mirror/freebsd
1
0
Fork 0
mirror of https://git.FreeBSD.org/src.git synced 2025-01-31 16:57:10 +00:00
Code Issues Releases Activity

Be a little more suspicious of thermal sensors, which can have single

Browse Source 
crazy readings occasionally. One wild reading should not be enough to
trigger a shutdown, so instead wait for several concerning readings in
a row.

PR:		powerpc/180593
Submitted by:	Julio Merino
MFC after:	1 week
This commit is contained in:
Nathan Whitehorn 2013-10-25 03:55:52 +00:00
parent 8f1db961f9
commit a3550e73e4
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=257093
1 changed files with 24 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

31
sys/powerpc/powermac/powermac_thermal.c
View File

@ -68,6 +68,8 @@ struct pmac_fan_le {
struct pmac_sens_le {
struct pmac_therm *sensor;
int last_val;
#define MAX_CRITICAL_COUNT 6
int critical_count;
SLIST_ENTRY(pmac_sens_le) entries;
};
static SLIST_HEAD(pmac_fans, pmac_fan_le) fans = SLIST_HEAD_INITIALIZER(fans);
@ -106,14 +108,27 @@ pmac_therm_manage_fans(void)
sensor->last_val = temp;
if (sensor->last_val > sensor->sensor->max_temp) {
sensor->critical_count++;
printf("WARNING: Current temperature (%s: %d.%d C) "
"exceeds critical temperature (%d.%d C)! "
"Shutting down!\n", sensor->sensor->name,
(sensor->last_val - ZERO_C_TO_K) / 10,
(sensor->last_val - ZERO_C_TO_K) % 10,
(sensor->sensor->max_temp - ZERO_C_TO_K) / 10,
(sensor->sensor->max_temp - ZERO_C_TO_K) % 10);
shutdown_nice(RB_POWEROFF);
"exceeds critical temperature (%d.%d C); "
"count=%d\n",
sensor->sensor->name,
(sensor->last_val - ZERO_C_TO_K) / 10,
(sensor->last_val - ZERO_C_TO_K) % 10,
(sensor->sensor->max_temp - ZERO_C_TO_K) / 10,
(sensor->sensor->max_temp - ZERO_C_TO_K) % 10,
sensor->critical_count);
if (sensor->critical_count >= MAX_CRITICAL_COUNT) {
printf("WARNING: %s temperature exceeded "
"critical temperature %d times in a row; "
"shutting down!\n",
sensor->sensor->name,
sensor->critical_count);
shutdown_nice(RB_POWEROFF);
}
} else {
if (sensor->critical_count > 0)
sensor->critical_count--;
}
}
@ -177,6 +192,8 @@ pmac_thermal_sensor_register(struct pmac_therm *sensor)
list_entry = malloc(sizeof(struct pmac_sens_le), M_PMACTHERM,
M_ZERO | M_WAITOK);
list_entry->sensor = sensor;
list_entry->last_val = 0;
list_entry->critical_count = 0;
SLIST_INSERT_HEAD(&sensors, list_entry, entries);
}