c66a1..3cab841 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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