• Home
  • Categories
  • WIKI
  • LANGUAGE: en
    • Deepin Dock keeps crashing and restarting
    Community Discussion 2876 views · 8 replies ·
    Tofloor
    poster avatar
    fusion809
    deepin
    2018-01-09 07:18
    Author
    Edited by fusion809 at 2018-1-8 23:43

    Hi,

    I am not sure what I did but the deepin dock keeps crashing and re-starting for me whenever I touch it (including when I launch an application on it, move icons on it, etc.). I have tried removing my config directory (~/.config) in the hope it was merely a faulty config but it still keeps doing this. I have also tried re-installing dde-dock as well as deepin window manager-related packages in the hope it was a window manager issue (which now I realize is somewhat ridiculous as window titlebars do not disappear when the dock crashes). Any ideas what the problem is? I'm presently in the process of re-installing all my packages with:

    1. sudo apt-get install --reinstall -y $(dpkg --list | grep "^ii" | cut -d ' ' -f 3)
    Copy the Code


    in the possibly vain hope that this fixes things. Oh and by-the-way my system is up-to-date in case you're wondering I regularly run:

    1. sudo apt-get update && sudo apt-get dist-upgrade -y && sudo apt-get autoremove -y && sudo apt-get autoclean
    Copy the Code

    Programs like the file manager and VLC seem more prone to crashing too for some reason.

    I tried to debug this myself with:


    2. LD_DEBUG=libs dde-dock &> lib-debug-dde-dock.log
    Copy the Code


    returns https://gist.github.com/9cd2046ce9164fc61abb9f4380fd4dc9.

    Precise error that occurs when dde dock crashed (which it did at the end of this log) was a segmentation fault.  

    Thanks for your time,
    Brenton

    Reply Favorite View the author
    All Replies
    aida
    deepin
    2018-01-09 23:39
    #1
    Please submit your log  the next time the crash issue happen and send to us.
    Reply View the author
    duanyao
    deepin
    2018-01-10 03:00
    #2
    If this issue can't be reproduced easily, I would recommend you to install debug symbols (package dde-dock-dbgsym), or even better, download & compile dde-dock from source with debug symbols, and then attach gdb to get a backtrace of the crash.
    Reply View the author
    fusion809
    deepin
    2018-01-10 12:20
    #3
    Edited by fusion809 at 2018-1-10 04:48

    Sorry that I didn't mention this earlier but I actually tried that and ran strace on dde-dock (with debugging symbols). The problem is that the strace is so long that I can't pastebin it or gist it. Likewise this site won't let me upload it (like to a reply to this thread), I'm left uploading to my Dropbox / Google Drive and my browsers have been having a hard time with this. I suppose I could upload it in a repo to GitHub. Here it is https://raw.githubusercontent.com/fusion809/strace-deepin-dock/master/strace.log.
    Reply View the author
    fusion809
    deepin
    2018-01-10 12:22
    #4
    Edited by fusion809 at 2018-1-10 04:23

    By-the-way is there a way I can receive email notifications from this forum whenever a new reply is made?
    Reply View the author
    duanyao
    deepin
    2018-01-10 17:57
    #5
    https://bbs.deepin.org/post/151424
    Edited by fusion809 at 2018-1-10 04:48

    Sorry that I didn't mention this earlier but I actually tr ...

    You can zip and upload it as an attachment (flash must be enabled).
    Reply View the author
    duanyao
    deepin
    2018-01-10 18:08
    #6
    https://bbs.deepin.org/post/151424
    Edited by fusion809 at 2018-1-10 04:48

    Sorry that I didn't mention this earlier but I actually tr ...

    Your strace said:

    --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x7fff02f33ff8} ---
    Seems a pointer dereferencing bug https://stackoverflow.com/questions/1000002/what-is-segv-maperr

    However, strace reveals only system calls but this issue seems coming from userspace, so I recommend gdb for further investigation.

    Steps: run `gdb`, run gdb command `attach pid_of_dde_dock`, and run gdb command  'c' to let dde-dock to continue; wait until dde-dock crashes, and run gdb command `bt` to get the backtrace.
    Reply View the author
    fusion809
    deepin
    2018-01-12 18:18
    #7
    Well it doesn't do this on a fresh install so I'm going to hope that a re-install fixes this. If this fails I'll use GDB. Given that this bug affects so many programs I suspect it will be complex to fix.
    Reply View the author
    fusion809
    deepin
    2018-01-12 19:31
    #8
    Edited by fusion809 at 2018-1-12 14:24

    Well I found out that the cause of the problem was my dotfiles. See I copied them from my old install to my new install and the problem occurred in the new install, which gave me a hint as to the problem. Some dot file in my home folder was causing the problem. I do not know which one, but I do know it wasn't my .config folder or .local folder. I removed these two folders, then checked if the problem still occurred and it did. Then removed all other dot files and folders and the problem went away.
    Reply View the author