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SubjectRE: 2.6.16-rc5: known regressions [TP 600X S3, vanilla DSDT]
DateTue, 21 Mar 2006 17:11:29 +0800
From"Yu, Luming" <>
>With _TMP faked in the kernel and one whole zone ignored, this 
>is what I
>get:
>
>Zone to ignore	|	Result
>---------------------------------------------------------------
>---------
>THM0			OK (10 cycles)
>THM2			"kernel panic! attempted to kill init"

I guess, if you fake DSDT by completely removing THM2
you won't see this.

>THM6			Hangs (4th cycle)
Is it still hang at SMPI?

>THM7			OK (8 cycles)
>
>So THM6 seems healthy, but THM0 and THM7 (and maybe THM2) interact
>badly.  If I unload THM2, THM6, and THM7, then it's okay (previous
>experiments with faking _TMP but with only THM0 loaded).  But unloading
>THM6 is not enough.

Please try to remove THM2 judge if it is JUST the 
problem of THM0 && THM7.

>
>The kernel panic for the don't-load-THM2 kernel is very strange.  I had
>another kernel panic while doing another set of tests, which I also
>couldn't explain.  The only difference between the no-THM0 and the
>no-THM2 kernels is:

Could you just printk device->pnp? it could be null point (due to 
you hack?)

>
>diff -r b7ad6c906aba -r 213308f0ec31 drivers/acpi/thermal.c
>--- a/drivers/acpi/thermal.c	Tue Mar 21 02:23:30 2006 -0500
>+++ b/drivers/acpi/thermal.c	Tue Mar 21 02:36:42 2006 -0500
>@@ -1324,7 +1324,7 @@ static int acpi_thermal_add(struct acpi_
> 
> 	if (!device)
> 		return_VALUE(-EINVAL);
>-	if (strcmp("THM2", device->pnp.bus_id) == 0) {
>+	if (strcmp("THM0", device->pnp.bus_id) == 0) {
> 	    printk(KERN_INFO PREFIX "thermal_add: ignoring %s\n",
> 		   device->pnp.bus_id);
> 	    return_VALUE(-EINVAL);
>
>
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