Public bug reported: == Comment: #0 - Breno Leitao <[email protected]> - 2017-06-23 13:13:02 == Hello,
This is a patch that we need to have on Zesty, including on the 16.04.3 installer. On POWER9 the ERAT may be incorrect on wakeup from some stop states that lose state. This causes random segvs and illegal instructions when these stop states are enabled. This patch invalidates the ERAT on wakeup on POWER9 to prevent this from causing a problem. URL: https://patchwork.ozlabs.org/patch/780365/ ** Affects: linux (Ubuntu) Importance: Undecided Assignee: Ubuntu on IBM Power Systems Bug Triage (ubuntu-power-triage) Status: New ** Tags: architecture-ppc64 bugnameltc-155996 severity-medium targetmilestone-inin16043 ** Tags added: architecture-ppc64 bugnameltc-155996 severity-medium targetmilestone-inin16043 ** Changed in: ubuntu Assignee: (unassigned) => Ubuntu on IBM Power Systems Bug Triage (ubuntu-power-triage) ** Package changed: ubuntu => linux (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1700521 Title: powerpc: Invalidate ERAT on powersave wakeup for POWER9 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1700521/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
