Bug 302674 – fast/webgpu/nocrash/fuzz-279542.html appears to cause other tests to timeout

• Status: RESOLVED
• Resolution: FIXED
• Component: WebGPU

[Robert Jenner]

It has been difficult to determine the scope. However, we have observed a high amount of tests timing out on Tahoe-Apple-Silicon-WK2-Debug queue. 


An example test run would be this:
https://build.webkit.org/#/builders/1701/builds/180


I have also sometimes been able to reproduce a timeout locally when running `fast/webgpu/nocrash/fuzz-279542.html` in front of another test that I wasn't able to reproduce a timeout standalone in.

[Radar WebKit Bug Importer]

<rdar://problem/164922577>

[EWS]

Test gardening commit 303147@main (a93e131e5248): <https://commits.webkit.org/303147@main>

Reviewed commits have been landed. Closing PR #54080 and removing active labels.

[Robert Jenner]

(In reply to EWS from comment #2)
> Test gardening commit 303147@main (a93e131e5248):
> <https://commits.webkit.org/303147@main>
> 
> Reviewed commits have been landed. Closing PR #54080 and removing active
> labels.

I have opted to skip this test entirely at the commit above. We are going to see if that results in less test timeouts.

[Robert Jenner]

Skipping that one test did nothing. We are now going to try skipping a few others to see if we can get the timeouts to stop.

[EWS]

Test gardening commit 303189@main (6e5dcb91113f): <https://commits.webkit.org/303189@main>

Reviewed commits have been landed. Closing PR #54114 and removing active labels.

[Mike Wyrzykowski]

Will these still run in post-commit?

[Robert Jenner]

(In reply to Mike Wyrzykowski from comment #6)
> Will these still run in post-commit?

Yes, but not on Tahoe Debug arm64. Until we can spend the time figuring out what's going on. However, I will say that by skipping these tests we now get test runs to completion on Tahoe Debug arm64. Whereas before, some of these tests were causing a jump in timeouts to over 50 on a test run, which would cause them to exit early. But again, only for Tahoe Debug arm64 wk2.

[Mike Wyrzykowski]

As long as we have Tahoe Release arm64 that should be sufficient, thank you