XnView Software

After a while I have tried v1.6.4 x64 and the crashes have stopped. Since no HW/SW changes were made to the machine during that time period (not even Windows updates), the issue was apparently solved in code. Thanks!

I mentioned the moon JPG only to point out that the problem is not totally isolated to the video stack.

The fastest way to crash is still a folder full of vanilla TV MP4s. Previewing several files (for several seconds each) while thumbnails are being generated reliably kills the process. Since VLC ...

There is no exception dialog box at all - the application simply freezes for a second and the main window 'silently' disappears. The crash details from Event Viewer were already posted in this thread (exception code 0xc0000374, indicating heap corruption).

I looked deeper into the situation (with ...

BTW, with versions 1.4.0 & 1.3.1 it is hard to reproduce this regression - it takes a full minute of frantic clicking on video files (as fast as the hand allows) in order to trigger the freeze-and-crash combo.

Yes, the 12 MB JPG gets its preview almost instantly (upon scrolling to it in the viewport). I tried replicating the JPG crash, and it appears that at least one video must be played *prior* to clicking the moon JPG + small JPG for the crash to occur. Thus, it seems to still be somehow video-related.

Just now, I have managed to crash the application by 1) copying a 12MB composite moon image JPG into a folder with videos & images 2) opening the folder so that thumbnail generation can start, 3) clicking the 12MB JPG (resulting in 1.2 GB working set, no crash) and... 4) clicking a random small JPG ...

Yes. Once the thumbnail generation progress bar is no longer visible in the status bar, everything video-related works as expected (i.e. as in v0.98). Re-visiting the 'fully-generated' folder in the future also works w/o problems.

Details from the Event viewer:

Faulting application name: xnviewmp.exe, version: 1.4.5.0, time stamp: 0x645b6416
Faulting module name: ntdll.dll, version: 10.0.19041.610, time stamp: 0xe5d7ed5c
Exception code: 0xc0000374
Fault offset: 0x00000000000fed29
Faulting process id: 0x16f54
Faulting ...

XnView: MP 1.4.5 - 64 bit
OS: Windows 10 Pro 20H2 64bit
RAM: 64GB

After opening a large folder, thumbnail generation is started in a background thread. Clicking any non-trivial video in the browser (to be displayed in the preview window or in view mode) causes a hard crash after several seconds. It ...