[Bug 1800277] Re: "chmod u-w ~/.ICEauthority" breaks login
Please run this command to send us more information about the system: apport-collect 1800277 ** Changed in: gdm3 (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gdm3 in Ubuntu. https://bugs.launchpad.net/bugs/1800277 Title: "chmod u-w ~/.ICEauthority" breaks login To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1800277/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1800277] Re: "chmod u-w ~/.ICEauthority" breaks login
I can do that if really required, but this is not a bug with my system - it's just the way the system works right now, so I'm suggesting an idea for how we can make it better :) -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gdm3 in Ubuntu. https://bugs.launchpad.net/bugs/1800277 Title: "chmod u-w ~/.ICEauthority" breaks login To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1800277/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1800277] Re: "chmod u-w ~/.ICEauthority" breaks login
Yes, in the least it helps us track the affected release and package versions. -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gdm3 in Ubuntu. https://bugs.launchpad.net/bugs/1800277 Title: "chmod u-w ~/.ICEauthority" breaks login To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1800277/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1800277] Re: "chmod u-w ~/.ICEauthority" breaks login
it's better if bugs are opened with apport so they get proper tagging for the ubuntu version they are reported against, etc, but I don't think it's a requirement for that one -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gdm3 in Ubuntu. https://bugs.launchpad.net/bugs/1800277 Title: "chmod u-w ~/.ICEauthority" breaks login To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1800277/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1800277] Re: "chmod u-w ~/.ICEauthority" breaks login
Ideally that would be reported upstream (https://gitlab.gnome.org/GNOME/gdm/issues/), there is more chance to have one of the project contributors looking at the problem there ** Changed in: gdm3 (Ubuntu) Status: Incomplete => New -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gdm3 in Ubuntu. https://bugs.launchpad.net/bugs/1800277 Title: "chmod u-w ~/.ICEauthority" breaks login To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1800277/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1800277] Re: "chmod u-w ~/.ICEauthority" breaks login
apport information
** Tags added: apport-collected bionic
** Description changed:
= Problem =
It is too easy to make a system unusable.
= Examples
The following commands will all cause subsequent graphical logins to
fail:
== User is returned to login screen ==
- chmod 400 ~/.ICEauthority
- rm ~/.ICEauthority
In this scenario, the user is returned to the login screen with no
indication of what went wrong.
== Session "dead" ==
- chmod 444 ~/.cache
- chmod 000 ~/.config
- chmod 444 ~
- chmod 000 ~
In this scenario, the system just freezes: the cursor is unresponsive
and users will be reaching for the power button.
= Observation =
These scenarios would all be caused by human error.
However, clearly it is possible for the system to detect such issues and
either alert the user to the problem or simply just fix the problem.
This does not happen in Ubuntu 18.04 LTS though.
= Idea =
Have the display manager call a utility prior to executing the users
preferred session. This utility -- which could be a simple shell script
I think ("friendly-session-fixer" maybe? :) -- would do one or both of
the following:
- Perform checks for the issues outlined above warn the user graphically
if any are found.
- Fix any issues found to allow the user to login.
However they are treated, all issues should also be logged in the
journal (could be the user journal, but the system journal may be best
to allow admins to spot such issues being detected more easily?)
= Rationale =
1) All the problems above, although user-generated, are:
- trivially fixable.
- potentially very hard / impossible for a naeve user to debug and resolve.
2) By handling such errors, users won't have a bad experience of Linux
if they inadvertently perturb a critical file.
3) Users will not need to resort to a re-install (which I can imagine
some may have to given the current behaviour).
= Ideas for further checks =
- Check to ensure key files exist and if not, copy them in from /etc/skel/,
etc.
- Check to ensure users home directory is owned by them and not root, etc.
- If the home partition / disk is 100% full, the script could logrotate and
compress the contents of ~/.cache/ ?
= Notes =
- You could argue that the session managers themselves should deal with
- these issues. In some cases that may be a fair comment. However, by
- having a single central check/fix script, the problems can be handled
- centrally without the issue whereby some session managers tolerate
- certain scenarios whereas others don't.
+ You could argue that the session managers themselves should deal with these
issues. In some cases that may be a fair comment. However, by having a single
central check/fix script, the problems can be handled centrally without the
issue whereby some session managers tolerate certain scenarios whereas others
don't.
+ ---
+ ApportVersion: 2.20.9-0ubuntu7
+ Architecture: amd64
+ CurrentDesktop: ubuntu:GNOME
+ DistroRelease: Ubuntu 18.04
+ InstallationDate: Installed on 2018-10-29 (0 days ago)
+ InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
+ Package: gdm3 3.28.0-0ubuntu1
+ PackageArchitecture: amd64
+ ProcEnviron:
+ TERM=xterm-256color
+ PATH=(custom, no user)
+ XDG_RUNTIME_DIR=
+ LANG=en_GB.UTF-8
+ SHELL=/bin/bash
+ ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17
+ Tags: bionic
+ Uname: Linux 4.15.0-20-generic x86_64
+ UpgradeStatus: No upgrade log present (probably fresh install)
+ UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
+ _MarkForUpload: True
** Attachment added: "Dependencies.txt"
https://bugs.launchpad.net/bugs/1800277/+attachment/5206695/+files/Dependencies.txt
--
You received this bug notification because you are a member of Ubuntu
Desktop Bugs, which is subscribed to gdm3 in Ubuntu.
https://bugs.launchpad.net/bugs/1800277
Title:
"chmod u-w ~/.ICEauthority" breaks login
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1800277/+subscriptions
--
desktop-bugs mailing list
desktop-bugs@lists.ubuntu.com
https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1800277] Re: "chmod u-w ~/.ICEauthority" breaks login
apport info added. -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gdm3 in Ubuntu. https://bugs.launchpad.net/bugs/1800277 Title: "chmod u-w ~/.ICEauthority" breaks login To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1800277/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1800277] Re: "chmod u-w ~/.ICEauthority" breaks login
Reported as https://gitlab.gnome.org/GNOME/gdm/issues/438. -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gdm3 in Ubuntu. https://bugs.launchpad.net/bugs/1800277 Title: "chmod u-w ~/.ICEauthority" breaks login To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1800277/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1800277] Re: "chmod u-w ~/.ICEauthority" breaks login
** Description changed:
= Problem =
It is too easy to make a system unusable.
+
+ https://gitlab.gnome.org/GNOME/gdm/issues/438
= Examples
The following commands will all cause subsequent graphical logins to
fail:
== User is returned to login screen ==
- chmod 400 ~/.ICEauthority
- rm ~/.ICEauthority
In this scenario, the user is returned to the login screen with no
indication of what went wrong.
== Session "dead" ==
- chmod 444 ~/.cache
- chmod 000 ~/.config
- chmod 444 ~
- chmod 000 ~
In this scenario, the system just freezes: the cursor is unresponsive
and users will be reaching for the power button.
= Observation =
These scenarios would all be caused by human error.
However, clearly it is possible for the system to detect such issues and
either alert the user to the problem or simply just fix the problem.
This does not happen in Ubuntu 18.04 LTS though.
= Idea =
Have the display manager call a utility prior to executing the users
preferred session. This utility -- which could be a simple shell script
I think ("friendly-session-fixer" maybe? :) -- would do one or both of
the following:
- Perform checks for the issues outlined above warn the user graphically
if any are found.
- Fix any issues found to allow the user to login.
However they are treated, all issues should also be logged in the
journal (could be the user journal, but the system journal may be best
to allow admins to spot such issues being detected more easily?)
= Rationale =
1) All the problems above, although user-generated, are:
- trivially fixable.
- potentially very hard / impossible for a naeve user to debug and resolve.
2) By handling such errors, users won't have a bad experience of Linux
if they inadvertently perturb a critical file.
3) Users will not need to resort to a re-install (which I can imagine
some may have to given the current behaviour).
= Ideas for further checks =
- Check to ensure key files exist and if not, copy them in from /etc/skel/,
etc.
- Check to ensure users home directory is owned by them and not root, etc.
- If the home partition / disk is 100% full, the script could logrotate and
compress the contents of ~/.cache/ ?
= Notes =
You could argue that the session managers themselves should deal with these
issues. In some cases that may be a fair comment. However, by having a single
central check/fix script, the problems can be handled centrally without the
issue whereby some session managers tolerate certain scenarios whereas others
don't.
- ---
+ ---
ApportVersion: 2.20.9-0ubuntu7
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
DistroRelease: Ubuntu 18.04
InstallationDate: Installed on 2018-10-29 (0 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
Package: gdm3 3.28.0-0ubuntu1
PackageArchitecture: amd64
ProcEnviron:
- TERM=xterm-256color
- PATH=(custom, no user)
- XDG_RUNTIME_DIR=
- LANG=en_GB.UTF-8
- SHELL=/bin/bash
+ TERM=xterm-256color
+ PATH=(custom, no user)
+ XDG_RUNTIME_DIR=
+ LANG=en_GB.UTF-8
+ SHELL=/bin/bash
ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17
Tags: bionic
Uname: Linux 4.15.0-20-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
_MarkForUpload: True
--
You received this bug notification because you are a member of Ubuntu
Desktop Bugs, which is subscribed to gdm3 in Ubuntu.
https://bugs.launchpad.net/bugs/1800277
Title:
"chmod u-w ~/.ICEauthority" breaks login
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1800277/+subscriptions
--
desktop-bugs mailing list
desktop-bugs@lists.ubuntu.com
https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1800277] Re: "chmod u-w ~/.ICEauthority" breaks login
Thanks for the info and reporting upstream! ** Changed in: gdm3 (Ubuntu) Importance: Undecided => High ** Changed in: gdm3 (Ubuntu) Status: New => Triaged -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gdm3 in Ubuntu. https://bugs.launchpad.net/bugs/1800277 Title: "chmod u-w ~/.ICEauthority" breaks login To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1800277/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
