From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753932AbdG3I72 (ORCPT ); Sun, 30 Jul 2017 04:59:28 -0400 Received: from isilmar-4.linta.de ([136.243.71.142]:44086 "EHLO isilmar-4.linta.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753633AbdG3I70 (ORCPT ); Sun, 30 Jul 2017 04:59:26 -0400 Date: Sun, 30 Jul 2017 10:59:08 +0200 From: Dominik Brodowski To: tomas.winkler@intel.com Cc: alexander.usyskin@intel.com, linux-kernel@vger.kernel.org Subject: MEI-related WARN_ON() triggered during resume-from-sleep on v4.12-rc2+ Message-ID: <20170730085908.GA2298@light.dominikbrodowski.net> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="TB36FDmn/VVEgNH/" Content-Disposition: inline User-Agent: Mutt/1.8.3 (2017-05-23) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --TB36FDmn/VVEgNH/ Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Thomas, on Linus' most recent kernel (v4.12-rc2, git head 0a07b238e5f48), I see the following message on my Dell XPS13 when resuming from sleep. MEI is, AFAIK, not being used on this system: [ 192.940537] Restarting tasks ...=20 [ 192.940610] PGI is not set [ 192.940619] ------------[ cut here ]------------ [ 192.940623] WARNING: CPU: 0 PID: 1661 at /home/brodo/local/kernel/git/li= nux/drivers/misc/mei/hw-me.c:653 mei_me_pg_exit_sync+0x351/0x360 [ 192.940624] Modules linked in: [ 192.940627] CPU: 0 PID: 1661 Comm: kworker/0:3 Not tainted 4.13.0-rc2+ #2 [ 192.940628] Hardware name: Dell Inc. XPS 13 9343/0TM99H, BIOS A11 12/08/= 2016 [ 192.940630] Workqueue: pm pm_runtime_work [ 192.940642] Call Trace: [ 192.940646] ? pci_pme_active+0x1de/0x1f0 [ 192.940649] ? pci_restore_standard_config+0x50/0x50 [ 192.940651] ? kfree+0x172/0x190 [ 192.940653] ? kfree+0x172/0x190 [ 192.940655] ? pci_restore_standard_config+0x50/0x50 [ 192.940663] mei_me_pm_runtime_resume+0x3f/0xc0 [ 192.940665] pci_pm_runtime_resume+0x7a/0xa0 [ 192.940667] __rpm_callback+0xb9/0x1e0 [ 192.940668] ? preempt_count_add+0x6d/0xc0 [ 192.940670] rpm_callback+0x24/0x90 [ 192.940672] ? pci_restore_standard_config+0x50/0x50 [ 192.940674] rpm_resume+0x4e8/0x800 [ 192.940676] pm_runtime_work+0x55/0xb0 [ 192.940678] process_one_work+0x184/0x3e0 [ 192.940680] worker_thread+0x4d/0x3a0 [ 192.940681] ? preempt_count_sub+0x9b/0x100 [ 192.940683] kthread+0x122/0x140 [ 192.940684] ? process_one_work+0x3e0/0x3e0 [ 192.940685] ? __kthread_create_on_node+0x1a0/0x1a0 [ 192.940688] ret_from_fork+0x27/0x40 [ 192.940690] Code: 96 3a 9e ff 48 8b 7d 98 e8 cd 21 58 00 83 bb bc 01 00 = 00 04 0f 85 40 fe ff ff e9 41 fe ff ff 48 c7 c7 5f 04 99 96 e8 93 6b 9f ff = <0f> ff e9 5d fd ff ff e8 33 fe 99 ff 0f 1f 00 0f 1f 44 00 00 55=20 [ 192.940719] ---[ end trace a86955597774ead8 ]--- [ 192.942540] done. This doesn't / didn't happen on v4.12. Best, Dominik --TB36FDmn/VVEgNH/ Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAEBCAAdFiEEmgXaWKgmjrvkPhLCmpdgiUyNow0FAll9n9gACgkQmpdgiUyN ow0jAQ/+OEFz5vEuAXoOtAJgSdTwGgdSGMGiZKI9Te9NkHM2fq9/pHC+0HRHgDEe x2xxl9WBRh2DQyEYIWogu5v6bpLUTypnPld7jBQkrxqS9rZelNJMt9HoNH1pa6k4 Pm7slSd+qtWDZSViNto76p5rdNNc6h05rtt+/ubnsygBWHI3AGpEIMlZ2LU31SB0 Ip37zO/hJBW5OxryqLCxpCleud8GaOKrwrwKymTV35umPahCBLI4Zu7szImR89BB NzRnTq3aQo/65aN0QYD3YEMHTcKbRPtwUzZAP9y5gw11pq6OAjVMYtLMmKqBpAOM J8koW8Tkz0TqiQQFCs7HZWMclsfczn6zyxXeXnEh6ateSG1SLhXOkycX2tdxPlZz F7Z1BjfXcjacOwUJvgT1CFrkwTob1/sacN6p4VTSFdvTyJ+gxlB92lVpI7xBHxfu hE54X0TdQw6HmP5fgD2nLZaTJE5NENMWetp17pZcRFXU7y7sexHRC/r6w+RgOEA6 YUUVtTz4cff7J2nk6UZNBWTV+GrRgUo58zcOSzBaZjn977Q8E7+GkshxTmKMkKbJ D83bWhStW+m4q1WYFZ622GUyD1OA1b5v12USmqXTGYi08kSZyKFZZS7diqYa5Oit VhdhafQfMSPdWuMstnKxj6/tOQgVtJ5d6g1M/RjmHLyiAIve974= =PJmu -----END PGP SIGNATURE----- --TB36FDmn/VVEgNH/--