$2 = (struct ktrace_node *) 0x0
(gdb)
-Oops. There is no trace to any vnode, whatsoever, for this process. The code will try to access p->p_tracenode and is bound to crash. This is the _zero virtual address_ we saw before. Now that we know the root of problem we write a [patch](http://gitweb.dragonflybsd.org/dragonfly.git/commit/a4a639859f6bc14f9f55142b4bd2289b2a56d7f2) and poke someone to review/commit it.
+Oops. There is no trace to any vnode, whatsoever, for this process. The code will try to access p->p_tracenode and is bound to crash. This is the _zero virtual address_ we saw before. It seems that the kernel tries to disable tracing of processes indiscriminately. Now that we know the root of problem we write a [patch](http://gitweb.dragonflybsd.org/dragonfly.git/commit/a4a639859f6bc14f9f55142b4bd2289b2a56d7f2) and poke someone to review/commit it.
# Possible places of confusion