02279: cubeqst: 0.127u4 chdman -fixavdata randomly fails

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
02279	Misc.	Major	Random	Sep 21, 2008, 02:35	Sep 22, 2008, 15:50

Tester	Pr3tty F1y	View Status	Public	Platform	MAME (Self-compiled)
Assigned To		Resolution	Unable to reproduce	OS	Windows XP/Vista 32-bit
Status [?]	Closed			Driver	misc/cubeqst.cpp
Version	0.127u4	Fixed in Version		Build	C2D
		Fixed in Git Commit		Github Pull Request #

Summary	02279: cubeqst: 0.127u4 chdman -fixavdata randomly fails
Description	Running chdman to fix the metadata for the cubeqst chd randomly fails at a random hunk number. I've had it fail at 26xx, 27xxx, and now 30xxxx. It seems to be random. I copied it from one hdd to another with no read issues reported in windows. I've had no hdd read issues with any other software and this is happening on both of my hard drives and failing at random places on both and I know they both aren't bad. I've killed off every service I have and it still does it.
Steps To Reproduce	Running" chdman -fixavadata cubeqst.chd"
Additional Information	chdman - MAME Compressed Hunks of Data (CHD) manager 0.127u4 (Sep 18 2008) Input file: D:\cubeqst.chd Error getting VBI metadata: can't find metadata VBI metadata incorrect size Error reading hunk 30377 from CHD file: decompression error
Github Commit

Flags
Regression Version
Affected Sets / Systems	cubeqst

Attached Files	chdman_0127u4.zip (181,577 bytes) Sep 21, 2008, 19:20

No.02512 Pr3tty F1y Tester Sep 21, 2008, 03:01	Verify is also acting wonky: D:\Emulators\MAME>chdman -verify D:\cubeqst.chd chdman - MAME Compressed Hunks of Data (CHD) manager 0.127u4 (Sep 18 2008) Input file: D:\cubeqst.chd Verifying hunk 412/108008... Error during verify: decompression error D:\Emulators\MAME>chdman -verify D:\cubeqst.chd chdman - MAME Compressed Hunks of Data (CHD) manager 0.127u4 (Sep 18 2008) Input file: D:\cubeqst.chd Verifying hunk 376/108008... Error during verify: decompression error D:\Emulators\MAME>chdman -verify D:\cubeqst.chd chdman - MAME Compressed Hunks of Data (CHD) manager 0.127u4 (Sep 18 2008) Input file: D:\cubeqst.chd Verifying hunk 404/108008... Error during verify: decompression error
No.02524 Fujix Administrator Sep 21, 2008, 19:18 edited on: Sep 21, 2008, 19:18	I successfully converted the CHD file here. I don't have the -verify error either. By seeing no other user reporting the same issue, it may be a local problem.
No.02525 Fujix Administrator Sep 21, 2008, 19:21	I uploaded my chdman of 0.127u4, could you try this?
No.02527 Pr3tty F1y Tester Sep 21, 2008, 20:50 edited on: Sep 21, 2008, 20:51	I actually recompiled a vanilla build (no C2D optimizations) and no more wonkiness. I was just able to convert and verify the chd with no random/intermittent failures. I'd have to say that this is only an optimization/compiler issue. I'm just going to place the blame on any future issues I have on the fact that my PC uses a Via chipset ;-)
No.02529 Tafoid Administrator Sep 22, 2008, 15:50	Closing this out since no one could duplicate. The record is here if something is discovered later and this can be reassigned.