[Bug 77436] KDE Konsole very slow scrolling with TearFree and QT graphics system native

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=77436

--- Comment #24 from Chris Wilson <chris at chris-wilson.co.uk> ---
Hmm.

[  253.551569] Xorg            D ffff88021fa13800     0  1348   1302 0x00400004
[  253.551571]  ffff880036459a68 0000000000000082 ffff8802143d2050
ffff880036459fd8
[  253.551572]  0000000000013800 0000000000013800 ffff8802143d2050
ffff88021fa140b8
[  253.551573]  ffff88021165c000 0000000000000001 0000000000000000
ffff8802143d2050
[  253.551575] Call Trace:
[  253.551577]  [<ffffffff815cdfb8>] io_schedule+0x98/0x130
[  253.551589]  [<ffffffffa0117915>] __wait_seqno+0x315/0x580 [i915]
[  253.551606]  [<ffffffffa0118a6a>] i915_gem_object_wait_rendering+0x3a/0x70
[i915]
[  253.551622]  [<ffffffffa0118f3b>]
i915_gem_object_finish_gpu.part.50+0xb/0x20 [i915]
[  253.551638]  [<ffffffffa011bef8>] i915_vma_unbind+0x1d8/0x2b0 [i915]
[  253.551657]  [<ffffffffa011ca5f>] i915_gem_object_pin+0x17f/0x750 [i915]
[  253.551676]  [<ffffffffa011d917>]
i915_gem_object_pin_to_display_plane+0xc7/0x190 [i915]
[  253.551696]  [<ffffffffa013608f>] intel_pin_and_fence_fb_obj+0x9f/0x140
[i915]
[  253.551726]  [<ffffffffa013617f>] intel_gen7_queue_flip+0x4f/0x300 [i915]
[  253.551756]  [<ffffffffa013e819>] intel_crtc_page_flip+0x1d9/0x3c0 [i915]
[  253.551789]  [<ffffffffa0096bde>] drm_mode_page_flip_ioctl+0x15e/0x2d0 [drm]
[  253.551807]  [<ffffffffa008696d>] drm_ioctl+0x46d/0x570 [drm]
[  253.551811]  [<ffffffff811a23f7>] do_vfs_ioctl+0x2d7/0x4b0
[  253.551817]  [<ffffffff811a2650>] SyS_ioctl+0x80/0xa0
[  253.551820]  [<ffffffff815d807d>] system_call_fastpath+0x1a/0x1f
[  253.551822]  [<00007fe5cdca91e7>] 0x7fe5cdca91e6


[  257.990590] Xorg            D ffff88021fa13800     0  1348   1302 0x00400004
[  257.990591]  ffff880036459a68 0000000000000082 ffff8802143d2050
ffff880036459fd8
[  257.990593]  0000000000013800 0000000000013800 ffff8802143d2050
ffff88021fa140b8
[  257.990594]  ffff88021165c000 0000000000000001 0000000000000000
ffff8802143d2050
[  257.990596] Call Trace:
[  257.990598]  [<ffffffff815cdfb8>] io_schedule+0x98/0x130
[  257.990614]  [<ffffffffa0117915>] __wait_seqno+0x315/0x580 [i915]
[  257.990634]  [<ffffffffa0118a6a>] i915_gem_object_wait_rendering+0x3a/0x70
[i915]
[  257.990652]  [<ffffffffa0118f3b>]
i915_gem_object_finish_gpu.part.50+0xb/0x20 [i915]
[  257.990671]  [<ffffffffa011bef8>] i915_vma_unbind+0x1d8/0x2b0 [i915]
[  257.990693]  [<ffffffffa011ca5f>] i915_gem_object_pin+0x17f/0x750 [i915]
[  257.990712]  [<ffffffffa011d917>]
i915_gem_object_pin_to_display_plane+0xc7/0x190 [i915]
[  257.990735]  [<ffffffffa013608f>] intel_pin_and_fence_fb_obj+0x9f/0x140
[i915]
[  257.990767]  [<ffffffffa013617f>] intel_gen7_queue_flip+0x4f/0x300 [i915]
[  257.990802]  [<ffffffffa013e819>] intel_crtc_page_flip+0x1d9/0x3c0 [i915]
[  257.990836]  [<ffffffffa0096bde>] drm_mode_page_flip_ioctl+0x15e/0x2d0 [drm]
[  257.990859]  [<ffffffffa008696d>] drm_ioctl+0x46d/0x570 [drm]
[  257.990864]  [<ffffffff811a23f7>] do_vfs_ioctl+0x2d7/0x4b0
[  257.990870]  [<ffffffff811a2650>] SyS_ioctl+0x80/0xa0
[  257.990872]  [<ffffffff815d807d>] system_call_fastpath+0x1a/0x1f
[  257.990875]  [<00007fe5cdca91e7>] 0x7fe5cdca91e6

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