[Bug 91655] New: [bsw hdmi] sporadic vblank timeouts

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=91655

            Bug ID: 91655
           Summary: [bsw hdmi] sporadic vblank timeouts
           Product: DRI
           Version: DRI git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: chris at chris-wilson.co.uk
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

[20948.578406] WARNING: CPU: 0 PID: 1128 at drivers/gpu/drm/drm_irq.c:1180
drm_wait_one_vblank+0x144/0x190()
[20948.578415] vblank wait timed out on crtc 2
[20948.578429] CPU: 0 PID: 1128 Comm: Xorg Tainted: G        W       4.2.0-rc6+
#53
[20948.578436] Hardware name:                  /NUC5CPYB, BIOS
PYBSWCEL.86A.0027.2015.0507.1758 05/07/2015
[20948.578445]  ffffffff81ac807b ffff880275393a58 ffffffff815f9ab3
0000000000000007
[20948.578460]  ffff880275393aa8 ffff880275393a98 ffffffff8106e175
ffff880275393af8
[20948.578472]  ffff880277adf800 0000000000000002 000000000012ddbc
ffff88007144eb28
[20948.578485] Call Trace:
[20948.578504]  [<ffffffff815f9ab3>] dump_stack+0x45/0x57
[20948.578516]  [<ffffffff8106e175>] warn_slowpath_common+0x85/0xc0
[20948.578538]  [<ffffffff8106e226>] warn_slowpath_fmt+0x46/0x50
[20948.578558]  [<ffffffff810a37e9>] ? finish_wait+0x59/0x70
[20948.578574]  [<ffffffff81343cf4>] drm_wait_one_vblank+0x144/0x190
[20948.578592]  [<ffffffff810a32a0>] ? __wake_up_common+0x90/0x90
[20948.578612]  [<ffffffff813d5280>] intel_atomic_commit+0x3a0/0x1390
[20948.578631]  [<ffffffff8135d2c4>] ? drm_atomic_check_only+0x1d4/0x590
[20948.578648]  [<ffffffff8135c6c1>] ?
drm_atomic_get_connector_state+0x51/0x120
[20948.578663]  [<ffffffff8135d6b7>] drm_atomic_commit+0x37/0x60
[20948.578678]  [<ffffffff8133b9b4>] drm_atomic_helper_set_config+0x1c4/0x430
[20948.578697]  [<ffffffff8134cea6>] drm_mode_set_config_internal+0x66/0x100
[20948.578713]  [<ffffffff8134d329>] drm_mode_setcrtc+0x189/0x4e0
[20948.578731]  [<ffffffff813423d6>] drm_ioctl+0x196/0x620
[20948.578752]  [<ffffffff811618fa>] do_vfs_ioctl+0x2ba/0x490
[20948.578772]  [<ffffffff811531d8>] ? __sb_end_write+0x38/0x70
[20948.578790]  [<ffffffff81150585>] ? vfs_write+0x175/0x190
[20948.578806]  [<ffffffff81161b11>] SyS_ioctl+0x41/0x70
[20948.578824]  [<ffffffff8160035b>] entry_SYSCALL_64_fastpath+0x16/0x6e
[20948.578838] ---[ end trace 4e73fc07bd8838ba ]---

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