1492250 - An image and button backgrounds do not stick to their text

Status: VERIFIED FIXED

(Core :: Graphics: WebRender, defect, P1)

Description

[Darkspirit]

Attachment: 2018-09-18_21-43-06.mp4

Debian Testing, GTX 1060

Unknown regression date before 2018-01-15.

bug 1426386 improved the situation and left today's behavior.

mozregression --find-fix --bad 2018-01-15 --good 2018-02-15 --pref gfx.webrender.all:true -a https://scotch.io/tutorials/5-tips-to-write-better-conditionals-in-javascript
> 10:19.69 INFO: First good revision: 3dea9196184747f4987cbc95d7d11b8e934a3d11
> 10:19.69 INFO: Last bad revision: de52bf2201a6992df26d0e7c7c1223266bcda4f9
> 10:19.69 INFO: Pushlog:
> https://hg.mozilla.org/integration/autoland/pushloghtml?fromchange=de52bf2201a6992df26d0e7c7c1223266bcda4f9&tochange=3dea9196184747f4987cbc95d7d11b8e934a3d11

2018-01-22
> 3dea91961847	Kartikaya Gupta — Bug 1426386 - Add reftests for position:sticky items inside a transform. r=mstange
> be2548e479a6	Kartikaya Gupta — Bug 1426386 - Split the transform sent to webrender back into the transform and positioning components. r=mstange
> 2254ae8cf040	Kartikaya Gupta — Bug 1426386 - Expose WR stacking context bounds via StackingContextHelper. r=mstange

Comment 1

[Glenn Watson [:gw]]

I can reproduce this. Most of the time I reproduce it, it corrects itself eventually - which might be some kind of scrolling / APZ / animation out of sync issue.

But perhaps 1 / 20 or so scrolls, it appears to stay in the wrong position, even when I mouse over the URL bar to force a new display list.

I'll do some more investigation to see if it looks like the incoming display list is wrong, or if WR is positioning stuff incorrectly.

Comment 2

[Darkspirit]

This feels similar to what bug 1424686 has been.

Comment 3

[Glenn Watson [:gw]]

Interesting - I can do a WR scene capture of the bug in Gecko, and it replays correctly when I load it in wrench. This suggests that there might be a bug with something getting changed in the CPU side state, and the GPU cache not being invalidated / updated correctly.

Comment 4

[Glenn Watson [:gw]]

I think this is a bug in the display list provided by Gecko to WR. The relevant part of the scene capture is shown below for reference. Effectively, we have the following:

Push a sticky frame - its ID is Spatial(5, (1, 3))
Push a box shadow - positioned by Spatial(5, (1, 3))
Push a clip node - ID is Clip(5, (1, 3)), positioned by Spatial(4, (1, 3))
Push an image - positioned by Clip(5, (1, 3))

1) The box shadow has its positioning node set as the sticky frame, and it appears to work correctly.
2) A clip node is pushed, but it's positioned by an ancestor of the sticky frame.
3) An image is pushed, positioned by the clip node ID.

The clip node ID doesn't provide positioning itself, so the positioning for the image is inherited from the clip's positioning node, which is not the sticky frame (it's an ancestor).

I *think* the bug is that the clip node in this case should have the sticky frame as its positioning node, but I don't know the Gecko code well enough to confirm / fix this.

Who'd be a good candidate to look into the Gecko side of this?

---

                (
                    item: StickyFrame((
                        id: Spatial(5, (1, 3)),
                        margins: (Some(27), None, None, None),
                        vertical_offset_bounds: (
                            min: 0,
                            max: 783.3499755859375,
                        ),
                        horizontal_offset_bounds: (
                            min: 0,
                            max: 0,
                        ),
                        previously_applied_offset: (0, 0),
                    )),
                    clip_and_scroll: (
                        scroll_node_id: Spatial(4, (1, 3)),
                        clip_node_id: None,
                    ),
                    info: (
                        rect: ((-21, -18), (282, 282)),
                        clip_rect: ((-21, -18), (282, 282)),
                        is_backface_visible: true,
                        tag: None,
                    ),
                ),// [35]
                (
                    item: BoxShadow((
                        box_bounds: ((-15, -15), (270, 270)),
                        offset: (0, 0),
                        color: (
                            r: 0.03921568766236305,
                            g: 0.03921568766236305,
                            b: 0.03921568766236305,
                            a: 0.10196079313755035,
                        ),
                        blur_radius: 0,
                        spread_radius: 1.5,
                        border_radius: (
                            top_left: (4.5, 4.5),
                            top_right: (4.5, 4.5),
                            bottom_left: (4.5, 4.5),
                            bottom_right: (4.5, 4.5),
                        ),
                        clip_mode: Outset,
                    )),
                    clip_and_scroll: (
                        scroll_node_id: Spatial(5, (1, 3)),
                        clip_node_id: None,
                    ),
                    info: (
                        rect: ((-15, -15), (270, 270)),
                        clip_rect: ((-21, -18), (282, 282)),
                        is_backface_visible: true,
                        tag: None,
                    ),
                ),// [39]
                (
                    item: Clip((
                        id: Clip(5, (1, 3)),
                        image_mask: None,
                    ), [
                        (
                            rect: ((-15, -15), (270, 270)),
                            radii: (
                                top_left: (4.5, 4.5),
                                top_right: (4.5, 4.5),
                                bottom_left: (4.5, 4.5),
                                bottom_right: (4.5, 4.5),
                            ),
                            mode: Clip,
                        ),// [0]
                    ]),
                    clip_and_scroll: (
                        scroll_node_id: Spatial(4, (1, 3)),
                        clip_node_id: None,
                    ),
                    info: (
                        rect: ((-15, -15), (270, 270)),
                        clip_rect: ((-15, -15), (270, 270)),
                        is_backface_visible: true,
                        tag: None,
                    ),
                ),// [41]
                (
                    item: Image((
                        image_key: ((4), 4),
                        stretch_size: (270, 270),
                        tile_spacing: (270, 270),
                        image_rendering: Auto,
                        alpha_type: PremultipliedAlpha,
                        color: (
                            r: 1,
                            g: 1,
                            b: 1,
                            a: 1,
                        ),
                    )),
                    clip_and_scroll: (
                        scroll_node_id: Clip(5, (1, 3)),
                        clip_node_id: Some(ClipChain((5, (1, 3)))),
                    ),
                    info: (
                        rect: ((-15, -15), (270, 270)),
                        clip_rect: ((-15, -15), (270, 270)),
                        is_backface_visible: true,
                        tag: None,
                    ),
                ),// [43]

Comment 5

[Emilio Cobos Álvarez (:emilio)]

I c volunteer to take a look at this today, tomorrow or early next week, given I'm likely to spend a fair amount of time waiting for windows builds for the other widget-y stuff :)

Comment 6

[Emilio Cobos Álvarez (:emilio)]

Attachment: Testcase that repros.

Comment 7

[Matt Woodrow (:mattwoodrow)]

Attachment: Bug 1492250 - Create a WebRender stacking context for nsDisplayStickyPosition to ensure that all descendants get the same positioning. r?mstange

MozReview-Commit-ID: 5JZo0z3LC7t

Comment 8

[Markus Stange [:mstange]]

Comment on attachment 9010516 [details]
Bug 1492250 - Create a WebRender stacking context for nsDisplayStickyPosition to ensure that all descendants get the same positioning. r?mstange

Markus Stange [:mstange] has approved the revision.

Comment 9

[Markus Stange [:mstange]]

(In reply to Glenn Watson [:gw] from comment #1)
> But perhaps 1 / 20 or so scrolls, it appears to stay in the wrong position,
> even when I mouse over the URL bar to force a new display list.

Oh, this was probably because mousing over the URL bar only builds a new display list for the parent, not for the content.

(In reply to Glenn Watson [:gw] from comment #3)
> Interesting - I can do a WR scene capture of the bug in Gecko, and it
> replays correctly when I load it in wrench.

Do we know why this is the case?

Comment 10

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/a0179bdde496
Create a WebRender stacking context for nsDisplayStickyPosition to ensure that all descendants get the same positioning. r=mstange

Comment 11

[Glenn Watson [:gw]]

(In reply to Markus Stange [:mstange] from comment #9)
> (In reply to Glenn Watson [:gw] from comment #1)
> > But perhaps 1 / 20 or so scrolls, it appears to stay in the wrong position,
> > even when I mouse over the URL bar to force a new display list.
> 
> Oh, this was probably because mousing over the URL bar only builds a new
> display list for the parent, not for the content.

Ah, that makes sense.

> 
> (In reply to Glenn Watson [:gw] from comment #3)
> > Interesting - I can do a WR scene capture of the bug in Gecko, and it
> > replays correctly when I load it in wrench.
> 
> Do we know why this is the case?

No, I'm not sure why - it seems like somehow we're not quite serializing the true current state in this test case.

Comment 12

[Cristina Coroiu [:ccoroiu]]

Backed out changeset a0179bdde496 (bug 1492250) for reftest failures at tests/layout/reftests/async-scrolling/sticky-pos-scrollable-7.html

Backout: https://hg.mozilla.org/integration/autoland/rev/10664ff20476570e918bb9b016fed15e39db6855

Failure push: https://treeherder.mozilla.org/logviewer.html#?job_id=200400912&repo=autoland&lineNumber=2115

Failure log: https://treeherder.mozilla.org/logviewer.html#?job_id=200400912&repo=autoland&lineNumber=2115

task 2018-09-20T10:13:29.656Z] 10:13:29     INFO -  REFTEST TEST-START | http://10.0.2.2:8854/tests/layout/reftests/async-scrolling/sticky-pos-scrollable-7.html == http://10.0.2.2:8854/tests/layout/reftests/async-scrolling/sticky-pos-scrollable-7-ref.html
[task 2018-09-20T10:13:29.657Z] 10:13:29     INFO -  REFTEST TEST-LOAD | http://10.0.2.2:8854/tests/layout/reftests/async-scrolling/sticky-pos-scrollable-7.html | 160 / 290 (55%)
[task 2018-09-20T10:13:50.694Z] 10:13:50     INFO -  wait for org.mozilla.fennec_aurora complete; top activity=com.android.launcher
[task 2018-09-20T10:13:50.898Z] 10:13:50     INFO -  INFO | automation.py | Application ran for: 0:23:37.272870
[task 2018-09-20T10:13:50.899Z] 10:13:50     INFO -  INFO | zombiecheck | Reading PID log: /tmp/tmpFHfuhgpidlog
[task 2018-09-20T10:13:51.413Z] 10:13:51     INFO -  /data/tombstones does not exist; tombstone check skipped
[task 2018-09-20T10:13:52.232Z] 10:13:52     INFO -  REFTEST INFO | Copy/paste: /usr/local/bin/linux64-minidump_stackwalk /tmp/tmphdQon6/45bb7ef5-be8f-1e04-f8c9-1d2fb995097c.dmp /builds/worker/workspace/build/symbols
[task 2018-09-20T10:14:05.883Z] 10:14:05     INFO -  REFTEST INFO | Saved minidump as /builds/worker/workspace/build/blobber_upload_dir/45bb7ef5-be8f-1e04-f8c9-1d2fb995097c.dmp
[task 2018-09-20T10:14:05.884Z] 10:14:05     INFO -  REFTEST INFO | Saved app info as /builds/worker/workspace/build/blobber_upload_dir/45bb7ef5-be8f-1e04-f8c9-1d2fb995097c.extra
[task 2018-09-20T10:14:05.890Z] 10:14:05     INFO -  REFTEST PROCESS-CRASH | http://10.0.2.2:8854/tests/layout/reftests/async-scrolling/sticky-pos-scrollable-7.html == http://10.0.2.2:8854/tests/layout/reftests/async-scrolling/sticky-pos-scrollable-7-ref.html | application crashed [@ mozilla::layers::AsyncCompositionManager::AlignFixedAndStickyLayers(mozilla::layers::Layer*, mozilla::layers::Layer*, unsigned long long, mozilla::gfx::Matrix4x4Typed<mozilla::LayerPixel, mozilla::ParentLayerPixel> const&, mozilla::gfx::Matrix4x4Typed<mozilla::LayerPixel, mozilla::ParentLayerPixel> const&, mozilla::gfx::MarginTyped<mozilla::ScreenPixel, float> const&, std::__ndk1::map<mozilla::layers::Layer*, mozilla::layers::AsyncCompositionManager::ClipParts, std::__ndk1::less<mozilla::layers::Layer*>, std::__ndk1::allocator<std::__ndk1::pair<mozilla::layers::Layer* const, mozilla::layers::AsyncCompositionManager::ClipParts> > >*)]
[task 2018-09-20T10:14:05.891Z] 10:14:05     INFO -  Crash dump filename: /tmp/tmphdQon6/45bb7ef5-be8f-1e04-f8c9-1d2fb995097c.dmp
[task 2018-09-20T10:14:05.891Z] 10:14:05     INFO -  Operating system: Android
[task 2018-09-20T10:14:05.891Z] 10:14:05     INFO -                    0.0.0 Linux 2.6.29-gea477bb #1 Wed Sep 26 11:04:45 PDT 2012 armv7l
[task 2018-09-20T10:14:05.892Z] 10:14:05     INFO -  CPU: arm
[task 2018-09-20T10:14:05.892Z] 10:14:05     INFO -       ARMv7 ARM Cortex-A8 features: swp,half,thumb,fastmult,vfpv2,edsp,neon,vfpv3
[task 2018-09-20T10:14:05.893Z] 10:14:05     INFO -       1 CPU
[task 2018-09-20T10:14:05.893Z] 10:14:05     INFO -  GPU: UNKNOWN
[task 2018-09-20T10:14:05.893Z] 10:14:05     INFO -  Crash reason:  SIGSEGV
[task 2018-09-20T10:14:05.893Z] 10:14:05     INFO -  Crash address: 0x0
[task 2018-09-20T10:14:05.893Z] 10:14:05     INFO -  Process uptime: not available
[task 2018-09-20T10:14:05.894Z] 10:14:05     INFO -  Thread 41 (crashed)
[task 2018-09-20T10:14:05.895Z] 10:14:05     INFO -   0  libxul.so!mozilla::layers::AsyncCompositionManager::AlignFixedAndStickyLayers(mozilla::layers::Layer*, mozilla::layers::Layer*, unsigned long long, mozilla::gfx::Matrix4x4Typed<mozilla::LayerPixel, mozilla::ParentLayerPixel> const&, mozilla::gfx::Matrix4x4Typed<mozilla::LayerPixel, mozilla::ParentLayerPixel> const&, mozilla::gfx::MarginTyped<mozilla::ScreenPixel, float> const&, std::__ndk1::map<mozilla::layers::Layer*, mozilla::layers::AsyncCompositionManager::ClipParts, std::__ndk1::less<mozilla::layers::Layer*>, std::__ndk1::allocator<std::__ndk1::pair<mozilla::layers::Layer* const, mozilla::layers::AsyncCompositionManager::ClipParts> > >*) [AsyncCompositionManager.cpp:a0179bdde4960184f66612eee83a2fd96238fc1d : 0 + 0x6]
[task 2018-09-20T10:14:05.895Z] 10:14:05     INFO -       r0 = 0x00000000    r1 = 0xc54046c4    r2 = 0x60346f24    r3 = 0x000001e2
[task 2018-09-20T10:14:05.895Z] 10:14:05     INFO -       r4 = 0x000001e2    r5 = 0x54dff0f0    r6 = 0x54dff0a8    r7 = 0x54dff180
[task 2018-09-20T10:14:05.896Z] 10:14:05     INFO -       r8 = 0x54dff758    r9 = 0x00000000   r10 = 0x00000190   r12 = 0x00000003
[task 2018-09-20T10:14:05.896Z] 10:14:05     INFO -       fp = 0x560a4600    sp = 0x54dff010    lr = 0x5d4c6b71    pc = 0x5d4ce65a
[task 2018-09-20T10:14:05.897Z] 10:14:05     INFO -      Found by: given as instruction pointer in context
[task 2018-09-20T10:14:05.897Z] 10:14:05     INFO -   1  libxul.so!mozilla::layers::AsyncCompositionManager::AlignFixedAndStickyLayers(mozilla::layers::Layer*, mozilla::layers::Layer*, unsigned long long, mozilla::gfx::Matrix4x4Typed<mozilla::LayerPixel, mozilla::ParentLayerPixel> const&, mozilla::gfx::Matrix4x4Typed<mozilla::LayerPixel, mozilla::ParentLayerPixel> const&, mozilla::gfx::MarginTyped<mozilla::ScreenPixel, float> const&, std::__ndk1::map<mozilla::layers::Layer*, mozilla::layers::AsyncCompositionManager::ClipParts, std::__ndk1::less<mozilla::layers::Layer*>, std::__ndk1::allocator<std::__ndk1::pair<mozilla::layers::Layer* const, mozilla::layers::AsyncCompositionManager::ClipParts> > >*) [AsyncCompositionManager.cpp:a0179bdde4960184f66612eee83a2fd96238fc1d : 462 + 0x19]
[task 2018-09-20T10:14:05.898Z] 10:14:05     INFO -       r4 = 0x54aa3800    r5 = 0x54dffadc    r6 = 0x5a0c6000    r7 = 0x54dff2f8
[task 2018-09-20T10:14:05.898Z] 10:14:05     INFO -       r8 = 0x54dff758    r9 = 0x00000000   r10 = 0x00000190    fp = 0x560a4600
[task 2018-09-20T10:14:05.898Z] 10:14:05     INFO -       sp = 0x54dff188    lr = 0x5d4ce2bb    pc = 0x5d4ce2bb
[task 2018-09-20T10:14:05.899Z] 10:14:05     INFO -      Found by: call frame info
[task 2018-09-20T10:14:05.900Z] 10:14:05     INFO -   2  libxul.so!mozilla::layers::AsyncCompositionManager::AlignFixedAndStickyLayers(mozilla::layers::Layer*, mozilla::layers::Layer*, unsigned long long, mozilla::gfx::Matrix4x4Typed<mozilla::LayerPixel, mozilla::ParentLayerPixel> const&, mozilla::gfx::Matrix4x4Typed<mozilla::LayerPixel, mozilla::ParentLayerPixel> const&, mozilla::gfx::MarginTyped<mozilla::ScreenPixel, float> const&, std::__ndk1::map<mozilla::layers::Layer*, mozilla::layers::AsyncCompositionManager::ClipParts, std::__ndk1::less<mozilla::layers::Layer*>, std::__ndk1::allocator<std::__ndk1::pair<mozilla::layers::Layer* const, mozilla::layers::AsyncCompositionManager::ClipParts> > >*) [AsyncCompositionManager.cpp:a0179bdde4960184f66612eee83a2fd96238fc1d : 462 + 0x19]
[task 2018-09-20T10:14:05.900Z] 10:14:05     INFO -       r4 = 0x54aa3800    r5 = 0x54dffadc    r6 = 0x58feac00    r7 = 0x54dff470
[task 2018-09-20T10:14:05.900Z] 10:14:05     INFO -       r8 = 0x54dff758    r9 = 0x00000000   r10 = 0x00000190    fp = 0x560a4600
[task 2018-09-20T10:14:05.901Z] 10:14:05     INFO -       sp = 0x54dff300    lr = 0x5d4ce2bb    pc = 0x5d4ce2bb
[task 2018-09-20T10:14:05.901Z] 10:14:05     INFO -      Found by: call frame info
[task 2018-09-20T10:14:05.902Z] 10:14:05     INFO -   3  libxul.so!mozilla::layers::AsyncCompositionManager::ApplyAsyncContentTransformToTree(mozilla::layers::Layer*, bool*)::$_4::operator()(mozilla::layers::Layer*) const [AsyncCompositionManager.cpp:a0179bdde4960184f66612eee83a2fd96238fc1d : 1075 + 0x1b]
[task 2018-09-20T10:14:05.902Z] 10:14:05     INFO -       r4 = 0x54dff6d8    r5 = 0x54dffac4    r6 = 0x54dff758    r7 = 0x54dffa58
[task 2018-09-20T10:14:05.902Z] 10:14:05     INFO -       r8 = 0x54dff6d8    r9 = 0x54dff7e4   r10 = 0x54dff618    fp = 0x54dffac4
[task 2018-09-20T10:14:05.902Z] 10:14:05     INFO -       sp = 0x54dff478    lr = 0x5d4d7f33    pc = 0x5d4d7f33
[task 2018-09-20T10:14:05.903Z] 10:14:05     INFO -      Found by: call frame info
[task 2018-09-20T10:14:05.903Z] 10:14:05     INFO -   4  libxul.so!mozilla::layers::ForEachNode<mozilla::layers::ForwardIterator, mozilla::layers::Layer *, (lambda at /builds/worker/workspace/build/src/gfx/layers/composite/AsyncCompositionManager.cpp:906:7), (lambda at /builds/worker/workspace/build/src/gfx/layers/composite/AsyncCompositionManager.cpp:910:7)> [TreeTraversal.h:a0179bdde4960184f66612eee83a2fd96238fc1d : 145 + 0x7]
[task 2018-09-20T10:14:05.904Z] 10:14:05     INFO -       r4 = 0x54dffac4    r5 = 0x00000000    r6 = 0x54dffad8    r7 = 0x54dffa88
[task 2018-09-20T10:14:05.904Z] 10:14:05     INFO -       r8 = 0x54aa3800    r9 = 0x55fcec00   r10 = 0x560a4600    fp = 0x00000000
[task 2018-09-20T10:14:05.904Z] 10:14:05     INFO -       sp = 0x54dffa60    lr = 0x5d4cea3f    pc = 0x5d4cea3f
[task 2018-09-20T10:14:05.905Z] 10:14:05     INFO -      Found by: call frame info
[task 2018-09-20T10:14:05.905Z] 10:14:05     INFO -   5  libxul.so!mozilla::layers::ForEachNode<mozilla::layers::ForwardIterator, mozilla::layers::Layer *, (lambda at /builds/worker/workspace/build/src/gfx/layers/composite/AsyncCompositionManager.cpp:906:7), (lambda at /builds/worker/workspace/build/src/gfx/layers/composite/AsyncCompositionManager.cpp:910:7)> [TreeTraversal.h:a0179bdde4960184f66612eee83a2fd96238fc1d : 142 + 0x9]
[task 2018-09-20T10:14:05.906Z] 10:14:05     INFO -       r4 = 0x54dffac4    r5 = 0x54aa3800    r6 = 0x54dffad8    r7 = 0x54dffab8
[task 2018-09-20T10:14:05.906Z] 10:14:05     INFO -       r8 = 0x55fcec00    r9 = 0x55fcec00   r10 = 0x560a4600    fp = 0x00000000
[task 2018-09-20T10:14:05.906Z] 10:14:05     INFO -       sp = 0x54dffa90    lr = 0x5d4cea2b    pc = 0x5d4cea2b
[task 2018-09-20T10:14:05.907Z] 10:14:05     INFO -      Found by: call frame info
[task 2018-09-20T10:14:05.907Z] 10:14:05     INFO -   6  libxul.so!mozilla::layers::AsyncCompositionManager::ApplyAsyncContentTransformToTree(mozilla::layers::Layer*, bool*) [AsyncCompositionManager.cpp:a0179bdde4960184f66612eee83a2fd96238fc1d : 904 + 0x7]
[task 2018-09-20T10:14:05.907Z] 10:14:05     INFO -       r4 = 0x54dffadc    r5 = 0x54dffae8    r6 = 0x00000000    r7 = 0x54dffb18
[task 2018-09-20T10:14:05.908Z] 10:14:05     INFO -       r8 = 0x560a4644    r9 = 0x55fcec00   r10 = 0x560a4600    fp = 0x00000000
[task 2018-09-20T10:14:05.908Z] 10:14:05     INFO -       sp = 0x54dffac0    lr = 0x5d4ce9cf    pc = 0x5d4ce9cf
[task 2018-09-20T10:14:05.908Z] 10:14:05     INFO -      Found by: call frame info
[task 2018-09-20T10:14:05.909Z] 10:14:05     INFO -   7  libxul.so!mozilla::layers::AsyncCompositionManager::TransformShadowTree(mozilla::TimeStamp, mozilla::BaseTimeDuration<mozilla::TimeDurationValueCalculator>, mozilla::layers::CompositorBridgeParentBase::TransformsToSkip) [AsyncCompositionManager.cpp:a0179bdde4960184f66612eee83a2fd96238fc1d : 1340 + 0x7]
[task 2018-09-20T10:14:05.909Z] 10:14:05     INFO -       r4 = 0x560a4670    r5 = 0x54dffb80    r6 = 0x00000000    r7 = 0x54dffc18
[task 2018-09-20T10:14:05.910Z] 10:14:05     INFO -       r8 = 0x560a4644    r9 = 0x55fcec00   r10 = 0x560a4600    fp = 0x00000000
[task 2018-09-20T10:14:05.910Z] 10:14:05     INFO -       sp = 0x54dffb20    lr = 0x5d4ced3f    pc = 0x5d4ced3f
[task 2018-09-20T10:14:05.910Z] 10:14:05     INFO -      Found by: call frame info
[task 2018-09-20T10:14:05.911Z] 10:14:05     INFO -   8  libxul.so!mozilla::layers::CompositorBridgeParent::CompositeToTarget(mozilla::gfx::DrawTarget*, mozilla::gfx::IntRectTyped<mozilla::gfx::UnknownUnits> const*) [CompositorBridgeParent.cpp:a0179bdde4960184f66612eee83a2fd96238fc1d : 1060 + 0x7]
[task 2018-09-20T10:14:05.911Z] 10:14:05     INFO -       r4 = 0x560a8090    r5 = 0x00000000    r6 = 0x00000000    r7 = 0x54dffc88
[task 2018-09-20T10:14:05.912Z] 10:14:05     INFO -       r8 = 0x00000000    r9 = 0x00000000   r10 = 0x560a8180    fp = 0x000000aa
[task 2018-09-20T10:14:05.912Z] 10:14:05     INFO -       sp = 0x54dffc20    lr = 0x5d4ebc95    pc = 0x5d4ebc95
[task 2018-09-20T10:14:05.912Z] 10:14:05     INFO -      Found by: call frame info
[task 2018-09-20T10:14:05.913Z] 10:14:05     INFO -   9  libxul.so!mozilla::layers::CompositorVsyncScheduler::Composite(mozilla::TimeStamp) [CompositorVsyncScheduler.cpp:a0179bdde4960184f66612eee83a2fd96238fc1d : 245 + 0x9]
[task 2018-09-20T10:14:05.913Z] 10:14:05     INFO -       r4 = 0x560a44c0    r5 = 0x00000000    r6 = 0x54dffcc4    r7 = 0x54dffcb0
[task 2018-09-20T10:14:05.913Z] 10:14:05     INFO -       r8 = 0x54a01170    r9 = 0x54dffe1c   r10 = 0x54dffd18    fp = 0x000000aa
[task 2018-09-20T10:14:05.914Z] 10:14:05     INFO -       sp = 0x54dffc90    lr = 0x5d4f05e1    pc = 0x5d4f05e1
[task 2018-09-20T10:14:05.914Z] 10:14:05     INFO -      Found by: call frame info
[task 2018-09-20T10:14:05.914Z] 10:14:05     INFO -  10  libxul.so!mozilla::detail::RunnableMethodImpl<SoftwareDisplay*, void (SoftwareDisplay::*)(mozilla::TimeStamp), true, (mozilla::RunnableKind)1, mozilla::TimeStamp>::Run() [nsThreadUtils.h:a0179bdde4960184f66612eee83a2fd96238fc1d : 1184 + 0x3]
[task 2018-09-20T10:14:05.915Z] 10:14:05     INFO -       r4 = 0x54dffe10    r5 = 0x54dffcf4    r6 = 0x54dffcc4    r7 = 0x54dffcb8
[task 2018-09-20T10:14:05.915Z] 10:14:05     INFO -       r8 = 0x54a01170    r9 = 0x54dffe1c   r10 = 0x54dffd18    fp = 0x000000aa
[task 2018-09-20T10:14:05.915Z] 10:14:05     INFO -       sp = 0x54dffcb8    lr = 0x5d4faa85    pc = 0x5d4faa85
[task 2018-09-20T10:14:05.916Z] 10:14:05     INFO -      Found by: call frame info
[task 2018-09-20T10:14:05.916Z] 10:14:05     INFO -  11  libxul.so!MessageLoop::RunTask(already_AddRefed<nsIRunnable>) [message_loop.cc:a0179bdde4960184f66612eee83a2fd96238fc1d : 451 + 0x5]
[task 2018-09-20T10:14:05.917Z] 10:14:05     INFO -       r4 = 0x54dffe10    r5 = 0x54dffcf4    r6 = 0x54dffcc4    r7 = 0x54dffce8
[task 2018-09-20T10:14:05.917Z] 10:14:05     INFO -       r8 = 0x54a01170    r9 = 0x54dffe1c   r10 = 0x54dffd18    fp = 0x000000aa
[task 2018-09-20T10:14:05.917Z] 10:14:05     INFO -       sp = 0x54dffcc0    lr = 0x5cffb7c5    pc = 0x5cffb7c5
[task 2018-09-20T10:14:05.918Z] 10:14:05     INFO -      Found by: call frame info
[task 2018-09-20T10:14:05.918Z] 10:14:05     INFO -  12  libxul.so!MessageLoop::DeferOrRunPendingTask(MessageLoop::PendingTask&&) [message_loop.cc:a0179bdde4960184f66612eee83a2fd96238fc1d : 459 + 0x7]
[task 2018-09-20T10:14:05.918Z] 10:14:05     INFO -       r4 = 0x54dffe10    r5 = 0x54dffcf4    r6 = 0x54dffd10    r7 = 0x54dffd00
[task 2018-09-20T10:14:05.919Z] 10:14:05     INFO -       r8 = 0x54a01170    r9 = 0x54dffe1c   r10 = 0x54dffd18    fp = 0x000000aa
[task 2018-09-20T10:14:05.919Z] 10:14:05     INFO -       sp = 0x54dffcf0    lr = 0x5cffbabd    pc = 0x5cffbabd
[task 2018-09-20T10:14:05.919Z] 10:14:05     INFO -      Found by: call frame info
[task 2018-09-20T10:14:05.920Z] 10:14:05     INFO -  13  libxul.so!MessageLoop::DoWork() [message_loop.cc:a0179bdde4960184f66612eee83a2fd96238fc1d : 534 + 0x7]
[task 2018-09-20T10:14:05.920Z] 10:14:05     INFO -       r2 = 0x00000000    r3 = 0x00000000    r4 = 0x54dffe10    r5 = 0x000000ba
[task 2018-09-20T10:14:05.921Z] 10:14:05     INFO -       r6 = 0x54dffd10    r7 = 0x54dffd48    r8 = 0x54a01170    r9 = 0x54dffe1c
[task 2018-09-20T10:14:05.921Z] 10:14:05     INFO -      r10 = 0x54dffd18    fp = 0x000000aa    sp = 0x54dffd08    lr = 0x5cffbbc9
[task 2018-09-20T10:14:05.921Z] 10:14:05     INFO -       pc = 0x5cffbbc9
[task 2018-09-20T10:14:05.921Z] 10:14:05     INFO -      Found by: call frame info
[task 2018-09-20T10:14:05.922Z] 10:14:05     INFO -  14  libxul.so!base::MessagePumpDefault::Run(base::MessagePump::Delegate*) [message_pump_default.cc:a0179bdde4960184f66612eee83a2fd96238fc1d : 38 + 0x7]
[task 2018-09-20T10:14:05.922Z] 10:14:05     INFO -       r4 = 0x53d5d060    r5 = 0x54dffe10    r6 = 0x53d5d070    r7 = 0x54dffdb8
[task 2018-09-20T10:14:05.923Z] 10:14:05     INFO -       r8 = 0x54dffd68    r9 = 0x54dffd80   r10 = 0x54dffd64    fp = 0x54dffd78
[task 2018-09-20T10:14:05.923Z] 10:14:05     INFO -       sp = 0x54dffd50    lr = 0x5cffc329    pc = 0x5cffc329
[task 2018-09-20T10:14:05.923Z] 10:14:05     INFO -      Found by: call frame info
[task 2018-09-20T10:14:05.924Z] 10:14:05     INFO -  15  libxul.so!MessageLoop::RunInternal() [message_loop.cc:a0179bdde4960184f66612eee83a2fd96238fc1d : 325 + 0x7]
[task 2018-09-20T10:14:05.924Z] 10:14:05     INFO -       r4 = 0x54dffe10    r5 = 0x53d5ae94    r6 = 0x00000000    r7 = 0x54dffdd8
[task 2018-09-20T10:14:05.924Z] 10:14:05     INFO -       r8 = 0x54dffe10    r9 = 0x54dc0000   r10 = 0x54dfff00    fp = 0x2a3cc5e0
[task 2018-09-20T10:14:05.925Z] 10:14:05     INFO -       sp = 0x54dffdc0    lr = 0x5cffb6bd    pc = 0x5cffb6bd
[task 2018-09-20T10:14:05.925Z] 10:14:05     INFO -      Found by: call frame info
[task 2018-09-20T10:14:05.925Z] 10:14:05     INFO -  16  libxul.so!MessageLoop::Run() [message_loop.cc:a0179bdde4960184f66612eee83a2fd96238fc1d : 318 + 0x5]
[task 2018-09-20T10:14:05.926Z] 10:14:05     INFO -       r0 = 0x54dffe10    r1 = 0x00000000    r2 = 0x00000001    r3 = 0x00000000
[task 2018-09-20T10:14:05.926Z] 10:14:05     INFO -       r4 = 0x54dffe10    r5 = 0x53d5ae94    r6 = 0x00000000    r7 = 0x54dffdf8
[task 2018-09-20T10:14:05.926Z] 10:14:05     INFO -       r8 = 0x54dffe10    r9 = 0x54dc0000   r10 = 0x54dfff00    fp = 0x2a3cc5e0
[task 2018-09-20T10:14:05.927Z] 10:14:05     INFO -       sp = 0x54dffde0    lr = 0x5cffb669    pc = 0x5cffb669
[task 2018-09-20T10:14:05.927Z] 10:14:05     INFO -      Found by: call frame info
[task 2018-09-20T10:14:05.927Z] 10:14:05     INFO -  17  libxul.so!base::Thread::ThreadMain() [thread.cc:a0179bdde4960184f66612eee83a2fd96238fc1d : 181 + 0x5]
[task 2018-09-20T10:14:05.928Z] 10:14:05     INFO -       r0 = 0x00000001    r1 = 0x00000000    r2 = 0x54dffe10    r3 = 0x00000000
[task 2018-09-20T10:14:05.928Z] 10:14:05     INFO -       r4 = 0x53d5ae80    r5 = 0x53d5ae94    r6 = 0x00000000    r7 = 0x54dffed0
[task 2018-09-20T10:14:05.928Z] 10:14:05     INFO -       r8 = 0x54dffe10    r9 = 0x54dc0000   r10 = 0x54dfff00    fp = 0x2a3cc5e0
[task 2018-09-20T10:14:05.929Z] 10:14:05     INFO -       sp = 0x54dffe00    lr = 0x5d0061f3    pc = 0x5d0061f3
[task 2018-09-20T10:14:05.929Z] 10:14:05     INFO -      Found by: call frame info
[task 2018-09-20T10:14:05.929Z] 10:14:05     INFO -  18  libxul.so!ThreadFunc(void*) [platform_thread_posix.cc:a0179bdde4960184f66612eee83a2fd96238fc1d : 44 + 0x7]
[task 2018-09-20T10:14:05.930Z] 10:14:05     INFO -       r4 = 0x53d5ae80    r5 = 0x2a3cc5e0    r6 = 0x5cfff0e9    r7 = 0x54dffee0
[task 2018-09-20T10:14:05.930Z] 10:14:05     INFO -       r8 = 0x53d5ae88    r9 = 0x54dc0000   r10 = 0x54dfff00    fp = 0x2a3cc5e0
[task 2018-09-20T10:14:05.931Z] 10:14:05     INFO -       sp = 0x54dffed8    lr = 0x5cfff0fb    pc = 0x5cfff0fb
[task 2018-09-20T10:14:05.931Z] 10:14:05     INFO -      Found by: call frame info
[task 2018-09-20T10:14:05.931Z] 10:14:05     INFO -  19  libc.so + 0xca5a
[task 2018-09-20T10:14:05.932Z] 10:14:05     INFO -       r4 = 0x54dfff00    r5 = 0x2a3cc5e0    r6 = 0x5cfff0e9    r7 = 0x53d5ae80
[task 2018-09-20T10:14:05.932Z] 10:14:05     INFO -       r8 = 0x53d5ae88    r9 = 0x54dc0000   r10 = 0x54dfff00    fp = 0x2a3cc5e0
[task 2018-09-20T10:14:05.932Z] 10:14:05     INFO -       sp = 0x54dffee8    lr = 0x40033a5c    pc = 0x40033a5c
[task 2018-09-20T10:14:05.933Z] 10:14:05     INFO -      Found by: call frame info
[task 2018-09-20T10:14:05.933Z] 10:14:05     INFO -  20  libc.so + 0xcbd6
[task 2018-09-20T10:14:05.933Z] 10:14:05     INFO -       sp = 0x54dfff00    pc = 0x40033bd8

Comment 13

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/471ccb1a377e
Create a WebRender stacking context for nsDisplayStickyPosition to ensure that all descendants get the same positioning. r=mstange

Comment 14

[Pulsebot]

Backout by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/2fd7267721dc
Backed out changeset 471ccb1a377e for failing at /reftests/async-scrolling/reftest.list line 36 on a CLOSED TREE

Comment 15

[Raul Gurzau (:RaulG)]

Backed out changeset 471ccb1a377e (bug 1492250) for failing at /reftests/async-scrolling/reftest.list line 36 on a CLOSED TREE

Backout link: https://hg.mozilla.org/integration/autoland/rev/2fd7267721dc031480b02341ef5458a9ecbf9bff

Push with failures: https://treeherder.mozilla.org/#/jobs?repo=autoland&resultStatus=testfailed,busted,exception&tier=1&revision=471ccb1a377ed4e079bbe7d49ef055e8e03c789c

Log link: https://treeherder.mozilla.org/logviewer.html#?job_id=200602499&repo=autoland&lineNumber=1295[task 2018-09-20T23:56:15.560Z] 23:56:15     INFO - Calling ['/builds/worker/workspace/build/venv/bin/python', '-u', '/builds/worker/workspace/build/tests/reftest/runreftest.py', '--total-chunks', '8', '--this-chunk', '1', '--appname=/builds/worker/workspace/build/application/firefox/firefox', '--utility-path=tests/bin', '--extra-profile-file=tests/bin/plugins', '--symbols-path=https://queue.taskcluster.net/v1/task/FI_nT3cNTByh8anT7e6k4w/artifacts/public/build/target.crashreporter-symbols.zip', '--log-raw=/builds/worker/workspace/build/blobber_upload_dir/reftest_raw.log', '--log-errorsummary=/builds/worker/workspace/build/blobber_upload_dir/reftest_errorsummary.log', '--cleanup-crashes', '--marionette-startup-timeout=180', '--sandbox-read-whitelist=/builds/worker/workspace/build', '--log-raw=-', '--suite=reftest', '--setpref=layers.acceleration.force-enabled=true', '--', 'tests/reftest/tests/layout/reftests/reftest.list'] with output_timeout 1000
[task 2018-09-20T23:56:15.843Z] 23:56:15     INFO - REFTEST INFO | Running with e10s: True
[task 2018-09-20T23:56:15.844Z] 23:56:15     INFO - REFTEST INFO | Application command: /builds/worker/workspace/build/application/firefox/firefox -marionette -profile /tmp/tmpOT8i1I.mozrunner
[task 2018-09-20T23:56:16.599Z] 23:56:16     INFO - 1537487776597	Marionette	DEBUG	Received observer notification profile-after-change
[task 2018-09-20T23:56:16.702Z] 23:56:16     INFO - 1537487776700	Marionette	DEBUG	Received observer notification command-line-startup
[task 2018-09-20T23:56:16.703Z] 23:56:16     INFO - 1537487776700	Marionette	DEBUG	Received observer notification nsPref:changed
[task 2018-09-20T23:56:16.704Z] 23:56:16     INFO - 1537487776700	Marionette	DEBUG	Init aborted (running=false, enabled=true, finalUIStartup=false)
[task 2018-09-20T23:56:16.887Z] 23:56:16     INFO - 1537487776884	Marionette	DEBUG	Received observer notification toplevel-window-ready
[task 2018-09-20T23:56:18.529Z] 23:56:18     INFO - 1537487778517	Marionette	DEBUG	Received observer notification sessionstore-windows-restored
[task 2018-09-20T23:56:18.529Z] 23:56:18     INFO - 1537487778518	Marionette	DEBUG	Waiting for delayed startup...
[task 2018-09-20T23:56:19.079Z] 23:56:19     INFO - 1537487779074	Marionette	DEBUG	Waiting for startup tests...
[task 2018-09-20T23:56:19.164Z] 23:56:19     INFO - 1537487779159	Marionette	INFO	Listening on port 2828
[task 2018-09-20T23:56:19.164Z] 23:56:19     INFO - 1537487779159	Marionette	DEBUG	Remote service is active
[task 2018-09-20T23:56:19.185Z] 23:56:19     INFO - 1537487779179	Marionette	DEBUG	Accepted connection 0 from 127.0.0.1:53496
[task 2018-09-20T23:56:19.203Z] 23:56:19     INFO - 1537487779192	Marionette	DEBUG	Accepted connection 1 from 127.0.0.1:53498
[task 2018-09-20T23:56:19.203Z] 23:56:19     INFO - 1537487779193	Marionette	DEBUG	Closed connection 0
[task 2018-09-20T23:56:19.203Z] 23:56:19     INFO - 1537487779197	Marionette	TRACE	1 -> [0,1,"WebDriver:NewSession",{}]
[task 2018-09-20T23:56:19.362Z] 23:56:19     INFO - 1537487779353	Marionette	DEBUG	[4294967297] Frame script loaded
[task 2018-09-20T23:56:19.362Z] 23:56:19     INFO - 1537487779356	Marionette	DEBUG	[4294967297] Frame script registered
[task 2018-09-20T23:56:19.398Z] 23:56:19     INFO - 1537487779388	Marionette	TRACE	1 <- [1,1,null,{"sessionId":"ce5b827d-93cc-4c5d-a29b-38fd8b34aa6a","capabilities":{"browserName":"firefox","browserVersion":"64.0a ... essID":978,"moz:profile":"/tmp/tmpOT8i1I.mozrunner","moz:useNonSpecCompliantPointerOrigin":false,"moz:webdriverClick":true}}]
[task 2018-09-20T23:56:19.399Z] 23:56:19     INFO - 1537487779395	Marionette	TRACE	1 -> [0,2,"Addon:Install",{"path":"/builds/worker/workspace/build/tests/reftest/reftest","temporary":true}]
[task 2018-09-20T23:56:19.480Z] 23:56:19     INFO - 1537487779472	Marionette	TRACE	1 <- [1,2,null,{"value":"[e-mail]"}]
[task 2018-09-20T23:56:19.772Z] 23:56:19     INFO - 1537487779767	Marionette	TRACE	1 -> [0,3,"WebDriver:DeleteSession",{}]
[task 2018-09-20T23:56:19.775Z] 23:56:19     INFO - 1537487779769	Marionette	TRACE	1 <- [1,3,null,{"value":null}]
[task 2018-09-20T23:56:19.790Z] 23:56:19     INFO - 1537487779779	Marionette	DEBUG	Closed connection 1
[task 2018-09-20T23:56:20.079Z] 23:56:20     INFO - REFTEST INFO | Reading manifest file:///builds/worker/workspace/build/tests/reftest/tests/layout/reftests/reftest.list
[task 2018-09-20T23:56:20.081Z] 23:56:20     INFO - REFTEST INFO | Dumping JSON representation of sandbox
[task 2018-09-20T23:56:20.090Z] 23:56:20     INFO - REFTEST INFO | {"isDebugBuild":false,"xulRuntime":{"widgetToolkit":"gtk3","OS":"Linux","XPCOMABI":"x86-gcc3"},"smallScreen":false,"d2d":false,"dwrite":false,"gpuProcess":false,"azureCairo":false,"azureSkia":true,"skiaContent":true,"azureSkiaGL":0,"contentSameGfxBackendAsCanvas":true,"layersGPUAccelerated":true,"d3d11":false,"d3d9":false,"layersOpenGL":true,"webrender":false,"layersOMTC":true,"advancedLayers":false,"layerChecksEnabled":true,"retainedDisplayList":true,"Android":false,"cocoaWidget":false,"gtkWidget":true,"qtWidget":false,"winWidget":false,"transparentScrollbars":true,"AddressSanitizer":false,"webrtc":true,"retainedDisplayLists":true,"compareRetainedDisplayLists":false,"skiaPdf":false,"release_or_beta":false,"http":{"userAgent":"Mozilla/5.0 (X11; Linux i686 on x86_64; rv:64.0) Gecko/20100101 Firefox/64.0","appName":"Mozilla","appVersion":"5.0","platform":"X11","oscpu":"Linux i686 on x86_64","misc":"rv:64.0"},"haveTestPlugin":true,"windowsDefaultTheme":false,"nativeThemePref":true,"gpuProcessForceEnabled":false,"prefs":{},"browserIsRemote":true,"asyncPan":true,"usesRepeatResampling":false,"verify":false}
[task 2018-09-20T23:56:21.144Z] 23:56:21    ERROR - REFTEST ERROR | EXCEPTION: Error in manifest file file:///builds/worker/workspace/build/tests/reftest/tests/layout/reftests/async-scrolling/reftest.list line 36: incorrect number of arguments to ==
[task 2018-09-21T00:02:46.732Z] 00:02:46     INFO - GLib-GIO-Message: Using the 'memory' GSettings backend.  Your settings will not be saved or shared with other applications.
[task 2018-09-21T00:19:26.758Z] 00:19:26     INFO - Automation Error: mozprocess timed out after 1000 seconds running ['/builds/worker/workspace/build/venv/bin/python', '-u', '/builds/worker/workspace/build/tests/reftest/runreftest.py', '--total-chunks', '8', '--this-chunk', '1', '--appname=/builds/worker/workspace/build/application/firefox/firefox', '--utility-path=tests/bin', '--extra-profile-file=tests/bin/plugins', '--symbols-path=https://queue.taskcluster.net/v1/task/FI_nT3cNTByh8anT7e6k4w/artifacts/public/build/target.crashreporter-symbols.zip', '--log-raw=/builds/worker/workspace/build/blobber_upload_dir/reftest_raw.log', '--log-errorsummary=/builds/worker/workspace/build/blobber_upload_dir/reftest_errorsummary.log', '--cleanup-crashes', '--marionette-startup-timeout=180', '--sandbox-read-whitelist=/builds/worker/workspace/build', '--log-raw=-', '--suite=reftest', '--setpref=layers.acceleration.force-enabled=true', '--', 'tests/reftest/tests/layout/reftests/reftest.list']
[task 2018-09-21T00:19:26.788Z] 00:19:26    ERROR - timed out after 1000 seconds of no output
[task 2018-09-21T00:19:26.789Z] 00:19:26    ERROR - Return code: -15
[task 2018-09-21T00:19:26.791Z] 00:19:26    ERROR - No checks run.
[task 2018-09-21T00:19:26.792Z] 00:19:26    ERROR - No suite end message was emitted by this harness.
[task 2018-09-21T00:19:26.793Z] 00:19:26     INFO - TinderboxPrint: reftest-reftest<br/><em class="testfail">T-FAIL</em>
[task 2018-09-21T00:19:26.794Z] 00:19:26    ERROR - # TBPL FAILURE #
[task 2018-09-21T00:19:26.794Z] 00:19:26  WARNING - setting return code to 2
[task 2018-09-21T00:19:26.795Z] 00:19:26    ERROR - The reftest suite: reftest ran with return status: FAILURE

Log snippet:

Comment 16

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/d5b484dc6344
Create a WebRender stacking context for nsDisplayStickyPosition to ensure that all descendants get the same positioning. r=mstange

Comment 17

[Eliza Balazs [:ebalazs_]]

https://hg.mozilla.org/mozilla-central/rev/d5b484dc6344

Comment 18

[Darkspirit]

Verified fixed in Nightly 64 x64 20180921100113 de_DE @ Debian Testing (KDE, Xorg, GTX 1060). Thanks!