Public bug reported:
First off, apologies there are lots of components this could be from, I
don't know which one.
If I click on a link in the Slack snap, nothing happens to open that
link. In the background, from what I can tell, a loop of `systemd
--user`, calling `xdg-open`, calling `kde-open5` occurs. This keeps
going. Each time I click on a link a new loop starts up and my CPU fan
starts getting louder :)
`xdg-desktop-portal` and `xdg-desktop-portal-kde` are also hanging
around but without restarting, unlike the other processes which are new
ones each time. I did have a `kde-open5` crash yesterday which is
probably related, but at the time I didn't know what had caused it.
If I `pkill kde-open5`, then all loops stop running.
Strace of `xdg-desktop-portal`, which is using a constant ~6% CPU gives a
rapidly repeating version of the below (not useful I bet):
poll([{fd=3, events=POLLIN}, {fd=7, events=POLLIN}], 2, -1) = 1 ([{fd=3,
revents=POLLIN}])
read(3, "\1\0\0\0\0\0\0\0", 16) = 8
futex(0x7f21dc7a22a8, FUTEX_WAKE_PRIVATE, 1) = 0
poll([{fd=3, events=POLLIN}, {fd=7, events=POLLIN}], 2, -1) = 1 ([{fd=3,
revents=POLLIN}])
read(3, "\1\0\0\0\0\0\0\0", 16) = 8
futex(0x56187eb3aee0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x56187eb3aed0, FUTEX_WAKE_PRIVATE, 1) = 1
poll([{fd=3, events=POLLIN}, {fd=7, events=POLLIN}], 2, -1) = 1 ([{fd=3,
revents=POLLIN}])
read(3, "\1\0\0\0\0\0\0\0", 16) = 8
poll([{fd=3, events=POLLIN}, {fd=7, events=POLLIN}], 2, -1) = 1 ([{fd=3,
revents=POLLIN}])
read(3, "\2\0\0\0\0\0\0\0", 16) = 8
futex(0x56187eb3aee0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x56187eb3aed0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x56187eb3a228, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x56187eb3aee0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x56187eb3aed0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x7f21cc003ba8, FUTEX_WAKE_PRIVATE, 1) = 1
poll([{fd=3, events=POLLIN}, {fd=7, events=POLLIN}], 2, 0) = 1 ([{fd=3,
revents=POLLIN}])
read(3, "\2\0\0\0\0\0\0\0", 16) = 8
Strace of `xdg-desktop-portal-kde` is a repeating
write(2<UNIX:[127378->128309]>, "xdp-kde-settings: ReadAll called with
parameters:\n", 50) = 50
write(2<UNIX:[127378->128309]>, "xdp-kde-settings: groups:
(\"org.kde.kdeglobals.*\")\n", 56) = 56
write(6<anon_inode:[eventfd]>, "\1\0\0\0\0\0\0\0", 8) = 8
write(6<anon_inode:[eventfd]>, "\1\0\0\0\0\0\0\0", 8) = 8
poll([{fd=5<anon_inode:[eventfd]>, events=POLLIN}], 1, -1) = 1 ([{fd=5,
revents=POLLIN}])
read(5<anon_inode:[eventfd]>, "\1\0\0\0\0\0\0\0", 16) = 8
write(2<UNIX:[127378->128309]>, "xdp-kde-settings: Read called with
parameters:\n", 47) = 47
write(2<UNIX:[127378->128309]>, "xdp-kde-settings: group:
\"org.kde.kdeglobals.General\"\n", 59) = 59
write(2<UNIX:[127378->128309]>, "xdp-kde-settings: key: \"menuFont\"\n",
39) = 39
write(6<anon_inode:[eventfd]>, "\1\0\0\0\0\0\0\0", 8) = 8
poll([{fd=5<anon_inode:[eventfd]>, events=POLLIN}], 1, -1) = 1 ([{fd=5,
revents=POLLIN}])
read(5<anon_inode:[eventfd]>, "\1\0\0\0\0\0\0\0", 16) = 8
write(2<UNIX:[127378->128309]>, "xdp-kde-settings: Read called with
parameters:\n", 47) = 47
write(2<UNIX:[127378->128309]>, "xdp-kde-settings: group:
\"org.kde.kdeglobals.General\"\n", 59) = 59
write(2<UNIX:[127378->128309]>, "xdp-kde-settings: key: \"font\"\n", 35) =
35
write(6<anon_inode:[eventfd]>, "\1\0\0\0\0\0\0\0", 8) = 8
poll([{fd=5<anon_inode:[eventfd]>, events=POLLIN}], 1, -1) = 1 ([{fd=5,
revents=POLLIN}])
read(5<anon_inode:[eventfd]>, "\1\0\0\0\0\0\0\0", 16) = 8
write(2<UNIX:[127378->128309]>, "xdp-kde-settings: Read called with
parameters:\n", 47) = 47
write(2<UNIX:[127378->128309]>, "xdp-kde-settings: group:
\"org.kde.kdeglobals.WM\"\n", 54) = 54
write(2<UNIX:[127378->128309]>, "xdp-kde-settings: key: \"activeFont\"\n",
41) = 41
write(6<anon_inode:[eventfd]>, "\1\0\0\0\0\0\0\0", 8) = 8
poll([{fd=5<anon_inode:[eventfd]>, events=POLLIN}], 1, -1) = 1 ([{fd=5,
revents=POLLIN}])
read(5<anon_inode:[eventfd]>, "\1\0\0\0\0\0\0\0", 16) = 8
write(2<UNIX:[127378->128309]>, "xdp-kde-settings: Read called with
parameters:\n", 47) = 47
write(2<UNIX:[127378->128309]>, "xdp-kde-settings: group:
\"org.kde.kdeglobals.General\"\n", 59) = 59
write(2<UNIX:[127378->128309]>, "xdp-kde-settings: key:
\"toolBarFont\"\n", 42) = 42
ProblemType: Bug
DistroRelease: Ubuntu 19.04
Package: xdg-utils 1.1.3-1ubuntu2
ProcVersionSignature: Ubuntu 5.0.0-8.9-generic 5.0.1
Uname: Linux 5.0.0-8-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.10-0ubuntu23
Architecture: amd64
CurrentDesktop: KDE
Date: Wed Apr 3 09:54:04 2019
InstallationDate: Installed on 2018-10-22 (162 days ago)
InstallationMedia: Kubuntu 18.10 "Cosmic Cuttlefish" - Release amd64
(20181017.2)
PackageArchitecture: all
SourcePackage: xdg-utils
UpgradeStatus: Upgraded to disco on 2019-03-27 (6 days ago)
** Affects: xdg-utils (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug disco
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https://bugs.launchpad.net/bugs/1822973
Title:
Clicking link in slack snap causes infinite loop of retrying xdg-open
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