This bug is missing log files that will aid in diagnosing the problem.
While running an Ubuntu kernel (not a mainline or third-party kernel)
please enter the following command in a terminal window:
apport-collect 1948038
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable
to run this command, please add a comment stating that fact and change
the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.
** Changed in: linux (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1948038
Title:
disable CONFIG_KFENCE_STATIC_KEYS in linux 5.15
Status in linux package in Ubuntu:
Incomplete
Status in linux source package in Jammy:
Incomplete
Bug description:
[Impact]
KFENCE devs are changing CONFIG_KFENCE_STATIC_KEYS to be disabled by
default, because it's introducing more problems than benefits:
https://lore.kernel.org/all/20211019102524.2807208-2-el...@google.com/T/#u
This also seems to trigger QEMU bugs during the systemd autopkgtest, like:
https://bugs.launchpad.net/qemu/+bug/1920934
[Test case]
Run systemd autopkgtest.
[Fix]
Disable CONFIG_KFENCE_STATIC_KEYS.
[Regression potential]
We may experience an overall performance regression for not using
static branches in the KFENCE code.
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