Thanks to Seth Arnold for his advices to use the 'perf' or 'auditd' tools. Inside the above provided '/var/log/audit/audit.log', I do NOT find the 'umask' string.
So, I prefer to begin installing and using the 'perf' tool : $ sudo apt-get install linux-tools-generic Close the graphical session. Record 'umask' for a Gnome session without doing anything --------------------------------------------------------- Switch to a console (tty2), and login. $ sudo perf record -ag -e syscalls:sys_enter_umask Switch to the 'gdm' login screen. Open a Gnome session, then immediately close it. Switch to the console (tty2). Press Ctrl-C. ... (325 samples) $ sudo perf script > gnome-umask.log Record 'umask' for a Gnome session with a Gnome terminal -------------------------------------------------------- $ sudo perf record -ag -e syscalls:sys_enter_umask Switch to the 'gdm' login screen. Open a Gnome session. Inside the Gnome session, open a Gnome terminal with Ctrl-Alt-T. Close the Gnome terminal with Ctrl-D. Close the Gnome session. Switch to the console (tty2). Press (Ctrl C). ... (329 samples) $ sudo perf script > gnome-umask-with-gnome-terminal.log Additional traces triggered by Gnome terminal --------------------------------------------- Following command eases the discovery of the additional traces : $ diff -I '[0-9]* *\[ *[0-9]* *\] *[0-9.]*' gnome-umask.log gnome-umask-with-gnome-terminal.log > systemd-journal 360 [005] 10229.742513: syscalls:sys_enter_umask: mask: > 0x0000003f > f7907 __GI___umask (/lib/x86_64-linux-gnu/libc-2.24.so) > 0 [unknown] ([unknown]) > > systemd-journal 360 [005] 10229.742521: syscalls:sys_enter_umask: mask: > 0x00000012 > f7907 __GI___umask (/lib/x86_64-linux-gnu/libc-2.24.so) > > (l-server) 12464 [003] 10229.742634: syscalls:sys_enter_umask: mask: > 0x00000012 > f7907 __GI___umask (/lib/x86_64-linux-gnu/libc-2.24.so) > 8f2af [unknown] (/lib/systemd/systemd) > > bash 12472 [005] 10229.881381: syscalls:sys_enter_umask: mask: 0x00000007 > f7907 __GI___umask (/lib/x86_64-linux-gnu/libc-2.24.so) > 1e0e1a8 [unknown] ([unknown]) Interpretation of the additional traces triggered by Gnome terminal ------------------------------------------------------------------- The 'bash' trace logically comes from the 'umask 007' command in my '.bashrc' file. Since 0022=0x12, the suspect for 'umask 022' hardcoding is '(l-server)'. -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-terminal in Ubuntu. https://bugs.launchpad.net/bugs/1685754 Title: gnome-terminal unduly forces umask=0022 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-terminal/+bug/1685754/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
