Public bug reported:
[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.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: Incomplete
** Affects: linux (Ubuntu Zesty)
Importance: Undecided
Status: Incomplete
** Affects: linux (Ubuntu Artful)
Importance: Undecided
Status: Incomplete
** Also affects: linux (Ubuntu Artful)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Zesty)
Importance: Undecided
Status: New
** Summary changed:
- Falkor erratum 1041 needs wworkaround
+ Falkor erratum 1041 needs workaround
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Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1738497
Title:
Falkor erratum 1041 needs workaround
Status in linux package in Ubuntu:
Incomplete
Status in linux source package in Zesty:
Incomplete
Status in linux source package in Artful:
Incomplete
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.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1738497/+subscriptions
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