Kernel 5.3.0-13-generic crashes at boot in tpm_read_log_efi(), HP EliteBook 840 G5

[monoi]

Upgraded to Ubuntu 19.10 from 19.04.

On first boot of 19.10, Kernel 5.3.0.13-generic crashed with an error in tpm_read_log_efi(), see screenshot. Disabling TPM in BIOS allowed successful boot of kernel 5.3.0.13-generic.

Kernel 5.0.0-31-generic will boot 19.10 successfully, with or without TPM enabled in the BIOS.

Hardware is HP EliteBook 840 G5. BIOS not most recent, cannot upgrade without installing Windows.

---

$ lsb_release -rd

Description: Ubuntu Eoan Ermine (development branch)
Release: 19.10

$ apt-cache policy linux-generic

linux-generic:
  Installed: 5.3.0.13.14
  Candidate: 5.3.0.13.14
  Version table:
 *** 5.3.0.13.14 500
        500 http://gb.archive.ubuntu.com/ubuntu eoan/main amd64 Packages
        100 /var/lib/dpkg/status

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:

apport-collect 1847042

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[monoi (bschofield)]

apport-collect report sent.

[monoi (bschofield)]

Possibly the same issue as this: https://lkml.org/lkml/2019/9/25/339

[Mauricio Faria de Oliveira (mfo)]

This seems to be a duplicate of bug 1845454.

Could you please try the test kernel build in bug 1845454 comment 11 and tell if that resolves the problem?

Thanks!

[monoi (bschofield)]

New kernel package 5.3.0-17-generic has fixed this for me, I can now boot with TPM enabled.

Thank you for the work!