On Tue, May 28, 2019 at 7:15 PM Jiri Kosina [off-list ref] wrote:

On Tue, 28 May 2019, Dave Hansen wrote:

quoted

I have a system that works fine on 5.1.  When updating to 5.2-rc1, it
hangs at boot waiting on an instance of systemd-udevd.  The kernel
backtrace (https://photos.app.goo.gl/EV8rf7FofWouvdeE8) looks like it's
doing an finit_module() that dives into the hid code and is waiting on a
request_module().

Dave,

thanks for the report.

Just to confirm -- I guess reverting 4ceabaf79 and a025a18fe would work
this around, right?

It would be also interesting to know which distribution and which
systemd version you are running (if you are on systemd).

This rings a bell as I recall  playing with
request_module/request_firmware a while ago, but Hans convinced me
that no such delay would be induced.

Cheers,
Benjamin