OS-3820 lxbrand ptrace(2): the next generation
OS-3685 lxbrand PTRACE_O_TRACEFORK race condition
OS-3834 lxbrand 64-bit strace(1) reports 64-bit process as using x32 ABI
OS-3794 lxbrand panic on init signal death
Reviewed by: Robert Mustacchi <rm@joyent.com>
Reviewed by: Jerry Jelinek <jerry.jelinek@joyent.com>
Reviewed by: Bryan Cantrill <bryan@joyent.com>

@@ -23,11 +23,11 @@
  * Copyright 2010 Sun Microsystems, Inc.  All rights reserved.
  * Use is subject to license terms.
  */
 
 /*
- * Copyright (c) 2013, Joyent, Inc.  All rights reserved.
+ * Copyright 2015, Joyent, Inc.
  */
 
 #include <sys/types.h>
 #include <sys/uio.h>
 #include <sys/param.h>

@@ -1479,11 +1479,11 @@
                         /* Set signaled sleeping/waiting lwp running */
                         setrun_locked(t);
                 } else if (t->t_state == TS_STOPPED && sig == SIGKILL) {
                         /* If SIGKILL, set stopped lwp running */
                         p->p_stopsig = 0;
-                        t->t_schedflag |= TS_XSTART | TS_PSTART;
+                        t->t_schedflag |= TS_XSTART | TS_PSTART | TS_BSTART;
                         t->t_dtrace_stop = 0;
                         setrun_locked(t);
                 }
                 t->t_sig_check = 1;     /* so ISSIG will be done */
                 thread_unlock(t);