[4.0.1] Echo of Light bug - massive HPS

[Miles]

Hey lads,

Playing my holy priest on the ptr today, I found a crazy bug.

I grouped with another holy priest. We both went into PoH Chakra, and spammed the Holy Word: sanc on cooldown, and a PoH every now and then to keep the chakra up.

For some reason, the Echo of Light buff just kept stacking. I think its exponential, because it kept growing faster.

Here is the result.
yfrog.==com/f3wowscrnshot091810144701j (remove the == )

We also found another bug. If you keep spamming flash heal on some1, when u got the 2p t10 set bonus, the HoT refreshes itself aswell, we got a 34k hps hot this way

Deas

[Musra]

Damn, that was alot of healing. Everyone in the PTR will love you as a healer now XD
/Musra

[Feigr]

Working as intended!

727 million, that's almost as much a Holy Paladin heals for.

[Miles]

Take a look at the buff. its show like -2147milion. I think this is the highest number wow can handle, just like the goldcap.

[sp2danny]

Shhh, dont tell blizz. Lets hope this goes live :P

[Deleted]

Gratz, you have probably casted the biggest heal ever casted by a WoW character.

[Deleted]

Working as intended.



Next.

[Miles]

Gratz, you have probably casted the biggest heal ever casted by a WoW character.

What a pity it doesnt show up in the statistics > largest heal cast :P

[Deleted]

Hey lads,

Playing my holy priest on the ptr today, I found a crazy bug.

I grouped with another holy priest. We both went into PoH Chakra, and spammed the Holy Word: sanc on cooldown, and a PoH every now and then to keep the chakra up.

For some reason, the Echo of Light buff just kept stacking. I think its exponential, because it kept growing faster.

Here is the result.
yfrog.==com/f3wowscrnshot091810144701j (remove the == )

We also found another bug. If you keep spamming flash heal on some1, when u got the 2p t10 set bonus, the HoT refreshes itself aswell, we got a 34k hps hot this way

Deas

Nice bug idd^
Also...Deas+Miles on the same forum?^ seems like we got an talnivarr alliance folk here^^

[Miles]

Nice bug idd^
Also...Deas+Miles on the same forum?^ seems like we got an talnivarr alliance folk here^^

Haha yep, you're right And you are?

[Danner]

Still not outheаling pаlаdins on live, but we're getting there :P

[Deleted]

A fella that failed terribly and got kicked out by luke

[Myrsky]

Take a look at the buff. its show like -2147milion. I think this is the highest number wow can handle, just like the goldcap.

That's probably the limit in the debugging process, +-2,147,483,648.

[Miles]

Ah right, I see. 2^31 = 2147 mil idd

[Zantal]

damage and healing in wow isn't int, i think it's float. which means they can overflow anyway

[Danner]

For those wondering аbout the 2.1 billion number, thаt's the minimum signed integer vаlue.

Modern computers work on 32bit or 64bit numbers. The lаrgest number you cаn represent in а 32bit system is 2^32, or аround 4.2 billion. When you deаl with signed numbers, one of the bits аre used for the sign, leаving you with 3^31 bits for the аctuаl numbers. This is equivаlent of 2.1 billion.

In pаrticulаr, the -2.1 billion number signed is the sаme аs аll bits set. I suspect this being а progrаmmer error somewhere, using а "0xFFFFFFFF" vаlue to flаg something аs undefined, on а system where this didn't mаke much sense. Will be fixed in the next pаtch, I'm sure of it

[mööh]

32-bit integer caps
Fairly hilarious though. Make sure you report it with the in-game feedback tool though

Lets not.

[Vook]

Echo of Light was stacking indefinitely with Heal and Greater Heal when I first logged onto the PTR(Was getting it to tick for upwards of 5k on me), but the next day it was hotfixed. I guess they forgot to hotfix it for certain spells? :P

Also,

We also found another bug. If you keep spamming flash heal on some1, when u got the 2p t10 set bonus, the HoT refreshes itself aswell, we got a 34k hps hot this way

This is not a bug. the 2pc T10 is SUPPOSED to stack like that, it's done that ever since it was released.

[Miles]

Echo of Light was stacking indefinitely with Heal and Greater Heal when I first logged onto the PTR(Was getting it to tick for upwards of 5k on me), but the next day it was hotfixed. I guess they forgot to hotfix it for certain spells? :P

Also,



This is not a bug. the 2pc T10 is SUPPOSED to stack like that, it's done that ever since it was released.

Im not exactly sure what caused it to tick for 34k, it might not have been the 2p t10. But it was Echo of Light ticking for so high, not blessed healing.
It only seemed to skyrocket when I was with the other holy priest, when solo, i couldnt get it over 3k..

[Azyoulike]

damage and healing in wow isn't int, i think it's float. which means they can overflow anyway

Nope - it will be int, because health numbers are int. It will be float at some points in the calculation - it must be when coefficients are being applied, but by the time it's being reported it's an int.