Public bug reported: == Comment: #0 - Breno Leitao <[email protected]> - 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/ ** Affects: ubuntu-power-systems Importance: Undecided Assignee: Canonical Kernel Team (canonical-kernel-team) Status: New ** Affects: linux (Ubuntu) Importance: Undecided Assignee: Ubuntu on IBM Power Systems Bug Triage (ubuntu-power-triage) Status: New ** Tags: architecture-ppc64le bugnameltc-156112 severity-medium targetmilestone-inin--- ** Tags added: architecture-ppc64le bugnameltc-156112 severity-medium targetmilestone-inin--- ** 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 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: New Status in linux package in Ubuntu: New Bug description: == Comment: #0 - Breno Leitao <[email protected]> - 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 -- Mailing list: https://launchpad.net/~kernel-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
