C++ SIGSEGV at Tile::hasProperty(ITEMPROPERTY)

[pasiak12]

I am using the OTX3 version

I am having strange sigsegv crash at random time and players can't really tell what is causing the crash.

Theres the gdb log:
[GDB] (gdb) bt full #0 0x0000000000795074 in Tile::hasProperty(ITEMPROPERTY) const - Pastebin.com

Seems like it is crashing while using some area combat spell at the hasPropety Tile function.

bool Tile::hasProperty(ITEMPROPERTY prop) const
{
    if (ground && ground->hasProperty(prop)) {
        return true;
    }

    if (const TileItemVector* items = getItemList()) {
        for (const Item* item : *items) {
            if (item)// I've put this just in case, but didnt help
                if (item->hasProperty(prop)) {
                    return true;
                }
        }
    }
    return false;
}

Has anyone met this problem before?

Thanks in advance

 

[Mkalo]

You should compile it as Debug.

 

[pasiak12]

You should compile it as Debug.

It would give me more informations in gdb log right?

 

[pasiak12]

I got the locals on gdb log

[GDB] (gdb) bt full #0 0x0000000000795074 in Tile::hasProperty (this=0xb18318 <g_g - Pastebin.com

It doesn't help me much, it's weird, the coordinates aren't corret there, or should I read in some specific way?

        x = 851883999
        y = 32588
        rows = 5645232
        tile = 0x0
        area = 0x7f4c32c6b7df
        centerY = 32588
        centerX = 851884240
        tmpPos = {x = 47071, y = 12998, z = 76 'L'}
        cols = 0

My X and Y pos ends at about 2000 (map is small)

 

[Damc]

The tile is null(this==nullptr) so all the other variables that gdb printed are meaningless (they don't exist). The crash is caused, because an AoE combat object has been executed near the map border (in a place where there is no tile) which causes the crash on this otxserver/combat.cpp at otxserv3 · mattyx14/otxserver · GitHub line.

 

[pasiak12]

The tile is null(this==nullptr) so all the other variables that gdb printed are meaningless (they don't exist). The crash is caused, because an AoE combat object has been executed near the map border (in a place where there is no tile) which causes the crash on this otxserver/combat.cpp at otxserv3 · mattyx14/otxserver · GitHub line.

Thank you for help!

I will try to fix this with

    if(!tile)
        return;

p.s.
Can you tell me where you read that tile was NULL in that gdb log?

 

[Damc]

tile = 0x0