Fix ptrace bug when reattaching to a detached process

2009-11-09 08:12:25 +00:00
parent ebbce7507b
commit a07f8d7646
3 changed files with 92 additions and 1 deletions
--- a/kernel/system/do_trace.c
+++ b/kernel/system/do_trace.c
@@ -163,6 +163,10 @@ register message *m_ptr;
 	m_ptr->CTL_DATA = 0;
 	break;

+  case T_DETACH:		/* detach tracer */
+	rp->p_misc_flags &= ~MF_SC_ACTIVE;
+
+	/* fall through */
  case T_RESUME:		/* resume execution */
 	RTS_LOCK_UNSET(rp, P_STOP);
 	m_ptr->CTL_DATA = 0;