04449: daioh: Access violations causing MAME to crash.

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
04449	Crash/Freeze	Critical (emulator)	Random	Aug 7, 2011, 17:57	Aug 14, 2011, 15:17

Tester	Samurai Fox	View Status	Public	Platform	MAME (Official Binary)
Assigned To		Resolution	Unable to reproduce	OS	Windows Vista/7 (64-bit)
Status [?]	Closed			Driver	seta/seta.cpp
Version	0.143	Fixed in Version		Build	Normal
		Fixed in Git Commit		Github Pull Request #

Summary	04449: daioh: Access violations causing MAME to crash.
Description	At random points, Daioh will crash MAME due to an access violation. This does not occur in every session. Due to the nature of this bug, it's difficult for me to say how it can be reproduced. I did manage to record a session with the crash, but doing so renders the INP file useless because it crashes MAME when it is used for playback. I will supply the INP file anyways, just in case it helps.
Steps To Reproduce
Additional Information
Github Commit

Flags
Regression Version
Affected Sets / Systems	daioh

Attached Files	daioh.inp (64 bytes) Aug 7, 2011, 17:59 Uploaded by Samurai Fox

No.07671 Fujix Administrator Aug 7, 2011, 19:09 edited on: Aug 7, 2011, 19:12	The current release is 0.143u2, and many things have been updated since 0.143. Please reconfirm your report with u2. Especially when the cause of the issue is unknown, it is important to exclude the possibilities as much as we can. The inp file fails to load here in u2, and MAME freezed at the initializing screen. It contains the header only, no valid inp data.
No.07672 B2K24 Senior Tester Aug 7, 2011, 19:56	I played daioh for over an hour using mame64 0.143u2 and could not reproduce this or any other problems.
No.07673 Fujix Administrator Aug 8, 2011, 04:24	Right, if nobody can reproduce it, nobody can confirm what is really bad, then nobody can fix it. This means virtually no bug for us. Samurai Fox, I think backtrace on the crash in u2 is needed for us to confirm your report.
No.07675 Fujix Administrator Aug 9, 2011, 03:13 edited on: Aug 9, 2011, 03:14	I tested the game some times and experienced a game freeze one time at the scene of the screenshot I uploaded. MAME was still working and the game could be reset normally, but it was not an access violation. Does anyone else have a problem? 64-bit, 0.143u2 on windows 7
No.07676 Samurai Fox Tester Aug 9, 2011, 05:04 edited on: Aug 9, 2011, 05:05	Sorry for the late reply. I will test with the latest official version of MAME as soon as I can and see if I can reproduce this. Just to be clear, I used the latest officially compiled version of MAME from the MAMEdev website when I submitted this report. I'll let you guys know if I come across anything in u2.
No.07677 Tafoid Administrator Aug 9, 2011, 14:52	The only thing I can think of that 'might' cause any type of crashing/access violation is use of -HLSL. I've had crashes before for some games that were unexplained but only came about while using -HLSL in some fashion.
No.07681 Fujix Administrator Aug 10, 2011, 14:00	I managed to record an inp file, it freezes in the 3rd stage. Confirmed the freeze also in the inp playback.
No.07689 Fujix Administrator Aug 13, 2011, 11:35 edited on: Aug 13, 2011, 11:37	I moved the freeze problem to 04449. This thread is only for the crash with Access Violation now.
No.07690 Fujix Administrator Aug 14, 2011, 15:17	This report is closed until you confirm the crash with a backtrace.