[Bug 89467] [ivb gt2] GPU hangs in 4.0: where did my seqno writes go?

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=89467

--- Comment #57 from Alin M Elena <alinm.elena at gmail.com> ---
with dri enabled still issues.. the same as before... in addition
[  742.562429] [drm] GPU HANG: ecode 7:0:0x97f4ffff, in chromium [2431],
reason: Ring hung, action: reset
[  742.562440] ------------[ cut here ]------------
[  742.562486] WARNING: CPU: 1 PID: 2308 at
/home/alin/lavello/linux/drivers/gpu/drm/i915/intel_display.c:9574
intel_mmio_flip_work_func+0x2ea/0x310 [i915]()
[  742.562487] WARN_ON(__i915_wait_request(mmio_flip->req, crtc->reset_counter,
false, NULL, NULL) != 0)
[  742.562489] Modules linked in:
[  742.562490]  ctr ccm fuse ebtable_filter ebtables ip6table_filter ip6_tables
iptable_filter ip_tables x_tables af_packet bnep dell_wmi sparse_keymap
nls_iso8859_1 nls_cp437 vfat fat arc4 ath9k ath9k_common ath9k_hw
snd_hda_codec_hdmi iTCO_wdt ath iTCO_vendor_support snd_hda_codec_realtek
snd_hda_codec_generic mac80211 snd_hda_intel snd_hda_controller snd_hda_codec
snd_hwdep snd_pcm x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel
snd_timer kvm dm_mod snd crct10dif_pclmul ath3k btusb crc32_pclmul cfg80211
dell_laptop crc32c_intel uvcvideo dcdbas bluetooth ghash_clmulni_intel
aesni_intel videobuf2_vmalloc aes_x86_64 videobuf2_memops glue_helper
videobuf2_core lrw gf128mul ablk_helper rndis_host v4l2_common cryptd cdc_ether
videodev usbnet mei_me joydev mii rfkill mei serio_raw pcspkr lpc_ich
[  742.562532]  i2c_i801 shpchp mfd_core soundcore tpm_tis tpm wmi thermal
battery processor ac efivarfs xhci_pci xhci_hcd i915 i2c_algo_bit
drm_kms_helper drm video button sg
[  742.562544] CPU: 1 PID: 2308 Comm: kworker/1:1 Tainted: G     U         
4.0.0-rc3-1.gf264c86-desktop+ #1
[  742.562545] Hardware name: Dell Inc.          XPS L322X/0PJHXN, BIOS A10
08/28/2013
[  742.562561] Workqueue: events intel_mmio_flip_work_func [i915]
[  742.562563]  ffffffffa0193448 ffff8800b26a7ce8 ffffffff81678e34
0000000000000000
[  742.562565]  ffff8800b26a7d38 ffff8800b26a7d28 ffffffff810657aa
ffff880235b70000
[  742.562568]  ffff88003f8f68b0 ffff8800b3fb9f40 ffff88003f8f6000
ffffe8ffffc41900
[  742.562570] Call Trace:
[  742.562577]  [<ffffffff81678e34>] dump_stack+0x4c/0x6e
[  742.562582]  [<ffffffff810657aa>] warn_slowpath_common+0x8a/0xc0
[  742.562585]  [<ffffffff81065826>] warn_slowpath_fmt+0x46/0x50
[  742.562602]  [<ffffffffa012e06a>] intel_mmio_flip_work_func+0x2ea/0x310
[i915]
[  742.562605]  [<ffffffff810893ed>] ? finish_task_switch+0x5d/0x100
[  742.562609]  [<ffffffff8107dfb5>] process_one_work+0x145/0x440
[  742.562611]  [<ffffffff8107e3d1>] worker_thread+0x121/0x450
[  742.562614]  [<ffffffff8107e2b0>] ? process_one_work+0x440/0x440
[  742.562616]  [<ffffffff810836f9>] kthread+0xc9/0xe0
[  742.562629]  [<ffffffff81083630>] ? kthread_create_on_node+0x180/0x180
[  742.562631]  [<ffffffff8167f798>] ret_from_fork+0x58/0x90
[  742.562634]  [<ffffffff81083630>] ? kthread_create_on_node+0x180/0x180
[  742.562636] ---[ end trace 5268aa6c476a71d0 ]---

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