On Sat, Aug 13, 2011 at 11:52:08AM -0700, Bart Schaefer wrote:
>  	if (findproc(pid, &jn, &pn, 0)) {
> +	    if (((jn->stat & STAT_BUILTIN) ||
> +		 (list_pipe && (jobtab[thisjob].stat & STAT_BUILTIN))) &&
> +		WIFSTOPPED(status) && WSTOPSIG(status) == SIGTSTP) {
> +		killjb(jn, SIGCONT);
> +		zwarn("job can't be suspended");
> +	    } else {
Sometimes, zsh segfaults here while doing B03print.ztst in POSIX
locale with thisjob equals to -1.  Not 100% reproducable, though.

$ LC_ALL=C zsh +Z -f ./ztst.zsh ./B03print.ztst
./B03print.ztst: starting.
[1]    20076 segmentation fault (core dumped)  LC_ALL=C zsh +Z -f ./ztst.zsh ./B03print.ztst
...

Core was generated by `zsh +Z -f ./ztst.zsh ./B03print.ztst'.
Program terminated with signal 11, Segmentation fault.
#0  0x00000000004745b1 in wait_for_processes () at signals.c:494
494                      (list_pipe && (jobtab[thisjob].stat & STAT_BUILTIN))) &&
(gdb) list
489              * Find the process and job containing this pid and
490              * update it.
491              */
492             if (findproc(pid, &jn, &pn, 0)) {
493                 if (((jn->stat & STAT_BUILTIN) ||
494                      (list_pipe && (jobtab[thisjob].stat & STAT_BUILTIN))) &&
495                     WIFSTOPPED(status) && WSTOPSIG(status) == SIGTSTP) {
496                     killjb(jn, SIGCONT);
497                     zwarn("job can't be suspended");
498                 } else {
(gdb) p thisjob
$1 = -1

-- 
Regards,    --
Sir Raorn.   --- http://thousandsofhate.blogspot.com/