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Subject: ${(qP)${var}} causes core dump
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From: Tanaka Akira <akr@jaist.ac.jp>
Date: 09 Jan 2000 17:25:46 +0900
Message-ID: <rsqln5z1wj9.fsf@crane.jaist.ac.jp>
User-Agent: Chao-gnus/6.12.5 AKEMI/1.13.2 (=?ISO-2022-JP?B?GyRCQTAbKEI=?=
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 (=?ISO-2022-JP?B?GyRCM3cbKEI=?= 10R4.0/5.0) Emacs/20.4
 (sparc-sun-solaris2.6) MULE/4.0 (HANANOEN)

zsh dumps core as follows.

Z(2):akr@is27e1u11% Src/zsh -f
is27e1u11% var=a
is27e1u11% a=(\* \*)
is27e1u11% print -lr ${(qP)${var}}
\*
\*
is27e1u11% print -lr ${(qP)${var}}
zsh: segmentation fault (core dumped)  Src/zsh -f

(gdb) where
#0  0xa2638 in bslashquote (s=0xd72a0 '\\' <repeats 200 times>..., e=0x0, instring=0) at utils.c:3103
#1  0x933c8 in paramsubst (l=0xd71e8, n=0xd7230, str=0xffbeef04, qt=0, ssub=0) at subst.c:1657
#2  0x8bc38 in stringsubst (list=0xd71e8, node=0xd7230, ssub=0) at subst.c:122
#3  0x8b84c in prefork (list=0xd71e8, flags=0) at subst.c:71
#4  0x3318c in execcmd (cmd=0xd7120, input=0, output=0, how=2, last1=2) at exec.c:1528
#5  0x312e0 in execpline2 (pline=0xd71c8, how=2, input=0, output=0, last1=0) at exec.c:1062
#6  0x3040c in execpline (l=0xd7108, how=2, last1=0) at exec.c:875
#7  0x2fd34 in execlist (list=0xd71d8, dont_change_job=0, exiting=0) at exec.c:744
#8  0x4f22c in loop (toplevel=1, justonce=0) at init.c:145
#9  0x1b160 in main (argc=2, argv=0xffbef46c) at ./main.c:89
-- 
Tanaka Akira