Bug#808244: dolphin: Crashes randomly and frequently

[Alex Henry <tukkek@gmail.com>]

Package: dolphin
Version: 4:15.08.3-1
Severity: important
Tags: upstream

I'm sorry about opening a bug report with so little information
but this is a major issue with dolphin, at least on my setup so
it needs to be informed.

The program crashes constanly and I can't find steps to reproduce
it. The crashes always happen when I'm interacting with the application
(never when it is idle in the backdround). It seems to happen more
often when I am using drag-and-drop operations between split views
but not only then and mostly randomly so it could be my imagination.

The crashes simply close the Dolphin window without error messages
except for "Segmentation fault' if it was open via a console. 

These messages appear on start-up but I'd guess they are not
driectly related to the problem

    "Trying to convert empty KLocalizedString to QString."
    KSambaShare: Could not find smb.conf!

I am using KDE5. I haven't had anything similar happen to any
other KDE application like kate, kwrite or amarok.

Steps to reproduce: simply use a dolphin instance for 3-5 minutes. 
Simply browsing the filesystem is enough for the bug to trigger
eventually. As you can see this is a major usability issue.

Opening a new instance will have the same results: it will work
as expected for a little while then crash again. If more than
one window is open only a single one will crash at a time. The
other one will crash too after a little more use.

Let me know if there is anything else I can do to try to narrow
the issue down. All I know for sure is that dolphin is crashing
constantly and reliably. I'll update this request if I notice
any reproducible patterns in the future.


-- System Information:
Debian Release: stretch/sid
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: amd64 (x86_64)

Kernel: Linux 4.2.0-1-amd64 (SMP w/8 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages dolphin depends on:
ii  libc6                  2.19-22
ii  libdolphinvcs5         4:15.08.3-1
ii  libkf5baloo5           5.16.0-1
ii  libkf5baloowidgets5    15.08.0-2
ii  libkf5bookmarks5       5.16.0-1
ii  libkf5codecs5          5.16.0-1
ii  libkf5completion5      5.16.0-1
ii  libkf5configcore5      5.16.0-1
ii  libkf5configgui5       5.16.0-1
ii  libkf5configwidgets5   5.16.0-1
ii  libkf5coreaddons5      5.16.0-1
ii  libkf5dbusaddons5      5.16.0-1
ii  libkf5filemetadata3    5.16.0-1
ii  libkf5i18n5            5.16.0-1
ii  libkf5iconthemes5      5.16.0-1
ii  libkf5itemviews5       5.16.0-1
ii  libkf5jobwidgets5      5.16.0-1
ii  libkf5kcmutils5        5.16.0-1
ii  libkf5kiocore5         5.16.0-1
ii  libkf5kiofilewidgets5  5.16.0-1
ii  libkf5kiowidgets5      5.16.0-1
ii  libkf5newstuff5        5.16.0-1
ii  libkf5notifications5   5.16.0-1
ii  libkf5parts5           5.16.0-1
ii  libkf5service-bin      5.16.0-1
ii  libkf5service5         5.16.0-1
ii  libkf5solid5           5.16.0-1
ii  libkf5textwidgets5     5.16.0-1
ii  libkf5widgetsaddons5   5.16.0-1
ii  libkf5windowsystem5    5.16.0-1
ii  libkf5xmlgui5          5.16.0-1
ii  libphonon4qt5-4        4:4.8.3-2
ii  libqt5core5a           5.5.1+dfsg-8
ii  libqt5dbus5            5.5.1+dfsg-8
ii  libqt5gui5             5.5.1+dfsg-8
ii  libqt5widgets5         5.5.1+dfsg-8
ii  libqt5xml5             5.5.1+dfsg-8
ii  libstdc++6             5.2.1-23
ii  phonon4qt5             4:4.8.3-2

Versions of packages dolphin recommends:
ii  ruby  1:2.2.3

Versions of packages dolphin suggests:
pn  dolphin-plugins  <none>

-- no debconf information