[PATCH 1/2 SRU Raring/Quantal] x86 thermal: Delete power-limit-notification console messages
Tim Gardner
tim.gardner at canonical.com
Fri Aug 23 12:41:28 UTC 2013
From: Fenghua Yu <fenghua.yu at intel.com>
BugLink: http://bugs.launchpad.net/bugs/1215748
Package power limits are common on some systems under some conditions --
so printing console messages when limits are reached
causes unnecessary customer concern and support calls.
Note that even with these console messages gone,
the events can still be observed via system counters:
$ grep TRM /proc/interrupts
Shows total thermal interrupts, which includes both power
limit notifications and thermal throttling interrupts.
$ grep . /sys/devices/system/cpu/cpu*/thermal_throttle/*
Will show what caused those interrupts, core and package
throttling and power limit notifications.
https://bugzilla.kernel.org/show_bug.cgi?id=36182
Signed-off-by: Fenghua Yu <fenghua.yu at intel.com>
Signed-off-by: Len Brown <len.brown at intel.com>
Signed-off-by: Tony Luck <tony.luck at intel.com>
(cherry picked from commit c81147483e525e4a471d581877d7d634591246e1)
---
arch/x86/kernel/cpu/mcheck/therm_throt.c | 9 ---------
1 file changed, 9 deletions(-)
diff --git a/arch/x86/kernel/cpu/mcheck/therm_throt.c b/arch/x86/kernel/cpu/mcheck/therm_throt.c
index 47a1870..68fa890 100644
--- a/arch/x86/kernel/cpu/mcheck/therm_throt.c
+++ b/arch/x86/kernel/cpu/mcheck/therm_throt.c
@@ -181,11 +181,6 @@ static int therm_throt_process(bool new_event, int event, int level)
this_cpu,
level == CORE_LEVEL ? "Core" : "Package",
state->count);
- else
- printk(KERN_CRIT "CPU%d: %s power limit notification (total events = %lu)\n",
- this_cpu,
- level == CORE_LEVEL ? "Core" : "Package",
- state->count);
return 1;
}
if (old_event) {
@@ -193,10 +188,6 @@ static int therm_throt_process(bool new_event, int event, int level)
printk(KERN_INFO "CPU%d: %s temperature/speed normal\n",
this_cpu,
level == CORE_LEVEL ? "Core" : "Package");
- else
- printk(KERN_INFO "CPU%d: %s power limit normal\n",
- this_cpu,
- level == CORE_LEVEL ? "Core" : "Package");
return 1;
}
--
1.7.9.5
More information about the kernel-team
mailing list