Created attachment 119142 [details] full dmesg output Please see trace. Hardware is a BeeBox with Intel N3000 CPU. ------------[ cut here ]------------ [ 17.367701] WARNING: CPU: 1 PID: 0 at drivers/gpu/drm/i915/intel_display.c:11284 intel_check_page_flip+0xb5/0xfb() [ 17.367708] Kicking stuck page flip: queued at 966, now 975 [ 17.367712] Modules linked in: xt_multiport iptable_filter rfcomm bnep ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack ip_tables mxl5005s af9013 rc_technisat_usb2 stv6110x stv090x dvb_usb_af9015 dvb_usb_technisat_usb2 dvb_usb_v2 dvb_usb dvb_core sr_mod cdrom hid_logitech usbhid btusb uas btrtl btbcm btintel bluetooth usb_storage snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic snd_hda_intel snd_hda_codec snd_hwdep snd_hda_core snd_pcm_oss snd_mixer_oss snd_pcm snd_seq_dummy snd_seq_oss snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq kvm_intel kvm snd_seq_device crct10dif_pclmul snd_timer rtl8821ae psmouse btcoexist rtl_pci rtlwifi mac80211 snd cfg80211 xhci_pci lpc_ich r8169 mii xhci_hcd ir_lirc_codec lirc_dev ir_xmp_decoder [ 17.367859] ir_mce_kbd_decoder ir_sharp_decoder soundcore ir_sanyo_decoder ir_jvc_decoder ir_sony_decoder sg ir_rc6_decoder ir_rc5_decoder ir_nec_decoder rc_rc6_mce nuvoton_cir rc_core sdhci_acpi sdhci mmc_core rfkill_gpio pinctrl_cherryview tpm_crb rfkill acpi_pad fuse ipv6 autofs4 sd_mod [ 17.367914] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.3.0-rc6 #3 [ 17.367920] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./N3000-NUC, BIOS P1.30 07/16/2015 [ 17.367926] 0000000000000000 ffff88027fd03c28 ffffffff952664ac ffff88027fd03c70 [ 17.367937] ffff88027fd03c60 ffffffff95062685 ffffffff953c7a7b ffff880276628800 [ 17.367947] ffff88026ea90b00 ffff880276623000 ffff8802766289a8 ffff88027fd03cc8 [ 17.367958] Call Trace: [ 17.367963] <IRQ> [<ffffffff952664ac>] dump_stack+0x4e/0x79 [ 17.367984] [<ffffffff95062685>] warn_slowpath_common+0x95/0xae [ 17.367992] [<ffffffff953c7a7b>] ? intel_check_page_flip+0xb5/0xfb [ 17.368001] [<ffffffff950626e1>] warn_slowpath_fmt+0x43/0x4b [ 17.368011] [<ffffffff953b7ab4>] ? __intel_pageflip_stall_check+0xbf/0xf4 [ 17.368020] [<ffffffff953c7a7b>] intel_check_page_flip+0xb5/0xfb [ 17.368030] [<ffffffff9536f7fc>] valleyview_pipestat_irq_handler+0x10d/0x172 [ 17.368039] [<ffffffff95372a01>] cherryview_irq_handler+0xc0/0xfb [ 17.368048] [<ffffffff9509b78e>] handle_irq_event_percpu+0x27/0xe0 [ 17.368055] [<ffffffff9509b883>] handle_irq_event+0x3c/0x5c [ 17.368064] [<ffffffff9509e09e>] handle_edge_irq+0xa0/0xc0 [ 17.368073] [<ffffffff95004db8>] handle_irq+0x1a/0x1e [ 17.368080] [<ffffffff9500482f>] do_IRQ+0x52/0xcd [ 17.368091] [<ffffffff9557f6bf>] common_interrupt+0x7f/0x7f [ 17.368102] [<ffffffff9506576e>] ? __do_softirq+0x6b/0x1b3 [ 17.368111] [<ffffffff95065a0f>] irq_exit+0x36/0x7b [ 17.368119] [<ffffffff95081001>] scheduler_ipi+0x92/0x97 [ 17.368129] [<ffffffff95028288>] smp_reschedule_interrupt+0x15/0x17 [ 17.368138] [<ffffffff9557fd7f>] reschedule_interrupt+0x7f/0x90 [ 17.368143] <EOI> [<ffffffff954a9ab9>] ? cpuidle_enter_state+0xe8/0x13d [ 17.368161] [<ffffffff954a9a80>] ? cpuidle_enter_state+0xaf/0x13d [ 17.368170] [<ffffffff954a9b30>] cpuidle_enter+0x12/0x14 [ 17.368179] [<ffffffff95090437>] call_cpuidle+0x47/0x4c [ 17.368188] [<ffffffff950905da>] cpu_startup_entry+0x19e/0x209 [ 17.368197] [<ffffffff95028a65>] start_secondary+0x140/0x142 [ 17.368205] ---[ end trace 505f7d7f509db0df ]---
Kernel: 4.3-rc6 OS: Ubuntu 15/04 (Intel graphic drivers and Mesa from http://ppa.launchpad.net/kubuntu-ci/stable/ubuntu)
*** This bug has been marked as a duplicate of bug 91717 ***
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