[dolphin] [Bug 431303] Dolphin crashed while doing local and remote file operations at the same time

[Vince LaConte]

https://bugs.kde.org/show_bug.cgi?id=431303

--- Comment #4 from Vince LaConte <vince at id.iit.edu> ---
Created attachment 140015
  --> https://bugs.kde.org/attachment.cgi?id=140015&action=edit
New crash information added by DrKonqi

dolphin (20.12.3) using Qt 5.15.2

- What I was doing when the application crashed:

In background, uploading (copying) two large files to Google Drive (Dolphin
drag-drop to Google Chrome.)
In foreground, browsing, with thumbnail previews on, several dozen local (USB
attached drive) folders containing several hundred 300K-500K JPG files each.
Twice in a row, Dolphin crashed on a "CD ../" command (keyboard shortcut:
Alt+UpArrow) from a picture folder up to the parent folder on the local drive.
The remote operation continued unaffected both times.
After installing debug symbols, otherwise identical conditions, I haven't yet
reproduced the crash a third time.

-- Backtrace (Reduced):
#4  __GI_raise (sig=sig at entry=6) at ../sysdeps/unix/sysv/linux/raise.c:49
#5  0x00007f1c01394864 in __GI_abort () at abort.c:79
[...]
#7  0x00007f1c014963fa in __GI___fortify_fail (msg=msg at entry=0x7f1c0151c93b
"stack smashing detected") at fortify_fail.c:26
#8  0x00007f1c014963c6 in __stack_chk_fail () at stack_chk_fail.c:24
#9  0x00007f1c012bd85b in KFileItemModel::index
(this=this at entry=0x56308474eeb0, url=...) at
./src/kitemviews/kfileitemmodel.cpp:445

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