Dragon 2.6.1 Timeout and Exception Error bug from users on Infinity Server

[Damir]

Here is the chat from Dragon users on Infinity

CumnorChessClub (To selected room) : I have tested dragon 2.6 and 2.6.1 using both types of exe in 2 online sites and 4 GUIs offline and dragon can run for several games without problems but eventually dragon does stop working and from then on error occurs all the time..

CumnorChessClub (To selected room) : on windows the exception errode code is one that that microsoft have yet to solve, it can happen at any time, no known fix..

CumnorChessClub (To selected room) : I have sent komodo log files and windows error info but only had reply from Martin, who said try other exe

CumnorChessClub (To selected room) : It is the engine thats causing the problem with windows.

CumnorChessClub (To selected room) : Faulting application name: dragon-2.6-64bit-avx2.exe, version: 0.0.0.0, time stamp: 0x61bea7df

KomodoXP (To selected room) : Mark and Larrry both use Linux on Chess.com to test they need to do some test with Windows

Wardog218 (To all) : i have already froze at least 7 times in the tourney already.

CumnorChessClub (To selected room) : you can trace it in windows error reporting, it will show error by Komodo

KomodoXP (To selected room) : I have froze one time today 2 days ago I froze many, many times.

CumnorChessClub (To selected room) : The exception code 0xc0000409 indicates a stack buffer overflow. Batch alignment problems usually occur when the return variable of a method does not match the return value of the parent method.

CumnorChessClub (To selected room) : This is easy to see when a method takes a long time to execute, but not so easy to observe when a method is

fast.

CumnorChessClub (To selected room) : So Komodo will have a hard time seeing if this is the cause

[Damir]

I have not had any probs with Dragon 2.5.1. In my opinion only stable version is 2.5.1. If Mark and Larry can compare 2.5.1 version to 2.6 and 2.6.1 and what they did different there, it may help them fix the problem.

[Damir]

There is a user Dovahkiin now on Infinity server that is using 1-2 cores with Dragon 2.6. So far he has not had any probs, but than again he is only using 1-2 cores. It looks like 16 cores and above version of Dragon 2.6 and 2.6.1 cause the engine to crash. So it is MP issue that causes the engine to crash. Somewhere the engine is broken, when running on +16 cores and above..

[Damir]

If I remember it correctly Komodo had this problem in the past also, when engine could not run stable on more than 16 cores..