[BusyBox] Reboot Problem

[Simon Poole]

Brent Davidson wrote:
> I have compiled BusyBox and uClibc along with kernel 2.6.9 to run on an 
> embedded system built around an NX-Geode (SC1100) cpu.  My problem is 
> that the system freezes when I try to use the reboot command.  I get the 
> "Restarting System" message issued by the kernel then the system goes no 
> further.  I have tried this system on two different boards (PC-Engines 
> Wrap 2c and Soekris Net4511) and I have the same result with both boards.
> 
> I know this might not be a BusyBox issue, but I'm hoping someone might 
> be able to point me in teh right direction.
> 

I have had problems with busybox reboot on my EP9312 ARM platform.  I 
can't remember whether the behaviour was the same as you are 
experiencing, but the attached patch works for me.  I've never really 
worked out why kill_init isn't producing the right behaviour.

The patch reverts to Busybox's alternate behaviour of using 
bb_shutdown_system, which does a SIGTERM, a few syncs, a SIGKILL, and 
then a kernel reboot().

--
Simon Poole
www.appliancestudio.com


-------------- next part --------------
diff -urN busybox-1.00-pre8.orig/init/halt.c busybox-1.00-pre8/init/halt.c
--- busybox-1.00-pre8.orig/init/halt.c	2003-07-22 10:41:39.000000000 +0100
+++ busybox-1.00-pre8/init/halt.c	2004-04-02 10:44:54.000000000 +0100
@@ -37,12 +37,12 @@
 		sleep(atoi(delay));
 	}
 
-#ifndef CONFIG_INIT
+//#ifndef CONFIG_INIT
 #ifndef RB_HALT_SYSTEM
 #define RB_HALT_SYSTEM		0xcdef0123
 #endif
 	return(bb_shutdown_system(RB_HALT_SYSTEM));
-#else
-	return kill_init(SIGUSR1);
-#endif
+//#else
+//	return kill_init(SIGUSR1);
+//#endif
 }
diff -urN busybox-1.00-pre8.orig/init/init_shared.c busybox-1.00-pre8/init/init_shared.c
--- busybox-1.00-pre8.orig/init/init_shared.c	2004-02-22 04:17:26.000000000 +0000
+++ busybox-1.00-pre8/init/init_shared.c	2004-04-02 10:46:02.000000000 +0100
@@ -45,7 +45,7 @@
 #endif
 }
 
-#ifndef CONFIG_INIT
+//#ifndef CONFIG_INIT
 const char * const bb_shutdown_format = "\r%s\n";
 extern int bb_shutdown_system(unsigned long magic)
 {
@@ -92,4 +92,4 @@
 	reboot(magic);
 	return 0; /* Shrug */
 }
-#endif
+//#endif
diff -urN busybox-1.00-pre8.orig/init/poweroff.c busybox-1.00-pre8/init/poweroff.c
--- busybox-1.00-pre8.orig/init/poweroff.c	2003-07-22 10:41:39.000000000 +0100
+++ busybox-1.00-pre8/init/poweroff.c	2004-04-02 10:45:12.000000000 +0100
@@ -37,14 +37,14 @@
 		sleep(atoi(delay));
 	}
 
-#ifndef CONFIG_INIT
+//#ifndef CONFIG_INIT
 #ifndef RB_POWER_OFF
 #define RB_POWER_OFF		0x4321fedc
 #endif
 	return(bb_shutdown_system(RB_POWER_OFF));
-#else
-	return kill_init(SIGUSR2);
-#endif
+//#else
+//	return kill_init(SIGUSR2);
+//#endif
 }
 
 /*
diff -urN busybox-1.00-pre8.orig/init/reboot.c busybox-1.00-pre8/init/reboot.c
--- busybox-1.00-pre8.orig/init/reboot.c	2003-07-22 18:04:54.000000000 +0100
+++ busybox-1.00-pre8/init/reboot.c	2004-04-02 10:44:36.000000000 +0100
@@ -37,14 +37,14 @@
 		sleep(atoi(delay));
 	}
 
-#ifndef CONFIG_INIT
+//#ifndef CONFIG_INIT
 #ifndef RB_AUTOBOOT
 #define RB_AUTOBOOT		0x01234567
 #endif
 	return(bb_shutdown_system(RB_AUTOBOOT));
-#else
-	return kill_init(SIGTERM);
-#endif
+//#else
+//	return kill_init(SIGTERM);
+//#endif
 }
 
 /*