Help us solve the desyncs

Lately there has been a desync problem related to corrupted path cache (you'll note that players desync immediately when the game starts).

The bad news is that we still don't know how it happens.
The good news is that you can help us solve this by reporting desyncs in the following fashion (windows instructions, linux users can get assistance from players in the lobby):

If you find yourself in a desynced game please do the following:
1) Exit the game (can be during the game or after it)
2) Get your infolog.txt (Settings->Game Diagnostic Log in ZKL) copy its content and paste it in http://paste.springfiles.com/
3) In the settings tab there's also "Open game data folder" go there and enter the folder "cache\100rel-\paths".
4) In that folder you will have many files, at least two of them having the name of the map you have just played followed by a number (e.g. "Fields_Of_Isis337485254.pe.zip")
5) Upload all the files with the map's name (there can be more than 2, please verify you didn't miss one).
6) Make a post here with a link to the infolog (see (2)) and to the path files (see (5)).

It is crucial that from a desynced game I get at least 2 reports - one from someone who desynced, and one from someone who hasn't. If you're not sure, get everyone to report.


We can do this! :)

Thanks,
hoko.

Was about to post the same [I]burp :P
No idea if it is same desync as the pathcache one, but that map was desyncing in Spring 91.0, and our recent game on it proved it still does in 100.0.

Also [I]burp since you're on linux, can you send me your path cache of the map?

Thanks!

quote: Wait, you certainly would not have asked if you were on linux yourself:

It's great to work with smart people! :D
(although I do have curl, because mingw32)

EDIT: They're identical to my local path cache, so unfortunately that'a different issue.

Link
http://paste.springfiles.com/view/c0e7ce33

http://s000.tinyupload.com/index.php?file_id=75447211367474099276
http://s000.tinyupload.com/index.php?file_id=03790351207541378264

Since every client is simulating the game indpendently, there are two situations:
1) The game is synced - everyone share the same state.
2) The game is desynced - not everyone share the same state.

There is no correct state and wrong state (how would I know which is which).
The error message is based on the order in which checksum packets reach the host (that's why the error changed in the example you quoted).

When I used "one from someone who desynced, and one from someone who hasn't" in the post, I meant: "one from someone who appeared in the errors and one from someone who hasn't"

quote: Since every client is simulating the game indpendently, there are two situations: 1) The game is synced - everyone share the same state. 2) The game is desynced - not everyone share the same state. There is no correct state and wrong state (how would I know which is which). The error message is based on the order in which checksum packets reach the host (that's why the error changed in the example you quoted).

I knew all that, except about the order of packets.

Let me rephrase the questions:
Are checksums compared in player-player pairs?
And host doesn't try to find which gamestate is shared by most clients? (which we later could call the "most correct" one)
So when comparing checksums it only uses info about these two clients, and ignores data from others?

When checksums differ between these two at least one of them differs from the rest. Then sync error message only prints name of one randomly chosen player from the pair (based on packet order which can be considered random), right?

So the final question:
When we get sync error message containing player name, do we know his state differs from (most of) the rest, or it is entirely possible it just differs from 1 other player, who in fact is the one which differs from the rest?

http://paste.springfiles.com/view/119d2164
http://rghost.net/6K876dKsX
http://rghost.net/7pCTzFF9N

Got desync on Ravaged, Here is the replay-file:
https://dl.dropboxusercontent.com/u/56814843/20150909_222954_Ravaged_v2_100.sdf

same ravaged game:
infolog.txt
http://paste.springfiles.com/view/1677e4f6
infolog_.txt
http://paste.springfiles.com/view/c4e357b3
pathcache:
https://www.dropbox.com/s/qok64sixq3pumr4/Ravaged_v24285285679.pe.zip?dl=0
https://www.dropbox.com/s/tvwpyitwhttf42l/Ravaged_v24285285703.pe2.zip?dl=0