Hi, Dong! Would you mind trying again? Perhaps our mirrors weren't synced when you tried, but right now I can see the -216 kernel in -proposed. As an alternative, you could also trying enabling this PPA https://launchpad.net/~canonical-kernel-team/+archive/ubuntu/proposed, which has the same kernel from -proposed.
Thanks for testing! -- 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/2067864 Title: iommu/arm-smmu-v3: Don't reserve implementation defined register space Status in linux package in Ubuntu: New Status in linux-aws package in Ubuntu: New Status in linux source package in Focal: In Progress Status in linux-aws source package in Focal: Fix Released Bug description: SRU Justification [Impact] In order to solve boot issues with new instance types running the 5.4 kernels, AWS has requested a backport of upstream commit 52f3fab0067d ("iommu/arm-smmu-v3: Don't reserve implementation defined register space"). [Fix] There was a conflict when adding arm_smmu_ioremap() due to the current context missing ab246774713e ("iommu/arm-smmu-v3: Unregister IOMMU and bus ops on device removal"). [Test] It's been tested that the new instances can boot successfully with the AWS 5.4 kernels with this patch applied. [Where problems could occur] This touches probing of the ARM SMMUv3 driver, which might lead to boot failures or system instability. [Other info] SF #00407928 ---------------------------- Original bug report ---------------------------- can ubuntu 20.04 kernel backport this commit：https://github.com/torvalds/linux/commit/52f3fab0067d6fa9e99c1b7f63265dd48ca76046 to avoid resource reservation conflicts. we met this problem in aliyun ebmc8y instance type To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2067864/+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
