This bug is awaiting verification that the linux-azure/5.15.0-1092.101 kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-jammy-linux-azure' to 'verification-done-jammy- linux-azure'. If the problem still exists, change the tag 'verification- needed-jammy-linux-azure' to 'verification-failed-jammy-linux-azure'.
If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you! ** Tags added: kernel-spammed-jammy-linux-azure-v2 verification-needed-jammy-linux-azure -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-azure in Ubuntu. https://bugs.launchpad.net/bugs/2114218 Title: [Arm64] High reboot time for 96 core Linux VMs Status in linux-azure package in Ubuntu: Invalid Status in linux-azure source package in Jammy: Fix Committed Status in linux-azure source package in Noble: Fix Committed Status in linux-azure source package in Oracular: Invalid Status in linux-azure source package in Plucky: Invalid Status in linux-azure source package in Questing: Invalid Bug description: SRU Justification [ Impact ] * Microsoft request to fix long boot times on arm64 VMs with 96 cores. [ Fix ] * Clean cherry-pick of the following patches from upstream: * 5c63db59c5f8: "arm64: mm: Don't remap pgtables per-cont(pte|pmd) block" * 1fcb7cea8a5f: "arm64: mm: Batch dsb and isb when populating pgtables" * 0e9df1c905d8: "arm64: mm: Don't remap pgtables for allocate vs populat" [ Test Plan ] * Compile tested * Microsoft to test further [ Where problems could occur ] * Changes made to memory-management, which could have impacts across the memory subsystems. * Backport involved stripping out portions of 5-level paging, which was missing prerequisite commits. This has been validated, but if logic was not well-separated in the upstream commits, the changes for present paging might have some reliance on the 5-level paging changes. [ Other info ] * SF#00412644 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-azure/+bug/2114218/+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
