Plasmashell stuck at boot

Support KDE Plasma
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1

  1. What’s wrong:
    When I boot up manjaro, plasmashell will stuck at something and it’s fully unusable(the GUI looks normal, but won’t response if I click on it).

    I used sudo strace -p $PID, found it keeps to search for an unexist file:

    output

    statx(AT_FDCWD, “/home/lob/go/src/github.com/lobshunter/test/tv/movie61959.mp4”, AT_STATX_SYNC_AS_STAT|AT_SYMLINK_NOFOLLOW, STATX_ALL, 0x7ffe1db46830) = -1 ENOENT (没有那个文件或目录)
    write(6, “\1\0\0\0\0\0\0\0”, 8) = 8
    futex(0x7ffe1db464b0, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (资源暂时不可用)
    clock_gettime(CLOCK_MONOTONIC, {tv_sec=65, tv_nsec=438657327}) = 0
    write(6, “\1\0\0\0\0\0\0\0”, 8) = 8
    futex(0x55ce1ae7a6c0, FUTEX_WAIT_PRIVATE, 0, NULL) = 0
    futex(0x55ce1ae7a670, FUTEX_WAKE_PRIVATE, 1) = 0
    write(6, “\1\0\0\0\0\0\0\0”, 8) = 8
    futex(0x7ffe1db46600, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (资源暂时不可用)
    fcntl(43, F_SETLK, {l_type=F_UNLCK, l_whence=SEEK_SET, l_start=125, l_len=1}) = 0
    fcntl(43, F_SETLK, {l_type=F_RDLCK, l_whence=SEEK_SET, l_start=125, l_len=1}) = 0
    fcntl(43, F_SETLK, {l_type=F_UNLCK, l_whence=SEEK_SET, l_start=125, l_len=1}) = 0
    fcntl(43, F_SETLK, {l_type=F_RDLCK, l_whence=SEEK_SET, l_start=125, l_len=1}) = 0zz
    statx(AT_FDCWD, “/home/lob/go/src/github.com/lobshunter/test/tv/movie61959.mp4”, AT_STATX_SYNC_AS_STAT|AT_SYMLINK_NOFOLLOW, STATX_ALL, 0x7ffe1db46830) = -1 ENOENT (没有那个文件或目录)
    write(6, “\1\0\0\0\0\0\0\0”, 8) = 8
    futex(0x7ffe1db464b0, FUTEX_WAIT_PRIVATE, 0, NULL) = 0
    clock_gettime(CLOCK_MONOTONIC, {tv_sec=65, tv_nsec=446772980}) = 0
    write(6, “\1\0\0\0\0\0\0\0”, 8) = 8
    futex(0x55ce1a4b8da0, FUTEX_WAIT_PRIVATE, 0, NULL) = 0
    futex(0x55ce1a4b8d50, FUTEX_WAKE_PRIVATE, 1) = 0
    write(6, “\1\0\0\0\0\0\0\0”, 8) = 8
    futex(0x7ffe1db46600, FUTEX_WAIT_PRIVATE, 0, NULL) = 0
    fcntl(43, F_SETLK, {l_type=F_UNLCK, l_whence=SEEK_SET, l_start=125, l_len=1}) = 0
    fcntl(43, F_SETLK, {l_type=F_RDLCK, l_whence=SEEK_SET, l_start=125, l_len=1}) = 0
    fcntl(43, F_SETLK, {l_type=F_UNLCK, l_whence=SEEK_SET, l_start=125, l_len=1}) = 0
    fcntl(43, F_SETLK, {l_type=F_RDLCK, l_whence=SEEK_SET, l_start=125, l_len=1}) = 0
    statx(AT_FDCWD, “/home/lob/go/src/github.com/lobshunter/test/tv/movie61959.mp4”, AT_STATX_SYNC_AS_STAT|AT_SYMLINK_NOFOLLOW, STATX_ALL, 0x7ffe1db46830) = -1 ENOENT (没有那个文件或目录)

    I downloaded this video and played it with VLC player last night.
    The video was deleted by rm $FILENAME.

    Then I started to have this issue on next boot.

  2. Workaround
    Since plasmashell is searching for that file, I did touch $filename.
    Then plasmashell stops the infinite loop and works normally.

  3. Minimal reproduce steps(perhaps)
    (I am not sure about this part cause I my system is still broken)

    1. download a video, play it with VLC-player
    2. remove the video by rm $filename
    3. reboot

  4. software versions
    manjaro branch testing
    plasmashell 5.20.5
    kernel 5.10.13-1

    This issue happened before the 2021-02-05 testing update. Applying the update doesn’t solve the problem.

2

:+1: Welcome to Manjaro! :+1:

  1. If you’re on the [testing] branch, you’re better off following the testing announcements and posting any issues there.

    [Testing Update] 2021-02-05 - Kernels, Gnome 40-Alpha, KDE Apps 20.12.2, Systemd, Mesa, LibreOffice 7.1

  2. Alternatively, If you’re not a Linux wizard, you’re better off switching to the stable version

:+1: