To repro: 1. set karg "debugfs=off" on the latest Fedora 39 2. reboot 3. Observe that NetworkManager fails to start (times out) Reproducible: Always Steps to Reproduce: 1. set karg "debugfs=off" on the latest Fedora 39 2. reboot 3. Observe that NetworkManager fails to start (times out) Actual Results: NetworkManager fails to start (times out) Expected Results: NetworkManager starts fine
I can't reproduce the problem, please set the logging level to trace in /etc/NetworkManager/NetworkManager.conf, add kernel command line "rd.debug", reproduce the problem and attach the output of `journalctl -b`.
*** Bug 2263770 has been marked as a duplicate of this bug. ***
Attached the full log. The relevant portion appears to be this: ``` Feb 12 08:09:00 fedora audit[1]: SERVICE_START pid=1 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:init_t:s0 msg='unit=usbguard comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=failed' Feb 12 08:09:00 fedora audit: BPF prog-id=61 op=UNLOAD Feb 12 08:09:00 fedora kernel: iwlwifi 0000:00:14.3: Registered PHC clock: iwlwifi-PTP, with index: 0 Feb 12 08:09:00 fedora kernel: BUG: kernel NULL pointer dereference, address: 0000000000000027 Feb 12 08:09:00 fedora kernel: #PF: supervisor read access in kernel mode Feb 12 08:09:00 fedora kernel: #PF: error_code(0x0000) - not-present page Feb 12 08:09:00 fedora kernel: PGD 0 P4D 0 Feb 12 08:09:00 fedora kernel: Oops: 0000 [#1] PREEMPT SMP PTI ``` To repro, it looks like you'll need to use a machine with hardware that has iwlwifi in combination with the karg.
Created attachment 2016469 [details] previous boot logs
It's a kernel crash, I'm reassigning it to the right component.
Adding some additional details here. On kernel 6.7.7 on an iwlwifi machine with debugfs=off, it no longer causes a boot failure, but it still causes erratic behavior. Wifi is completely broken and programs frequently and sporadically lock up until the system freezes altogether. I have several other users who are able to repro as well. Please let me know if I can provide any additional context or if help is needed getting a repro. Thanks!