0014281: UI: MMW Crashes while using Tree nodes

ID	Project	Category	View Status	Date Submitted	Last Update

0014281	MMW v4	Main Panel/Toolbars/Menus	public	2017-06-23 02:10	2017-10-02 15:32

Reporter	peke	Assigned To
Priority	immediate	Severity	major	Reproducibility	always
Status	feedback	Resolution	open
Target Version	4.1.19

Summary	0014281: UI: MMW Crashes while using Tree nodes
Description	This is long standing issue where GDI32.DLL crashes while using MMW and navigating three nodes. Commonly triggered by drag and drop files directly from explorer to Entire Library tree node (Note: I could not replicate on my system but this error is only reported with laptop users having Hybrid Dual GPU system, a combination of Integrated GPU and secondary Dedicated GPU with hardware acceleration that is switched on demand). While in remote session with user we fetched Crash Logs and debug logs and resulting Screenshot where it is clearly shown that Tree view crashed. Log files are supplied in a ticket. Note: I've checked and updated all GPU drivers without success of resolving teh problem even newer drivers behaved more stable and error was triggered less times.
Additional Information	GNY-799-56927 http://www.mediamonkey.com/forum/viewtopic.php?f=7&t=87703#p435856
Tags	No tags attached.
Attached Files	GNY-799-56927 Remote session crash.jpg (246,469 bytes) GNY-799-56927 Remote session crash.jpg (246,469 bytes)

Fixed in build

Ludek 2017-06-26 12:59 developer ~0048263	Based on the MMWCrash1837.txt it crashes in GDI32.dll \| ScriptIsComplex called from TSeSkinObject.GetBoundsRect We would need to add some debug messages to TSeSkinObject.GetBoundsRect to find which skin object it is and whether the values Rect(FLeft, FTop, FLeft + FWidth, FTop + FHeight) where not somehow out of bounds causing the crash?

Ludek 2017-06-26 13:11 developer ~0048264 Last edited: 2017-06-26 13:14	I've created special debug MediaMonkey.exe : https://www.dropbox.com/s/yk0mfqdqij938md/MediaMonkey.exe?dl=0 Replace the EXE over the MM.exe from 4.1.17 and you will see a lot of debug messages like [1488] TSeSkinObject.GetBoundsRect: MainTreeBackground, L:0,T:0,W:233,H:17 Asking the user to reproduce the crash with DbgView running and get the log.

Ludek 2017-07-04 09:08 developer ~0048326	Based on the supplied logs the values in TSeSkinObject.GetBoundsRect aren't unexpected so it is still unclear why there is AV in GDI32.dll. Asking more info via ticket...

Ludek 2017-07-06 10:56 developer ~0048346 Last edited: 2017-07-06 10:57	User indicated that the error appears with skinless version too: GNY-799-56927 He also indicated (on the forum) that it is somehow indirectly caused by file monitoring, disabling file monitor is the workaround for him: http://www.mediamonkey.com/forum/viewtopic.php?f=7&t=87703#p435856 Any ideas Petr?