This bug is awaiting verification that the linux-azure/5.13.0-1022.26 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-impish' to 'verification-done-impish'. If the problem still exists, change the tag 'verification-needed-impish' to 'verification-failed-impish'.
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: verification-needed-impish -- 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/1967166 Title: Azure: not enough RAM under 4GB for CVM Status in linux-azure package in Ubuntu: Fix Released Status in linux-azure source package in Impish: Fix Committed Status in linux-azure source package in Jammy: Fix Released Bug description: SRU Justification [Impact] Can you please include one more patchset for the "no enough RAM under 4GB" issue for the v5.13 kernel (and v5.15 kernel): https://lwn.net/ml/linux-kernel/20220209122302.213882-2-ltyker...@gmail.com/ https://lwn.net/ml/linux-kernel/20220209122302.213882-3-ltyker...@gmail.com/ Without the two patches, currently the 5.13 kernel (and 5.15 kernel) can't boot as a CVM guest on Azure. :-( The background is: currently an Azure host only provides about 900 MB memory below the 4GB boundary while the swiotlb code (which is required by the CVM patchset) needs to allocate memory of a size of MIN(1GB, 6% of the total memory). There will be an Azure host update, with which the host will provide about 3GB memory below the 4GB boundary, but we still need to wait a few more weeks to know the ETA. Currently the above two patches can work around the issue from the guest side. [Test Case] Microsoft tested [Where things could go wrong] These patches could affect non-CVM instances. [Other Info] SF: #00323683 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-azure/+bug/1967166/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
