Server received crash signal

[ThyroDree 3]

Running on Linux Centos 7:

Hosted from BuyVM

Error: Server received crash signal! Attempting to save all online characters!

Anyone knows how to fix this? this error shows up every 1~2 hours the server is running

[4144 366]

for fix issue need first know what is isue.

You now showed stack or any info except crash.

run server under gdb and show call stack after it crashed.

 

[ThyroDree 3]

31 minutes ago, 4144 said:

for fix issue need first know what is isue.

You now showed stack or any info except crash.

run server under gdb and show call stack after it crashed.

 

How can i run the server under gdb? 

[Dastgir 1246]

47 minutes ago, ThyroDree said:

How can i run the server under gdb? 

gdb map-server
r

when it crashes,

type "bt full" and post the output here.

[ThyroDree 3]

21 hours ago, Dastgir said:

gdb map-server
r

when it crashes,

type "bt full" and post the output here.

Hello, I found the error after using bt full this came out

https://imgur.com/a/HCTDa6s

[Dastgir 1246]

Which revision are you using?

I don't see that line anywhere nearby, modded? probably sd is null.

[ThyroDree 3]

9 minutes ago, Dastgir said:

Which revision are you using?

I don't see that line anywhere nearby, modded? probably sd is null.

On the line 2131 on battle.c

                case SN_SHARPSHOOTING:
                case MA_SHARPSHOOTING:
                    skillratio += 100 + 50 * skill_lv;

                    if( sd->sc.data[SC_SOULLINK] && sd->sc.data[SC_SOULLINK]->val2 == SL_HUNTER)
                    skillratio *= 1.15;
                    break;

[Rebel 23]

2 hours ago, ThyroDree said:

On the line 2131 on battle.c

                case SN_SHARPSHOOTING:
                case MA_SHARPSHOOTING:
                    skillratio += 100 + 50 * skill_lv;

                    if( sd->sc.data[SC_SOULLINK] && sd->sc.data[SC_SOULLINK]->val2 == SL_HUNTER)
                    skillratio *= 1.15;
                    break;

case SN_SHARPSHOOTING:
case MA_SHARPSHOOTING:
    if (sd->sc.data[SC_SOULLINK] && sd->sc.data[SC_SOULLINK]->val2 == SL_HUNTER)
        skillratio *= 1.15;
   else
        skillratio += 100 + 50 * skill_lv;
        break;

[bWolfie 139]

You need to check 'sd' is not NULL first. so like

 if (sd != NULL && sd->sc.data[SC_SOULLINK] && sd->sc.data[SC_SOULLINK]->val2 == SL_HUNTER)

If you have edited other source code, you will need to check it for all sorts of stuff isn't using null pointer. E.g. sc != NULL, tsd != NULL, etc.

[Dastgir 1246]

Why not use sc(already defined and assigned in that function)? it would check with any other unit having status instead of just players.

if (sc != NULL && sc->data[SC_SOULLINK] != NULL && sc->data[SC_SOULLINK]->val2 == SL_HUNTER)