[Webkit-unassigned] [Bug 174502] New: [GTK][WPE] stress/dont-reserve-huge-capacity-lexer.js JSC test failing

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=174502

            Bug ID: 174502
           Summary: [GTK][WPE] stress/dont-reserve-huge-capacity-lexer.js
                    JSC test failing
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: New Bugs
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: zan at falconsigh.net
                CC: clopez at igalia.com, mcatanzaro at igalia.com,
                    utatane.tea at gmail.com

The stress/dont-reserve-huge-capacity-lexer.js JSC test, and the various variations of it, is failing on the bots.

The problem isn't in the test itself.  The failures occur when multiple instances of this test (in different variations) are run in parallel.  Because the test on its own consumes a lot of memory, multiple instances consume much more in total, faulting the latter-spawned tests.

The result is a variable amount of failures on specific JSC test runs:
https://build.webkit.org/builders/WPE%20Linux%2064-bit%20Release%20%28Tests%29/builds/1464/steps/jscore-test/logs/stdio
https://build.webkit.org/builders/WPE%20Linux%2064-bit%20Release%20%28Tests%29/builds/1465/steps/jscore-test/logs/stdio

The test itself is already designated as memory-wasteful, and is not run when passing the --memory-limited flag.  But that's not the case on the bots, and these systems obviously don't have enough RAM available to accommodate all the variations of this test that might be run in parallel.

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