[Bug 93120] New: [SNB BAT IGT regression] WARN_ON(was_visible)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=93120

            Bug ID: 93120
           Summary: [SNB BAT IGT regression] WARN_ON(was_visible)
           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: daniel at ffwll.ch
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

[   66.785318] ------------[ cut here ]------------
[   66.785338] WARNING: CPU: 0 PID: 5768 at
drivers/gpu/drm/i915/intel_display.c:11740
intel_plane_atomic_calc_changes+0x5af/0x790 [i915]()
[   66.785340] WARN_ON(was_visible)
[   66.785341] Modules linked in:
[   66.785342]  snd_hda_codec_hdmi x86_pkg_temp_thermal snd_hda_codec_realtek
intel_powerclamp snd_hda_codec_generic coretemp crct10dif_pclmul crc32_pclmul
i915 snd_hda_intel snd_hda_codec snd_hwdep snd_hda_core snd_pcm lpc_ich mei_me
mei broadcom bcm_phy_lib tg3 ptp pps_core
[   66.785356] CPU: 0 PID: 5768 Comm: kms_pipe_crc_ba Not tainted
4.4.0-rc2-gfxbench+ #1
[   66.785357] Hardware name: Dell Inc. XPS 8300  /0Y2MRG, BIOS A06 10/17/2011
[   66.785358]  ffffffffa01d56d0 ffff880095d379f8 ffffffff813df18c
ffff880095d37a40
[   66.785361]  ffff880095d37a30 ffffffff810747b1 0000000000000001
ffff88012997b4d0
[   66.785363]  ffff8800c1ae33d8 ffff8800bf33ba18 0000000000000001
ffff880095d37a90
[   66.785366] Call Trace:
[   66.785369]  [<ffffffff813df18c>] dump_stack+0x4e/0x82
[   66.785372]  [<ffffffff810747b1>] warn_slowpath_common+0x81/0xc0
[   66.785373]  [<ffffffff81074837>] warn_slowpath_fmt+0x47/0x50
[   66.785385]  [<ffffffffa017012f>]
intel_plane_atomic_calc_changes+0x5af/0x790 [i915]
[   66.785388]  [<ffffffff8150a93a>] ? drm_rect_clip_scaled+0x10a/0x110
[   66.785390]  [<ffffffff814e1c63>] ? drm_plane_helper_check_update+0xb3/0x1d0
[   66.785401]  [<ffffffffa0150a8b>] intel_plane_atomic_check+0x13b/0x1f0
[i915]
[   66.785403]  [<ffffffff814e9703>] drm_atomic_helper_check_planes+0x43/0x1d0
[   66.785415]  [<ffffffffa016a0a1>] intel_atomic_check+0x301/0x1090 [i915]
[   66.785416]  [<ffffffff8150b5c0>] ? drm_modeset_lock+0x30/0xf0
[   66.785418]  [<ffffffff8150cf42>] drm_atomic_check_only+0x142/0x5e0
[   66.785420]  [<ffffffff8150c82b>] ?
drm_atomic_set_crtc_for_connector+0x1b/0x90
[   66.785421]  [<ffffffff8150d3f2>] drm_atomic_commit+0x12/0x50
[   66.785424]  [<ffffffff814ea305>] drm_atomic_helper_set_config+0x75/0xb0
[   66.785425]  [<ffffffff814fc010>] drm_mode_set_config_internal+0x60/0x110
[   66.785427]  [<ffffffff81500c26>] drm_mode_setcrtc+0x186/0x4e0
[   66.785429]  [<ffffffff814f2f6d>] drm_ioctl+0x13d/0x590
[   66.785431]  [<ffffffff81500aa0>] ? drm_mode_setplane+0x1b0/0x1b0
[   66.785433]  [<ffffffff811d4d9c>] do_vfs_ioctl+0x2fc/0x550
[   66.785435]  [<ffffffff8118d60a>] ? vm_munmap+0x4a/0x60
[   66.785437]  [<ffffffff811e080a>] ? __fget_light+0x6a/0x90
[   66.785438]  [<ffffffff811d502c>] SyS_ioctl+0x3c/0x70
[   66.785441]  [<ffffffff81797d1b>] entry_SYSCALL_64_fastpath+0x16/0x73
[   66.785442] ---[ end trace 7c5af83250defaf2 ]---


This is a regression since CI build 844

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