[Bug 98728] New: gpu will hang arbitrarily and repeatedly (no 3d, just 2d)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=98728

            Bug ID: 98728
           Summary: gpu will hang arbitrarily and repeatedly (no 3d, just
                    2d)
           Product: DRI
           Version: XOrg git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: major
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: nullity.research at gmail.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 127968
  --> https://bugs.freedesktop.org/attachment.cgi?id=127968&action=edit
contents of /sys/class/drm/card0/error

Nov 14 22:02:50 zephyr kernel: [42515.310739] ------------[ cut here
]------------
Nov 14 22:02:50 zephyr kernel: [42515.310747] WARNING: CPU: 0 PID: 0 at
drivers/gpu/drm/i915/intel_lrc.c:506 execlists_check_remove_request+0x5e/0x120
Nov 14 22:02:50 zephyr kernel: [42515.310747] WARN_ON(!head_req ||
(head_req->ctx_hw_id != ctx_id))
Nov 14 22:02:50 zephyr kernel: [42515.310750] CPU: 0 PID: 0 Comm: swapper/0 Not
tainted 4.8.6-zephyr #20
Nov 14 22:02:50 zephyr kernel: [42515.310751] Hardware name: LENOVO
20BSCTO1WW/20BSCTO1WW, BIOS N14ET32W (1.10 ) 08/13/2015
Nov 14 22:02:50 zephyr kernel: [42515.310752]  0000000000000000
ffffffff813e49c8 ffff88024dc03e20 0000000000000000
Nov 14 22:02:50 zephyr kernel: [42515.310755]  ffffffff8110b07f
ffff880243643b38 ffff88024dc03e70 ffff88024dc03ea8
Nov 14 22:02:50 zephyr kernel: [42515.310758]  0000000000000008
0000000000000000 ffff88024dc03ea8 ffffffff8110b0ea
Nov 14 22:02:50 zephyr kernel: [42515.310761] Call Trace:
Nov 14 22:02:50 zephyr kernel: [42515.310761]  <IRQ>  [<ffffffff813e49c8>] ?
dump_stack+0x46/0x5e
Nov 14 22:02:50 zephyr kernel: [42515.310769]  [<ffffffff8110b07f>] ?
__warn+0xaf/0xd0
Nov 14 22:02:50 zephyr kernel: [42515.310771]  [<ffffffff8110b0ea>] ?
warn_slowpath_fmt+0x4a/0x50
Nov 14 22:02:50 zephyr kernel: [42515.310773]  [<ffffffff8153cd4e>] ?
execlists_check_remove_request+0x5e/0x120
Nov 14 22:02:50 zephyr kernel: [42515.310774]  [<ffffffff8153d8f6>] ?
intel_lrc_irq_handler+0x166/0x270
Nov 14 22:02:50 zephyr kernel: [42515.310777]  [<ffffffff8110eb7b>] ?
tasklet_action+0x4b/0xa0
Nov 14 22:02:50 zephyr kernel: [42515.310779]  [<ffffffff8110ef07>] ?
__do_softirq+0xf7/0x200
Nov 14 22:02:50 zephyr kernel: [42515.310781]  [<ffffffff8110f140>] ?
irq_exit+0x90/0xa0
Nov 14 22:02:50 zephyr kernel: [42515.310784]  [<ffffffff8105a5ba>] ?
do_IRQ+0x4a/0xc0
Nov 14 22:02:50 zephyr kernel: [42515.310787]  [<ffffffff8193b249>] ?
common_interrupt+0x89/0x89
Nov 14 22:02:50 zephyr kernel: [42515.310787]  <EOI>  [<ffffffff817118dd>] ?
cpuidle_enter_state+0x13d/0x1f0
Nov 14 22:02:50 zephyr kernel: [42515.310793]  [<ffffffff817118d9>] ?
cpuidle_enter_state+0x139/0x1f0
Nov 14 22:02:50 zephyr kernel: [42515.310795]  [<ffffffff8114032a>] ?
cpu_startup_entry+0x1ba/0x250
Nov 14 22:02:50 zephyr kernel: [42515.310798]  [<ffffffff820c0ea6>] ?
start_kernel+0x38b/0x393
Nov 14 22:02:50 zephyr kernel: [42515.310800] ---[ end trace f2dd8b513381f3b4
]---

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