Docky.exe assert failure: free(): invalid pointer

[ichro furuya]

Ubuntu 18.04 LTS (Japanese environment)

Docky version: 2.2.1.1-1
Kernel version: 4.15.0.20

When I use docklet's "Recent Documents" at "Docky", suddenly "Docky" will end. (Crash)

The following URL address was displayed, but it can not be found.

DuplicateOf
https://bugs.launchpad.net/bugs/1758268

Since I can not find known problems in automatic reporting, I reported it manually.

---

[Procedure to reoccur]

1. I installed "docky" by using the terminal and entering the following command.
$ sudo apt update
$ sudo apt install docky

2. I displayed all the applications in "Super + A".
3. I will click "docky" and start the dock.
4. I right-click "docky" on the far left and open "Settings".
5. I opened the "Docklet" tab and added "Recent Documents".

6. I restarted. The dock will be displayed.
7. I right click on "Recent Documents".
8. A list of document creation history appears.
9. I clicked one from the list.
10. The file opens in the "gedit" application.

11. After that, we do not accept any input.
I can not take screenshots.

12. After a while, the dock suddenly disappeared from the desktop screen.

13. After a while, the error report screen opened.
"Application Docky suddenly ended."

14. When trying to send, "The problem is known thing" was displayed.

ProblemType: Crash
DistroRelease: Ubuntu 18.04
Package: docky 2.2.1.1-1
ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17
Uname: Linux 4.15.0-20-generic x86_64
ApportVersion: 2.20.9-0ubuntu7
Architecture: amd64
AssertionMessage: free(): invalid pointer
CurrentDesktop: ubuntu:GNOME
Date: Sat May 5 16:21:37 2018
ExecutablePath: /usr/lib/docky/Docky.exe
ExecutableTimestamp: 1441271557
InstallationDate: Installed on 2018-05-04 (0 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
InterpreterPath: /usr/bin/mono-sgen
PackageArchitecture: all
ProcCmdline: mono /usr/lib/docky/Docky.exe
ProcCwd: /home/ubn
ProcEnviron:
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=ja_JP.UTF-8
 SHELL=/bin/bash
Signal: 6
SourcePackage: docky
StacktraceTop:
 __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51
 __GI_abort () at abort.c:79
 __libc_message (action=action@entry=do_abort, fmt=fmt@entry=0x7fb451540b9a "%s\n") at ../sysdeps/posix/libc_fatal.c:181
 malloc_printerr (str=str@entry=0x7fb45153ed88 "free(): invalid pointer") at malloc.c:5350
 _int_free (have_lock=0, p=0x5597480ee4d0, av=0x7fb451775c40 <main_arena>) at malloc.c:4157
Title: Docky.exe assert failure: free(): invalid pointer
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make this software better. This particular crash has already been reported and is a duplicate of bug #1758268, so is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.