[Webkit-unassigned] [Bug 230333] New: REGRESSION(r282383): [WPE] Random run-webkit-tests early exits due to timeouts

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=230333

            Bug ID: 230333
           Summary: REGRESSION(r282383): [WPE] Random run-webkit-tests
                    early exits due to timeouts
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WPE WebKit
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: lmoura at igalia.com
                CC: bugs-noreply at webkitgtk.org

Since r282383/241645 at main, the WPE release test bot[1] has been either exiting early roughly half the time due to reaching the timeouts limits (50) between 40k and 50k tests run, or the number of unexpected flaky timeouts doubles from ~20 to ~40.

In the GTK-Release, a similar behavior appears but with just 1 or 2 flaky timeouts being more frequent, without major timeouts.

These are a few tests that have been consistently timing out in WPE-Release when the bots exit early (or flaky timeout when the bot passes):

fast/frames/lots-of-iframes.html
fast/frames/lots-of-objects.html
fast/selectors/matches-backtracking.html
http/tests/cache/disk-cache/redirect-chain-limits.html
http/tests/misc/large-js-program.py
http/tests/misc/repeat-open-cancel.html
http/tests/xmlhttprequest/redirect-cross-origin-tripmine.html
http/wpt/crypto/unwrap-rsa-key-crash.any.html

To reproduce the new timeouts, so far I had to run the entire WPE test suite.

Upstream (as of r282464):
* Unexpected timeouts: 48
* Total test time: 2318 seconds

With r282383 reverted:
* Unexpected timeouts: 13
* Total test time: 1333 seconds

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