Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754084Ab3I1THo (ORCPT ); Sat, 28 Sep 2013 15:07:44 -0400 Received: from tn-76-7-162-101.sta.embarqhsd.net ([76.7.162.101]:47871 "EHLO animx.eu.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751184Ab3I1THl (ORCPT ); Sat, 28 Sep 2013 15:07:41 -0400 X-Greylist: delayed 1037 seconds by postgrey-1.27 at vger.kernel.org; Sat, 28 Sep 2013 15:07:41 EDT Date: Sat, 28 Sep 2013 14:50:23 -0400 From: Wakko Warner To: linux-kernel@vger.kernel.org Subject: Intel Haswell kernel warning (3.11.2) Message-ID: <20130928185023.GA21672@animx.eu.org> Reply-To: Wakko Warner MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 4520 Lines: 72 Please keep me in CC. I receive a warning in drivers/gpu/drm/i915/intel_display.c:3869. This happens when I'm on a console, the screen has gone into power save and I press a key to wake it up. This doesn't happen when I'm in X. Kernel is Vanilla 3.11.2. # lspci -vns2 00:02.0 0300: 8086:041a (rev 06) (prog-if 00 [VGA controller]) Subsystem: 8086:2010 Flags: bus master, fast devsel, latency 0, IRQ 57 Memory at f0000000 (64-bit, non-prefetchable) [size=4M] Memory at e0000000 (64-bit, prefetchable) [size=256M] I/O ports at f000 [size=64] Expansion ROM at [disabled] Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit- Capabilities: [d0] Power Management version 2 Capabilities: [a4] PCI Advanced Features Kernel driver in use: i915 # gcc version 4.8.1 (Debian 4.8.1-10) This is from dmesg: [ 354.803050] ------------[ cut here ]------------ [ 354.803064] WARNING: CPU: 0 PID: 482 at /usr/src/linux/dist/3.11.2/drivers/gpu/drm/i915/intel_display.c:3869 intel_modeset_check_state+0x764/0x770 [i915]() [ 354.803064] wrong connector dpms state [ 354.803084] Modules linked in: nfsd auth_rpcgss oid_registry exportfs nfs lockd sunrpc xt_nat iptable_nat nf_nat_ipv4 nf_nat xt_limit xt_LOG xt_tcpudp nf_conntrack_ipv4 nf_defrag_ipv4 ipt_REJECT ipv6 xt_recent xt_conntrack nf_conntrack iptable_filter ip_tables x_tables snd_hda_codec_realtek snd_hda_codec_hdmi x86_pkg_temp_thermal snd_hda_intel coretemp kvm_intel snd_hda_codec i915 kvm snd_hwdep snd_pcm_oss snd_mixer_oss crc32_pclmul snd_pcm crc32c_intel e1000e intel_agp igb ghash_clmulni_intel intel_gtt aesni_intel cfbfillrect aes_x86_64 cfbimgblt lrw cfbcopyarea drm_kms_helper ptp video thermal processor gf128mul snd_page_alloc drm snd_timer glue_helper 8250_pci snd pps_core ablk_helper agpgart cryptd sg soundcore fan i2c_algo_bit sr_mod thermal_sys 8250 i2c_i801 serial_core hwmon cdrom i2c_core evdev button [ 354.803086] CPU: 0 PID: 482 Comm: kworker/0:1 Not tainted 3.11.2 #1 [ 354.803087] Hardware name: Supermicro X10SAE/X10SAE, BIOS 1.00 05/03/2013 [ 354.803091] Workqueue: events console_callback [ 354.803092] 0000000000000009 ffff88023611db48 ffffffff814048ac ffff88023611db90 [ 354.803093] ffff88023611db80 ffffffff8103d4e3 ffff880230d82800 ffff880230f9b800 [ 354.803094] ffff880230f99000 ffff880230f99448 ffff8802351c0e00 ffff88023611dbe0 [ 354.803094] Call Trace: [ 354.803098] [] dump_stack+0x54/0x8d [ 354.803101] [] warn_slowpath_common+0x73/0x90 [ 354.803103] [] warn_slowpath_fmt+0x47/0x50 [ 354.803109] [] ? intel_ddi_connector_get_hw_state+0x5e/0x110 [i915] [ 354.803114] [] intel_modeset_check_state+0x764/0x770 [i915] [ 354.803117] [] intel_connector_dpms+0x3b/0x60 [i915] [ 354.803120] [] drm_fb_helper_dpms.isra.11+0x120/0x160 [drm_kms_helper] [ 354.803122] [] drm_fb_helper_blank+0x3e/0x80 [drm_kms_helper] [ 354.803123] [] fb_blank+0x52/0xc0 [ 354.803125] [] fbcon_blank+0x21b/0x2d0 [ 354.803127] [] ? update_rq_clock.part.74+0x13/0x30 [ 354.803129] [] ? lock_timer_base.isra.30+0x26/0x50 [ 354.803130] [] ? internal_add_timer+0x12/0x40 [ 354.803131] [] ? mod_timer+0xf8/0x1c0 [ 354.803133] [] do_unblank_screen+0xa1/0x1c0 [ 354.803134] [] poke_blanked_console+0xc7/0xd0 [ 354.803136] [] console_callback+0x13f/0x160 [ 354.803137] [] process_one_work+0x148/0x3d0 [ 354.803138] [] worker_thread+0x119/0x3a0 [ 354.803140] [] ? manage_workers.isra.30+0x2a0/0x2a0 [ 354.803141] [] kthread+0xbb/0xc0 [ 354.803142] [] ? kthread_create_on_node+0x120/0x120 [ 354.803144] [] ret_from_fork+0x7c/0xb0 [ 354.803145] [] ? kthread_create_on_node+0x120/0x120 [ 354.803145] ---[ end trace 590553ce6c6f5fa9 ]--- -- Microsoft has beaten Volkswagen's world record. Volkswagen only created 22 million bugs. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/