[nos-bbs] JNOS 2.0e Segfaults on arm-linux, but only after some seconds

[Torsten Harenberg]

Dear list,

after some tweaking (uClibc problems with longjumps, got some help vom 
uClibc authors) and builing a new ncurses from scratch, I successfully 
compiled JNOS 2.0e (Linux source) on a Zaurus C-3200 (arm-linux).

However, after starting the binary end entering any meaningful command 
(I tried "help"), the binary got a SIGSEGV. Here the gdb output:


jnos> help
Program received signal SIGSEGV, Segmentation fault.
0x020051c0 in morecmd (argc=1, argv=0x1, p=0x20d4a08) at main.c:1518
1518            if((sp = newsession(argv[1],MORE,0)) == NULLSESSION){
(gdb) li
1513        int usesession = 0;
1514
1515        /* Use a session if this comes from console - WG7J*/
1516        if(Curproc->input == Command->input) {
1517            usesession = 1;
1518            if((sp = newsession(argv[1],MORE,0)) == NULLSESSION){
1519                return 1;
1520            }
1521            /* Put tty into raw mode so single-char responses will 
work */
1522            sp->ttystate.echo = sp->ttystate.edit = 0;
(gdb) bt
#0  0x020051c0 in morecmd (argc=1, argv=0x1, p=0x20d4a08) at main.c:1518
#1  0x4009fd50 in siglongjmp () from /lib/libc.so.6
#2  0x0200515c in morecmd (argc=34425352, argv=0x1, p=0x1) at main.c:1508
(gdb) print argc
$1 = 1
(gdb) print argv
$2 = (char **) 0x1
(gdb)


However, THIS ONLY HAPPENS AFTER A COUPLE OF SECONDS (approx. 5) after 
starting up. Typing earlier just gives the expected error message, that 
no help files are installed.


Hope anybody with a deeper knowledge of how JNOS is working inside may 
comment and give any hints.

73s

    Torsten DL1THM

-- 
<><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><>
<>                                                              <>
<> Torsten Harenberg         harenberg at physik.uni-wuppertal.de  <>
<> Bergische Universitaet                                       <>
<> FB C - Physik             Tel.: +49 (0)202 439-3521          <>
<> Gaussstr. 20              Fax : +49 (0)202 439-2811          <>
<> 42097 Wuppertal                                              <>
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