SUMMARY Konsole seems to start the shell with many (sometimes hundreds) file descriptors still open, instead of just 0, 1 and 2. I presume konsole should flag all of its file descriptors with O_CLOSEXEC so that they are not inherited by the shell, but doesn't seem to do so. To be fair, other terminals (but not Gnome terminal) display the same behavior. So the problem of not closing these file descriptors may be upstream from Konsole. STEPS TO REPRODUCE 1. Open konsole 2. ls -l /dev/$$/fd OBSERVED RESULT ``` gusqt@gus-laptop ~ 0 > ls -l /proc/$$/fd total 0 lrwx------ 1 gusqt gusqt 64 Aug 14 19:58 0 -> /dev/pts/4 lrwx------ 1 gusqt gusqt 64 Aug 14 19:59 1 -> /dev/pts/4 lrwx------ 1 gusqt gusqt 64 Aug 14 19:59 10 -> /dev/pts/4 lr-x------ 1 gusqt gusqt 64 Aug 14 19:59 100 -> 'pipe:[180366]' lr-x------ 1 gusqt gusqt 64 Aug 14 19:59 101 -> 'pipe:[180367]' lr-x------ 1 gusqt gusqt 64 Aug 14 19:59 102 -> 'pipe:[173044]' lr-x------ 1 gusqt gusqt 64 Aug 14 19:59 103 -> 'pipe:[174571]' lr-x------ 1 gusqt gusqt 64 Aug 14 19:59 104 -> 'pipe:[194700]' lr-x------ 1 gusqt gusqt 64 Aug 14 19:59 105 -> 'pipe:[198322]' lr-x------ 1 gusqt gusqt 64 Aug 14 19:59 106 -> 'pipe:[174572]' lr-x------ 1 gusqt gusqt 64 Aug 14 19:59 107 -> 'pipe:[174601]' lr-x------ 1 gusqt gusqt 64 Aug 14 19:59 108 -> 'pipe:[174602]' lr-x------ 1 gusqt gusqt 64 Aug 14 19:59 109 -> 'pipe:[174603]' lr-x------ 1 gusqt gusqt 64 Aug 14 19:59 110 -> 'pipe:[174604]' lr-x------ 1 gusqt gusqt 64 Aug 14 19:59 111 -> 'pipe:[174633]' lr-x------ 1 gusqt gusqt 64 Aug 14 19:59 112 -> 'pipe:[174634]' lr-x------ 1 gusqt gusqt 64 Aug 14 19:59 113 -> 'pipe:[174635]' lr-x------ 1 gusqt gusqt 64 Aug 14 19:59 114 -> 'pipe:[176160]' lr-x------ 1 gusqt gusqt 64 Aug 14 19:59 115 -> 'pipe:[176161]' lr-x------ 1 gusqt gusqt 64 Aug 14 19:59 116 -> 'pipe:[174653]' lr-x------ 1 gusqt gusqt 64 Aug 14 19:59 117 -> 'pipe:[174654]' lr-x------ 1 gusqt gusqt 64 Aug 14 19:59 118 -> 'pipe:[174655]' lr-x------ 1 gusqt gusqt 64 Aug 14 19:59 119 -> 'pipe:[187829]' lr-x------ 1 gusqt gusqt 64 Aug 14 19:59 120 -> 'pipe:[187830]' lr-x------ 1 gusqt gusqt 64 Aug 14 19:59 121 -> 'pipe:[198323]' lr-x------ 1 gusqt gusqt 64 Aug 14 19:59 122 -> 'pipe:[198324]' lr-x------ 1 gusqt gusqt 64 Aug 14 19:59 123 -> 'pipe:[199357]' lr-x------ 1 gusqt gusqt 64 Aug 14 19:59 124 -> 'pipe:[199358]' lr-x------ 1 gusqt gusqt 64 Aug 14 19:59 128 -> 'pipe:[199359]' lrwx------ 1 gusqt gusqt 64 Aug 14 19:59 2 -> /dev/pts/4 lr-x------ 1 gusqt gusqt 64 Aug 14 19:59 25 -> 'pipe:[108056]' lr-x------ 1 gusqt gusqt 64 Aug 14 19:59 26 -> 'pipe:[108071]' lr-x------ 1 gusqt gusqt 64 Aug 14 19:59 27 -> 'pipe:[108072]' lrwx------ 1 gusqt gusqt 64 Aug 14 19:59 3 -> /run/user/1008/wayland-0.lock lr-x------ 1 gusqt gusqt 64 Aug 14 19:59 34 -> anon_inode:inotify lrwx------ 1 gusqt gusqt 64 Aug 14 19:59 37 -> '/memfd:pulseaudio (deleted)' lrwx------ 1 gusqt gusqt 64 Aug 14 19:59 4 -> 'socket:[84535]' lr-x------ 1 gusqt gusqt 64 Aug 14 19:59 46 -> 'pipe:[114303]' lr-x------ 1 gusqt gusqt 64 Aug 14 19:59 47 -> 'pipe:[117041]' lr-x------ 1 gusqt gusqt 64 Aug 14 19:59 49 -> 'pipe:[117042]' lrwx------ 1 gusqt gusqt 64 Aug 14 19:59 52 -> 'socket:[87078]' lrwx------ 1 gusqt gusqt 64 Aug 14 19:59 56 -> 'socket:[87080]' lr-x------ 1 gusqt gusqt 64 Aug 14 19:59 70 -> 'pipe:[122857]' lr-x------ 1 gusqt gusqt 64 Aug 14 19:59 72 -> 'pipe:[122858]' lr-x------ 1 gusqt gusqt 64 Aug 14 19:59 73 -> 'pipe:[118579]' lr-x------ 1 gusqt gusqt 64 Aug 14 19:59 75 -> 'pipe:[118580]' lrwx------ 1 gusqt gusqt 64 Aug 14 19:59 81 -> '/memfd:pulseaudio (deleted)' lr-x------ 1 gusqt gusqt 64 Aug 14 19:59 88 -> 'pipe:[154291]' lr-x------ 1 gusqt gusqt 64 Aug 14 19:59 90 -> 'pipe:[154292]' lr-x------ 1 gusqt gusqt 64 Aug 14 19:59 91 -> 'pipe:[174552]' lr-x------ 1 gusqt gusqt 64 Aug 14 19:59 92 -> 'pipe:[175716]' lr-x------ 1 gusqt gusqt 64 Aug 14 19:59 95 -> 'pipe:[173042]' lr-x------ 1 gusqt gusqt 64 Aug 14 19:59 96 -> 'pipe:[173043]' lr-x------ 1 gusqt gusqt 64 Aug 14 19:59 97 -> 'pipe:[194699]' lr-x------ 1 gusqt gusqt 64 Aug 14 19:59 98 -> 'pipe:[175717]' lr-x------ 1 gusqt gusqt 64 Aug 14 19:59 99 -> 'pipe:[175718]' ``` EXPECTED RESULT Only file descriptors 0, 1 and 2, pointing to the console, should be present. For example, something like: ``` gusqt@gus-laptop ~ 2 0 > ls -l /proc/$$/fd total 0 lrwx------ 1 gusqt gusqt 64 Aug 14 20:12 0 -> /dev/pts/5 lrwx------ 1 gusqt gusqt 64 Aug 14 20:12 1 -> /dev/pts/5 lrwx------ 1 gusqt gusqt 64 Aug 14 20:12 2 -> /dev/pts/5 ``` SOFTWARE/OS VERSIONS Linux/KDE Plasma: Arch Linux (available in About System) KDE Plasma Version: 5.22.4 (on wayland) KDE Frameworks Version: Qt Version: 5 ADDITIONAL INFORMATION
On Neon Unstable (Wayland session): paul@desktop:~$ ls -l /proc/$$/fd total 0 lrwx------ 1 paul paul 64 Aug 15 11:59 0 -> /dev/pts/1 lrwx------ 1 paul paul 64 Aug 15 11:59 1 -> /dev/pts/1 lrwx------ 1 paul paul 64 Aug 15 11:59 13 -> 'socket:[37369]' lr-x------ 1 paul paul 64 Aug 15 11:59 17 -> /dev/urandom lrwx------ 1 paul paul 64 Aug 15 11:59 2 -> /dev/pts/1 lrwx------ 1 paul paul 64 Aug 15 11:59 255 -> /dev/pts/1 lrwx------ 1 paul paul 64 Aug 15 11:59 4 -> /run/user/2000/wayland-0.lock lrwx------ 1 paul paul 64 Aug 15 11:59 5 -> 'socket:[36775]' lrwx------ 1 paul paul 64 Aug 15 11:59 51 -> 'socket:[37080]' lrwx------ 1 paul paul 64 Aug 15 11:59 55 -> 'socket:[37082]'
The correct number fds show up. Well, I am not sure why 10 is here in the list, but at least it points to the terminal, so not too concerned. > ls -l /proc/$$/fd total 0 lrwx------. 1 gus gus 64 Feb 21 16:57 0 -> /dev/pts/5 lrwx------. 1 gus gus 64 Feb 21 16:57 1 -> /dev/pts/5 lrwx------. 1 gus gus 64 Feb 21 16:57 10 -> /dev/pts/5 lrwx------. 1 gus gus 64 Feb 21 16:57 2 -> /dev/pts/5