Server freeze and map_addblock question

[ragazel]

Hello everyone, I need a little help again  

 

lately my server did a random freeze (not crashing, so I cant get any dump), and its only happening when WoE is running.

 

I try to find what causing server freeze, but I only get these error:

 

 

However, server didnt freeze while this error appearing, but its happened in a random time after this error happening (yet the map server log didnt show any error beside this, not even crash)

 

While I think this is not a problem for server freeze, Im just curious what causing this error and maybe this is good to be a start point

 

I want to ask is my modification to source is safe for server or not (or maybe get a few improvement).

 

Here are my modification (warning ugly code, since I just know a little about programming)

 

map.c at map_addblock function

char* bltype = "";
switch(bl->type){
		case BL_NUL: bltype="NUL";
			break;
		case BL_PC: bltype="PC";
			break;
		case BL_MOB: bltype="MOB";
			break;
		case BL_PET: bltype="PET";
			break;
		case BL_HOM: bltype="HOM";
			break;
		case BL_MER: bltype="MER";
			break;
		case BL_ITEM: bltype="ITEM";
			break;
		case BL_SKILL: bltype="SKILL";
			break;
		case BL_NPC: bltype="NPC";
			break;
		case BL_CHAT: bltype="CHAT";
			break;
		case BL_ELEM: bltype="ELEM";
			break;
	}

and modified a bit for out of bound error function

if( x < 0 || x >= map[m].xs || y < 0 || y >= map[m].ys )
{
ShowError("map_addblock: out-of-bounds coordinates (\"%s\",%d,%d), map is %dx%d\n", map[m].name, x, y, map[m].xs, map[m].ys);
return 1;
}

to

if( x < 0 || x >= map[m].xs || y < 0 || y >= map[m].ys )
{
ShowError("map_addblock: out-of-bounds coordinates (\"%s\",%d,%d), map is %dx%d, type is %s\n", map[m].name, x, y, map[m].xs, map[m].ys, bltype);
return 1;
}

Of course I will happy if someone know why server did a random freeze,

but since I have no clue what causing the freeze beside this error, at least I want to start with what type causing the error.

 

thank you and sorry for bad english, hope what I mean is explained correctly and clear enough