1 files changed, 3 insertions, 0 deletions
diff --git a/src/os.c b/src/os.c
index 0c0f4b357..e1d0ebc6c 100644
--- a/src/os.c
+++ b/src/os.c
@@ -397,6 +397,9 @@ int sqliteOsLock(OsFile id, int wrlock){
   lock.l_whence = SEEK_SET;
   lock.l_start = lock.l_len = 0L;
   rc = fcntl(id, F_SETLK, &lock);
+  if( rc ){
+    fcntl(id, F_GETLK, &lock);  /* For debugging */
+  }
   return rc==0 ? SQLITE_OK : SQLITE_BUSY;
 #endif
 #if OS_WIN