This bug was fixed in the package linux - 4.15.0-23.25
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linux (4.15.0-23.25) bionic; urgency=medium
* linux: 4.15.0-23.25 -proposed tracker (LP: #1772927)
* arm64 SDEI support needs trampoline code for KPTI (LP: #1768630)
- arm64: mmu: add the entry trampolines start/end
This bug was fixed in the package linux - 4.15.0-23.25
---
linux (4.15.0-23.25) bionic; urgency=medium
* linux: 4.15.0-23.25 -proposed tracker (LP: #1772927)
* arm64 SDEI support needs trampoline code for KPTI (LP: #1768630)
- arm64: mmu: add the entry trampolines start/end
I'm unable to explicitly verify this, as we don't have any systems that
support SDEI - and if we did, they'd probably boot in ACPI mode. I have
booted the updated kernel on an arm64 system though, and observed no
regressions.
** Tags removed: verification-needed-bionic
** Tags added:
This bug is awaiting verification that the kernel in -proposed solves
the problem. Please test the kernel and update this bug with the
results. If the problem is solved, change the tag 'verification-needed-
bionic' to 'verification-done-bionic'. If the problem still exists,
change the tag
** Changed in: linux (Ubuntu Bionic)
Status: In Progress => Fix Committed
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https://bugs.launchpad.net/bugs/1768663
Title:
Fix initialization failure detection in
** Description changed:
[Impact]
A crash may occur on Device-tree based systems w/ SDEI support, because of an
ignored initialization failure.
[Test Case]
No known test case.
[Regression Risk]
- I'm unaware of any such system in the field - most SDEI-based systems will
likely be
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