Snapdragon 835 Laptop Results: 4.15 boots to the first 4 lines before kernel 4.18 boots most of the kernel, stops for a bit, then suffers with an rshed crash 5.0 boots to the end of the kernel log, then the screen goes blank
Without this patch on the 835 laptops the user sees grub and then nothing and is left sad; however, with this patch the user sees some form of kernel life on the laptops and is left hopeful - which leads them to start looking around for fixes and help with the solution. Additional patches will need to be backported but without this patch it's a non-starter until 5.1 or after. If there is little to no regression risk as this adds a kernel parameter and this is required to enable these platforms to boot, if not other platforms, I would argue to include the patch for at least Disco if not Bionic since random people will attempt to boot the LTS release. Thank you for building the test kernel. -- 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/1814982 Title: efi/arm/arm64: Allow SetVirtualAddressMap() to be omitted Status in linux package in Ubuntu: Confirmed Status in linux source package in Bionic: Confirmed Status in linux source package in Cosmic: Confirmed Status in linux source package in Disco: Confirmed Bug description: [Impact] The Ubuntu kernel is not currently bootable on various arm64 laptops (HP Envy x2, Asus NovaGo, Lenovo Miix 630, Lenovo Yoga C630, Samsung ...) because of EFI memory permissions/restrictions. The reason is explained in the commit supplied below. [Test Case] Install and boot Ubuntu on one of the above arm64 laptops. [Fix] Committed upstream: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=4e46c2a956215482418d7b315749fb1b6c6bc224 [Regression Risk] This commit adds support for an optional kernel command line parameter so there is minimal to no risk. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1814982/+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
