RE: Crash after server move

Below is the output from the core and the info you requested. I'm =
curious
how "h" could be such an odd ball number while inside a defined for =
loop?
=A0
- Valnir
=A0
Program terminated with signal 11, Segmentation fault.
#0=A0 0x080b373c in set_host (ch=3D0xb74f63bc, d=3D0xb74f5240) at =
comm.c:5793
5793=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 =
free_string(ch->usrdata->alt_hosts[h]);
(gdb) print ch->usrdata
$1 =3D (USER_DATA *) 0xb74f60b0
(gdb) print h
$2 =3D -1219534064
(gdb) print ch->usrdata->alt_hosts[h]
Cannot access memory at address 0x948ced3c
(gdb)=20
=A0

________________________________________
From: [email protected] on behalf of Ammaross Danan
Sent: Wed 3/28/2007 2:27 AM
To: [email protected]
Subject: Re: Crash after server move
Valnir wrote:
> We're getting ready to port our mud to a new server and we're having a =
bit
> of an issue. Everything compiles clean, but when we login we get past =
our
> account login and when we select what character to play the mud =
crashes.
>=A0
> Program terminated with signal 11, Segmentation fault.
> #0=A0 0x080b373c in set_host (ch=3D0xb74f63bc, d=3D0xb74f5240) at =
comm.c:5793
> 5793=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 =
free_string(ch->usrdata->alt_hosts[h]);
>=A0=A0
print ch->usrdata
print h
print ch->usrdata->alt_hosts[h]

These will give us the proper feedback on exactly what is causing the
crash. I'm willing to bet ch->usrdata is 0x0, or is 0x3 or some such
invalid mem address (caused by an overrun of some sort). If it is, you
may want to insert an alloc_mem in the new_char_data() and the
corresponding free_mem() in the free_char_data().
> (gdb) where
> #0=A0 0x080b373c in set_host (ch=3D0xb74f63bc, d=3D0xb74f5240) at =
comm.c:5793
> #1=A0 0x080a905c in nanny (d=3D0xb74f5240, argument=3D0xb74f5661 =
"Valnir") at
> comm.c:2560
> #2=A0 0x080a4a49 in game_loop_unix (control=3D4) at comm.c:885
> #3=A0 0x080a4424 in main (argc=3D2, argv=3D0xbf911974) at comm.c:490
> (gdb)
>=A0
> It's crashing while trying to update the listing of hosts that a =
players
has
> connected from.
>=A0
>=A0=A0=A0=A0 /* consolidate list and remove the current host from the =
list, if
needed
> */
>=A0=A0
might want to put this block inside a if ( ch->usrdata !=3D null ) check
>=A0=A0=A0=A0 for ( h =3D 0; h < MAX_HOSTS; h++ )
>=A0=A0=A0=A0 {
>=A0=A0=A0=A0=A0=A0=A0=A0 if ( !str_cmp( ch->usrdata->alt_hosts[h], =
d->host ) )
>=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 continue;
>=A0
>=A0=A0=A0=A0=A0=A0=A0=A0 if ( !IS_NULLSTR(ch->usrdata->alt_hosts[h]) )
>=A0=A0=A0=A0=A0=A0=A0=A0 {
>=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 hosts[i++] =3D =
str_dup(ch->usrdata->alt_hosts[h]);
>=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 =
free_string(ch->usrdata->alt_hosts[h]);
>=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 ch->usrdata->alt_hosts[h] =3D =
&str_empty[0];
>=A0=A0=A0=A0=A0=A0=A0=A0 }
>=A0=A0=A0=A0 }
> The new server is running GCC 4.1.1 and any help would be greatly
> appreciated. Thanks!
>=A0
> - Valnir
>=A0
>
>
>=A0=A0
Ammaross Danan
Realms of the Forgotten
www.rotf.net 4998
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