Author: attilio
Date: Mon Sep 19 10:58:30 2011
New Revision: 225662
URL: http://svn.freebsd.org/changeset/base/225662
Log:
#PROCHOT assertion is sticky after reading the MSR (accordingly with
Intel manuals) it must be cleared by writing a 0.
Fix that.
Sponsored by: Sandvine Incorporated
Reported by: rstone
Reviewed by: delphij, emaste, rstone
Approved by: re (kib)
MFC after: 1 week
Modified:
head/sys/dev/coretemp/coretemp.c
Modified: head/sys/dev/coretemp/coretemp.c
==============================================================================
--- head/sys/dev/coretemp/coretemp.c Mon Sep 19 10:28:59 2011
(r225661)
+++ head/sys/dev/coretemp/coretemp.c Mon Sep 19 10:58:30 2011
(r225662)
@@ -384,6 +384,7 @@ coretemp_get_val_sysctl(SYSCTL_HANDLER_A
}
if (msr & THERM_STATUS_LOG) {
+ coretemp_clear_thermal_msr(device_get_unit(dev));
sc->sc_throttle_log = 1;
/*
@@ -424,8 +425,10 @@ coretemp_throttle_log_sysctl(SYSCTL_HAND
msr = coretemp_get_thermal_msr(device_get_unit(dev));
sc = device_get_softc(dev);
- if (msr & THERM_STATUS_LOG)
+ if (msr & THERM_STATUS_LOG) {
+ coretemp_clear_thermal_msr(device_get_unit(dev));
sc->sc_throttle_log = 1;
+ }
val = sc->sc_throttle_log;
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