[Bug 94101] System hangs for seconds repeatedly and sometimes crashes

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=94101

--- Comment #17 from Roman <roman.susi at kolumbus.fi> ---
Same happens here on Ubuntu 16.04,
4.4.0-31-generic #50-Ubuntu SMP Wed Jul 13 00:07:12 UTC 2016 x86_64 x86_64
x86_64 GNU/Linux

but only after connecting external monitor.

[57297.949549] WARNING: CPU: 0 PID: 3252 at
/build/linux-dcxD3m/linux-4.4.0/ubuntu/i915/intel_display.c:13444
intel_atomic_commit+0xd2b/0xdc0 [i915_bpo]()
[57297.949551] WARN_ON(!lret)
[57297.949552] Modules linked in:
[57297.949554]  vhost_net vhost macvtap macvlan rfcomm xt_CHECKSUM
iptable_mangle ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_nat_ipv4
nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack ipt_REJECT
nf_reject_ipv4 xt_tcpudp bridge stp llc ebtable_filter ebtables ip6table_filter
ip6_tables iptable_filter ip_tables x_tables bnep drbg ansi_cprng dm_crypt
nls_iso8859_1 snd_hda_codec_hdmi intel_rapl hid_multitouch x86_pkg_temp_thermal
intel_powerclamp coretemp kvm_intel kvm irqbypass i2c_designware_platform
crct10dif_pclmul i2c_designware_core dell_led crc32_pclmul dell_wmi
snd_hda_codec_realtek snd_hda_codec_generic uvcvideo videobuf2_vmalloc
videobuf2_memops videobuf2_v4l2 videobuf2_core v4l2_common snd_hda_intel
videodev snd_hda_codec btusb media btrtl snd_hda_core aesni_intel snd_hwdep
[57297.949584]  aes_x86_64 lrw input_leds snd_pcm gf128mul dell_laptop
snd_seq_midi snd_seq_midi_event snd_rawmidi glue_helper dcdbas snd_seq brcmfmac
ablk_helper snd_seq_device joydev snd_timer serio_raw cryptd brcmutil snd
cfg80211 rtsx_pci_ms memstick soundcore hci_uart acpi_als btbcm btqca idma64
virt_dma btintel kfifo_buf intel_lpss_acpi intel_lpss_pci mei_me industrialio
bluetooth mei intel_lpss int3403_thermal dell_smo8800 processor_thermal_device
int3402_thermal mac_hid shpchp intel_hid int3400_thermal acpi_thermal_rel
acpi_pad sparse_keymap int340x_thermal_zone intel_soc_dts_iosf parport_pc ppdev
lp sunrpc parport autofs4 hid_generic usbhid rtsx_pci_sdmmc i915_bpo nouveau
psmouse rtsx_pci mxm_wmi intel_ips ttm i2c_algo_bit ahci drm_kms_helper libahci
syscopyarea sysfillrect sysimgblt fb_sys_fops
[57297.949618]  drm i2c_hid hid pinctrl_sunrisepoint wmi pinctrl_intel video
fjes
[57297.949624] CPU: 0 PID: 3252 Comm: Xorg Tainted: G        W      
4.4.0-31-generic #50-Ubuntu
[57297.949625] Hardware name: Dell Inc. XPS 15 9550/0X2P13, BIOS 01.02.00
04/07/2016
[57297.949627]  0000000000000286 00000000f439f420 ffff88003570bb28
ffffffff813f1143
[57297.949629]  ffff88003570bb70 ffffffffc041e478 ffff88003570bb60
ffffffff81081102
[57297.949631]  ffff8800354b6800 0000000000000000 0000000000000000
ffff8802ad49a000
[57297.949633] Call Trace:
[57297.949639]  [<ffffffff813f1143>] dump_stack+0x63/0x90
[57297.949642]  [<ffffffff81081102>] warn_slowpath_common+0x82/0xc0
[57297.949644]  [<ffffffff8108119c>] warn_slowpath_fmt+0x5c/0x80
[57297.949648]  [<ffffffff810c3805>] ? finish_wait+0x55/0x70
[57297.949669]  [<ffffffffc03b365b>] intel_atomic_commit+0xd2b/0xdc0 [i915_bpo]
[57297.949672]  [<ffffffff810c3ca0>] ? wake_atomic_t_function+0x60/0x60
[57297.949688]  [<ffffffffc00a7c17>] drm_atomic_commit+0x37/0x60 [drm]
[57297.949695]  [<ffffffffc0111b16>] drm_atomic_helper_set_config+0x76/0xb0
[drm_kms_helper]
[57297.949706]  [<ffffffffc0096e42>] drm_mode_set_config_internal+0x62/0x100
[drm]
[57297.949719]  [<ffffffffc009b362>] drm_mode_setcrtc+0x3d2/0x4f0 [drm]
[57297.949727]  [<ffffffffc008c742>] drm_ioctl+0x152/0x540 [drm]
[57297.949737]  [<ffffffffc009af90>] ? drm_mode_setplane+0x1b0/0x1b0 [drm]
[57297.949740]  [<ffffffff81220c0f>] do_vfs_ioctl+0x29f/0x490
[57297.949743]  [<ffffffff8108e351>] ? __set_task_blocked+0x41/0xa0
[57297.949745]  [<ffffffff81090ce6>] ? __set_current_blocked+0x36/0x60
[57297.949747]  [<ffffffff81220e79>] SyS_ioctl+0x79/0x90
[57297.949750]  [<ffffffff8182db32>] entry_SYSCALL_64_fastpath+0x16/0x71
[57297.949751] ---[ end trace 13b6d7272bfbae7a ]---
[57302.497760] [drm] stuck on render ring
[57302.498121] [drm] GPU HANG: ecode 9:0:0xfffffffe, reason: Ring hung, action:
reset
[57302.500629] drm/i915: Resetting chip after gpu hang
[57304.497798] [drm] RC6 on
[57310.497734] [drm] stuck on render ring
[57310.497890] [drm] GPU HANG: ecode 9:0:0xfffffffe, in compiz [25995], reason:
Ring hung, action: reset
[57310.500232] drm/i915: Resetting chip after gpu hang
[57311.517743] [drm] RC6 on
[57318.497995] [drm] stuck on render ring
[57318.498381] [drm] GPU HANG: ecode 9:0:0xfffffffe, reason: Ring hung, action:
reset
[57318.500123] drm/i915: Resetting chip after gpu hang
[57319.517916] [drm] RC6 on

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