linux-kernel - [tip:x86/debug] x86/debug: Remove ancient debugging noise from boot log when starting cpus

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Date:	Wed, 22 Feb 2012 12:34:28 -0800
From:	"tip-bot for Luck, Tony" <tony.luck@...el.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, hpa@...or.com, mingo@...hat.com,
	tony.luck@...el.com, tglx@...utronix.de, bp@...64.org,
	mingo@...e.hu
Subject: [tip:x86/debug] x86/debug:
  Remove ancient debugging noise from boot log when starting cpus

Commit-ID:  55bc423c1274ba474b74155167d33a56ddf77558
Gitweb:     http://git.kernel.org/tip/55bc423c1274ba474b74155167d33a56ddf77558
Author:     Luck, Tony <tony.luck@...el.com>
AuthorDate: Wed, 22 Feb 2012 10:06:44 -0800
Committer:  Ingo Molnar <mingo@...e.hu>
CommitDate: Wed, 22 Feb 2012 21:26:18 +0100

x86/debug: Remove ancient debugging noise from boot log when starting cpus

Printing the "start_ip" for every secondary cpu is very noisy on
a large system - and doesn't add any value. Drop this message.

Console log before:

 Booting Node   0, Processors  #1
 smpboot cpu 1: start_ip = 96000
  #2
 smpboot cpu 2: start_ip = 96000
  #3
 smpboot cpu 3: start_ip = 96000
  #4
 smpboot cpu 4: start_ip = 96000
        ...
  #31
 smpboot cpu 31: start_ip = 96000
 Brought up 32 CPUs

Console log after:

 Booting Node   0, Processors  #1 #2 #3 #4 #5 #6 #7 Ok.
 Booting Node   1, Processors  #8 #9 #10 #11 #12 #13 #14 #15 Ok.
 Booting Node   0, Processors  #16 #17 #18 #19 #20 #21 #22 #23 Ok.
 Booting Node   1, Processors  #24 #25 #26 #27 #28 #29 #30
 #31 Brought up 32 CPUs

Signed-off-by: Tony Luck <tony.luck@...el.com>
Acked-by: Borislav Petkov <bp@...64.org>
Cc: castet.matthieu@...e.fr
Cc: sfr@...b.auug.org.au
Cc: hpa@...ux.intel.com
Cc: rjw@...k.pl
Link: http://lkml.kernel.org/r/4f452eb42507460426@agluck-desktop.sc.intel.com
Signed-off-by: Ingo Molnar <mingo@...e.hu>
---
 arch/x86/kernel/smpboot.c |    2 --
 1 files changed, 0 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index 257049d..f34f8b2 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -740,8 +740,6 @@ do_rest:
 	 * the targeted processor.
 	 */
 
-	printk(KERN_DEBUG "smpboot cpu %d: start_ip = %lx\n", cpu, start_ip);
-
 	atomic_set(&init_deasserted, 0);
 
 	if (get_uv_system_type() != UV_NON_UNIQUE_APIC) {
--
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