Bug#917247: udev: Many modules are no longer automatically loaded at boot

[gregor herrmann]

On Wed, 02 Jan 2019 22:29:17 +0100, Michael Biebl wrote:

> could you provide the complete debug log. What you quoted look like
> excerpts.
> Seems the kernel rate limiting unhelpfully kicked in as well (Jan  1
> 23:57:06 jadzia kernel: [  392.915694] systemd-udevd: 2084 output lines
> suppressed due to ratelimiting), so best disable that [1]

Thanks again for your help.

I've tried 3 different scenarios now, all with
printk.devkmsg=on udev.log_priority=debug rd.udev.log_priority=debug
in the kernel command line (and udev_log=debug).

1) keep lvm2 at 2.02.176-4.1, upgrade udev to 240-2

Result: missing modules, no lvm warnings.

2) keep udev at 240-2, upgrade lvm2 to 2.03.02-1

Result: missing modules, and lvm warnings.

3) keep lvm2 at 2.03.02-1, downgrade udev to 239-15

Results: modules are back, and no more lvm warnings.

So it looks like the udev upgrade is reponsible for both the modules
and the lvm troubles (although the latter still has to be confirmed
in actual use over time).


After each boot I saved parts of /var/log away.
Find attached dmesg and kern.log for the above mentioned 3 scenarios.


Cheers,
gregor, about to add a comment on the github issue as well

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