[issue926] tcsh consumes much cpu when trying to gdb anything

[Simon 'corecode' Schubert]

Nuno Antunes wrote:
Nuno Antunes <nuno.antunes at gmail.com> added the comment:

Commenting out the SIGCHLD signal masking part seems to fix this issue for me.
But i'm not sure if this is a correct fix or not.
Could you try the attached fix?

cheers
  simon
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Index: sys/signal2.h
===================================================================
RCS file: /home/dcvs/src/sys/sys/signal2.h,v
retrieving revision 1.1
diff -u -p -r1.1 signal2.h
--- sys/signal2.h	25 Feb 2007 23:17:13 -0000	1.1
+++ sys/signal2.h	24 Jan 2008 09:27:00 -0000
@@ -103,9 +103,8 @@ __cursignb(struct lwp *lp)
 	p = lp->lwp_proc;
 	tmpset = lwp_sigpend(lp);
 	SIGSETNAND(tmpset, lp->lwp_sigmask);
-	if ((!(p->p_flag & P_TRACED) && SIGISEMPTY(tmpset))) {
+	if (SIGISEMPTY(tmpset))
 		return(FALSE);
-	}
 	return (TRUE);
 }