From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756852AbcH2INW (ORCPT ); Mon, 29 Aug 2016 04:13:22 -0400 Received: from smtp2.it.da.ut.ee ([193.40.5.67]:47081 "EHLO smtp2.it.da.ut.ee" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756836AbcH2INU (ORCPT ); Mon, 29 Aug 2016 04:13:20 -0400 Date: Mon, 29 Aug 2016 12:42:13 +0300 (EEST) From: Meelis Roos To: Linux Kernel list , dri-devel@lists.freedesktop.org, intel-gfx@lists.freedesktop.org Subject: i915 WARNING: Missing switch case (16) in gen6_check_mailbox_status Message-ID: User-Agent: Alpine 2.20 (LRH 67 2015-01-07) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Tried 4.8-rc4 on my i5-2400 PC, got this warning: [ 14.579557] i915 0000:00:02.0: fb0: inteldrmfb frame buffer device [ 15.847321] ------------[ cut here ]------------ [ 15.847346] WARNING: CPU: 0 PID: 208 at drivers/gpu/drm/i915/intel_pm.c:7866 sandybridge_pcode_write+0x109/0x1f0 [i915] [ 15.847348] Missing switch case (16) in gen6_check_mailbox_status [ 15.847349] Modules linked in: cpufreq_powersave cpufreq_userspace cpufreq_conservative joydev hid_generic usbhid hid x86_pkg_temp_thermal kvm_intel kvm irqbypass crc32c_intel aesni_intel snd_hda_codec_realtek snd_hda_codec_generic iTCO_wdt i915 aes_x86_64 iTCO_vendor_support glue_helper lrw ablk_helper cryptd video i2c_algo_bit drm_kms_helper psmouse pcspkr syscopyarea sysfillrect sysimgblt fb_sys_fops ehci_pci ehci_hcd snd_hda_intel xhci_pci xhci_hcd e1000e snd_hda_codec snd_hwdep usbcore drm snd_hda_core usb_common i2c_i801 ptp pps_core i2c_smbus snd_pcm_oss snd_mixer_oss snd_pcm snd_timer evdev snd tpm_tis lpc_ich parport_pc tpm_tis_core mfd_core parport nuvoton_cir rc_core tpm soundcore floppy w83627ehf hwmon_vid coretemp hwmon eeprom i2c_core loop ip_tables x_tables autofs4 [ 15.847395] CPU: 0 PID: 208 Comm: kworker/0:2 Not tainted 4.8.0-rc4 #213 [ 15.847396] Hardware name: /DQ67OW, BIOS SWQ6710H.86A.0066.2012.1105.1504 11/05/2012 [ 15.847412] Workqueue: events intel_gen6_powersave_work [i915] [ 15.847414] 0000000000000000 ffffffff812d8198 ffff88023191fd70 0000000000000000 [ 15.847417] ffffffff81056d1e ffff88022ea40000 ffff88023191fdc0 0000000000000000 [ 15.847419] ffff88022ea4a3c8 ffff88022ea487c0 0ffff88023e21ba0 ffffffff81056d8f [ 15.847422] Call Trace: [ 15.847427] [] ? dump_stack+0x46/0x5e [ 15.847429] [] ? __warn+0xbe/0xe0 [ 15.847431] [] ? warn_slowpath_fmt+0x4f/0x60 [ 15.847446] [] ? sandybridge_pcode_write+0x109/0x1f0 [i915] [ 15.847459] [] ? intel_gen6_powersave_work+0x2a8/0x1400 [i915] [ 15.847462] [] ? process_one_work+0x1eb/0x480 [ 15.847465] [] ? worker_thread+0x47/0x4c0 [ 15.847467] [] ? __schedule+0x1d7/0x660 [ 15.847469] [] ? process_one_work+0x480/0x480 [ 15.847472] [] ? kthread+0xbd/0xe0 [ 15.847475] [] ? ret_from_fork+0x1f/0x40 [ 15.847478] [] ? kthread_worker_fn+0x160/0x160 [ 15.847487] ---[ end trace ad9e991297d99be1 ]--- -- Meelis Roos (mroos@linux.ee)