bash/readline coredumps

From: Michiel Boland (michiel_at_boland.org)
Date: 11/30/04

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    Date: Tue, 30 Nov 2004 09:18:04 +0100
To: current@freebsd.org

    Hi.
    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

    echo '
    '

    Then bring up the last line with cursor-up or ^P and press enter.

    Some gdb output:

    (gdb) bt
    #0 rl_do_undo () at /usr/src/gnu/lib/libreadline/readline/../../../../contrib/libreadline/undo.c:124
    #1 0x280ee279 in rl_revert_line (count=1, key=0)
        at /usr/src/gnu/lib/libreadline/readline/../../../../contrib/libreadline/undo.c:239
    #2 0x28102e4d in readline_internal_teardown (eof=0)
        at /usr/src/gnu/lib/libreadline/readline/../../../../contrib/libreadline/readline.c:372
    #3 0x281039fc in readline (prompt=0x80c4180 "mboland@leefnet:~$ ")
        at /usr/src/gnu/lib/libreadline/readline/../../../../contrib/libreadline/readline.c:504
    #4 0x08058623 in yy_input_name ()
    #5 0x080c4180 in ?? ()
    #6 0x0807c5e8 in termination_unwind_protect ()
    #7 0x08059fa1 in yyerror ()
    #8 0x0805ae83 in yyerror ()
    #9 0x0805d529 in yyparse ()
    #10 0x08058133 in parse_command ()
    #11 0x080581dd in read_command ()
    #12 0x0805831c in reader_loop ()
    #13 0x08057441 in main ()
    (gdb) print rl_undo_list
    $2 = (UNDO_LIST *) 0x30313100

    This is -CURRENT from last Friday, but the problem has been around longer.

    Anyone any ideas?

    Cheers
    Michiel
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