From mboxrd@z Thu Jan 1 00:00:00 1970 From: Daniel Vetter Subject: Re: WARNING at intel_display.c:9948 during suspend Date: Tue, 3 Dec 2013 17:43:54 +0100 Message-ID: <20131203164354.GH27344@phenom.ffwll.local> References: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mail-ee0-f52.google.com (mail-ee0-f52.google.com [74.125.83.52]) by gabe.freedesktop.org (Postfix) with ESMTP id 168EFFA7E9 for ; Tue, 3 Dec 2013 08:43:08 -0800 (PST) Received: by mail-ee0-f52.google.com with SMTP id d17so1475532eek.39 for ; Tue, 03 Dec 2013 08:43:08 -0800 (PST) Content-Disposition: inline In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: intel-gfx-bounces@lists.freedesktop.org Errors-To: intel-gfx-bounces@lists.freedesktop.org To: Jiri Kosina Cc: Daniel Vetter , intel-gfx@lists.freedesktop.org, linux-kernel@vger.kernel.org List-Id: intel-gfx@lists.freedesktop.org On Mon, Dec 02, 2013 at 11:27:50PM +0100, Jiri Kosina wrote: > I am getting this during suspend with latest Linus' git (HEAD == af91706). > > ------------[ cut here ]------------ > WARNING: CPU: 0 PID: 5397 at drivers/gpu/drm/i915/intel_display.c:9948 intel_get_pipe_from_connector+0x4a/0x50 [i915]() > Modules linked in: ctr ccm af_packet tun iptable_mangle xt_DSCP nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter ip6_tables xt_tcpudp nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack iptable_filter ip_tables x_tables rfcomm cpufreq_conservative bnep cpufreq_userspace cpufreq_powersave iTCO_wdt iTCO_vendor_support kvm_intel kvm snd_hda_codec_conexant iwldvm mac80211 thinkpad_acpi snd_seq sg iwlwifi snd_seq_device snd_hda_intel snd_hda_codec snd_hwdep btusb bluetooth cfg80211 pcspkr snd_pcm i2c_i801 lpc_ich mfd_core rfkill snd_timer ehci_pci snd_page_alloc e1000e snd ptp pps_core wmi battery soundcore ac tpm_tis tpm acpi_cpufreq autofs4 uhci_hcd ehci_hcd i915 usbcore usb_common drm_kms_helper drm i2c_algo_bit video button edd fan processor ata_generic thermal thermal_sys > CPU: 0 PID: 5397 Comm: kworker/u8:3 Not tainted 3.13.0-rc2-00001-gaf91706 #1 > Hardware name: LENOVO 7470BN2/7470BN2, BIOS 6DET38WW (2.02 ) 12/19/2008 > Workqueue: events_unbound async_run_entry_fn > 00000000000026dc ffff8800229c1ab8 ffffffff8158f73b ffff8800229c1af8 > ffffffff8104d527 ffff8800229c1b08 ffff880035f8b4c0 ffff880079558000 > ffff880037cbc000 ffffffffffffffff ffff880035f8b4c0 ffff8800229c1b08 > Call Trace: > [] dump_stack+0x72/0x87 > [] warn_slowpath_common+0x87/0xb0 > [] warn_slowpath_null+0x15/0x20 > [] intel_get_pipe_from_connector+0x4a/0x50 [i915] > [] intel_panel_disable_backlight+0x2b/0x1a0 [i915] > [] intel_disable_lvds+0x4e/0x190 [i915] > [] i9xx_crtc_disable+0x2a9/0x3b0 [i915] > [] i915_drm_freeze+0xda/0x160 [i915] > [] i915_pm_freeze+0x28/0x50 [i915] > [] pci_pm_freeze+0x58/0xd0 > [] ? pci_pm_poweroff+0xf0/0xf0 > [] dpm_run_callback+0x4f/0xa0 > [] __device_suspend+0xef/0x280 > [] async_suspend+0x1a/0xa0 > [] async_run_entry_fn+0x45/0x140 > [] process_one_work+0x204/0x470 > [] ? process_one_work+0x153/0x470 > [] ? __mutex_unlock_slowpath+0xf0/0x180 > [] worker_thread+0x126/0x3b0 > [] ? trace_hardirqs_on+0xd/0x10 > [] ? manage_workers+0x1a0/0x1a0 > [] kthread+0xed/0x100 > [] ? __init_kthread_worker+0x70/0x70 > [] ret_from_fork+0x7c/0xb0 > [] ? __init_kthread_worker+0x70/0x70 > ---[ end trace 8a2e5e8955c55372 ]--- > PM: freeze of devices complete after 407.505 msecs > PM: late freeze of devices complete after 2.719 msecs > PM: noirq freeze of devices complete after 3.789 msecs > Disabling non-boot CPUs ... > kvm: disabling virtualization on CPU1 > smpboot: CPU 1 is now offline > PM: Creating hibernation image: > PM: Need to copy 164506 pages Patch is in drm-intel-fixes and pull request is already sent off. -Daniel -- Daniel Vetter Software Engineer, Intel Corporation +41 (0) 79 365 57 48 - http://blog.ffwll.ch