The following commit is now is the Xenial master-next repo:
commit 2ff75eca6b58008b01cb131515fcfb3ab3bb919e
Author: Michael Ellerman <m...@ellerman.id.au>
Date: Thu Jun 22 16:52:51 2017 +1000
powerpc/slb: Force a full SLB flush when we insert for a bad EA
** Also affects: linux (Ubuntu Xenial)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu Xenial)
Importance: Undecided => Medium
** Changed in: linux (Ubuntu Xenial)
Status: New => Triaged
** Changed in: linux (Ubuntu Xenial)
Status: Triaged => Fix Committed
** Changed in: linux (Ubuntu)
Status: Triaged => Fix Committed
** Changed in: ubuntu-power-systems
Status: Triaged => Fix Committed
** Changed in: linux (Ubuntu Xenial)
Assignee: (unassigned) => Joseph Salisbury (jsalisbury)
** Changed in: linux (Ubuntu)
Assignee: Ubuntu on IBM Power Systems Bug Triage (ubuntu-power-triage) =>
Joseph Salisbury (jsalisbury)
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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1700980
Title:
Invalid EA on pre 4.9 kernels
Status in The Ubuntu-power-systems project:
Fix Committed
Status in linux package in Ubuntu:
Fix Committed
Status in linux source package in Xenial:
Fix Committed
Bug description:
== Comment: #0 - Breno Leitao <bren...@br.ibm.com> - 2017-06-28 08:00:40 ==
When a process accesses an invalid EA it results in a SEGV signal being
sent to the process, which typically results in the process being
killed. Process death isn't instantaneous however, the process may catch
the SEGV signal and continue somehow, or the kernel may start writing a
core dump for the process, either of which means it's possible for the
process to be preempted while its processing the SEGV but before it's
been killed.
We need to have this fix on kernel 4.4 and 4.8:
https://patchwork.ozlabs.org/patch/779346/
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu-power-systems/+bug/1700980/+subscriptions
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