>Number:         16010
>Category:       bin
>Synopsis:       /bin/sh hangs when trapping signal in wait
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    bin-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Fri Mar 22 09:43:01 PST 2002
>Closed-Date:
>Last-Modified:
>Originator:     Andreas Gustafsson
>Release:        NetBSD 1.5ZA
>Organization:
Nominum Inc
>Environment:
System: NetBSD trebuchet.engr.nominum.com 1.5ZA NetBSD 1.5ZA (TREBUCHET) #0: Sat Feb 2 15:04:55 PST 2002 gson@trebuchet.engr.nominum.com:/usr/src/sys/arch/i386/compile/TREBUCHET i386
Architecture: i386
Machine: i386
>Description:

When using the /bin/sh "trap" command to trap a signal while the shell
is executing a "wait" command, the shell does not execute the trap
action; instead it just hangs.

>How-To-Repeat:

Create a shell script "test.sh" containing the lines

  sleep 1000 &
  trap "echo aborted" 2
  wait

Run the script with "/bin/sh test.sh" and attempt to abort it by
typing the interrupt character (control-C).  Notice that this has no
effect.

The script works as expected (prints "aborted" and exits) if you use
/bin/ksh, /usr/pkg/bin/bash, or the /bin/sh of FreeBSD or Solaris 8.

>Fix:

Unknown.
>Release-Note:
>Audit-Trail:
>Unformatted: