Fixed on my ThinkPad T590 with the 5.3.0-17.18 kernel. Thanks. -- 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/1845454
Title: Kernel panic in tpm_ functions when booting kernel 5.3 in Ubuntu 19.10 (but 5.2 works) Status in linux package in Ubuntu: Fix Released Bug description: SRU Justification Impact: Some systems are getting kernel panics during boot while parsing tpm event logs from the firmware. This happens only when the tpm and secure boot are both enabled in the firmware. Fix: 3 patches which are currently applied to the upstream EFI maintainer tree. Test Case: On an affected system, booting a 5.3-based kernel will panic during boot when the tpm and secure boot are enabled. A patched kernel will boot successfully. The patches have been verified to fix the issue on a gen 6 Lenovo X1 Carbon. Regression Potential: If the patches have bugs they could cause regressions on systems not currently experiencing issues. The patches are pretty straightforward though, so I believe the risk is minimal and (given the severity of the issue on affected hardware) acceptable. --- Image: http://cdimage.ubuntu.com/daily-live/20190926/eoan-desktop-amd64.iso Device: Dell XPS 13 7390 (201908-27305) When trying to start the live session ("try Ubuntu") or trying to install the ISO ("install Ubuntu"), the boot process stops within 1 second with a kernel panic (see attached screenshot). The system could boot with a previous version of Eoan image: 2019-09-09 09:11 (kernel 5.3.0-10) Workaround: disable TPM2 in the BIOS. /!\ Please note: the information below (and the attached file ProcCpuinfoMinimal.txt) come from a 18.04 live session, since I cannot boot anything with 19.10 beta image. ============================================== ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: syslinux 3:6.03+dfsg1-2 ProcVersionSignature: Ubuntu 5.0.0-23.24~18.04.1-generic 5.0.15 Uname: Linux 5.0.0-23-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.7 Architecture: amd64 CasperVersion: 1.394 CurrentDesktop: ubuntu:GNOME Date: Thu Sep 26 07:41:16 2019 Dependencies: gcc-8-base 8.3.0-6ubuntu1~18.04.1 libc6 2.27-3ubuntu1 libgcc1 1:8.3.0-6ubuntu1~18.04.1 mtools 4.0.18-2ubuntu1 syslinux-common 3:6.03+dfsg1-2 LiveMediaBuild: Ubuntu 18.04.3 LTS "Bionic Beaver" - Release amd64 (20190805) ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=C.UTF-8 SHELL=/bin/bash SourcePackage: syslinux UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1845454/+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
