Author: alfred
Date: Mon Dec 10 23:11:26 2012
New Revision: 244099
URL: http://svnweb.freebsd.org/changeset/base/244099
Log:
allow KASSERT to enter KDB.
Modified:
head/sys/kern/kern_shutdown.c
Modified: head/sys/kern/kern_shutdown.c
==============================================================================
--- head/sys/kern/kern_shutdown.c Mon Dec 10 23:09:55 2012
(r244098)
+++ head/sys/kern/kern_shutdown.c Mon Dec 10 23:11:26 2012
(r244099)
@@ -542,6 +542,9 @@ shutdown_reset(void *junk, int howto)
#ifdef INVARIANTS
static int kassert_warn_only = 0;
+#ifdef KDB
+static int kassert_do_kdb = 0;
+#endif
#ifdef KTR
static int kassert_do_ktr = 0;
#endif
@@ -558,6 +561,12 @@ SYSCTL_INT(_debug_kassert, OID_AUTO, war
"KASSERT triggers a panic (1) or just a warning (0)");
TUNABLE_INT("debug.kassert.warn_only", &kassert_warn_only);
+#ifdef KDB
+SYSCTL_INT(_debug_kassert, OID_AUTO, do_kdb, CTLFLAG_RW | CTLFLAG_TUN,
+ &kassert_do_kdb, 0, "KASSERT will enter the debugger");
+TUNABLE_INT("debug.kassert.do_kdb", &kassert_do_kdb);
+#endif
+
#ifdef KTR
SYSCTL_UINT(_debug_kassert, OID_AUTO, do_ktr, CTLFLAG_RW | CTLFLAG_TUN,
&kassert_do_ktr, 0,
@@ -650,6 +659,11 @@ kassert_panic(const char *fmt, ...)
kdb_backtrace();
}
}
+#ifdef KDB
+ if (kassert_do_kdb) {
+ kdb_enter(KDB_WHY_KASSERT, buf);
+ }
+#endif
atomic_add_int(&kassert_warnings, 1);
}
#endif
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