Hey guys.. you all have been really helpful in the past when it comes to
stuff, so here's a good one fore you.
Had my mud crash/reboot last night for an unknown reason. It created a core,
so I GDB'd it.
Loaded symbols for /lib/libresolv.so.2
#0 0x486f8e53 in strlen () from /lib/libc.so.6
(gdb) where
#0 0x486f8e53 in strlen () from /lib/libc.so.6
#1 0x486c9435 in vfprintf () from /lib/libc.so.6
#2 0x486e46bc in vsprintf () from /lib/libc.so.6
#3 0x486d176d in sprintf () from /lib/libc.so.6
#4 0x0807127e in do_mstat (ch=0x4956017c, argument=0x487afd24 "8,\023") at
act_wiz.c:2143
#5 0x080a3ce1 in do_function (ch=0x4956017c, do_fun=0x8070dbc <do_mstat>,
argument=0xbfe3e835 "gorilla")
at interp.c:885
#6 0x0806fcba in do_stat (ch=0x4956017c, argument=0xbfe3e835 "gorilla") at
act_wiz.c:1501
#7 0x080a3c73 in interpret (ch=0x4956017c, argument=0xbfe3e835 "gorilla")
at interp.c:856
#8 0x0807f3f9 in substitute_alias (d=0x496dd2a4, argument=0x496dd6c1 "stat
gorilla") at alias.c:98
#9 0x08080a73 in game_loop_unix (control=4) at comm.c:868
#10 0x08080640 in main (argc=4, argv=0xbfe3fa94) at comm.c:477
#11 0x48692d06 in __libc_start_main () from /lib/libc.so.6
ok.. you notice how the argument stays "gorilla" right up to the last
function where it changes to "8,\203". Now I don't know everything about GDB
or about programming, but that looks like the memory address got overwritten
somehow. I have NO IDEA how to run GBD against a running process and how to
step into it, so help there would be good. Also, this is the first time I've
seen this particular error occur, so replicating it (especially if it is a
memory corruption) won't be easy, if at all possible.
Lastly, does anyone know of a way to find memory leaks? Our mud monitors
it's own memory usage and does a hot reboot (hotboot) when it reaches around
20 MB of ram used. While this helps keep it under control, I don't see a
reason why it should ever creep up that high in the first place. Objs load
and unload, mobs, players, etc... I understand that all uses memory, but I
think more perms are being allocated than are being released, or something,
so any suggestions would be great.
Thanks again for everyone's input!
- Valnir
Legend of the Nobles
http://www.legendofthenobles.com
telnet://play.legendofthenobles.com:5400
