[PATCH] powerpc: fix os-term usage on kernel panic

[Will Schmidt]

On Wed, 2007-11-28 at 14:18 -0600, Linas Vepstas wrote:
> On Tue, Nov 27, 2007 at 06:15:59PM -0600, Will Schmidt wrote:
> > (resending with the proper "from" addr this time). 
> > 
> > 
> > I'm seeing some funky behavior on power5/power6 partitions with this
> > patch.    A "/sbin/reboot" is now behaving much more like a
> > "/sbin/halt".
> > 
> > Anybody else seeing this, or is it time for me to call an exorcist for
> > my boxes? 
> 
> I beleive the patch
> http://www.nabble.com/-PATCH--powerpc-pseries:-tell-phyp-to-auto-restart-t4847604.html
> 
> will cure this problem.

It does not.   this code is getting called, but still turns the box into
a doorstop at /sbin/reboot. 

It does clear up if I apply this patch, which is a revert of part of
your earlier patch.

My js2X also turns into a doorstop after /sbin/reboot..     Though I'm
not going through a panic path, I wonder if the panic portion is OK and
this is what Olaf is hitting.  

diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c
index fdeefe5..c9fac5a 100644
--- a/arch/powerpc/platforms/pseries/setup.c
+++ b/arch/powerpc/platforms/pseries/setup.c
@@ -508,7 +508,7 @@ define_machine(pseries) {
 	.power_off		= pSeries_power_off,
 	.halt			= rtas_halt,
 	.panic			= rtas_panic_msg,
-	.machine_shutdown	= rtas_os_term,
+/*	.machine_shutdown	= rtas_os_term,*/
 	.get_boot_time		= rtas_get_boot_time,
 	.get_rtc_time		= rtas_get_rtc_time,
 	.set_rtc_time		= rtas_set_rtc_time,