From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from bombadil.infradead.org ([198.137.202.133]:58420 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751231AbeDDSy3 (ORCPT ); Wed, 4 Apr 2018 14:54:29 -0400 Date: Wed, 4 Apr 2018 15:54:19 -0300 From: Mauro Carvalho Chehab To: Jaak Ristioja , Peter Geis Cc: Jani Nikula , linux-media@vger.kernel.org, linux-input@vger.kernel.org, Dmitry Torokhov , intel-gfx@lists.freedesktop.org Subject: Re: Linux 4.16 Kernel Boot Crash Message-ID: <20180404155419.0740c805@vento.lan> References: <6a0009be-cbf8-671e-9d7d-c78340e93f58@gmail.com> <87in97up15.fsf@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable Sender: linux-media-owner@vger.kernel.org List-ID: Em Wed, 4 Apr 2018 16:26:22 +0300 Jaak Ristioja escreveu: > Hello, all! >=20 > I experience the same issue with a Lenovo ThinkPad T440p (LENOVO > 20AN006VMS/20AN006VMS, BIOS GLET90WW (2.44 ) 09/13/2017). I tried to > bisect v4.15..v4.16 but failed. Could you post the complete dmesg? I also need the .config used to build the Kernel. =46rom its call trace: [ 43.177492] Call Trace: [ 43.177498] ? devres_add+0x5f/0x70 [ 43.177502] rmi_f54_probe+0x437/0x470 [rmi_core] [ 43.177505] rmi_function_probe+0x25/0x30 [rmi_core] [ 43.177507] driver_probe_device+0x310/0x480 It looks that this was generated by an input driver=20 drivers/input/rmi4/rmi_f54.c, with could be doing something wrong when registering at the media core. =46rom the logs, the warn on is happening at=20 drivers/media/v4l2-core/v4l2-dev.c:945, e. g: /* Should not happen since we thought this minor was free */ WARN_ON(video_device[vdev->minor] !=3D NULL); That was probably called here: drivers/input/rmi4/rmi_f54.c: ret =3D video_register_device(&f54->vdev, = VFL_TYPE_TOUCH, -1); Thanks, Mauro