This is not just Xfwm4 bug - all components are affected: Strace showed: open("/home/vas/.icons/elementary-xfce/devices/16/gtk-harddisk.png", O_RDONLY|O_NOATIME) = -1 EPERM (Operation not permitted) open("/home/vas/.icons/elementary-xfce/devices/16/gtk-harddisk.png", O_RDONLY) = 21 Every "open" is doing twice, because Xfce starts under user, but owner of files - root, and open with O_NOATIME = EPERM (Operation not permitted) Please do something with it - Xfce is wasting CPU and buttery for nothing. Xubuntu 14.04 with updates uname -a = Linux xub-14-04 3.13.0-24-generic #47-Ubuntu SMP Fri May 2 23:30:00 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux Thanks
This bug is invalid, it's not xfwm4 nor Xfce, it's GTK+ doing this.
Thank you for explanation. I will address this bug to GTK.