Public bug reported:
Our arm64 kpti backport is missing a series that disables KPTI on ThunderX
platforms. KPTI is not necessary on this system, and it can lead to icache
corruption:
http://lists.infradead.org/pipermail/linux-arm-kernel/2018-January/556304.html
** Affects: linux (Ubuntu)
Importance: Undecided
Status: Confirmed
** Changed in: linux (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1749776
Title:
kpti must be disabled on ThunderX systems
Status in linux package in Ubuntu:
Confirmed
Bug description:
Our arm64 kpti backport is missing a series that disables KPTI on ThunderX
platforms. KPTI is not necessary on this system, and it can lead to icache
corruption:
http://lists.infradead.org/pipermail/linux-arm-kernel/2018-January/556304.html
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https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1749776/+subscriptions
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