From mboxrd@z Thu Jan 1 00:00:00 1970 From: Samuel Ortiz Subject: Re: Odd hang on suspend and shutdown Date: Mon, 6 Jul 2015 18:07:06 +0200 Message-ID: <20150706160706.GA22015@zurbaran.home> References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: Sender: linux-api-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Linus Torvalds Cc: Tomas Winkler , Greg Kroah-Hartman , Linux API List-Id: linux-api@vger.kernel.org On Sun, Jul 05, 2015 at 04:20:02PM -0700, Linus Torvalds wrote: > 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. I suppose you were not seeing this issue on e.g. a 4.1 kernel (assuming this is not a brand new laptop) ? If that's the case, is any of the pn544* kernel modules loaded when running on top of a good kernel ? Cheers, Samuel.