1956468 - [WebGPU] [@ <name omitted> | vk_queue_submit_create ]

Status: NEW

(Core :: Graphics: WebGPU, defect)

Description

[Oleg]

Attachment: Fedora42.txt

User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:138.0) Gecko/20100101 Firefox/138.0

Steps to reproduce:

https://martinlaxenaire.github.io/gpu-curtains/examples/compute-blur/

Actual results:

Firefox crash.

Expected results:

Should not crashing.

Comment 1

[Oleg]

I'm crashing on this URL.

bp-62dec3d9-bf8f-45df-99ca-fe76d0250326
bp-8dc3c6fb-c0fb-47c9-801a-834db0250326
bp-446e195a-bbd3-4a41-9de2-e1c460250326
bp-39fb8701-ee71-4205-b5f7-9eac20250326
bp-19edb32b-3dce-4dd3-a71d-39a6d0250326
bp-0bda3d3d-57ee-4702-96d9-22dda0250326
bp-d27f89da-e6c2-4ad0-813b-cd7410250326
bp-3d9eb802-ff27-43d3-9950-cc2d20250326
bp-832ddab3-438d-49a8-ad32-84c080250326
bp-bc565579-1800-4a92-b24c-df9bd0250326
bp-3382d4f4-95c5-4bb1-855b-470610250326
bp-7f53455b-0ae8-4d88-979a-ea5750250326
bp-28eb8dd8-812d-47ab-a018-91a0a0250326
bp-f82ca4b7-bd40-41fa-843d-568670250326

Comment 2

[BugBot [:suhaib / :marco/ :calixte]]

The Bugbug bot thinks this bug should belong to the 'Core::Graphics: WebGPU' component, and is moving the bug to that component. Please correct in case you think the bot is wrong.

Comment 3

[Dianna Smith [:diannaS]]

crashes seem to have started in build 20250321040811. :jnicol can you see if this was caused by bug 1955214?

Comment 4

[Jamie Nicol [:jnicol]]

Seems unlikely. That doesn't change any interaction with the adapter, it just edits a CPU side buffer after we do a readback

Comment 5

[Jamie Nicol [:jnicol]]

On a local build my terminal gets spammed with this message:

Crash Annotation GraphicsCriticalError: |[0][GFX1-]: create_semaphore() failed: ERROR_INVALID_EXTERNAL_HANDLE (t=6.51071) [GFX1-]: create_semaphore() failed: ERROR_INVALID_EXTERNAL_HANDLE

which could potentially be related given the crash stack. I don't get a crash, but it definitely looks as if there's no synchronisation (it's jumpy and there's glitches)

Comment 6

[Dianna Smith [:diannaS]]

ty for looking into it.., so maybe bug 1920763 which landed on 03-04 but maybe didn't crash until a later build.

Comment 7

[Jamie Nicol [:jnicol]]

That one seems a lot more likely!

Comment 8

[BugBot [:suhaib / :marco/ :calixte]]

The bug has a crash signature, thus the bug will be considered confirmed.

Comment 9

[BugBot [:suhaib / :marco/ :calixte]]

The bug is linked to a topcrash signature, which matches the following criterion:

• Top 10 desktop browser crashes on nightly

:jimb, could you consider increasing the severity of this top-crash bug?

For more information, please visit BugBot documentation.

Comment 10

[Sotaro Ikeda [:sotaro]]

(In reply to Dianna Smith [:diannaS] from comment #6)

ty for looking into it.., so maybe bug 1920763 which landed on 03-04 but maybe didn't crash until a later build.

Hi Oleg, can you check if the following address the problem?

• change pref dom.webgpu.allow-present-without-readback to false in about:config
• Restart Firefox

Comment 11

[Sotaro Ikeda [:sotaro]]

I could reproduce the crash with mesa 25.02.0 with Intel GPU on Ubuntu 24.10. And the crash did not happen when pref dom.webgpu.allow-present-without-readback = false.

Though, I did not see the crash with the following when pref dom.webgpu.allow-present-without-readback = true.
https://webgpu.github.io/webgpu-samples/?sample=rotatingCube

Comment 12

[Oleg]

Hello.

Yes, I can confirm. With dom.webgpu.allow-present-without-readback = false crashes has gone.
It also fixes another bug 1954913.

Comment 13

[BugBot [:suhaib / :marco/ :calixte]]

Based on the topcrash criteria, the crash signatures linked to this bug are not in the topcrash signatures anymore.

For more information, please visit BugBot documentation.