[Bug 2042706] Re: Kubuntu 23.10 freezes

[Chris Guiver]

Thank you for taking the time to report this bug and helping to make
Ubuntu better.

Bug reporting is about finding & fixing problems thus preventing future
users from hitting the same bug.

I suspect a Support site would be more appropriate, eg.
https://answers.launchpad.net/ubuntu. You can also find help with your
problem in the support forum of your local Ubuntu community
http://loco.ubuntu.com/ or asking at https://askubuntu.com or
https://ubuntuforums.org, or for more support options please look at
https://discourse.ubuntu.com/t/community-support/709


If you upgraded to (k)Ubuntu 23.10 and rebooted & were able to login, then the ubuntu-release-upgrader package this bug has been filed against is no longer involved, and from your description, this reads as a support issue more than a bug report. This report can be converted to a question (making it about support) and even returned to bug report if after support it does look like you've discovered a bug, but I suggest seeking support first.  I've thus changed status to "incomplete".

IO error would imply a problem that needs exploration; if you can get
SysRq responses then its not a crash/freeze of the base system, maybe
free of GUI/or display output only. You can explore systemd logs
(journalctl) & look for clues (dmesg being an example of a command only
showing details of current boot thus won't be helpful if you've
rebooted). This though is support related.

I'll change package to 'linux' due to it working with older 6.2 kernel &
reported issue only when using newer 6.5 kernel.


Please execute the following command only once, as it will automatically
gather debugging information, in a terminal:

apport-collect 2042706

When reporting bugs in the future please use apport by using 'ubuntu-
bug' and the name of the package affected. You can learn more about this
functionality at https://wiki.ubuntu.com/ReportingBugs.

** Changed in: ubuntu-release-upgrader (Ubuntu)
       Status: New => Incomplete

** Package changed: ubuntu-release-upgrader (Ubuntu) => linux (Ubuntu)

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https://bugs.launchpad.net/bugs/2042706

Title:
  Kubuntu 23.10 freezes

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  I have upgraded from Kubuntu 23.04 to Kubuntu 23.10.

  After working for 2-7 minutes, everything becomes extremely
  unresponsive and freezes afterwards. The screen goes black (as if
  graphical shell has crashed and I am in the terminal). However, the
  whole system remains unresponsive. I cannot switch between terminals
  too (Ctrl+Alt+F<num>)

  There was one symptom. When I was working in a Konsole window, and it
  went unresponsive. Then I managed to launch another window, and every
  single command returned "Input/output error" e.g.:

  $ ls
  bash: /usr/bin/ls: Input/output error 

  I noticed I can work around the issue by switching from the 6.5.0
  kernel to the older 6.2.0 one which was left from Kubuntu 23.04.

  The exact kernel package versions are:
  * linux-image-6.5.0-10-generic
  * linux-image-6.2.0-36-generic

  How can I debug the issue?

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