Date: Wed, 01 Dec 2004 23:40:07 +0900 (JST) From: SAITOU Toshihide <toshi@ruby.ocn.ne.jp> To: current@freebsd.org Subject: Re: bash/readline coredumps Message-ID: <20041201.234007.226808332.toshi@ruby.ocn.ne.jp> In-Reply-To: <20041130081804.GA22353@xs4all.nl> References: <20041130081804.GA22353@xs4all.nl>
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From: Michiel Boland <michiel@boland.org>
Date: Tue, 30 Nov 2004 09:18:04 +0100
> Lately I am getting core dumps from bash (bash-2.05b.007_2 from ports).
> To reproduce: type a command that spans multiple lines, like
I couldn't reproduce a core dump by your instruction, but I
had possibly experienced a similar/related bash core dump
since around 5.3-RELEASE.
$ ./bash
$ /bin/ls -ld /var/db/pkg/v*
Segmentation fault (core dumped)
$ gdb ./bash bash.core
#0 0x48213499 in memcpy () from /lib/libc.so.5
(gdb) bt
#0 0x48213499 in memcpy () from /lib/libc.so.5
#1 0x080ba348 in xmbsrtowcs (dest=0x1d, src=0xbfbfe804, len=0,
pstate=0xbfbfe760) at xmbsrtowcs.c:67
#2 0x080ba123 in xstrmatch (pattern=0x0,
string=0x8104fe4 "cyrus-sasl-saslauthd-2.1.19", flags=5) at smatch.c:388
#3 0x080b6bcd in glob_vector (pat=0x810182c "v*",
dir=0xbfbfe8e0 "/var/db/pkg/", flags=0) at glob.c:491
#4 0x080b7275 in glob_filename (pathname=0x8101820 "/var/db/pkg/v*", flags=0)
at glob.c:768
#5 0x0807ff07 in shell_glob_filename (pathname=0x8101850 "/var/db/pkg/v*")
at pathexp.c:254
#6 0x0807d10d in expand_word_list_internal (list=0x80ef3c0, eflags=31)
at subst.c:6406
#7 0x08066d4b in execute_command_internal (command=0x0, asynchronous=0,
pipe_in=-1, pipe_out=-1, fds_to_close=0x81017f0) at execute_cmd.c:2554
#8 0x08068b35 in execute_command (command=0x80ef300) at execute_cmd.c:324
#9 0x0805bb19 in reader_loop () at eval.c:143
#10 0x0805aad1 in main (argc=1, argv=0xbfbfed40, env=0xbfbfed48) at shell.c:680
(gdb) up
#1 0x080ba348 in xmbsrtowcs (dest=0x1d, src=0xbfbfe804, len=0,
pstate=0xbfbfe760) at xmbsrtowcs.c:67
67 memcpy(mbsbuf, *src, n + 1);
(gdb) print mbsbuf
$1 = 0x80ef3c0 "cyrus-sasl-saslauthd-2.1.19"
(gdb) print src
$2 = (const char **) 0xbfbfe804
#6 0x0807d10d in expand_word_list_internal (list=0x80ef3c0, eflags=31)
at subst.c:6406
#7 0x08066d4b in execute_command_internal (command=0x0, asynchronous=0,
pipe_in=-1, pipe_out=-1, fds_to_close=0x81017f0) at execute_cmd.c:2554
#8 0x08068b35 in execute_command (command=0x80ef300) at execute_cmd.c:324
#9 0x0805bb19 in reader_loop () at eval.c:143
#10 0x0805aad1 in main (argc=1, argv=0xbfbfed40, env=0xbfbfed48) at shell.c:680
(gdb) up
#1 0x080ba348 in xmbsrtowcs (dest=0x1d, src=0xbfbfe804, len=0,
pstate=0xbfbfe760) at xmbsrtowcs.c:67
67 memcpy(mbsbuf, *src, n + 1);
(gdb) print mbsbuf
$1 = 0x80ef3c0 "cyrus-sasl-saslauthd-2.1.19"
(gdb) print src
$2 = (const char **) 0xbfbfe804
(gdb) print *src
$3 = 0x8104fe4 "cyrus-sasl-saslauthd-2.1.19"
(gdb) print n
$4 = 135286784
I finally migrate to bash3 (ports/shells/bash) and it seems
ceased/lessened.
SAITOU Toshihide
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