[PATCH] prevent nested panic from soft lockup detection

From: Jan Beulich
Date: Mon Jan 30 2006 - 04:06:43 EST


From: Jan Beulich <jbeulich@xxxxxxxxxx>

Suppress triggering a nested panic due to soft lockup detection.

Signed-Off-By: Jan Beulich <jbeulich@xxxxxxxxxx>


From: Jan Beulich <jbeulich@xxxxxxxxxx>

Suppress triggering a nested panic due to soft lockup detection.

Signed-Off-By: Jan Beulich <jbeulich@xxxxxxxxxx>

diff -Npru /home/jbeulich/tmp/linux-2.6.16-rc1/kernel/panic.c 2.6.16-rc1-panic-softlockup/kernel/panic.c
--- /home/jbeulich/tmp/linux-2.6.16-rc1/kernel/panic.c 2006-01-27 15:10:49.000000000 +0100
+++ 2.6.16-rc1-panic-softlockup/kernel/panic.c 2006-01-25 09:55:53.000000000 +0100
@@ -107,6 +107,7 @@ NORET_TYPE void panic(const char * fmt,
printk(KERN_EMERG "Rebooting in %d seconds..",panic_timeout);
for (i = 0; i < panic_timeout*1000; ) {
touch_nmi_watchdog();
+ touch_softlockup_watchdog();
i += panic_blink(i);
mdelay(1);
i++;
@@ -130,6 +131,7 @@ NORET_TYPE void panic(const char * fmt,
#endif
local_irq_enable();
for (i = 0;;) {
+ touch_softlockup_watchdog();
i += panic_blink(i);
mdelay(1);
i++;