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 1738497
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
** Changed in: linux (Ubuntu Artful)
Status: New => Incomplete
** Changed in: linux (Ubuntu Zesty)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1738497
Title:
Falkor erratum 1041 needs workaround
Status in linux package in Ubuntu:
In Progress
Status in linux source package in Zesty:
In Progress
Status in linux source package in Artful:
In Progress
Bug description:
[Impact]
A hardware issue can lead to a kernel crash or unexpected behavior.
[Test Case]
The issue presents itself most commonly as a boot-time crash. It doesn't
effect all Falkor CPUs, and only rarely occurs on CPUs that are effected.
[Regression Risk]
The fix is entirely in arm64 code, mitigating the risk to other
architectures. The biggest regression risk is performance, as the workaround
involves adding an instruction barrier prior to disabling the MMU.
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