Public bug reported: [Impact]
Upstream kernels since 5.3 fail to boot on the ASUS WS X299 SAGE motherboard with firmware version 1201. This is the result of an infinite loop while trying to parse a malformed ACPI table. It is suspected to affect other ASUS motherboards, but I have no first hand proof of that. This is particularly troublesome for bionic HWE installs, which will then fail to boot after upgrading to the 5.3 series eoan kernel. [Test Case] Try to boot an ASUS WS X299 SAGE computer with firmware version 1201. Eoan and Focal kernels will fail to boot. Upstream kernel 5.6-rc1 will boot succressfully. [Fix] Cherry pick upstream 2b73ea379624 ("x86/boot: Handle malformed SRAT tables during early ACPI parsing") [Regression Potential] Low. Any system affected by this patch is already failing to boot. ** Affects: linux (Ubuntu) Importance: Undecided Status: Incomplete ** Tags: cherry-pick eoan focal -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1862888 Title: Boot hang on ASUS WS X299 SAGE To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1862888/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs