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-rw-r--r--sys/kern/kern_clock.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/sys/kern/kern_clock.c b/sys/kern/kern_clock.c
index aa5839b..ac404dc 100644
--- a/sys/kern/kern_clock.c
+++ b/sys/kern/kern_clock.c
@@ -37,6 +37,7 @@
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
+#include "opt_kdb.h"
#include "opt_device_polling.h"
#include "opt_hwpmc_hooks.h"
#include "opt_ntp.h"
@@ -555,7 +556,7 @@ watchdog_config(void *unused __unused, u_int cmd, int *error)
/*
* Handle a watchdog timeout by dumping interrupt information and
- * then panicking.
+ * then either dropping to DDB or panicking.
*/
static void
watchdog_fire(void)
@@ -578,7 +579,13 @@ watchdog_fire(void)
inttotal += *curintr++;
}
printf("Total %20ju\n", (uintmax_t)inttotal);
+
+#if defined(KDB) && !defined(KDB_UNATTENDED)
+ kdb_backtrace();
+ kdb_enter("watchdog timeout");
+#else
panic("watchdog timeout");
+#endif
}
#endif /* SW_WATCHDOG */
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