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high cpu usage in Xorg after switching back from tty
Status:
RESOLVED: MOVED
Priority:
Medium
Severity:
normal
Product:
Xfce4-settings
Component:
Xfsettingsd

Comments

Description inactive 2020-04-22 12:33:08 CEST 
Created attachment 9778 
thread apply all bt full

my xfce4-settings is at
commit d819d128bbf44a5e50b05f6dff853b4238895af7 (HEAD -> makepkg, origin/master, origin/HEAD)
Date:   Tue Apr 14 23:59:36 2020 +0200

If I switch to tty2 via ctrl+alt+F2, and then wait 2-3 seconds, then switch back to X by Alt+F1, then xfsettingsd process gets 27% CPU usage constantly, and Xorg gets 91% CPU usage constantly, and shortcut keys like ctrl+alt+d to start xfce4-terminal have no effect while this is happening.

If I start it like this before I attempt to repro. :
$ XFSETTINGSD_DEBUG=1 xfsettingsd --replace --no-daemon

then this is what I see:
$ XFSETTINGSD_DEBUG=1 xfsettingsd --replace --no-daemon
xfce4-settings(xsettings): _XSETTINGS_S0 registered on screen 0
xfce4-settings(xsettings): 32 settings changed (serial=0, len=1276)
xfce4-settings(xsettings): resource manager (xft) changed (len=136)
xfce4-settings(displays): Detected CRTC 79.
xfce4-settings(displays): Detected CRTC 80.
xfce4-settings(displays): Detected output 82 LVDS.

(xfsettingsd:133959): xfconf-WARNING **: 12:11:20.954: Error check failed at IA__xfconf_channel_reset_property():692: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Schemes/Apply" does not exist on channel "displays"

(xfsettingsd:133959): xfconf-WARNING **: 12:11:20.955: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/AutoEnableProfiles" does not exist on channel "displays"
xfce4-settings(displays): CRTC 79 assigned to LVDS.
xfce4-settings(displays): CRTC 79, output list[0] -> 82.
xfce4-settings(displays): Total 1 active output(s).
xfce4-settings(displays): Normalized CRTC 79: size=1366x768, pos=0x0.
xfce4-settings(displays): min_h = 200, min_w = 320, max_h = 8192, max_w = 8192, prev_h = 768, prev_w = 1366, prev_hmm = 203, prev_wmm = 361, h = 768, w = 1366, hmm = 203, wmm = 361.
xfce4-settings(displays): Configuring CRTC 79.
xfce4-settings(displays): Configuring CRTC 80.
xfce4-settings(pointers): initialized xi 2.3

(xfsettingsd:133959): xfconf-WARNING **: 12:11:20.959: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Virtual_core_XTEST_pointer/RightHanded" does not exist on channel "pointers"

(xfsettingsd:133959): xfconf-WARNING **: 12:11:20.959: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Virtual_core_XTEST_pointer/ReverseScrolling" does not exist on channel "pointers"

(xfsettingsd:133959): xfconf-WARNING **: 12:11:20.960: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Virtual_core_XTEST_pointer/Threshold" does not exist on channel "pointers"

(xfsettingsd:133959): xfconf-WARNING **: 12:11:20.961: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Virtual_core_XTEST_pointer/Acceleration" does not exist on channel "pointers"

(xfsettingsd:133959): xfconf-WARNING **: 12:11:20.962: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Virtual_core_XTEST_pointer/Mode" does not exist on channel "pointers"

(xfsettingsd:133959): xfconf-WARNING **: 12:11:20.963: Error check failed at IA__xfconf_channel_get_properties():736: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Virtual_core_XTEST_pointer/Properties" does not exist on channel "pointers"

(xfsettingsd:133959): xfconf-WARNING **: 12:11:20.964: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Genius_24G_Wireless_BlueEye_Mouse/RightHanded" does not exist on channel "pointers"

(xfsettingsd:133959): xfconf-WARNING **: 12:11:20.965: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Genius_24G_Wireless_BlueEye_Mouse/ReverseScrolling" does not exist on channel "pointers"

(xfsettingsd:133959): xfconf-WARNING **: 12:11:20.966: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Genius_24G_Wireless_BlueEye_Mouse/Threshold" does not exist on channel "pointers"

(xfsettingsd:133959): xfconf-WARNING **: 12:11:20.966: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Genius_24G_Wireless_BlueEye_Mouse/Acceleration" does not exist on channel "pointers"

(xfsettingsd:133959): xfconf-WARNING **: 12:11:20.967: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Genius_24G_Wireless_BlueEye_Mouse/Mode" does not exist on channel "pointers"

(xfsettingsd:133959): xfconf-WARNING **: 12:11:20.968: Error check failed at IA__xfconf_channel_get_properties():736: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Genius_24G_Wireless_BlueEye_Mouse/Properties" does not exist on channel "pointers"

(xfsettingsd:133959): xfconf-WARNING **: 12:11:20.969: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Genius_24G_Wireless_BlueEye_Mouse_Consumer_Control/ReverseScrolling" does not exist on channel "pointers"
xfce4-settings(pointers): [Genius 2.4G Wireless BlueEye Mouse Consumer Control] buttonmap not changed
xfce4-settings(pointers): [Genius 2.4G Wireless BlueEye Mouse Consumer Control] change feedback (threshold=4, accelNum=2, accelDenom=1)

(xfsettingsd:133959): xfconf-WARNING **: 12:11:20.971: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Genius_24G_Wireless_BlueEye_Mouse_Consumer_Control/Mode" does not exist on channel "pointers"

(xfsettingsd:133959): xfconf-WARNING **: 12:11:20.972: Error check failed at IA__xfconf_channel_get_properties():736: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Genius_24G_Wireless_BlueEye_Mouse_Consumer_Control/Properties" does not exist on channel "pointers"
xfce4-settings(pointers): [SynPS/2 Synaptics TouchPad] buttonmap not changed

(xfsettingsd:133959): xfconf-WARNING **: 12:11:20.973: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/SynPS2_Synaptics_TouchPad/Mode" does not exist on channel "pointers"
xfce4-settings(pointers): [SynPS/2 Synaptics TouchPad] Changed device property Device_Enabled
xfce4-settings(keyboards): initialized xkb 1.0

(xfsettingsd:133959): xfconf-WARNING **: 12:11:20.989: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/KeyRepeat" does not exist on channel "keyboards"
xfce4-settings(keyboards): set auto repeat on
xfce4-settings(keyboards): set key repeat (delay=250, rate=50)

(xfsettingsd:133959): xfconf-WARNING **: 12:11:20.990: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/RestoreNumlock" does not exist on channel "keyboards"
xfce4-settings(keyboards): set numlock off

(xfsettingsd:133959): xfconf-WARNING **: 12:11:20.991: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/AccessXKeys" does not exist on channel "accessibility"
xfce4-settings(accessibility): AccessXKeys disabled

(xfsettingsd:133959): xfconf-WARNING **: 12:11:20.992: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/StickyKeys" does not exist on channel "accessibility"
xfce4-settings(accessibility): stickykeys disabled

(xfsettingsd:133959): xfconf-WARNING **: 12:11:20.993: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/SlowKeys" does not exist on channel "accessibility"
xfce4-settings(accessibility): slowkeys disabled

(xfsettingsd:133959): xfconf-WARNING **: 12:11:20.993: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/BounceKeys" does not exist on channel "accessibility"
xfce4-settings(accessibility): bouncekeys disabled

(xfsettingsd:133959): xfconf-WARNING **: 12:11:20.994: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/MouseKeys" does not exist on channel "accessibility"
xfce4-settings(accessibility): mousekeys disabled
xfce4-settings(keyboard-shortcuts): 21 shortcuts loaded

(xfsettingsd:133959): xfconf-WARNING **: 12:11:21.018: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/XkbModel" does not exist on channel "keyboard-layout"
xfce4-settings(keyboard-layout): spawning "xmodmap /home/user/.Xmodmap"
xfce4-settings(fontconfig): monitoring 59 paths
xfce4-settings(workspaces): 4 desktop names set from xfconf
xfce4-settings(keyboard-layout): New keyboard detected; restoring XKB settings.

(xfsettingsd:133959): xfconf-WARNING **: 12:12:09.283: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/XkbModel" does not exist on channel "keyboard-layout"

(xfsettingsd:133959): xfconf-WARNING **: 12:12:09.284: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/XkbModel" does not exist on channel "keyboard-layout"
xfce4-settings(keyboard-layout): spawning "xmodmap /home/user/.Xmodmap"
xfce4-settings(keyboard-layout): New keyboard detected; restoring XKB settings.

(xfsettingsd:133959): xfconf-WARNING **: 12:12:09.290: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/XkbModel" does not exist on channel "keyboard-layout"

(xfsettingsd:133959): xfconf-WARNING **: 12:12:09.292: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/XkbModel" does not exist on channel "keyboard-layout"
xfce4-settings(keyboard-layout): spawning "xmodmap /home/user/.Xmodmap"
xfce4-settings(keyboard-layout): New keyboard detected; restoring XKB settings.

(xfsettingsd:133959): xfconf-WARNING **: 12:12:09.302: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/XkbModel" does not exist on channel "keyboard-layout"

(xfsettingsd:133959): xfconf-WARNING **: 12:12:09.303: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/XkbModel" does not exist on channel "keyboard-layout"
xfce4-settings(keyboard-layout): spawning "xmodmap /home/user/.Xmodmap"
xfce4-settings(keyboard-layout): New keyboard detected; restoring XKB settings.

(xfsettingsd:133959): xfconf-WARNING **: 12:12:09.323: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/XkbModel" does not exist on channel "keyboard-layout"

(xfsettingsd:133959): xfconf-WARNING **: 12:12:09.323: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/XkbModel" does not exist on channel "keyboard-layout"
xfce4-settings(keyboard-layout): spawning "xmodmap /home/user/.Xmodmap"
xfce4-settings(keyboard-layout): New keyboard detected; restoring XKB settings.

(xfsettingsd:133959): xfconf-WARNING **: 12:12:09.336: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/XkbModel" does not exist on channel "keyboard-layout"

(xfsettingsd:133959): xfconf-WARNING **: 12:12:09.338: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/XkbModel" does not exist on channel "keyboard-layout"
xfce4-settings(keyboard-layout): spawning "xmodmap /home/user/.Xmodmap"
xfce4-settings(keyboard-layout): New keyboard detected; restoring XKB settings.

(xfsettingsd:133959): xfconf-WARNING **: 12:12:09.345: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/XkbModel" does not exist on channel "keyboard-layout"

(xfsettingsd:133959): xfconf-WARNING **: 12:12:09.346: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/XkbModel" does not exist on channel "keyboard-layout"
xfce4-settings(keyboard-layout): spawning "xmodmap /home/user/.Xmodmap"
xfce4-settings(keyboard-layout): New keyboard detected; restoring XKB settings.

(xfsettingsd:133959): xfconf-WARNING **: 12:12:09.393: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/XkbModel" does not exist on channel "keyboard-layout"

(xfsettingsd:133959): xfconf-WARNING **: 12:12:09.394: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/XkbModel" does not exist on channel "keyboard-layout"
xfce4-settings(keyboard-layout): spawning "xmodmap /home/user/.Xmodmap"
xfce4-settings(keyboard-layout): New keyboard detected; restoring XKB settings.

(xfsettingsd:133959): xfconf-WARNING **: 12:12:09.419: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/XkbModel" does not exist on channel "keyboard-layout"

(xfsettingsd:133959): xfconf-WARNING **: 12:12:09.420: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/XkbModel" does not exist on channel "keyboard-layout"
xfce4-settings(keyboard-layout): spawning "xmodmap /home/user/.Xmodmap"
xfce4-settings(keyboard-layout): New keyboard detected; restoring XKB settings.

(xfsettingsd:133959): xfconf-WARNING **: 12:12:09.440: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/XkbModel" does not exist on channel "keyboard-layout"

(xfsettingsd:133959): xfconf-WARNING **: 12:12:09.441: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/XkbModel" does not exist on channel "keyboard-layout"
xfce4-settings(keyboard-layout): spawning "xmodmap /home/user/.Xmodmap"
xfce4-settings(keyboard-layout): New keyboard detected; restoring XKB settings.

(xfsettingsd:133959): xfconf-WARNING **: 12:12:09.522: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/XkbModel" does not exist on channel "keyboard-layout"

(xfsettingsd:133959): xfconf-WARNING **: 12:12:09.522: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/XkbModel" does not exist on channel "keyboard-layout"
xfce4-settings(keyboard-layout): spawning "xmodmap /home/user/.Xmodmap"
xfce4-settings(keyboard-layout): New keyboard detected; restoring XKB settings.

(xfsettingsd:133959): xfconf-WARNING **: 12:12:09.556: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/XkbModel" does not exist on channel "keyboard-layout"

(xfsettingsd:133959): xfconf-WARNING **: 12:12:09.557: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/XkbModel" does not exist on channel "keyboard-layout"
xfce4-settings(keyboard-layout): spawning "xmodmap /home/user/.Xmodmap"
xfce4-settings(keyboard-layout): New keyboard detected; restoring XKB settings.

(xfsettingsd:133959): xfconf-WARNING **: 12:12:09.595: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/XkbModel" does not exist on channel "keyboard-layout"

(xfsettingsd:133959): xfconf-WARNING **: 12:12:09.596: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/XkbModel" does not exist on channel "keyboard-layout"
xfce4-settings(keyboard-layout): spawning "xmodmap /home/user/.Xmodmap"
xfce4-settings(keyboard-layout): New keyboard detected; restoring XKB settings.

(xfsettingsd:133959): xfconf-WARNING **: 12:12:09.773: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/XkbModel" does not exist on channel "keyboard-layout"

(xfsettingsd:133959): xfconf-WARNING **: 12:12:09.774: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/XkbModel" does not exist on channel "keyboard-layout"
xfce4-settings(keyboard-layout): spawning "xmodmap /home/user/.Xmodmap"
xfce4-settings(keyboard-layout): New keyboard detected; restoring XKB settings.

(xfsettingsd:133959): xfconf-WARNING **: 12:12:09.830: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/XkbModel" does not exist on channel "keyboard-layout"

(xfsettingsd:133959): xfconf-WARNING **: 12:12:09.831: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/XkbModel" does not exist on channel "keyboard-layout"
xfce4-settings(keyboard-layout): spawning "xmodmap /home/user/.Xmodmap"
xfce4-settings(keyboard-layout): New keyboard detected; restoring XKB settings.

(xfsettingsd:133959): xfconf-WARNING **: 12:12:09.891: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/XkbModel" does not exist on channel "keyboard-layout"

(xfsettingsd:133959): xfconf-WARNING **: 12:12:09.892: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/XkbModel" does not exist on channel "keyboard-layout"
xfce4-settings(keyboard-layout): spawning "xmodmap /home/user/.Xmodmap"
xfce4-settings(keyboard-layout): New keyboard detected; restoring XKB settings.

(xfsettingsd:133959): xfconf-WARNING **: 12:12:10.107: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/XkbModel" does not exist on channel "keyboard-layout"

(xfsettingsd:133959): xfconf-WARNING **: 12:12:10.108: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/XkbModel" does not exist on channel "keyboard-layout"
xfce4-settings(keyboard-layout): spawning "xmodmap /home/user/.Xmodmap"
xfce4-settings(keyboard-layout): New keyboard detected; restoring XKB settings.

(xfsettingsd:133959): xfconf-WARNING **: 12:12:10.181: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/XkbModel" does not exist on channel "keyboard-layout"

(xfsettingsd:133959): xfconf-WARNING **: 12:12:10.182: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/XkbModel" does not exist on channel "keyboard-layout"
xfce4-settings(keyboard-layout): spawning "xmodmap /home/user/.Xmodmap"
xfce4-settings(keyboard-layout): New keyboard detected; restoring XKB settings.

(xfsettingsd:133959): xfconf-WARNING **: 12:12:10.236: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/XkbModel" does not exist on channel "keyboard-layout"

(xfsettingsd:133959): xfconf-WARNING **: 12:12:10.237: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/XkbModel" does not exist on channel "keyboard-layout"
xfce4-settings(keyboard-layout): spawning "xmodmap /home/user/.Xmodmap"
xfce4-settings(keyboard-layout): New keyboard detected; restoring XKB settings.

(xfsettingsd:133959): xfconf-WARNING **: 12:12:10.387: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/XkbModel" does not exist on channel "keyboard-layout"

(xfsettingsd:133959): xfconf-WARNING **: 12:12:10.387: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/XkbModel" does not exist on channel "keyboard-layout"
xfce4-settings(keyboard-layout): spawning "xmodmap /home/user/.Xmodmap"
xfce4-settings(keyboard-layout): New keyboard detected; restoring XKB settings.

(xfsettingsd:133959): xfconf-WARNING **: 12:12:10.447: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/XkbModel" does not exist on channel "keyboard-layout"

(xfsettingsd:133959): xfconf-WARNING **: 12:12:10.448: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/XkbModel" does not exist on channel "keyboard-layout"
xfce4-settings(keyboard-layout): spawning "xmodmap /home/user/.Xmodmap"
xfce4-settings(keyboard-layout): New keyboard detected; restoring XKB settings.

(xfsettingsd:133959): xfconf-WARNING **: 12:12:10.523: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/XkbModel" does not exist on channel "keyboard-layout"

(xfsettingsd:133959): xfconf-WARNING **: 12:12:10.524: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/XkbModel" does not exist on channel "keyboard-layout"
xfce4-settings(keyboard-layout): spawning "xmodmap /home/user/.Xmodmap"
xfce4-settings(keyboard-layout): New keyboard detected; restoring XKB settings.

(xfsettingsd:133959): xfconf-WARNING **: 12:12:10.652: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/XkbModel" does not exist on channel "keyboard-layout"

(xfsettingsd:133959): xfconf-WARNING **: 12:12:10.653: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/XkbModel" does not exist on channel "keyboard-layout"
xfce4-settings(keyboard-layout): spawning "xmodmap /home/user/.Xmodmap"
xfce4-settings(keyboard-layout): New keyboard detected; restoring XKB settings.

(xfsettingsd:133959): xfconf-WARNING **: 12:12:10.700: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/XkbModel" does not exist on channel "keyboard-layout"

(xfsettingsd:133959): xfconf-WARNING **: 12:12:10.701: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/XkbModel" does not exist on channel "keyboard-layout"
xfce4-settings(keyboard-layout): spawning "xmodmap /home/user/.Xmodmap"
xfce4-settings(keyboard-layout): New keyboard detected; restoring XKB settings.

(xfsettingsd:133959): xfconf-WARNING **: 12:12:10.770: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/XkbModel" does not exist on channel "keyboard-layout"

(xfsettingsd:133959): xfconf-WARNING **: 12:12:10.770: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/XkbModel" does not exist on channel "keyboard-layout"
xfce4-settings(keyboard-layout): spawning "xmodmap /home/user/.Xmodmap"
xfce4-settings(keyboard-layout): New keyboard detected; restoring XKB settings.

(xfsettingsd:133959): xfconf-WARNING **: 12:12:10.946: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/XkbModel" does not exist on channel "keyboard-layout"

(xfsettingsd:133959): xfconf-WARNING **: 12:12:10.947: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/XkbModel" does not exist on channel "keyboard-layout"
xfce4-settings(keyboard-layout): spawning "xmodmap /home/user/.Xmodmap"
xfce4-settings(keyboard-layout): New keyboard detected; restoring XKB settings.

(xfsettingsd:133959): xfconf-WARNING **: 12:12:10.994: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/XkbModel" does not exist on channel "keyboard-layout"

(xfsettingsd:133959): xfconf-WARNING **: 12:12:10.995: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/XkbModel" does not exist on channel "keyboard-layout"
xfce4-settings(keyboard-layout): spawning "xmodmap /home/user/.Xmodmap"
xfce4-settings(keyboard-layout): New keyboard detected; restoring XKB settings.

(xfsettingsd:133959): xfconf-WARNING **: 12:12:11.055: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/XkbModel" does not exist on channel "keyboard-layout"

(xfsettingsd:133959): xfconf-WARNING **: 12:12:11.056: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/XkbModel" does not exist on channel "keyboard-layout"
xfce4-settings(keyboard-layout): spawning "xmodmap /home/user/.Xmodmap"
xfce4-settings(keyboard-layout): New keyboard detected; restoring XKB settings.

(xfsettingsd:133959): xfconf-WARNING **: 12:12:11.246: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/XkbModel" does not exist on channel "keyboard-layout"

(xfsettingsd:133959): xfconf-WARNING **: 12:12:11.247: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/XkbModel" does not exist on channel "keyboard-layout"
xfce4-settings(keyboard-layout): spawning "xmodmap /home/user/.Xmodmap"
xfce4-settings(keyboard-layout): New keyboard detected; restoring XKB settings.

(xfsettingsd:133959): xfconf-WARNING **: 12:12:11.306: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/XkbModel" does not exist on channel "keyboard-layout"

(xfsettingsd:133959): xfconf-WARNING **: 12:12:11.307: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/XkbModel" does not exist on channel "keyboard-layout"
xfce4-settings(keyboard-layout): spawning "xmodmap /home/user/.Xmodmap"
xfce4-settings(keyboard-layout): New keyboard detected; restoring XKB settings.

(xfsettingsd:133959): xfconf-WARNING **: 12:12:11.376: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/XkbModel" does not exist on channel "keyboard-layout"

(xfsettingsd:133959): xfconf-WARNING **: 12:12:11.377: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/XkbModel" does not exist on channel "keyboard-layout"
xfce4-settings(keyboard-layout): spawning "xmodmap /home/user/.Xmodmap"
xfce4-settings(keyboard-layout): New keyboard detected; restoring XKB settings.

(xfsettingsd:133959): xfconf-WARNING **: 12:12:11.581: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/XkbModel" does not exist on channel "keyboard-layout"

(xfsettingsd:133959): xfconf-WARNING **: 12:12:11.582: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/XkbModel" does not exist on channel "keyboard-layout"
xfce4-settings(keyboard-layout): spawning "xmodmap /home/user/.Xmodmap"
xfce4-settings(keyboard-layout): New keyboard detected; restoring XKB settings.

(xfsettingsd:133959): xfconf-WARNING **: 12:12:11.632: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/XkbModel" does not exist on channel "keyboard-layout"

(xfsettingsd:133959): xfconf-WARNING **: 12:12:11.633: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/XkbModel" does not exist on channel "keyboard-layout"
xfce4-settings(keyboard-layout): spawning "xmodmap /home/user/.Xmodmap"
xfce4-settings(keyboard-layout): New keyboard detected; restoring XKB settings.

(xfsettingsd:133959): xfconf-WARNING **: 12:12:11.682: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/XkbModel" does not exist on channel "keyboard-layout"

(xfsettingsd:133959): xfconf-WARNING **: 12:12:11.683: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/XkbModel" does not exist on channel "keyboard-layout"
xfce4-settings(keyboard-layout): spawning "xmodmap /home/user/.Xmodmap"
xfce4-settings(keyboard-layout): New keyboard detected; restoring XKB settings.

(xfsettingsd:133959): xfconf-WARNING **: 12:12:11.839: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/XkbModel" does not exist on channel "keyboard-layout"

(xfsettingsd:133959): xfconf-WARNING **: 12:12:11.840: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/XkbModel" does not exist on channel "keyboard-layout"
xfce4-settings(keyboard-layout): spawning "xmodmap /home/user/.Xmodmap"
xfce4-settings(keyboard-layout): New keyboard detected; restoring XKB settings.

(xfsettingsd:133959): xfconf-WARNING **: 12:12:11.888: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/XkbModel" does not exist on channel "keyboard-layout"

(xfsettingsd:133959): xfconf-WARNING **: 12:12:11.889: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/XkbModel" does not exist on channel "keyboard-layout"
xfce4-settings(keyboard-layout): spawning "xmodmap /home/user/.Xmodmap"
xfce4-settings(keyboard-layout): New keyboard detected; restoring XKB settings.

(xfsettingsd:133959): xfconf-WARNING **: 12:12:11.948: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/XkbModel" does not exist on channel "keyboard-layout"

(xfsettingsd:133959): xfconf-WARNING **: 12:12:11.949: Error check failed at xfconf_channel_get_internal():455: GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/XkbModel" does not exist on channel "keyboard-layout"
xfce4-settings(keyboard-layout): spawning "xmodmap /home/user/.Xmodmap"




Segmentation fault (core dumped)

note that I did a
$ kill -11 133959
in order to cause it to coredump so I can see where it's stuck(or something), that's why the 'core dumped' message is there:


$ coredumpctl -r gdb
           PID: 133959 (xfsettingsd)
           UID: 1000 (user)
           GID: 1000 (user)
        Signal: 11 (SEGV)
     Timestamp: Wed 2020-04-22 12:12:28 CEST (52s ago)
  Command Line: xfsettingsd --replace --no-daemon
    Executable: /usr/bin/xfsettingsd
 Control Group: /user.slice/user-1000.slice/session-c1.scope
          Unit: session-c1.scope
         Slice: user-1000.slice
       Session: c1
     Owner UID: 1000 (user)
       Boot ID: 71796e183d6d4ac1ab1c9b5fc5d6949e
    Machine ID: d5085e3ae51043e897b15a1939322324
      Hostname: Z575
       Storage: /var/lib/systemd/coredump/core.xfsettingsd.1000.71796e183d6d4ac1ab1c9b5fc5d6949e.133959.1587550348000000000000
       Message: Process 133959 (xfsettingsd) of user 1000 dumped core.
                
                Stack trace of thread 133959:
                #0  0x00007f2997bc3517 __GI___poll (libc.so.6 + 0xf7517)
                #1  0x00007f299722963b n/a (libxcb.so.1 + 0xc63b)
                #2  0x00007f299722b08f n/a (libxcb.so.1 + 0xe08f)
                #3  0x00007f299722b203 xcb_wait_for_reply64 (libxcb.so.1 + 0xe203)
                #4  0x00007f2998007269 _XReply (libX11.so.6 + 0x41269)
                #5  0x00007f2998002bff XSync (libX11.so.6 + 0x3cbff)
                #6  0x00007f299831af97 gdk_x11_display_error_trap_pop_internal (libgdk-3.so.0 + 0x45f97)
                #7  0x00007f2998e0e6fe xfce_shortcuts_grabber_grab (libxfce4kbd-private-3.so.0 + 0x76fe)
                #8  0x00007f2998e0e791 grab_key (libxfce4kbd-private-3.so.0 + 0x7791)
                #9  0x00007f2997d3b352 g_hash_table_foreach (libglib-2.0.so.0 + 0x7f352)
                #10 0x00007f2997e07534 _g_closure_invoke_va (libgobject-2.0.so.0 + 0x23534)
                #11 0x00007f2997e0858d g_signal_emit_by_name (libgobject-2.0.so.0 + 0x2458d)
                #12 0x00007f299832357b gdk_x11_display_translate_event (libgdk-3.so.0 + 0x4e57b)
                #13 0x00007f2998319e67 _gdk_x11_event_translator_translate (libgdk-3.so.0 + 0x44e67)
                #14 0x00007f299831a2f3 gdk_event_source_translate_event (libgdk-3.so.0 + 0x452f3)
                #15 0x00007f299837197b gdk_display_get_event (libgdk-3.so.0 + 0x9c97b)
                #16 0x00007f2998319ef2 gdk_event_source_dispatch (libgdk-3.so.0 + 0x44ef2)
                #17 0x00007f2997d2b32d g_main_dispatch (libglib-2.0.so.0 + 0x6f32d)
                #18 0x00007f2997d2d388 g_main_context_iterate (libglib-2.0.so.0 + 0x71388)
                #19 0x00007f2997d2e403 g_main_loop_run (libglib-2.0.so.0 + 0x72403)
                #20 0x00007f299866142d gtk_main (libgtk-3.so.0 + 0x28d42d)
                #21 0x000055ca8d0fe95a main (xfsettingsd + 0x895a)
                #22 0x00007f2997af30d6 __libc_start_main (libc.so.6 + 0x270d6)
                #23 0x000055ca8d0fea7e _start (xfsettingsd + 0x8a7e)
                
                Stack trace of thread 133960:
                #0  0x00007f2997bc3517 __GI___poll (libc.so.6 + 0xf7517)
                #1  0x00007f2997d2d2fe g_main_context_poll (libglib-2.0.so.0 + 0x712fe)
                #2  0x00007f2997d2d3d0 g_main_context_iteration (libglib-2.0.so.0 + 0x713d0)
                #3  0x00007f2997d2d431 glib_worker_main (libglib-2.0.so.0 + 0x71431)
                #4  0x00007f2997d0332e g_thread_proxy (libglib-2.0.so.0 + 0x4732e)
                #5  0x00007f2997ca359f start_thread (libpthread.so.0 + 0x959f)
                #6  0x00007f2997bce633 __clone (libc.so.6 + 0x102633)
                
                Stack trace of thread 133961:
                #0  0x00007f2997bc3517 __GI___poll (libc.so.6 + 0xf7517)
                #1  0x00007f2997d2d2fe g_main_context_poll (libglib-2.0.so.0 + 0x712fe)
                #2  0x00007f2997d2e403 g_main_loop_run (libglib-2.0.so.0 + 0x72403)
                #3  0x00007f2998165c7e gdbus_shared_thread_func (libgio-2.0.so.0 + 0x5fc7e)
                #4  0x00007f2997d0332e g_thread_proxy (libglib-2.0.so.0 + 0x4732e)
                #5  0x00007f2997ca359f start_thread (libpthread.so.0 + 0x959f)
                #6  0x00007f2997bce633 __clone (libc.so.6 + 0x102633)

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Reading symbols from /usr/bin/xfsettingsd...
[New LWP 133959]
[New LWP 133960]
[New LWP 133961]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/usr/lib/libthread_db.so.1".
Core was generated by `xfsettingsd --replace --no-daemon'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x00007f2997bc3517 in __GI___poll (fds=0x7ffe3de37478, nfds=1, timeout=-1) at /home/user/build/1packages/4used/glibc/makepkg_pacman/glibc/src/glibc/sysdeps/unix/sysv/linux/poll.c:29
29	  return SYSCALL_CANCEL (poll, fds, nfds, timeout);
[Current thread is 1 (Thread 0x7f2994a739c0 (LWP 133959))]

(here, attached as file: thread apply all bt full)


(gdb) bt2
executing: 'frame apply all -q frame'
#0  0x00007f2997bc3517 in __GI___poll (fds=0x7ffe3de37478, nfds=1, timeout=-1) at /home/user/build/1packages/4used/glibc/makepkg_pacman/glibc/src/glibc/sysdeps/unix/sysv/linux/poll.c:29
29	  return SYSCALL_CANCEL (poll, fds, nfds, timeout);
#1  0x00007f299722963b in ?? () from /usr/lib/libxcb.so.1
#2  0x00007f299722b08f in ?? () from /usr/lib/libxcb.so.1
#3  0x00007f299722b203 in xcb_wait_for_reply64 () from /usr/lib/libxcb.so.1
#4  0x00007f2998007269 in _XReply () from /usr/lib/libX11.so.6
#5  0x00007f2998002bff in XSync () from /usr/lib/libX11.so.6
#6  0x00007f299831af97 in gdk_x11_display_error_trap_pop_internal (display=display@entry=0x55ca8e6850e0 [GdkX11Display], need_code=need_code@entry=1) at ../gtk/gdk/x11/gdkdisplay-x11.c:2883
2883	          XSync (display_x11->xdisplay, False);
#7  0x00007f29983203f9 in gdk_x11_display_error_trap_pop (display=display@entry=0x55ca8e6850e0 [GdkX11Display]) at ../gtk/gdk/x11/gdkdisplay-x11.c:2976
2976	  return gdk_x11_display_error_trap_pop_internal (display, TRUE);
#8  0x00007f2998e0e6fe in xfce_shortcuts_grabber_grab (grabber=<optimized out>, key=<optimized out>, grab=grab@entry=1) at xfce-shortcuts-grabber.c:344
344	          if (gdk_x11_display_error_trap_pop (display))
#9  0x00007f2998e0e791 in grab_key (shortcut=<optimized out>, key=<optimized out>, grabber=<optimized out>) at xfce-shortcuts-grabber.c:185
185	  xfce_shortcuts_grabber_grab (grabber, key, TRUE);
#10 0x00007f2997d3b352 in g_hash_table_foreach (hash_table=0x55ca8e6f4de0 = {...}, func=0x7f2998e0e780 <grab_key>, user_data=0x55ca8e7046a0) at ../glib/glib/ghash.c:2065
2065	../glib/glib/ghash.c: No such file or directory.
#11 0x00007f2997e07534 in _g_closure_invoke_va (param_types=0x0, n_params=<optimized out>, args=0x7ffe3de37a60, instance=0x55ca8e6b9100, return_value=0x0, closure=0x55ca8e7ea140) at ../glib/gobject/gclosure.c:873
873	../glib/gobject/gclosure.c: No such file or directory.
#12 g_signal_emit_valist (instance=instance@entry=0x55ca8e6b9100, signal_id=signal_id@entry=105, detail=detail@entry=0, var_args=var_args@entry=0x7ffe3de37a60) at ../glib/gobject/gsignal.c:3407
3407	../glib/gobject/gsignal.c: No such file or directory.
#13 0x00007f2997e0858d in g_signal_emit_by_name (instance=<optimized out>, detailed_signal=0x7f299837ef8a "keys_changed") at ../glib/gobject/gsignal.c:3594
3594	in ../glib/gobject/gsignal.c
#14 0x00007f299832357b in gdk_x11_display_translate_event (translator=<optimized out>, display=0x55ca8e6850e0 [GdkX11Display], event=0x55ca8e706030, xevent=0x7ffe3de37ca0) at ../gtk/gdk/x11/gdkdisplay-x11.c:1247
1247		      _gdk_x11_keymap_keys_changed (display);
#15 0x00007f2998319e67 in _gdk_x11_event_translator_translate (translator=0x55ca8e6850e0, display=0x55ca8e6850e0 [GdkX11Display], xevent=xevent@entry=0x7ffe3de37ca0) at ../gtk/gdk/x11/gdkeventtranslator.c:51
51	  if ((iface->translate_event) (translator, display, event, xevent))
#16 0x00007f299831a2f3 in gdk_event_source_translate_event (xevent=0x7ffe3de37ca0, event_source=0x55ca8e6abf70) at ../gtk/gdk/x11/gdkeventsource.c:243
243	          event = _gdk_x11_event_translator_translate (translator,
#17 _gdk_x11_display_queue_events (display=0x55ca8e6850e0 [GdkX11Display]) at ../gtk/gdk/x11/gdkeventsource.c:341
341	      event = gdk_event_source_translate_event (event_source, &xevent);
#18 0x00007f299837197b in gdk_display_get_event (display=0x55ca8e6850e0 [GdkX11Display]) at ../gtk/gdk/gdkdisplay.c:441
441	    GDK_DISPLAY_GET_CLASS (display)->queue_events (display);
#19 0x00007f2998319ef2 in gdk_event_source_dispatch (source=<optimized out>, callback=<optimized out>, user_data=<optimized out>) at ../gtk/gdk/x11/gdkeventsource.c:363
363	  event = gdk_display_get_event (display);
#20 0x00007f2997d2b32d in g_main_dispatch (context=0x55ca8e6aada0) at ../glib/glib/gmain.c:3309
3309	../glib/glib/gmain.c: No such file or directory.
#21 g_main_context_dispatch (context=context@entry=0x55ca8e6aada0) at ../glib/glib/gmain.c:3974
3974	in ../glib/glib/gmain.c
#22 0x00007f2997d2d388 in g_main_context_iterate (context=0x55ca8e6aada0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/glib/gmain.c:4047
4047	in ../glib/glib/gmain.c
#23 0x00007f2997d2e403 in g_main_loop_run (loop=loop@entry=0x55ca8e703d20) at ../glib/glib/gmain.c:4241
4241	in ../glib/glib/gmain.c
#24 0x00007f299866142d in gtk_main () at ../gtk/gtk/gtkmain.c:1328
1328	      g_main_loop_run (loop);
#25 0x000055ca8d0fe95a in main (argc=<optimized out>, argv=<optimized out>) at main.c:359
359	    gtk_main();



(gdb) bt3
executing: 'frame apply all list *$pc' (but line numbers are a bit innacurate!)
#0  0x00007f2997bc3517 in __GI___poll (fds=0x7ffe3de37478, nfds=1, timeout=-1) at /home/user/build/1packages/4used/glibc/makepkg_pacman/glibc/src/glibc/sysdeps/unix/sysv/linux/poll.c:29
0x7f2997bc3517 is in __GI___poll (/home/user/build/1packages/4used/glibc/makepkg_pacman/glibc/src/glibc/sysdeps/unix/sysv/linux/poll.c:29).
24	
25	int
26	__poll (struct pollfd *fds, nfds_t nfds, int timeout)
27	{
28	#ifdef __NR_poll
29	  return SYSCALL_CANCEL (poll, fds, nfds, timeout);
30	#else
31	  struct timespec timeout_ts;
32	  struct timespec *timeout_ts_p = NULL;
33	
#1  0x00007f299722963b in ?? () from /usr/lib/libxcb.so.1
#2  0x00007f299722b08f in ?? () from /usr/lib/libxcb.so.1
#3  0x00007f299722b203 in xcb_wait_for_reply64 () from /usr/lib/libxcb.so.1
#4  0x00007f2998007269 in _XReply () from /usr/lib/libX11.so.6
#5  0x00007f2998002bff in XSync () from /usr/lib/libX11.so.6
#6  0x00007f299831af97 in gdk_x11_display_error_trap_pop_internal (display=display@entry=0x55ca8e6850e0 [GdkX11Display], need_code=need_code@entry=1) at ../gtk/gdk/x11/gdkdisplay-x11.c:2883
0x7f299831af97 is in gdk_x11_display_error_trap_pop_internal (../gtk/gdk/x11/gdkdisplay-x11.c:2886).
2881	      if ((next_sequence - 1) != processed_sequence)
2882	        {
2883	          XSync (display_x11->xdisplay, False);
2884	        }
2885	
2886	      result = trap->error_code;
2887	    }
2888	  else
2889	    {
2890	      result = Success;
#7  0x00007f29983203f9 in gdk_x11_display_error_trap_pop (display=display@entry=0x55ca8e6850e0 [GdkX11Display]) at ../gtk/gdk/x11/gdkdisplay-x11.c:2976
0x7f29983203f9 is in gdk_x11_display_error_trap_pop (../gtk/gdk/x11/gdkdisplay-x11.c:2976).
2971	gint
2972	gdk_x11_display_error_trap_pop (GdkDisplay *display)
2973	{
2974	  g_return_val_if_fail (GDK_IS_X11_DISPLAY (display), Success);
2975	
2976	  return gdk_x11_display_error_trap_pop_internal (display, TRUE);
2977	}
2978	
2979	/**
2980	 * gdk_x11_display_error_trap_pop_ignored:
#8  0x00007f2998e0e6fe in xfce_shortcuts_grabber_grab (grabber=<optimized out>, key=<optimized out>, grab=grab@entry=1) at xfce-shortcuts-grabber.c:344
0x7f2998e0e6fe is in xfce_shortcuts_grabber_grab (xfce-shortcuts-grabber.c:290).
285	    }
286	
287	  numlock_modifier =
288	    XkbKeysymToModifiers (GDK_DISPLAY_XDISPLAY (display), GDK_KEY_Num_Lock);
289	
290	  for (i = 0; i < n_keys; i ++)
291	    {
292	      /* Grab all hardware keys generating keyval */
293	
294	      TRACE ("Keycode: %d", keys[i].keycode);
#9  0x00007f2998e0e791 in grab_key (shortcut=<optimized out>, key=<optimized out>, grabber=<optimized out>) at xfce-shortcuts-grabber.c:185
0x7f2998e0e791 is in grab_key (xfce-shortcuts-grabber.c:186).
181	grab_key (const gchar          *shortcut,
182	          XfceKey              *key,
183	          XfceShortcutsGrabber *grabber)
184	{
185	  xfce_shortcuts_grabber_grab (grabber, key, TRUE);
186	  return FALSE;
187	}
188	
189	
190	
#10 0x00007f2997d3b352 in g_hash_table_foreach (hash_table=0x55ca8e6f4de0 = {...}, func=0x7f2998e0e780 <grab_key>, user_data=0x55ca8e7046a0) at ../glib/glib/ghash.c:2065
0x7f2997d3b352 is in g_hash_table_foreach (../glib/glib/ghash.c:2068).
2063	../glib/glib/ghash.c: No such file or directory.
#11 0x00007f2997e07534 in _g_closure_invoke_va (param_types=0x0, n_params=<optimized out>, args=0x7ffe3de37a60, instance=0x55ca8e6b9100, return_value=0x0, closure=0x55ca8e7ea140) at ../glib/gobject/gclosure.c:873
0x7f2997e07534 is in g_signal_emit_valist (../glib/gobject/gclosure.c:294).
289	../glib/gobject/gclosure.c: No such file or directory.
#12 g_signal_emit_valist (instance=instance@entry=0x55ca8e6b9100, signal_id=signal_id@entry=105, detail=detail@entry=0, var_args=var_args@entry=0x7ffe3de37a60) at ../glib/gobject/gsignal.c:3407
0x7f2997e07534 is in g_signal_emit_valist (../glib/gobject/gclosure.c:294).
289	in ../glib/gobject/gclosure.c
#13 0x00007f2997e0858d in g_signal_emit_by_name (instance=<optimized out>, detailed_signal=0x7f299837ef8a "keys_changed") at ../glib/gobject/gsignal.c:3594
0x7f2997e0858d is in g_signal_emit_by_name (../glib/gobject/gsignal.c:3595).
3590	../glib/gobject/gsignal.c: No such file or directory.
#14 0x00007f299832357b in gdk_x11_display_translate_event (translator=<optimized out>, display=0x55ca8e6850e0 [GdkX11Display], event=0x55ca8e706030, xevent=0x7ffe3de37ca0) at ../gtk/gdk/x11/gdkdisplay-x11.c:1247
0x7f299832357b is in gdk_x11_display_translate_event (../gtk/gdk/x11/gdkdisplay-x11.c:1263).
1258	#endif
1259	        return_val = FALSE;
1260	    }
1261	
1262	 done:
1263	  if (return_val)
1264	    {
1265	      if (event->any.window)
1266		g_object_ref (event->any.window);
1267	    }
#15 0x00007f2998319e67 in _gdk_x11_event_translator_translate (translator=0x55ca8e6850e0, display=0x55ca8e6850e0 [GdkX11Display], xevent=xevent@entry=0x7ffe3de37ca0) at ../gtk/gdk/x11/gdkeventtranslator.c:51
0x7f2998319e67 is in _gdk_x11_event_translator_translate (../gtk/gdk/x11/gdkeventtranslator.c:51).
46	  if (!iface->translate_event)
47	    return NULL;
48	
49	  event = gdk_event_new (GDK_NOTHING);
50	
51	  if ((iface->translate_event) (translator, display, event, xevent))
52	    return event;
53	
54	  gdk_event_free (event);
55	
#16 0x00007f299831a2f3 in gdk_event_source_translate_event (xevent=0x7ffe3de37ca0, event_source=0x55ca8e6abf70) at ../gtk/gdk/x11/gdkeventsource.c:243
0x7f299831a2f3 is in _gdk_x11_display_queue_events (../gtk/gdk/x11/gdkeventsource.c:243).
238	      while (list && !event)
239	        {
240	          GdkEventTranslator *translator = list->data;
241	
242	          list = list->next;
243	          event = _gdk_x11_event_translator_translate (translator,
244	                                                       event_source->display,
245	                                                       xevent);
246	        }
247	    }
#17 _gdk_x11_display_queue_events (display=0x55ca8e6850e0 [GdkX11Display]) at ../gtk/gdk/x11/gdkeventsource.c:341
0x7f299831a2f3 is in _gdk_x11_display_queue_events (../gtk/gdk/x11/gdkeventsource.c:243).
238	      while (list && !event)
239	        {
240	          GdkEventTranslator *translator = list->data;
241	
242	          list = list->next;
243	          event = _gdk_x11_event_translator_translate (translator,
244	                                                       event_source->display,
245	                                                       xevent);
246	        }
247	    }
#18 0x00007f299837197b in gdk_display_get_event (display=0x55ca8e6850e0 [GdkX11Display]) at ../gtk/gdk/gdkdisplay.c:441
0x7f299837197b is in gdk_display_get_event (../gtk/gdk/gdkevents.c:242).
237	_gdk_event_unqueue (GdkDisplay *display)
238	{
239	  GdkEvent *event = NULL;
240	  GList *tmp_list;
241	
242	  tmp_list = _gdk_event_queue_find_first (display);
243	
244	  if (tmp_list)
245	    {
246	      event = tmp_list->data;
#19 0x00007f2998319ef2 in gdk_event_source_dispatch (source=<optimized out>, callback=<optimized out>, user_data=<optimized out>) at ../gtk/gdk/x11/gdkeventsource.c:363
0x7f2998319ef2 is in gdk_event_source_dispatch (../gtk/gdk/x11/gdkeventsource.c:365).
360	
361	  gdk_threads_enter ();
362	
363	  event = gdk_display_get_event (display);
364	
365	  if (event)
366	    {
367	      _gdk_event_emit (event);
368	
369	      gdk_event_free (event);
#20 0x00007f2997d2b32d in g_main_dispatch (context=0x55ca8e6aada0) at ../glib/glib/gmain.c:3309
0x7f2997d2b32d is in g_main_context_dispatch (../glib/glib/gmain.c:3309).
3304	../glib/glib/gmain.c: No such file or directory.
#21 g_main_context_dispatch (context=context@entry=0x55ca8e6aada0) at ../glib/glib/gmain.c:3974
0x7f2997d2b32d is in g_main_context_dispatch (../glib/glib/gmain.c:3309).
3304	in ../glib/glib/gmain.c
#22 0x00007f2997d2d388 in g_main_context_iterate (context=0x55ca8e6aada0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/glib/gmain.c:4047
0x7f2997d2d388 is in g_main_context_iterate (../glib/glib/gmain.c:4047).
4042	in ../glib/glib/gmain.c
#23 0x00007f2997d2e403 in g_main_loop_run (loop=loop@entry=0x55ca8e703d20) at ../glib/glib/gmain.c:4241
0x7f2997d2e403 is in g_main_loop_run (../glib/glib/gmain.c:4240).
4235	in ../glib/glib/gmain.c
#24 0x00007f299866142d in gtk_main () at ../gtk/gtk/gtkmain.c:1328
0x7f299866142d is in gtk_main (../gtk/gtk/gtkmain.c:1329).
1324	
1325	  if (g_main_loop_is_running (main_loops->data))
1326	    {
1327	      gdk_threads_leave ();
1328	      g_main_loop_run (loop);
1329	      gdk_threads_enter ();
1330	
1331	      G_GNUC_BEGIN_IGNORE_DEPRECATIONS;
1332	      gdk_flush ();
1333	      G_GNUC_END_IGNORE_DEPRECATIONS;
#25 0x000055ca8d0fe95a in main (argc=<optimized out>, argv=<optimized out>) at main.c:359
0x55ca8d0fe95a is in main (main.c:362).
357	    }
358	
359	    gtk_main();
360	
361	    /* release the sub daemons */
362	    UNREF_GOBJECT(s_data.xsettings_helper);
363	
364	#ifdef HAVE_XRANDR
365	    UNREF_GOBJECT (s_data.displays_helper);
366	#endif
(gdb) 


note that alt+f1, while inside X, used to be assigned to run 'xfce4-popup-applicationsmenu' but during the above repro. alt+f5 was assigned to it instead, so alt+f1 should be free(as it has no effect when pressed even now)

Is there some kind of race condition happening? Hopefully the above will help find it.
Comment 1 Theo Linkspfeifer editbugs 2020-04-22 18:58:36 CEST 
Is this issue maybe triggered by xmodmap? See bug 16736.
Comment 2 Theo Linkspfeifer editbugs 2020-04-22 23:10:22 CEST 
Bug 15032 may be relevant also.
Comment 3 inactive 2020-04-23 00:01:22 CEST 
Created attachment 9781 
my ~/.Xmodmap

(In reply to Theo Linkspfeifer from comment #1)
> Is this issue maybe triggered by xmodmap? See bug 16736.

yes, that happens and it takes 6 second for the high cpu usage to finish.

Thank you for telling me about that.

bug 15032 seems to also apply to me... I'll look further into its workaround(s).
Comment 4 inactive 2020-04-23 00:24:49 CEST 
Can confirm that patch/workaround from https://bugzilla.xfce.org/show_bug.cgi?id=15032#c4  does mitigate the issue for me:
$ xmodmap ~/.Xmodmap
only has high usage for 1 second in processes: firefox, Xorg and xfwm4

if I do the ctrl+alt+F2, wait, alt+f1 to get back to X, then after like a 3 second freeze of 'top' (seen inside xfce4-terminal) I can see xfwm4 go back down from apparently being high cpu usage during the freeze, and then I see only Xorg (60%), firefox (65%) constantly for 20 or more seconds.

so it's different and a bit better.

local/libxfce4util 4.15.0.r6.g46c03ca-1
local/xfce4-settings 4.15.0.r96.gdb9f0196-1
Comment 5 Theo Linkspfeifer editbugs 2020-05-07 20:33:31 CEST 
> and then I see only Xorg (60%), firefox (65%) constantly for 20 or more seconds.
Is this a new behavior caused by the patch?
Comment 6 Theo Linkspfeifer editbugs 2020-05-08 16:24:46 CEST 
So, we still need to understand why the "New keyboard detected" message is spammed:

xfce4-settings(keyboard-layout): New keyboard detected; restoring XKB settings.
xfce4-settings(keyboard-layout): spawning "xmodmap /home/user/.Xmodmap"

Furthermore, we got this xfconf related error:
GDBus.Error:org.xfce.Xfconf.Error.PropertyNotFound: Property "/Default/XkbModel" does not exist on channel "keyboard-layout"
Comment 7 Git Bot editbugs 2020-05-28 23:18:27 CEST 
-- GitLab Migration Automatic Message --

This bug has been migrated to xfce.org's GitLab instance and has been closed from further activity.

You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.xfce.org/xfce/xfce4-settings/-/issues/168.

Please create an account or use an existing account on one of our supported OAuth providers. 

If you want to fork to submit patches and merge requests please continue reading here: https://docs.xfce.org/contribute/dev/git/start#gitlab_forks_and_merge_requests

Also feel free to reach out to us on the mailing list https://mail.xfce.org/mailman/listinfo/xfce4-dev

Bug #16737

Reported by:
inactive
Reported on: 2020-04-22
Last modified on: 2020-05-28

People

Assignee:
Xfce Bug Triage
CC List:
2 users

Version

Version:
4.15.0
Target Milestone:
Xfce 4.14

Attachments

thread apply all bt full (26.45 KB, text/x-log)
2020-04-22 12:33 CEST , inactive 		no flags
my ~/.Xmodmap (1.12 KB, text/plain)
2020-04-23 00:01 CEST , inactive 		no flags

Additional information