https://bugzilla.kernel.org/show_bug.cgi?id=201965
--- Comment #6 from Julius Henry Marx (sawb...@gmx.net) --- Hello: An update of sorts, but in maybe relevant. > ... wait and see if the fault occurrs again. Setting TPM to enabled has yet to produce the fault. But this is with my box running Devuan Linux Beowulf with a backported kernel: [code] ~$ uname -a Linux devuan 5.10.0-0.deb10.16-amd64 #1 SMP Debian 5.10.127-2~bpo10+1 (2022-07-28) x86_64 GNU/Linux ~$ [/code] ie: Debian 5.10.127 kernel Like I mentioned earlier, I have never found a way to reproduce it so it is a matter of waiting to see 'if and when' it crops up again. It has been that way since I installed Linux on this box.(2015) But then, while testing a Linux Devuan 5.0.0 (Daedalus) Live from a USB stick the fault happened at shutdown, for the first time after enabling TPM in the BIOS. [code] ~$ uname -a Linux devuan 6.1.0-10-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.38-1 (2023-07-14) x86_64 GNU/Linux ~$ [/code] Rather dissapointed at this being so, I went back to working on other things with my usual Beowulf (Debian 5.10 kernel) installation, booting and shutting down (as usual) a few times during a day's work without incident. When finished, I went back to booting the USB stick to continue testing the latest Devuan Daedalus release and the fault occurred yet again. TL;DR: With the Debian 5.10.xxx (and all previous) kernels, the fault has always occurred albeit in the usual unpredictable/non-reproducible manner. But with the Debian 6.1.38 kernel in Devuan Daedalus, if the TPM feature is enabled in the BIOS it happens *every* time. The Sun Ultra 24 is ca.2007 hardware and the last available BIOS (1.56) is from late 2011 so I expect that the on-board 1.1/1.2 TPM [i]thing[/i] it carries is probably as much a POS as the board's BIOS itself. Given my limited experience with all this, I can only speculate that whatever bugs exist within my mainboard's BIOS *may* have been partly worked around in Linux kernel v. 6.1.38. ie: the shutdown problem solved, albeit not entirely, by disabling TPM in the BIOS. But I will have to update my rig to Devuan Daedalus to find out and I'm not quite there yet. I'd appreciate any comments on this. Best, JHM -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. _______________________________________________ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
