[Bug 1718825] Re: [Feature] Cristal Ridge: x86 Process Context IDentifiers (PCID) support for OSV
The changes are too invasive (they will not backport cleanly), they are not stable yet (there are still bugs being found in 4.14-rcX). The performance implications are also not well-documented across the platforms that we care about. The opinion is that it is not practical or a good idea to pursue putting this code back into old distributions, closing this. ** Changed in: intel Status: New => Won't Fix -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1718825 Title: [Feature] Cristal Ridge: x86 Process Context IDentifiers (PCID) support for OSV To manage notifications about this bug go to: https://bugs.launchpad.net/intel/+bug/1718825/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1718825] Re: [Feature] Cristal Ridge: x86 Process Context IDentifiers (PCID) support for OSV
Let's defer to 18.04. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1718825 Title: [Feature] Cristal Ridge: x86 Process Context IDentifiers (PCID) support for OSV To manage notifications about this bug go to: https://bugs.launchpad.net/intel/+bug/1718825/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1718825] Re: [Feature] Cristal Ridge: x86 Process Context IDentifiers (PCID) support for OSV
@Canonical if the backporting works is not easy, we just move it into 18.04. If the backporting is fine for you, just do it. The patches are from outside who is not from Intel. we just find that and list the patches here. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1718825 Title: [Feature] Cristal Ridge: x86 Process Context IDentifiers (PCID) support for OSV To manage notifications about this bug go to: https://bugs.launchpad.net/intel/+bug/1718825/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1718825] Re: [Feature] Cristal Ridge: x86 Process Context IDentifiers (PCID) support for OSV
It's really not clear to me whether some of the changes to arch/x86/mm/tlb.c should be applied without additional prerequisite patches. Can you please advise? Thanks. ** Changed in: linux (Ubuntu) Status: Triaged => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1718825 Title: [Feature] Cristal Ridge: x86 Process Context IDentifiers (PCID) support for OSV To manage notifications about this bug go to: https://bugs.launchpad.net/intel/+bug/1718825/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1718825] Re: [Feature] Cristal Ridge: x86 Process Context IDentifiers (PCID) support for OSV
Thanks If possible,just take it. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1718825 Title: [Feature] Cristal Ridge: x86 Process Context IDentifiers (PCID) support for OSV To manage notifications about this bug go to: https://bugs.launchpad.net/intel/+bug/1718825/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1718825] Re: [Feature] Cristal Ridge: x86 Process Context IDentifiers (PCID) support for OSV
Right away I notice some commits which look to be fixes for commits in this series: f34902c5c6c0 "x86/hibernate/64: Mask off CR3's PCID bits in the saved CR3" c7ad5ad297e6 "x86/mm/64: Initialize CR4.PCIDE early" a2105f8a9c38 "tools headers: Sync cpu features kernel ABI headers with tooling headers" 72c0098d92ce "x86/mm: Reinitialize TLB state on hotplug and resume" -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1718825 Title: [Feature] Cristal Ridge: x86 Process Context IDentifiers (PCID) support for OSV To manage notifications about this bug go to: https://bugs.launchpad.net/intel/+bug/1718825/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1718825] Re: [Feature] Cristal Ridge: x86 Process Context IDentifiers (PCID) support for OSV
** Information type changed from Proprietary to Public ** Also affects: linux (Ubuntu) Importance: Undecided Status: New ** Changed in: linux (Ubuntu) Importance: Undecided => Medium ** Changed in: linux (Ubuntu) Status: New => Triaged ** Changed in: linux (Ubuntu) Assignee: (unassigned) => Seth Forshee (sforshee) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1718825 Title: [Feature] Cristal Ridge: x86 Process Context IDentifiers (PCID) support for OSV To manage notifications about this bug go to: https://bugs.launchpad.net/intel/+bug/1718825/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
