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Random Crashes on SWRFUSS

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Posted by Jason   (109 posts)  [Biography] bio
Date Mon 18 Jun 2012 02:08 AM (UTC)
Message
ok here is what I got... and I don't get why it is crashing... The code is the same as it was on my non fuss code.

My game is crashing at this line of code


   if( fPrompt && !mud_down && d->connected == CON_PLAYING )
   {
      ch = d->original ? d->original : d->character;
[bold]      if( IS_SET( ch->act, PLR_BLANK ) )  THIS LINE HERE CRASHES[/bold]
         write_to_buffer( d, "\r\n", 2 );

      if( IS_SET( ch->act, PLR_PROMPT ) )
         display_prompt( d );
      if( IS_SET( ch->act, PLR_TELNET_GA ) )
         write_to_buffer( d, (const char *)go_ahead_str, 0 );
   }

This is the same as the non-fuss version. it seems to crash upon characters dying... or disconnecting abruptly. not really sure why.

Here is what the core file reads

(gdb) bt
#0  0x080d3ec8 in flush_buffer (d=0x9b42580, fPrompt=true) at comm.c:1186
#1  0x080d2a33 in game_loop () at comm.c:611
#2  0x080d1d15 in main (argc=5, argv=0xbfffe464) at comm.c:252
Current language:  auto; currently c++
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Posted by Fiendish   USA  (1,641 posts)  [Biography] bio   Global Moderator
Date Reply #1 on Mon 18 Jun 2012 02:46 AM (UTC)
Message
what is d->character right before the crash?

https://github.com/fiendish/aardwolfclientpackage
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Posted by Jason   (109 posts)  [Biography] bio
Date Reply #2 on Mon 18 Jun 2012 03:31 AM (UTC)
Message
0x0
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Posted by Worstje   Netherlands  (899 posts)  [Biography] bio
Date Reply #3 on Mon 18 Jun 2012 12:01 PM (UTC)
Message
Well then, that is your problem. You can't dereference null. Maybe your problem is somewhere else and it shows here, or this snippet makes wrong assumptions and that causes the crash.
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Posted by Jason   (109 posts)  [Biography] bio
Date Reply #4 on Mon 18 Jun 2012 10:41 PM (UTC)
Message
Where might i even go about looking for this issue....Maybe the Account snippet I put in?
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Posted by Fiendish   USA  (1,641 posts)  [Biography] bio   Global Moderator
Date Reply #5 on Sat 30 Jun 2012 06:02 PM (UTC)

Amended on Sat 30 Jun 2012 06:04 PM (UTC) by Fiendish

Message
Maybe. We can't help you with that because we don't know what you're doing. This may be a good time to learn about general debugging techniques.

http://www.drpaulcarter.com/cs/debug.php#4.
http://cs.baylor.edu/~donahoo/tools/gdb/tutorial.html

https://github.com/fiendish/aardwolfclientpackage
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Posted by Nick Gammon   Australia  (21,322 posts)  [Biography] bio   Forum Administrator
Date Reply #6 on Sat 30 Jun 2012 11:11 PM (UTC)
Message
http://www.gammon.com.au/gdb

- Nick Gammon

www.gammon.com.au, www.mushclient.com
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