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From: Konstantin Belousov <kib@FreeBSD.org>
Date: Mon, 10 May 2010 15:18:03 +0000 (UTC)
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Subject: svn commit: r207847 - head/sys/fs/procfs
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Author: kib
Date: Mon May 10 15:18:03 2010
New Revision: 207847
URL: http://svn.freebsd.org/changeset/base/207847

Log:
  For detach procfs ctl command, also clear P_STOPPED_TRACE process stop
  flag, and for each thread, TDB_SUSPEND debug flag, same as it is done by
  exit1() for orphaned debugee.
  
  Approved by:	des (procfs maintainer)
  MFC after:	1 week

Modified:
  head/sys/fs/procfs/procfs_ctl.c

Modified: head/sys/fs/procfs/procfs_ctl.c
==============================================================================
--- head/sys/fs/procfs/procfs_ctl.c	Mon May 10 11:53:40 2010	(r207846)
+++ head/sys/fs/procfs/procfs_ctl.c	Mon May 10 15:18:03 2010	(r207847)
@@ -110,6 +110,7 @@ static int
 procfs_control(struct thread *td, struct proc *p, int op)
 {
 	int error = 0;
+	struct thread *temp;
 
 	/*
 	 * Attach - attaches the target process for debugging
@@ -212,10 +213,12 @@ out:
 		}
 
 		/* not being traced any more */
-		p->p_flag &= ~P_TRACED;
+		p->p_flag &= ~(P_TRACED | P_STOPPED_TRACE);
 
 		/* remove pending SIGTRAP, else the process will die */
 		sigqueue_delete_proc(p, SIGTRAP);
+		FOREACH_THREAD_IN_PROC(p, temp)
+			temp->td_dbgflags &= ~TDB_SUSPEND;
 		PROC_UNLOCK(p);
 
 		/* give process back to original parent */