From mboxrd@z Thu Jan 1 00:00:00 1970 From: Linus Torvalds Subject: Odd hang on suspend and shutdown Date: Sun, 5 Jul 2015 16:20:02 -0700 Message-ID: Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Return-path: Sender: linux-api-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Tomas Winkler , Greg Kroah-Hartman Cc: Linux API , Samuel Ortiz List-Id: linux-api@vger.kernel.org On my Sony VAIO Pro 11 laptop, commit c93b76b34b4d ("mei: bus: report also uuid in module alias") seems to cause problems at suspend and shutdown. In particular, reverting just the oneliner to drivers/nfc/pn544/mei.c seems to fix things for me. The bisection was a pain, because it took me forever to realize that it was that one-liner that caused it: I had initially undone that one line simply because it didn't compile with it in place (complaints about MEI_NFC_UUID not being constant). So I continued to bisect with the fix unintentionally in place. So just removing the MEI_NFC_UUID entry from the pn544_mei_tbl[] array initialization makes things work for me again. The symptoms are just a hard hang at suspend or shutdown. This is a pretty regular Intel-only laptop, running Fedora 22. Any ideas? Linus