[11081] in Athena Bugs
decmips 7.6G: discuss
daemon@ATHENA.MIT.EDU (mhpower@MIT.EDU)
Mon Sep 27 15:25:26 1993
From: mhpower@MIT.EDU
To: bugs@MIT.EDU
Date: Mon, 27 Sep 93 15:25:19 EDT
System name: hodge
Type and version: KN01 7.6G (1 update(s) to same version)
Display type: PMAX-MFB
What were you trying to do?
List some old discuss transactions, or perhaps print them, or
maybe even exit from discuss completely. OK, call me indecisive :-)
What's wrong:
It dumped core, apparently in the call free (info->signature).
The problem is generally reproducible, although the timing of the
control-C's seems to matter somewhat in determining what happens.
% cp /mit/release/7.6/build/@sys/athena/athena.bin/discuss/client/discuss .
% ./discuss usenet
...
[24036] (59) 04/16/93 09:22 Jean Marie Diaz output of mkpalias
[24037] (98) 04/16/93 09:29 Mail Deliver... Returned mail: User unknown
[24038] (98) 04/16/93 09:29 Mail Deliver... Returned mail: User unknown
[24039] (98) 04/16/93 09:29 Mail Deliver... Returned mail: User unknown
^Cdiscuss (list): Interrupted system call Can't read transaction info
discuss: ls 24000:99999
discuss (list): Premature end of block Can't get meeting info
discuss: ls 24000:99999
^C^Cdiscuss (list): RPC protocol error Can't read transaction info
discuss (list): No transactions selected
discuss: \\
discuss: Unknown request "\\". Type "?" for a request list.
discuss:
discuss: ls 24000:99999
[24000]* (5) 04/14/93 04:27 News system No subject found in mail header
[24001] (5) 04/14/93 07:49 News system No subject found in mail header
[24002] (18) 04/14/93 08:29 News system No subject found in mail header
[24003] (5) 04/14/93 11:01 News system No subject found in mail header
[24004] (17) 04/14/93 11:24 Tom@jomega.e... news feed wanted, northwest flo...
[24005] (5) 04/14/93 11:51 News system No subject found in mail header
[24006] (32) 04/14/93 14:07 Jonathan I. ... inn-gurus?
[24007] (145) 04/15/93 01:55 News system Daily Usenet report from Enter...
[24008] (5) 04/15/93 02:04 News system No subject found in mail header
[24009] (60) 04/15/93 04:51 News system Daily Usenet report from Senato...
[24010] (14) 04/15/93 08:27 News system No subject found in mail header
[24011] (11) 04/15/93 08:30 Superutilisa... No subject found in mail header
[24012] (5) 04/15/93 08:51 News system No subject found in mail header
^Cdiscuss (list): Interrupted system call Can't read transaction info
discuss: p 24012
discuss (print): Premature end of block Can't get meeting info
discuss: p 24000
^CError printing transaction: RPC protocol error
Segmentation violation (core dumped)
% dbx ./discuss core
dbx version 2.10.1
Type 'help' for help.
Corefile produced from file "discuss"
Child died at pc 0x418a40 of signal : Segmentation fault
reading symbolic information ...
[using memory image in core]
(dbx) where
> 0 free(0x7fffaa64, 0x1, 0x100028f0, 0x5dc0, 0x402ae4) ["../malloc.c":691, 0x418a3c]
1 dsc_destroy_trn_info3(0x5dc0, 0x1002b000, 0x7fffaa64, 0x1002b000, 0x10019100) ["interface.c":409, 0x40b8ec]
2 sl_map(0x7fffb512, 0x0, 0x7fffaa9c, 0x10002758, 0x100026fc) ["trn_select.c":187, 0x402ae0]
3 prt_trans(0x4152b8, 0x1, 0x33, 0x10020040, 0x7fffaab0) ["print.c":171, 0x403744]
4 check_request_table(0x2, 0x10020040, 0x1, 0x7fffab88, 0x7fffb510) ["execute_cmd.c":94, 0x414634]
5 really_execute_command(0x0, 0x7fffab28, 0x7fffb510, 0x7fffb517, 0x414b98) ["execute_cmd.c":134, 0x4146fc]
6 ss_execute_line(0x0, 0x10008f68, 0x7fffb510, 0x70e003c, 0x4854494c) ["execute_cmd.c":219, 0x4148d0]
7 ss_listen(0x1000cb9c, 0x7fffba24, 0x0, 0x7fffb994, 0x0) ["listen.c":151, 0x414b94]
8 discuss.main(0x0, 0x0, 0x0, 0x0, 0x0) ["discuss.c":206, 0x400784]
(dbx)
What should have happened:
It shouldn't have dumped core.
Please describe any relevant documentation references:
discuss(SIPB)
