[parisc-linux] towards unattended reboot

[lamont@hp.com]

Q: Given a 2.4.19 kernel, how do you get it to automatically reboot on crash?

A: see below.  The first one breaks the loop on dumping the stack.  The
   second part resets the machine in parisc_terminate().

thoughts?
lamont

diff -ur x/kernel-source-2.4.19-hppa/arch/parisc/kernel/traps.c kernel-source-2.4.19-hppa/arch/parisc/kernel/traps.c
--- x/kernel-source-2.4.19-hppa/arch/parisc/kernel/traps.c	2002-10-19 16:25:59.000000000 -0600
+++ kernel-source-2.4.19-hppa/arch/parisc/kernel/traps.c	2002-12-06 00:07:40.000000000 -0700
@@ -148,6 +148,11 @@
 void show_stack(struct pt_regs *regs)
 {
 #if 1
+	static int tried_stack=0;
+	if (tried_stack)
+		return;
+	tried_stack++;
+
 	/* If regs->sr[7] == 0, we are on a kernel stack */
 	if (regs->sr[7] == 0) {
 
@@ -462,6 +467,12 @@
 	 * system will shut down immediately right here. */
 	pdc_soft_power_button(0);
 	
+	{
+		static int tried_once=0;
+		if (!tried_once++)
+			__raw_writel(5,0xfffe0030);
+	}
+	
 	for(;;)
 	    ;
 }