coredump on dev-7 (ALL_EXPORT)

["Naoki Wakamatsu" <m5032106@u-aizu.ac.jp>]

Zsh-dev-7 generates core file by executing as follows:

(On Linux-2.2.14 or Solaris2.6)
% zsh -f
% autoload -U compinit; compinit
% setopt ALL_EXPORT
% sudo rpm /[TAB]
zsh: 17285 segmentation fault (core dumped)  zsh -f
%

The backtrace is

Program terminated with signal 11, Segmentation fault.
Reading symbols from /usr/lib/libsocket.so.1...done.
Reading symbols from /usr/lib/libdl.so.1...done.
Reading symbols from /usr/lib/libnsl.so.1...done.
Reading symbols from /usr/lib/libm.so.1...done.
Reading symbols from /usr/lib/libc.so.1...done.
Reading symbols from /usr/lib/libmp.so.2...done.
Reading symbols from /usr/platform/SUNW,Ultra-5_10/lib/libc_psr.so.1...done.
#0  mkenvstr (name=0x139d68 "opt_args", value=0x0, flags=4112) at params.c:2995
2995             *s && (*s++ != Meta || *s++ != 32); len_value++);
(gdb) backtrace 
#0  mkenvstr (name=0x139d68 "opt_args", value=0x0, flags=4112) at params.c:2995
#1  0x46ce0 in addenv_internal (name=0x139d68 "opt_args", value=0x0, 
    flags=4112, add=1) at params.c:2950
#2  0x46e3c in addenv (name=0x139d68 "opt_args", value=0x0, flags=4112)
    at params.c:3013
#3  0x449f8 in export_param (pm=0x111918) at params.c:1498
#4  0x45d18 in unsetparam_pm (pm=0x10d4e8, altflag=1120536, exp=902144)
    at params.c:2055
#5  0x472d0 in scanendscope (hn=0x10d4e8, flags=0) at params.c:3200
#6  0x2969c in scanhashtable (ht=0xe2fa0, sorted=0, flags1=0, flags2=0, 
    scanfunc=0x4717c <scanendscope>, scanflags=0) at hashtable.c:403
#7  0x47174 in endparamscope () at params.c:3144
#8  0x23694 in runshfunc (prog=0x116330, wrap=0x0, name=0x100828 "_rpm")
    at exec.c:3444
#9  0x77090 in comp_wrapper (prog=0x116330, w=0x0, name=0x100828 "_rpm")
    at complete.c:1223
#10 0x23610 in runshfunc (prog=0x116330, wrap=0xcfd40, name=0x100828 "_rpm")
    at exec.c:3430
#11 0x234a4 in doshfunc (name=0x10d760 "_rpm", prog=0x116330, 
    doshargs=0x13fda0, flags=0, noreturnval=0) at exec.c:3375
#12 0x22fe4 in execshfunc (shf=0x139cd8, args=0x1007e8) at exec.c:3184
#13 0x21108 in execcmd (state=0xefff9438, input=0, output=0, how=18, last1=2)
    at exec.c:2269
:
:
:
#145 0x1e658 in execpline2 (state=0xefffe9c0, pcode=294, how=2, input=0, 
    output=0, last1=0) at exec.c:1185
#146 0x1dbdc in execpline (state=0xefffe9c0, slcode=899072, how=2, last1=0)
    at exec.c:978
#147 0x1d6fc in execlist (state=0xefffe9c0, dont_change_job=1, exiting=0)
    at exec.c:823
#148 0x39bb4 in execfor (state=0xefffe9c0, do_exec=0) at loop.c:140
#149 0x20f4c in execcmd (state=0xefffe9c0, input=0, output=0, how=2, last1=2)
    at exec.c:2228
#150 0x1e658 in execpline2 (state=0xefffe9c0, pcode=256, how=2, input=0, 
    output=0, last1=0) at exec.c:1185
#151 0x1dbdc in execpline (state=0xefffe9c0, slcode=899072, how=2, last1=0)
    at exec.c:978
#152 0x1d6fc in execlist (state=0xefffe9c0, dont_change_job=1, exiting=0)
    at exec.c:823
#153 0x1d400 in execode (p=0xe1480, dont_change_job=1, exiting=0) at exec.c:729
#154 0x23684 in runshfunc (prog=0xe1480, wrap=0x0, 
    name=0xfcb88 "_main_complete") at exec.c:3442
#155 0x77090 in comp_wrapper (prog=0xe1480, w=0x0, 
    name=0xfcb88 "_main_complete") at complete.c:1223
#156 0x23610 in runshfunc (prog=0xe1480, wrap=0xcfd40, 
    name=0xfcb88 "_main_complete") at exec.c:3430
#157 0x234a4 in doshfunc (name=0x116460 "_main_complete", prog=0xe1480, 
    doshargs=0x0, flags=0, noreturnval=0) at exec.c:3375
#158 0x78f1c in callcompfunc (s=0xe3c50 "", fn=0x116460 "_main_complete")
    at compcore.c:774
#159 0x795c0 in makecomplist (s=0x142da8 "/", incmd=1, lst=905216)
    at compcore.c:924
#160 0x77b28 in do_completion (dummy=0x0, dat=0x2) at compcore.c:342
#161 0x40614 in runhookdef (h=0xd318c, d=0xefffeee8) at module.c:1835
#162 0xa9438 in docompletion (s=0x142da8 "/", lst=0, incmd=0)
    at zle_tricky.c:1729
#163 0xa6f3c in docomplete (lst=0) at zle_tricky.c:774
#164 0xa5c50 in expandorcomplete (args=0xdd400) at zle_tricky.c:282
#165 0xa58c4 in completecall (args=0xd3108) at zle_tricky.c:176
#166 0x9ce1c in execzlefunc (func=0xd10c4, args=0xd3108) at zle_main.c:655
#167 0x9ca50 in zleread (lp=0xeffff148 "", rp=0xdc400 "", flags=902144)
    at zle_main.c:567
#168 0x32020 in inputline () at input.c:265
#169 0x31ee0 in ingetc () at input.c:210
#170 0x2b330 in ihgetc () at hist.c:236
#171 0x3697c in gettok () at lex.c:628
#172 0x36110 in yylex () at lex.c:344
#173 0x47e98 in parse_event () at parse.c:425
#174 0x2f60c in loop (toplevel=1, justonce=0) at init.c:123
#175 0x31bd8 in zsh_main (argc=2, argv=0x1) at init.c:1197
#176 0x121d4 in main (argc=2, argv=0xeffff63c) at ./main.c:37