This bug was nominated against a series that is no longer supported, ie
artful. The bug task representing the artful nomination is being closed
as Won't Fix.
This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.
** Changed in: linux (Ubuntu Artful)
Status: New => Won't Fix
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https://bugs.launchpad.net/bugs/1545542
Title:
Enable arm64 emulation of removed ARMv7 instructions
Status in linux package in Ubuntu:
Fix Released
Status in linux source package in Wily:
Fix Released
Status in linux source package in Xenial:
Fix Released
Status in linux source package in Zesty:
New
Status in linux source package in Artful:
Won't Fix
Status in linux source package in Bionic:
Fix Released
Bug description:
Linux now supports emulation of three deprecated ARMv7 features that
were removed from ARMv8: SWP(B), CP15ISB/DSB/DMB, and SETEND. At least
CP15DMB is used by some armhf archive binaries (notably pandoc), so we
need emulation enabled on the kernels that scalingstack uses.
I haven't checked which version added which, but they appeared some
time between 3.13 and 4.2, and I only care about 4.2 onwards. So
please enable ARMV8_DEPRECATED, SWP_EMULATION, CP15_BARRIER_EMULATION
and SETEND_EMULATION in arm64 kernels for wily onwards.
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