The CM4 is plugged into "CM4_WiFi7-PoE" board, please see http://wiki.mcuzone.com/index.php?title=2004_CM4_WiFi7_WiFi6_WLANPi for more information.
Is this the correct way to check the bootloader version? ubuntu@ubuntu:~$ sudo vcgencmd bootloader_version 2023/01/11 17:40:52 version 8ba17717fbcedd4c3b6d4bce7e50c7af4155cba9 (release) timestamp 1673458852 update-time 0 capabilities 0x0000007f ubuntu@ubuntu:~$ ubuntu@ubuntu:~$ sudo vcgencmd version Feb 29 2024 12:24:53 Copyright (c) 2012 Broadcom version f4e2138c2adc8f3a92a3a65939e458f11d7298ba (clean) (release) (start) A few notes: - The manufacturer is able to reproduce the same issue. They have reported that the same issue does not occur if you swap the CM4 with a CM5, but I need to verify this once I obtain a CM5. - The issue does not occur when using Raspberry Pi OS (as noted above) >> I cannot reproduce this locally. For me, PCI devices always show up after a reboot-after-crash. Thanks for trying to reproduce - I can make a remote test environment available if that helps. It occurs ~half the time for us. I've attached some example test runs dmesg outputs (these were done with additional /boot/firmware/cmdline.txt parameters set (pcie_aspm=off as part of an experiment) ** Attachment added: "dmesg output after panic - 10 runs" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2099935/+attachment/5861155/+files/dmesg%20output%20from%2010%20tests.zip -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2099935 Title: PCI initialization failure following kernel panic reboot on Raspberry Pi CM4 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2099935/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs