Re: Odd hang on suspend and shutdown

On Mon, Jul 6, 2015 at 9:07 AM, Samuel Ortiz [off-list ref] wrote:

I suppose you were not seeing this issue on e.g. a 4.1 kernel (assuming
this is not a brand new laptop) ?

Nope, 4.1 is fine. This is my travel laptop for the last almost two
years. Best laptop I've ever had (I like them small and light).

If that's the case, is any of the pn544* kernel modules loaded when
running on top of a good kernel ?

So it doesn't show up in lsmod, but presumably the module got loaded
and then errored out or something. The mei and mei_me modules are
loaded, nut no pn544_mei.

I'm not even sure why it's in my configuration, because I tend to try
to keep those small, and my config was generated (long ago) with "make
localmodconfig", but maybe there's something non-obvious that brought
it in. Presumably that pn544 module was loaded at _some_ point in the
past.

I just tested, and loading it manually with "modprobe pn544_mei"
doesn't seem to do anything bad.  I can still suspend with a good
kernel. So it's not just about loading the module, there's some other
interaction going on.

                     Linus