1 This fix is from the community, details in the following location.

     2 http://lists.research.att.com/pipermail/ast-developers/2014q1/003846.html

     3 ---

     4 --- a/src/cmd/ksh93/bltins/alarm.c_org	Tue Mar 25 13:42:56 2014

     5 +++ b/src/cmd/ksh93/bltins/alarm.c	Tue Mar 25 13:43:07 2014

     6 @@ -122,7 +122,7 @@

     7  		tp->timeout = 0;

     8  	tp->flags |= L_FLAG;

     9  	tp->sh->sigflag[SIGALRM] |= SH_SIGALRM;

    10 -	if(sh_isstate(SH_TTYWAIT))

    11 +	if(sh_isstate(SH_TTYWAIT) && !tp->sh->bltinfun)

    12  		sh_timetraps(tp->sh);

    13  }

    14  

    15 --- a/src/cmd/ksh93/sh/xec.c_org	Tue Mar 25 13:46:48 2014

    16 +++ b/src/cmd/ksh93/sh/xec.c	Tue Mar 25 13:48:18 2014

    17 @@ -2720,6 +2720,11 @@

    18  			break;

    19  		    }

    20  		}

    21 +		if(shp->trapnote&SH_SIGALRM)

    22 +		{

    23 +			shp->trapnote &= ~SH_SIGALRM;

    24 +			sh_timetraps(shp);

    25 +		}

    26  		if(shp->trapnote || (shp->exitval && sh_isstate(SH_ERREXIT)) &&

    27  			t && echeck) 

    28  			sh_chktrap(shp);