From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jani Nikula Subject: Re: [Intel-gfx] Linux 4.8-rc?: WARNING: at drivers/gpu/drm/i915/intel_pm.c:7866 sandybridge_pcode_write Missing switch case (16) in gen6_check_mailbox_status Date: Tue, 06 Sep 2016 12:25:11 +0300 Message-ID: <87mvjlxtvs.fsf@intel.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: linux@eikelenboom.it, Daniel Vetter Cc: intel-gfx@lists.freedesktop.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org T24gVHVlLCAwNiBTZXAgMjAxNiwgbGludXhAZWlrZWxlbmJvb20uaXQgd3JvdGU6Cj4gTC5TLiwK Pgo+IFNpbmNlIG9uZSBvZiB0aGUgbGFzdCA0LjggUkMncyBpJ20gZ2V0dGluZyB0aGUgd2Fybmlu ZyBiZWxvdyB3aGVuIAo+IGJvb3Rpbmcgb24gbXkgc2FuZHlicmlkZ2UgYmFzZWQgdGhpbmtwYWQu Cj4gIEZyb20gd2hhdCBpdCBzZWVtcyB0aGUgbWFjaGluZSBzdGlsbCB3b3JrcyBmaW5lIHRob3Vn aC4KCldoYXQgZG9lcyAnbHNwY2kgLW5ucyAyJyBzYXkgZm9yIHlvdT8KCkJSLApKYW5pLgoKCj4K PiAtLQo+IFNhbmRlcgo+Cj4gWyAgICAyLjg0NjI2NV0gLS0tLS0tLS0tLS0tWyBjdXQgaGVyZSBd LS0tLS0tLS0tLS0tCj4gWyAgICAyLjg0NjI4MF0gV0FSTklORzogQ1BVOiAwIFBJRDogNCBhdCAK PiBkcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9wbS5jOjc4NjYgc2FuZHlicmlkZ2VfcGNvZGVf d3JpdGUrMHgxMDQvMHgxZTAKPiBbICAgIDIuODQ2MjgyXSBNaXNzaW5nIHN3aXRjaCBjYXNlICgx NikgaW4gZ2VuNl9jaGVja19tYWlsYm94X3N0YXR1cwo+IFsgICAgMi44NDYyODRdIE1vZHVsZXMg bGlua2VkIGluOgo+IFsgICAgMi44NDYyODldIENQVTogMCBQSUQ6IDQgQ29tbToga3dvcmtlci8w OjAgTm90IHRhaW50ZWQgCj4gNC44LjAtcmM1LXgyMjAtMjAxNjA5MDUrICMxCj4gWyAgICAyLjg0 NjI5MF0gSGFyZHdhcmUgbmFtZTogTEVOT1ZPIDQyOTEyWlUvNDI5MTJaVSwgQklPUyA4REVUNjlX VyAKPiAoMS4zOSApIDA3LzE4LzIwMTMKPiBbICAgIDIuODQ2Mjk3XSBXb3JrcXVldWU6IGV2ZW50 cyBpbnRlbF9nZW42X3Bvd2Vyc2F2ZV93b3JrCj4gWyAgICAyLjg0NjMwMl0gIDAwMDAwMDAwMDAw MDAwMDAgZmZmZmZmZmY4MTM4YmQ4NCBmZmZmODgwMzBmZDdiZDc4IAo+IDAwMDAwMDAwMDAwMDAw MDAKPiBbICAgIDIuODQ2MzA1XSAgZmZmZmZmZmY4MTA2MmQ4NCBmZmZmODgwMzBkNDkwMDAwIGZm ZmY4ODAzMGZkN2JkYzggCj4gMDAwMDAwMDAwMDAwMDAwMAo+IFsgICAgMi44NDYzMDhdICBmZmZm ODgwMzBkNDlhNDM4IGZmZmY4ODAzMGQ0OTg4MzAgMDAwMDAwMDAwMDAwMDAwMCAKPiBmZmZmZmZm ZjgxMDYyZGVhCj4gWyAgICAyLjg0NjMwOV0gQ2FsbCBUcmFjZToKPiBbICAgIDIuODQ2MzE5XSAg WzxmZmZmZmZmZjgxMzhiZDg0Pl0gPyBkdW1wX3N0YWNrKzB4NWMvMHg3OAo+IFsgICAgMi44NDYz MjRdICBbPGZmZmZmZmZmODEwNjJkODQ+XSA/IF9fd2FybisweGI0LzB4ZDAKPiBbICAgIDIuODQ2 MzI4XSAgWzxmZmZmZmZmZjgxMDYyZGVhPl0gPyB3YXJuX3Nsb3dwYXRoX2ZtdCsweDRhLzB4NTAK PiBbICAgIDIuODQ2MzMzXSAgWzxmZmZmZmZmZjgxNGVkZjQ0Pl0gPyAKPiBzYW5keWJyaWRnZV9w Y29kZV93cml0ZSsweDEwNC8weDFlMAo+IFsgICAgMi44NDYzMzhdICBbPGZmZmZmZmZmODE0ZWVm ZDM+XSA/IAo+IGludGVsX2dlbjZfcG93ZXJzYXZlX3dvcmsrMHgyYTMvMHgxNDAwCj4gWyAgICAy Ljg0NjM0NF0gIFs8ZmZmZmZmZmY4MTA3ODFlYT5dID8gcHJvY2Vzc19vbmVfd29yaysweDFiYS8w eDNkMAo+IFsgICAgMi44NDYzNDhdICBbPGZmZmZmZmZmODEwNzg0NDU+XSA/IHdvcmtlcl90aHJl YWQrMHg0NS8weDRlMAo+IFsgICAgMi44NDYzNTFdICBbPGZmZmZmZmZmODEwNzg0MDA+XSA/IHBy b2Nlc3Nfb25lX3dvcmsrMHgzZDAvMHgzZDAKPiBbICAgIDIuODQ2MzU1XSAgWzxmZmZmZmZmZjgx MDdkNjc4Pl0gPyBrdGhyZWFkKzB4YjgvMHhkMAo+IFsgICAgMi44NDYzNjJdICBbPGZmZmZmZmZm ODE3Y2M4ZGY+XSA/IHJldF9mcm9tX2ZvcmsrMHgxZi8weDQwCj4gWyAgICAyLjg0NjM2NV0gIFs8 ZmZmZmZmZmY4MTA3ZDVjMD5dID8ga3RocmVhZF93b3JrZXJfZm4rMHgxODAvMHgxODAKPiBbICAg IDIuODQ2MzY4XSAtLS1bIGVuZCB0cmFjZSBkYTdiMmNhOGE2NjU0YmZhIF0tLS0KPiBfX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwo+IEludGVsLWdmeCBtYWls aW5nIGxpc3QKPiBJbnRlbC1nZnhAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCj4gaHR0cHM6Ly9saXN0 cy5mcmVlZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9pbnRlbC1nZngKCi0tIApKYW5pIE5p a3VsYSwgSW50ZWwgT3BlbiBTb3VyY2UgVGVjaG5vbG9neSBDZW50ZXIKX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KZHJpLWRldmVsIG1haWxpbmcgbGlzdApk cmktZGV2ZWxAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlzdHMuZnJlZWRlc2t0b3Au b3JnL21haWxtYW4vbGlzdGluZm8vZHJpLWRldmVsCg== From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934148AbcIFJZX (ORCPT ); Tue, 6 Sep 2016 05:25:23 -0400 Received: from mga02.intel.com ([134.134.136.20]:5668 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933727AbcIFJZT (ORCPT ); Tue, 6 Sep 2016 05:25:19 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.30,291,1470726000"; d="scan'208";a="1051948538" From: Jani Nikula To: linux@eikelenboom.it, Daniel Vetter Cc: intel-gfx@lists.freedesktop.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org Subject: Re: [Intel-gfx] Linux 4.8-rc?: WARNING: at drivers/gpu/drm/i915/intel_pm.c:7866 sandybridge_pcode_write Missing switch case (16) in gen6_check_mailbox_status In-Reply-To: Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo References: User-Agent: Notmuch/0.22.1+63~g648dcc7 (https://notmuchmail.org) Emacs/24.4.1 (x86_64-pc-linux-gnu) Date: Tue, 06 Sep 2016 12:25:11 +0300 Message-ID: <87mvjlxtvs.fsf@intel.com> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 06 Sep 2016, linux@eikelenboom.it wrote: > L.S., > > Since one of the last 4.8 RC's i'm getting the warning below when > booting on my sandybridge based thinkpad. > From what it seems the machine still works fine though. What does 'lspci -nns 2' say for you? BR, Jani. > > -- > Sander > > [ 2.846265] ------------[ cut here ]------------ > [ 2.846280] WARNING: CPU: 0 PID: 4 at > drivers/gpu/drm/i915/intel_pm.c:7866 sandybridge_pcode_write+0x104/0x1e0 > [ 2.846282] Missing switch case (16) in gen6_check_mailbox_status > [ 2.846284] Modules linked in: > [ 2.846289] CPU: 0 PID: 4 Comm: kworker/0:0 Not tainted > 4.8.0-rc5-x220-20160905+ #1 > [ 2.846290] Hardware name: LENOVO 42912ZU/42912ZU, BIOS 8DET69WW > (1.39 ) 07/18/2013 > [ 2.846297] Workqueue: events intel_gen6_powersave_work > [ 2.846302] 0000000000000000 ffffffff8138bd84 ffff88030fd7bd78 > 0000000000000000 > [ 2.846305] ffffffff81062d84 ffff88030d490000 ffff88030fd7bdc8 > 0000000000000000 > [ 2.846308] ffff88030d49a438 ffff88030d498830 0000000000000000 > ffffffff81062dea > [ 2.846309] Call Trace: > [ 2.846319] [] ? dump_stack+0x5c/0x78 > [ 2.846324] [] ? __warn+0xb4/0xd0 > [ 2.846328] [] ? warn_slowpath_fmt+0x4a/0x50 > [ 2.846333] [] ? > sandybridge_pcode_write+0x104/0x1e0 > [ 2.846338] [] ? > intel_gen6_powersave_work+0x2a3/0x1400 > [ 2.846344] [] ? process_one_work+0x1ba/0x3d0 > [ 2.846348] [] ? worker_thread+0x45/0x4e0 > [ 2.846351] [] ? process_one_work+0x3d0/0x3d0 > [ 2.846355] [] ? kthread+0xb8/0xd0 > [ 2.846362] [] ? ret_from_fork+0x1f/0x40 > [ 2.846365] [] ? kthread_worker_fn+0x180/0x180 > [ 2.846368] ---[ end trace da7b2ca8a6654bfa ]--- > _______________________________________________ > Intel-gfx mailing list > Intel-gfx@lists.freedesktop.org > https://lists.freedesktop.org/mailman/listinfo/intel-gfx -- Jani Nikula, Intel Open Source Technology Center