[Bug 99884] New: Intel Iris GPU Hang

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=99884

            Bug ID: 99884
           Summary: Intel Iris GPU Hang
           Product: DRI
           Version: XOrg git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: bafco001 at btinternet.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Periodically getting a GPU reset, usually when handling images or video.

This is on an Intel Skull Canyon NUC, with an Intel i7-6770 processor and Intel
Iris GPU

Jan 25 16:35:25 linux kernel: [drm] RC6 on
Jan 25 16:35:24 linux kernel: drm/i915: Resetting chip after gpu hang
Jan 25 16:35:24 linux kernel: ---[ end trace 414d7eec39f88711 ]---
Jan 25 16:35:24 linux kernel:  [<ffffffff8109d240>] ? kthread_park+0x50/0x50
Jan 25 16:35:24 linux kernel: Leftover inexact backtrace:
Jan 25 16:35:24 linux kernel: 
Jan 25 16:35:24 linux kernel: DWARF2 unwinder stuck at ret_from_fork+0x3f/0x70
Jan 25 16:35:24 linux kernel:  [<ffffffff8160ac8f>] ret_from_fork+0x3f/0x70
Jan 25 16:35:24 linux kernel:  [<ffffffff8109d308>] kthread+0xc8/0xe0
Jan 25 16:35:24 linux kernel:  [<ffffffff81097d26>] worker_thread+0x116/0x4b0
Jan 25 16:35:24 linux kernel:  [<ffffffff810971e5>]
process_one_work+0x155/0x440
Jan 25 16:35:24 linux kernel:  [<ffffffffa032bb02>]
intel_mmio_flip_work_func+0x382/0x3d0 [i915]
Jan 25 16:35:24 linux kernel:  [<ffffffff8107e8bc>] warn_slowpath_fmt+0x4c/0x50
Jan 25 16:35:24 linux kernel:  [<ffffffff8107e841>]
warn_slowpath_common+0x81/0xb0
Jan 25 16:35:24 linux kernel:  [<ffffffff81327b17>] dump_stack+0x5c/0x85
Jan 25 16:35:24 linux kernel:  [<ffffffff8101b011>] show_stack+0x21/0x40
Jan 25 16:35:24 linux kernel:  [<ffffffff8101a26a>]
show_stack_log_lvl+0xfa/0x180
Jan 25 16:35:24 linux kernel:  [<ffffffff81019ea9>] dump_trace+0x59/0x320
Jan 25 16:35:24 linux kernel: Call Trace:
Jan 25 16:35:24 linux kernel:  ffffffff8107e8bc ffffffffa039f295
Jan 25 16:35:24 linux kernel:  0000000000000000
Jan 25 16:35:24 linux kernel:  ffffe8ffffdc1200
Jan 25 16:35:24 linux kernel:  ffff88082dbe3e40 ffff8805187e7de0
ffff8808bedd5440
Jan 25 16:35:24 linux kernel:  ffffffff8107e841
Jan 25 16:35:24 linux kernel:  0000000000000000 ffffffff81327b17
ffff8805187e7d90 ffffffffa038fdf8
Jan 25 16:35:24 linux kernel: Workqueue: events intel_mmio_flip_work_func
[i915]
Jan 25 16:35:24 linux kernel: Hardware name:                  /NUC6i7KYB, BIOS
KYSKLi70.86A.0042.2016.0929.1933 09/29/2016
Jan 25 16:35:24 linux kernel: CPU: 7 PID: 6802 Comm: kworker/7:2 Not tainted
4.4.36-8-default #1
Jan 25 16:35:24 linux kernel:  mmc_core libata usbcore usb_common drm video
i2c_hid button sg scsi_mod efivarfs autofs4
Jan 25 16:35:24 linux kernel:  fb_sys_fops
Jan 25 16:35:24 linux kernel:  ir_lirc_codec ir_mce_kbd_decoder
ir_sharp_decoder lirc_dev btusb ir_xmp_decoder ir_sanyo_decoder ir_sony_decoder
btrtl drbg ir_jvc_decoder ir_rc5_decoder ir_rc6_decoder mac80211 snd_timer
ansi_cprng joydev snd
Jan 25 16:35:24 linux kernel: Modules linked in: dm_crypt dm_mod uas
usb_storage fuse cmac ecb rfcomm nf_log_ipv6 xt_pkttype nf_log_ipv4
nf_log_common xt_LOG xt_limit af_packet snd_hda_codec_hdmi iscsi_ibft
iscsi_boot_sysfs ip6t_REJECT nf_r
Jan 25 16:35:24 linux kernel: WARN_ON(__i915_wait_request(mmio_flip->req,
mmio_flip->crtc->reset_counter, false, NULL, &mmio_flip->i915->rps.mmioflips))
Jan 25 16:35:24 linux kernel: WARNING: CPU: 7 PID: 6802 at
../drivers/gpu/drm/i915/intel_display.c:11294
intel_mmio_flip_work_func+0x382/0x3d0 [i915]()
Jan 25 16:35:24 linux kernel: ------------[ cut here ]------------
Jan 25 16:35:24 linux kernel: [drm] GPU crash dump saved to
/sys/class/drm/card0/error
Jan 25 16:35:24 linux kernel: [drm] The gpu crash dump is required to analyze
gpu hangs, so please always attach it.
Jan 25 16:35:24 linux kernel: [drm] drm/i915 developers can then reassign to
the right component if it's not a kernel issue.
Jan 25 16:35:24 linux kernel: [drm] Please file a _new_ bug report on
bugs.freedesktop.org against DRI -> DRM/Intel
Jan 25 16:35:24 linux kernel: [drm] GPU hangs can indicate a bug anywhere in
the entire gfx stack, including userspace.
Jan 25 16:35:24 linux kernel: [drm] GPU HANG: ecode 9:0:0x85df7fff, in kwin_x11
[1982], reason: Ring hung, action: reset
Jan 25 16:35:24 linux kernel: [drm] stuck on render ring

Jan 25 16:34:06 linux kernel: [drm:gen8_irq_handler [i915]] *ERROR* CPU pipe A
FIFO underrun
Jan 25 16:34:06 linux kernel: [drm:intel_dp_link_training_channel_equalization
[i915]] *ERROR* failed to start channel equalization
Jan 25 16:34:06 linux kernel: [drm:intel_dp_link_training_clock_recovery
[i915]] *ERROR* failed to enable link training

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