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authorAlfred Perlstein <alfred@FreeBSD.org>2012-12-10 23:11:26 +0000
committerAlfred Perlstein <alfred@FreeBSD.org>2012-12-10 23:11:26 +0000
commita94053ba390acf14734303b5f68b17a4ccf0d172 (patch)
tree683882b84df543d148af103c8bbdff2cfede948b
parentd06cadae1ea2efc587b4ccde9ef433b14aa74a64 (diff)
downloadsrc-a94053ba390acf14734303b5f68b17a4ccf0d172.tar.gz
src-a94053ba390acf14734303b5f68b17a4ccf0d172.zip
allow KASSERT to enter KDB.
Notes
Notes: svn path=/head/; revision=244099
-rw-r--r--sys/kern/kern_shutdown.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/sys/kern/kern_shutdown.c b/sys/kern/kern_shutdown.c
index 10267d4e353b..fdaa1664e3a1 100644
--- a/sys/kern/kern_shutdown.c
+++ b/sys/kern/kern_shutdown.c
@@ -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, warn_only, CTLFLAG_RW | CTLFLAG_TUN,
"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