Re: 2.6.16-rc5: known regressions [TP 600X S3, vanilla DSDT]

[Sanjoy Mahajan <sanjoy@mrao.cam.ac.uk>]

Bad news.  It hangs when I do the usual stress test:

echo 1 > THM0/polling_frequency
sleep.sh
sleep.sh

The second sleep.sh hangs going to sleep.  It is in an endless loop
printing the following line, once per second (from the
polling_frequency):

  Execute Method: [\_TZ_.THM0._TMP] (Node c157bf88)

> Please also make sure you have vanilla DSDT

$ grep DSDT /boot/config-2.6.16-rc5.fake-thermal_active+passive
# CONFIG_ACPI_CUSTOM_DSDT is not set

> vanilla Kernel, and just hacked acpi_thermal_active/passive.

Only diff between pristine 2.6.16-rc5 tree and mine is:

diff -rup /tmp/linux-2.6.16-rc5/drivers/acpi/thermal.c /usr/src/linux-2.6.16-rc5/drivers/acpi/thermal.c
--- /tmp/linux-2.6.16-rc5/drivers/acpi/thermal.c	2006-02-27 00:09:35.000000000 -0500
+++ /usr/src/linux-2.6.16-rc5/drivers/acpi/thermal.c	2006-03-16 09:45:30.000000000 -0500
@@ -526,6 +526,8 @@ static void acpi_thermal_passive(struct 
 
 	ACPI_FUNCTION_TRACE("acpi_thermal_passive");
 
+	return;
+
 	if (!tz || !tz->trips.passive.flags.valid)
 		return;
 
@@ -615,6 +617,8 @@ static void acpi_thermal_active(struct a
 
 	ACPI_FUNCTION_TRACE("acpi_thermal_active");
 
+	return;
+
 	if (!tz)
 		return;
 

-Sanjoy

`Never underestimate the evil of which men of power are capable.'
         --Bertrand Russell, _War Crimes in Vietnam_, chapter 1.