Konqueror sometimes crashes when copy a file #147

Step to reproduce this (note: it is not systematic, but happens several times).

open Konqueror to a folder
download a file into the same folder using firefox
select file in Konqueror, cut it using the keyboard (Ctrl+x)
change tab and paste it using the keyboard.

Often (but not always) Konqueror crashes.

Michele,

I just tried this and I can't reproduce.

I started looking into those, because my other issue with konqueror crashing when inserting/ejecting DVDs was pointing to tqt3/src/widgets/qlistview.cpp

I have now reproducible crash of tdedevelop pointing again to tqt3/src/widgets/qlistview.cpp

However those crashes are pointing to different functions that cause the crash.

And I was not able to reproduce the crash from my #134 and I tried yours, but couldn't reproduce it either.

Which view are you using in konqueror? I am using the list view (obviously :) )

my TDE is in state of last month (28.06)

I wonder what exactly solved the issues in konqueror

Hi Emanoil, I use the detailed list view (obviously 😉).

I am not able to reproduce the konqueror crash above all the times, but I have seen this happening enough times to open an issue. There must be something triggering this behavior, because it does not happen all the times. But it definitely does! :-(

Hi,
with detailed listview it is reproducible. At least I could reproduce it now:

Open two konqueror instances and changed to detailed view
CTRL+x on one JPEG file and CTRL+p in the other instance
crashed

It points to konq_listview.cc but it does not mention the widgets/qlistview.cpp.

There is something around those listviews - I can smell it :)

yes, it does happens. But again I can't reproduce it all the time :-( Next time it happens I will capture the crash dump and check further.

This seems to be a good way to reproduce this (although not 100% of the times).

download a vim color file from github in zip format and save it
in Konqueror unzip the file in the same folder
select one of the uncompresses file (usually in subfolder) and ctrl-x
go to different tab/folder and ctrl-v

Most of the times, Konqueror crashes.

I managed to crash this and I capture the crash dump. Uploading for reference for when we can take a look at it.

konqueror-crash-on-copy.kcrash.gz

9.8 KiB

This seems to be a good way to reproduce this (although not 100% of the times).

download a vim color file from github in zip format and save it

Step 1. is not even required. Just use a zip file in your file system and follow steps 2 to 4 to reproduce the problem.

@deloptes

Emanoil, could you please check whether the option "Prevent empty clipboard" is set on your Klipper config page?

@MicheleC where do I find it - can you send a screenshot, because I have different locales

image.png

54 KiB

image.png

54 KiB

It's the fifth option from top, I see you have it enable.
Could you try disabling it and see if the problem is no longer reproducable? Please try a few times, to be sure 😄

klipper.png

57 KiB

Hi Michele,
tested few times the scenario with the "Detailed View" and the tabs in konqueror.

When the option is enabled it always crashes. When disabled it does not crash.

That is also what I see, thanks for confirming it Emanoil. It's a tricky bug 😓

@deloptes @SlavekB

PR #178 is a proposed fix for this issue. I have not observed any further crashes with such change, but given the random nature of the problem it would be good if you could test as well to confirm you also don't see any more crashes. If all is good we can later merge.

Note: To allow testing by a wider number of users, I added a patch to the tdebase packages that are available in the PSB and PTB repositories. So, you can possibly send information about testing this fix to ML.

Fixed by PR #178.