Re: core dump on parameter completion

[Peter Stephenson <pws@xxxxxxxxxxxxxxxxx>]

Naoki Wakamatsu wrote:
> 3.1.6-test-2 generates core file on parameter completion,
> 
> % zsh -f
> % autoload -U compinit
> % compinit
> % compconf completer=_approximate 
> % echo $ZSH_v[TAB]zsh: 15442 segmentation fault (core dumped)  zsh -f

I get this too, on a different system (HPUX 10.20) --- here's a backtrace
with an unmodified 3.1.6-test-3 (which I'm about to upload). 

#0  0xc0082c80 in __strnlen ()
#1  0xc00fec34 in strncpy ()
#2  0xc191023c in inststrlen (
    str=0x40095ec8 <Address 0x40095ec8 out of bounds>, move=1, len=4)
    at zle_tricky.c:7219
#3  0xc191066c in cline_str (l=0x40034148, ins=0, csp=0x7aff28e0)
    at zle_tricky.c:7283
#4  0xc1911048 in unambig_data (cp=0x0) at zle_tricky.c:7435
#5  0xc15af82c in get_unambig (pm=0x4008aa30) at compctl.c:2324
#6  0x62fe0 in getstrvalue (v=0x7b03c3d0) at params.c:1266
#7  0x5f1f4 in scanparamvals (hn=0x4008aa30, flags=3) at params.c:381
#8  0x36320 in scanhashtable (ht=0x40024090, sorted=0, flags1=0, 
    flags2=131072, scanfunc=0x4000ca22 <default_watchfmt+2394>, scanflags=3)
    at hashtable.c:403
#9  0x5f3ec in paramvalarr (ht=0x40024090, flags=3) at params.c:403
#10 0x5f4d8 in getvaluearr (v=0x40053670) at params.c:421
#11 0x63324 in getarrvalue (v=0x40053670) at params.c:1310
#12 0x768d4 in $00000128 () at subst.c:1092
#13 0x729ec in stringsubst (list=0x40053640, node=0x40053660, ssub=0)
    at subst.c:122
#14 0x726e0 in prefork (list=0x40053640, flags=2) at subst.c:71
#15 0x23210 in addvars (l=0x40074fa8, export=0) at exec.c:1345
#16 0x23e2c in execcmd (cmd=0x40047e28, input=0, output=0, how=2, last1=2)
#17 0x222f4 in execpline2 (pline=0x40083ff0, how=2, input=0, output=0, last1=0)
    at exec.c:1054
#18 0x216a4 in execpline (l=0x4003cf08, how=2, last1=0) at exec.c:869
#19 0x210ac in execlist (list=0x40083fe0, dont_change_job=1, exiting=0)
    at exec.c:738
#20 0x287e4 in execautofn (cmd=0x4007c7c0, args=0x0, flags=0) at exec.c:2897
#21 0x256d8 in execcmd (cmd=0x4007c7c0, input=0, output=0, how=2, last1=2)
    at exec.c:1976
#22 0x222f4 in execpline2 (pline=0x40081490, how=2, input=0, output=0, last1=0)
    at exec.c:1054
#23 0x216a4 in execpline (l=0x4007dc68, how=2, last1=0) at exec.c:869
#24 0x210ac in execlist (list=0x400814a0, dont_change_job=1, exiting=0)
    at exec.c:738
#25 0x28d6c in runshfunc (list=0x8, wrap=0x2, name=0x0) at exec.c:3019
#26 0x55cb4 in dupstring (s=0x7070726f <Address 0x7070726f out of bounds>)
    at mem.c:494
#27 0x82874 in arrdup (s=0x400814a0) at utils.c:2234
#28 0xc15aff60 in comp_wrapper (list=0x400814a0, w=0x0, 
    name=0x4007de58 "_main_complete") at compctl.c:2415
#29 0x28cb0 in runshfunc (list=0x8, wrap=0xad4b5d35, name=0x0) at exec.c:3006
#30 0x55adc in zalloc (size=6) at mem.c:430
#31 0x55d24 in ztrdup (s=0x400814a0 "") at mem.c:507
#32 0x28a88 in doshfunc (name=0x4007de58 "_main_complete", list=0x400814a0, 
    doshargs=0x0, flags=0, noreturnval=0) at exec.c:2957
#33 0xc1903ed4 in callcompfunc (s=0x40034020 "ZSH_v", 
    fn=0x4007de58 "_main_complete") at zle_tricky.c:4778
#34 0xc1904af4 in makecomplist (s=0x40034020 "ZSH_v", incmd=0, lst=0)
    at zle_tricky.c:4935
#35 0xc1902180 in docompletion (s=0x4004d920 "\205ZSH_v", lst=0, incmd=0)
    at zle_tricky.c:4449
#36 0xc18f3fb4 in docomplete (lst=0) at zle_tricky.c:1076
#37 0xc18f1430 in expandorcomplete (args=0x7aff25d8) at zle_tricky.c:491
#38 0xc18f0dd8 in completecall (args=0x7aff25d8) at zle_tricky.c:390
#39 0xc18de98c in execzlefunc (func=0x7afecc90, args=0x7aff25d8)
    at zle_main.c:628
#40 0xc18de1dc in zleread (lp=0x40037f40 "%S[%m]%s %~ %# ", rp=0x0, flags=3)
    at zle_main.c:547
#41 0x42b10 in inputline () at input.c:265
#42 0x42998 in ingetc () at input.c:210
#43 0x396f8 in ihgetc () at hist.c:242
#44 0x4a0d8 in gettok () at lex.c:545
#45 0x49690 in yylex () at lex.c:308
#46 0x67fbc in parse_event () at parse.c:105
#47 0x3f5e0 in loop (toplevel=1, justonce=0) at init.c:113
#48 0xf9b8 in main (argc=2, argv=0x7b03aae4) at main.c:89

-- 
Peter Stephenson <pws@xxxxxxxxxxxxxxxxx>       Tel: +39 050 844536
WWW:  http://www.ifh.de/~pws/
Dipartimento di Fisica, Via Buonarroti 2, 56127 Pisa, Italy