From 7f2a6fa17b09b452a591737e50718fabdf394767 Mon Sep 17 00:00:00 2001
From: David du Colombier <0intro@gmail.com>
Date: Thu, 18 Apr 2002 00:00:00 +0000
Subject: [PATCH] Plan 9 from Bell Labs 2002-04-18

---
 pc/fns.h       | 1 +
 port/taslock.c | 2 ++
 2 files changed, 3 insertions(+)

diff --git a/pc/fns.h b/pc/fns.h
index 75432ea59d8c93190867a9fa6e7b344cd911d62b..15af5306e53f6d1bb04d4e4a61b59b06a5dc4704 100644
--- a/pc/fns.h
+++ b/pc/fns.h
@@ -131,6 +131,7 @@ void	touser(void*);
 void	trapenable(int, void (*)(Ureg*, void*), void*, char*);
 void	trapinit(void);
 int	tas(void*);
+uvlong	tscticks(uvlong*);
 ulong	umbmalloc(ulong, int, int);
 void	umbfree(ulong, int);
 ulong	umbrwmalloc(ulong, int, int);
diff --git a/port/taslock.c b/port/taslock.c
index 90262941514829af57150229bd5565dfdba03895..6b884791c135df8626d3eedf5855767d9e454e78 100644
--- a/port/taslock.c
+++ b/port/taslock.c
@@ -182,6 +182,8 @@ iunlock(Lock *l)
 		print("iunlock: not locked: pc %luX\n", getcallerpc(&l));
 	if(!l->isilock)
 		print("iunlock of lock: pc %lux, held by %lux\n", getcallerpc(&l), l->pc);
+	if(islo())
+		print("iunlock while lo: pc %lux, held by %lux\n", getcallerpc(&l), l->pc);
 
 	sr = l->sr;
 	l->key = 0;