X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=kernel%2Fpanic.c;h=3f93784a4207300283552b643f3b67bf19890757;hb=4b659086703c3cfdabfc916b517590ad55d1ddfa;hp=3c1581eb65bd24fdf2581e63f1f9469b707f2cef;hpb=5273a3df6485dc2ad6aa7ddd441b9a21970f003b;p=linux-2.6.git

diff --git a/kernel/panic.c b/kernel/panic.c
index 3c1581eb6..3f93784a4 100644
--- a/kernel/panic.c
+++ b/kernel/panic.c
@@ -16,7 +16,6 @@
 #include <linux/notifier.h>
 #include <linux/init.h>
 #include <linux/sysrq.h>
-#include <linux/syscalls.h>
 #include <linux/interrupt.h>
 #include <linux/nmi.h>
 
@@ -37,6 +36,15 @@ static int __init panic_setup(char *str)
 }
 __setup("panic=", panic_setup);
 
+static long no_blink(long time)
+{
+	return 0;
+}
+
+/* Returns how long it waited in ms */
+long (*panic_blink)(long time);
+EXPORT_SYMBOL(panic_blink);
+
 /**
  *	panic - halt the system
  *	@fmt: The text string to print
@@ -49,6 +57,7 @@ __setup("panic=", panic_setup);
  
 NORET_TYPE void panic(const char * fmt, ...)
 {
+	long i;
 	static char buf[1024];
 	va_list args;
 #if defined(CONFIG_ARCH_S390)
@@ -59,32 +68,30 @@ NORET_TYPE void panic(const char * fmt, ...)
 	va_start(args, fmt);
 	vsnprintf(buf, sizeof(buf), fmt, args);
 	va_end(args);
-	printk(KERN_EMERG "Kernel panic: %s\n",buf);
-	if (in_interrupt())
-		printk(KERN_EMERG "In interrupt handler - not syncing\n");
-	else if (!current->pid)
-		printk(KERN_EMERG "In idle task - not syncing\n");
-	else
-		sys_sync();
+	printk(KERN_EMERG "Kernel panic - not syncing: %s\n",buf);
 	bust_spinlocks(0);
 
 #ifdef CONFIG_SMP
 	smp_send_stop();
 #endif
 
-       notifier_call_chain(&panic_notifier_list, 0, buf);
+	notifier_call_chain(&panic_notifier_list, 0, buf);
+
+	if (!panic_blink)
+		panic_blink = no_blink;
 
 	if (panic_timeout > 0)
 	{
-		int i;
 		/*
 	 	 * Delay timeout seconds before rebooting the machine. 
 		 * We can't use the "normal" timers since we just panicked..
 	 	 */
 		printk(KERN_EMERG "Rebooting in %d seconds..",panic_timeout);
-		for (i = 0; i < panic_timeout; i++) {
+		for (i = 0; i < panic_timeout*1000; ) {
 			touch_nmi_watchdog();
-			mdelay(1000);
+			i += panic_blink(i);
+			mdelay(1);
+			i++;
 		}
 		/*
 		 *	Should we run the reboot notifier. For the moment Im
@@ -105,8 +112,11 @@ NORET_TYPE void panic(const char * fmt, ...)
         disabled_wait(caller);
 #endif
 	local_irq_enable();
-	for (;;)
-		;
+	for (i = 0;;) {
+		i += panic_blink(i);
+		mdelay(1);
+		i++;
+	}
 }
 
 EXPORT_SYMBOL(panic);
@@ -117,6 +127,9 @@ EXPORT_SYMBOL(panic);
  *  'P' - Proprietary module has been loaded.
  *  'F' - Module has been forcibly loaded.
  *  'S' - SMP with CPUs not designed for SMP.
+ *  'R' - User forced a module unload.
+ *  'M' - Machine had a machine check experience.
+ *  'B' - System has hit bad_page.
  *
  *	The string is overwritten by the next call to print_taint().
  */
@@ -125,12 +138,21 @@ const char *print_tainted(void)
 {
 	static char buf[20];
 	if (tainted) {
-		snprintf(buf, sizeof(buf), "Tainted: %c%c%c",
+		snprintf(buf, sizeof(buf), "Tainted: %c%c%c%c%c%c",
 			tainted & TAINT_PROPRIETARY_MODULE ? 'P' : 'G',
 			tainted & TAINT_FORCED_MODULE ? 'F' : ' ',
-			tainted & TAINT_UNSAFE_SMP ? 'S' : ' ');
+			tainted & TAINT_UNSAFE_SMP ? 'S' : ' ',
+			tainted & TAINT_FORCED_RMMOD ? 'R' : ' ',
+ 			tainted & TAINT_MACHINE_CHECK ? 'M' : ' ',
+			tainted & TAINT_BAD_PAGE ? 'B' : ' ');
 	}
 	else
 		snprintf(buf, sizeof(buf), "Not tainted");
 	return(buf);
 }
+
+void add_taint(unsigned flag)
+{
+	tainted |= flag;
+}
+EXPORT_SYMBOL(add_taint);