Date: Fri, 25 Oct 2013 04:00:02 GMT From: dfilter@FreeBSD.ORG (dfilter service) To: freebsd-ppc@FreeBSD.org Subject: Re: powerpc/180593: commit references a PR Message-ID: <201310250400.r9P402YR076517@freefall.freebsd.org>
next in thread | raw e-mail | index | archive | help
The following reply was made to PR powerpc/180593; it has been noted by GNATS. From: dfilter@FreeBSD.ORG (dfilter service) To: bug-followup@FreeBSD.org Cc: Subject: Re: powerpc/180593: commit references a PR Date: Fri, 25 Oct 2013 03:55:59 +0000 (UTC) Author: nwhitehorn Date: Fri Oct 25 03:55:52 2013 New Revision: 257093 URL: http://svnweb.freebsd.org/changeset/base/257093 Log: Be a little more suspicious of thermal sensors, which can have single 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 Modified: head/sys/powerpc/powermac/powermac_thermal.c Modified: head/sys/powerpc/powermac/powermac_thermal.c ============================================================================== --- head/sys/powerpc/powermac/powermac_thermal.c Fri Oct 25 03:18:56 2013 (r257092) +++ head/sys/powerpc/powermac/powermac_thermal.c Fri Oct 25 03:55:52 2013 (r257093) @@ -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 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); } _______________________________________________ svn-src-all@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscribe@freebsd.org"
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?201310250400.r9P402YR076517>