1617424 - Crash in [@ mozilla::layers::WebRenderBridgeParent::AddPendingScrollPayload]

Status: RESOLVED FIXED

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

Description

[Darkspirit]

KDE, Xwayland, Debian Testing, Macbook Pro
I scrolled down by touchpad and suddenly tab content became grey.
This looks like a regression from yesterday.

This bug is for crash report bp-370eee68-a6b9-4efe-bdcf-b00000200223.

Top 10 frames of crashing thread:

0 libxul.so mozilla::layers::WebRenderBridgeParent::AddPendingScrollPayload gfx/layers/wr/WebRenderBridgeParent.cpp:1055
1 libxul.so mozilla::layers::APZCTreeManager::SampleForWebRender gfx/layers/apz/src/APZCTreeManager.cpp:722
2 libxul.so mozilla::layers::APZSampler::SampleForWebRender gfx/layers/apz/src/APZSampler.cpp:99
3 libxul.so mozilla::layers::APZSampler::SampleForWebRender gfx/layers/apz/src/APZSampler.cpp:74
4 libxul.so apz_sample_transforms gfx/layers/apz/src/APZSampler.cpp:276
5 libxul.so <webrender_bindings::bindings::SamplerCallback as webrender::renderer::AsyncPropertySampler>::sample gfx/webrender_bindings/src/bindings.rs:975
6 libxul.so webrender::render_backend::RenderBackend::update_document gfx/wr/webrender/src/render_backend.rs:1501
7 libxul.so webrender::render_backend::RenderBackend::run gfx/wr/webrender/src/render_backend.rs:956
8 libxul.so std::sys_common::backtrace::__rust_begin_short_backtrace src/libstd/sys_common/backtrace.rs:136
9 libxul.so _fini 

Comment 1

[Pascal Chevrel:pascalc (PTO until April 26)]

Thanks for filing Jan Andre. Marking as blocker for 75 as this is a new top crash.
Sean, do you think you can come up with a quick fix today or should we backout bug 1600793? Thanks

Comment 3

[Julien Cristau [:jcristau]]

Bug 1600793 was backed out:
https://hg.mozilla.org/mozilla-central/rev/8c5f9b08938ed193c756b6bc9884a353b796a55f

Comment 5

[Emil Ghitta, QA [:emilghitta]]

Hi Jan,

I tried to reproduce this issue on an affected build but only managed to encountered a different crash bp-70734a2c-5e65-48c2-85b2-f54470200325.

Can you please confirm if this issue is no longer reproducible for you ?

Thank you!

Comment 6

[Darkspirit]

(In reply to Emil Ghitta, QA [:emilghitta] from comment #5)

I tried to reproduce this issue on an affected build but only managed to encountered a different crash bp-70734a2c-5e65-48c2-85b2-f54470200325.

That's bug 1617432. But crashes of that signature seem to still occur in very-low amount.

Can you please confirm if this issue is no longer reproducible for you ?

"Has STR: --- → No", but according to above crash data section, no further crash happened.

Comment 7

[Firefox Bug Husbandry Bot]

Please specify a root cause for this bug. See :tmaity for more information.