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Old 1st September 2018, 16:13   #61  |  Link
Mosu
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How much memory is mkvmerge.exe (not mkvtoolnix-gui.exe) consuming in that case? Note that mkvmerge's memory will jump right when it starts, and it will continue to grow slowly due to in-memory indexes getting bigger (those indexes can only be written all at once when the file's done).

Can you watch your I/O load, too? Is mkvtoolnix-gui.exe causing a lot of I/O activity while the system is sluggish? You can use Windows' "Resource Monitor" tool for that.
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Old 1st September 2018, 16:38   #62  |  Link
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The crash occurs directly in the GUI, for me it happens when I drag and drop a source file in the panel. I've not had a crash while a mux operation has been in progress. I watched a 10 GB mux progress and mkvmerge took around 50-70 MB most of the time, peak working set was about 100 MB. I'll try to see how many muxes it will take for the crash to happen as the sluggishness already appears after the first two or three.

Mkvtoolnix-gui.exe has no activity outside normal usage in Resource Monitor, it seems to be behaving well.
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Old 1st September 2018, 16:46   #63  |  Link
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Can you reproduce the crash with the same file? If not, try removing the "cache" folder between tries.
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Old 1st September 2018, 16:47   #64  |  Link
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When you drag & drop & the GUI crashes, is a job still running at that point?
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Old 1st September 2018, 17:09   #65  |  Link
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Quote:
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Can you reproduce the crash with the same file? If not, try removing the "cache" folder between tries.
I'll try.. I probably need to run a mux operation instead of just goofing around with the GUI if this is memory related.

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When you drag & drop & the GUI crashes, is a job still running at that point?
No, I always wait for the mux job to finish before I start preparing a new one. This is basically because I usually get one part from a DVD and all the rest from an HDD.
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Old 1st September 2018, 17:28   #66  |  Link
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BTW, here is a build with debug symbols. Don't know how much use those might be to you — I compile on Linux with the mingw cross-compiler. I don't know if its type of debugging info is usable on Windows.
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Old 1st September 2018, 17:32   #67  |  Link
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I was able to reproduce it with the same file(s). I already had finished four different muxes and then did the same mux job four times just like each of them was a new one. After those, I added the same source files normally and added the job into the queue. Removed all source files to readd them once again and the GUI vanished. I could tell that I'm close to success (sic) because the HDD started making swapping like noise.

I'll install the debug build, let's see if we can find something there. It seems to be 32-bit but probably no difference in that sense compared to the 64-bit build that I use (the x86 path is due to an ancient installation).
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Old 1st September 2018, 17:40   #68  |  Link
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Well yeah, I figured from your x86 path that you were using a 32-bit build, hence…
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Old 1st September 2018, 17:46   #69  |  Link
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Well, it crashed after adding the same files over and over again and adding the job in the queue Where can I get the dump file? I couldn't find it in the program directory.
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Old 1st September 2018, 18:22   #70  |  Link
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No idea, I don't program under Windows.

But I do have an idea where this might come from. I'll try to rewrite the corresponding code section later tonight.
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Old 2nd September 2018, 07:24   #71  |  Link
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Hello Mosu,

There is something strange with v26 of MKVToolNix GUI:
- Start MKVToolNix GUI
- Drag & drop a file
- Perform a mux (not mandatory to perform something)
- Right click in the "Source Files" and choose "Remove All Files"
- Close MKVToolNix
- The following message appears :
"The file "< No destination file >" has been modified. Do you really want to close ? All changes will be lost"

I don't remember I had this message in v25, and, as all files in the source list have been removed, I think this message should not appear
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Old 2nd September 2018, 09:49   #72  |  Link
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The settings consist not only of the stuff on the "input" tab, but also of all the controls on the "output" and "attachments" tab. If their settings deviate from the last saved state (or the "new settings" state if it has never been saved or added to the job queue), then the GUI will ask for confirmation.
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Old 2nd September 2018, 11:15   #73  |  Link
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Quote:
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Well, it crashed after adding the same files over and over again and adding the job in the queue
I've created a new debug build, this time not with debugging symbols, but with a lot of validity checks on the internal structures containing job information. If an inconsistency is found, an error message is shown. Please give this build a try, and if such a message pops up, please provide the error it shows (you can select & copy the message shown in that dialog, BTW).

BTW: I highly appreciate your work on this. As I cannot reproduce the crashes (yet), I have to rely on other people's work.
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Old 2nd September 2018, 12:20   #74  |  Link
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Quote:
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Where can I get the dump file? I couldn't find it in the program directory.
It's in C:\Users\<Account_Name>\AppData\Local\CrashDumps. But can one even analyze them with the GNU tools?

PS: Have you already tried to find out when exactly the problems started to arise by using these builds? I can't reproduce the crashes and therefore can't do it.
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Old 2nd September 2018, 13:02   #75  |  Link
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Quote:
Originally Posted by Mosu View Post
I've created a new debug build, this time not with debugging symbols, but with a lot of validity checks on the internal structures containing job information. If an inconsistency is found, an error message is shown. Please give this build a try, and if such a message pops up, please provide the error it shows (you can select & copy the message shown in that dialog, BTW).

BTW: I highly appreciate your work on this. As I cannot reproduce the crashes (yet), I have to rely on other people's work.
No problems regarding testing This was a random accident that I happened to start working so heavily on video clips, I usually mux a couple of files at a time. In my daily work, I often need to rely on information from others to reproduce problems so I know how frustrating it can sometimes be to try things.

Now I got the crash with the mux job running. No error messages whatsoever, the OS just turned very sluggish while I was browsing the internet and I knew that it would not take long for something to happen.

I uploaded two most recent dumps if they are of any use. The older one is from yesterday's debug build, the other one is the crash I just had.

https://drive.google.com/open?id=17K...YBocphfn5LKlJ3

mkver, thanks, I think I'll start digging a bit deeper with those builds.
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Old 2nd September 2018, 14:00   #76  |  Link
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OK, so the problem is completely unrelated to that particular part of the program. It was one of the few areas of the GUI that I actually changed between v25 and v26. So we'll have to look at other changes.

There's one particular change between 25 and 26 that affects job/config handling. I've reverted that change and created a new debug build without said change.
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Old 2nd September 2018, 14:16   #77  |  Link
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BTW, the crash dumps don't help me — yet. I'm currently learning a lot about different debug info formats, how to do postmortem and/or just-in-time crash debugs for mingw applications etc. I'll look at bit further into those methods before providing new binaries to test with.

In case anyone is interested: "MinGW and Postmortem Debugging", "Dr. MinGW — Postmortem debugging tools for MinGW"
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Old 2nd September 2018, 17:22   #78  |  Link
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Alright, here is another debug build. This one links against the Dr. MinGW library. When it crashes, it should write a file called "mkvtoolnix-gui.RPT" in the same file the exe is is (hence me only providing the portable archive — writing to "C:\Program Files…" is normally not possible). This file should contain a stack trace. Please send me that file/upload it somewhere. Thanks.
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Old 2nd September 2018, 17:49   #79  |  Link
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Quote:
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Alright, here is another debug build. This one links against the Dr. MinGW library. When it crashes, it should write a file called "mkvtoolnix-gui.RPT" in the same file the exe is is (hence me only providing the portable archive — writing to "C:\Program Files…" is normally not possible). This file should contain a stack trace. Please send me that file/upload it somewhere. Thanks.
OK, will do Let's hope I can reproduce the crash rather sooner than later.
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Old 2nd September 2018, 18:26   #80  |  Link
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I was able to reproduce the crash by torturing the GUI but no RPT file appeared in the program folder I'll install rev 014 and see how it goes..
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