Bug 348508 - Typing into "Enter Tag Here" crashes digikam 100% of the time
Summary: Typing into "Enter Tag Here" crashes digikam 100% of the time
Status: RESOLVED WORKSFORME
Alias: None
Product: digikam
Classification: Applications
Component: Tags-Engine (show other bugs)
Version: 4.10.0
Platform: Microsoft Windows Microsoft Windows
: NOR crash
Target Milestone: ---
Assignee: Digikam Developers
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2015-05-31 16:16 UTC by Claudius
Modified: 2015-06-26 14:11 UTC (History)
2 users (show)

See Also:
Latest Commit:
Version Fixed In: 4.12.0


Attachments

Note You need to log in before you can comment on or make changes to this bug.
Description Claudius 2015-05-31 16:16:17 UTC
Headline says it all. If i type into the box labeled "Enter tag here." in the Captions/Tags flyout, my digikam will immediately crash.

I have confirmed that it's not my database, i created an empty database and imported just a few images.

Reproducible: Always

Steps to Reproduce:
1. Start Digikam
2. Select an image from the thumbnails view
3. Head over to the "Captions / Tags" flyout either by mouse, or by pressing <kbd>T</kbd> (it does not matter)
4. Start typing anything

Actual Results:  
The app crashes, as soon as you type the first letter.

Expected Results:  
The app should not crash.
Comment 1 caulier.gilles 2015-05-31 17:26:56 UTC
We need a trace to hack using debugview.exe. See details on this page :

https://www.digikam.org/contrib

Gilles Caulier
Comment 2 Claudius 2015-05-31 17:45:36 UTC
The page says (paraphrased) "you need to run a debug version" - there is no such version for windows. There are also no build instructions so I could build my own digikam with debug symbols. (ticket https://bugs.kde.org/show_bug.cgi?id=342481 pending).
Comment 3 caulier.gilles 2015-05-31 18:52:27 UTC
You need to run debugview.exe to show debug traces printed on the console (not visible by default). It's not debug symbols, it's debug strings printed at run time...
Comment 4 Claudius 2015-05-31 21:14:42 UTC
debugview does produce output like this from DigiKam around 100 lines at startup, the last of them like this:

> 00000078	23:04:05	[5848] digikam(5848)/digikam (core) class Digikam::ThumbnailImage __thiscall Digikam::ThumbnailCreator::createThumbnail(const class Digikam::ThumbnailInfo &,const class QRect &) const: Cannot create thumbnail for  "C:/Users/name/dir/Android Camera/2008/MOV00003.3GP" 	
> 00000079	23:04:05	[5848] digikam(5848)/digikam (core) class QImage __thiscall Digikam::ThumbnailCreator::load(const class Digikam::ThumbnailIdentifier &,const class QRect &,bool) const: Thumbnail is null for  "C:/Users/name/dir/Android Camera/2008/MOV00003.3GP" 	

But it does nothing at the point where the program freezes. No Stacktrace, nothing. The Program just grays out[1] and a message appears if i want to wait or close the program. I can wait for an hour and this does not resolve itself. I can close the program, but i don't get anything like a stack trace out of it.

[1]: looks like this http://imgur.com/31IPaql
Comment 5 Claudius 2015-05-31 21:32:09 UTC
i managed to get Visual Studio connected to my digikam process. It's not particularly helpful, though. When the application is grayed out, and i pause it in VS, the stack is full of QtGui and QtCore, but it does not run deep enough to find out where it goes.

http://imgur.com/pE7p5J3

Also, when digikam goes into that state, it grabs one cpu core for itself.
Comment 6 Claudius 2015-06-02 19:36:41 UTC
any other hint, how i could help debug this?
Comment 7 Claudius 2015-06-05 18:17:38 UTC
sorry for bumping this, but i have no idea how else to proceed. *bump*
Comment 8 caulier.gilles 2015-06-05 18:46:20 UTC
Did you write metadata to image ? Check Setup/metadata config panel...

Gilles Caulier
Comment 9 Claudius 2015-06-05 19:23:25 UTC
Yes i do (my metadata settings screen: http://imgur.com/soTxWQv )

I wonder if this is the issue, though. At that point in time, there's not yet anything selected to write to the file. I'm not yet confirming any tag. This really happens in the instant i start typing - where i wouldn't even have completed a tag to insert into the file.
Comment 10 caulier.gilles 2015-06-05 19:25:42 UTC
On text field, show popup menu with right mouse button and disable check spelling.

Gilles Caulier
Comment 11 Claudius 2015-06-05 19:30:12 UTC
There's no spell checking option in the context-menu ( that's what it looks like on my system, including one expanded submenu http://imgur.com/T8EOIIj )
Comment 12 Claudius 2015-06-05 19:32:02 UTC
for testing, i removed auto-complete (set it to "none") it did not help, either.
Comment 13 caulier.gilles 2015-06-05 19:38:55 UTC
Disable text completion well...

Gilles Caulier
Comment 14 Claudius 2015-06-05 20:01:26 UTC
Yes i did. It did not help, nor did other text-completion settings i tried. Whenever the first character is typed (and i don't even see it appear in the text-field!) the program freezes.
Comment 15 Claudius 2015-06-21 16:48:21 UTC
I hope this issue will resolve itself with 5.0 :-(
*bump*
Comment 16 caulier.gilles 2015-06-21 17:05:08 UTC
Did you try to backup your database, remove it, restart digiKam, repopulate it and try again ?

Gilles Caulier
Comment 17 Claudius 2015-06-21 17:09:18 UTC
as mentioned in the original post, i tried with a completely empty database with just a few images imported. It happens always. With "my" database, with an empty new database. On the first try.
Comment 18 Maik Qualmann 2015-06-21 19:12:01 UTC
A quick test with a VM no crash has occurred...

Maik
Comment 19 Claudius 2015-06-26 14:04:44 UTC
Tried a different machine (Win 8.1, though), it did not crash there. On my main machine, the crash is reproducible 100%. It even survives new databases and a complete uninstall (including registry key hunting and %AppData% folders) and reinstall.

Closing it as RESOLVED/WORKSFORME for now, it's probably my setup. Thanks for the help.