206785 2020-01-24 17:05:06 -0800 REGRESSION (r254964-r254970?): Catalina Debug JSC bot timing out while running tests 2020-01-24 17:23:13 -0800 1 1 1 Unclassified WebKit New Bugs WebKit Nightly Build Unspecified Unspecified RESOLVED FIXED InRadar P2 Normal --- 1 ryanhaddad webkit-unassigned keith_miller webkit-bot-watchers-bugzilla webkit-bug-importer ysuzuki oldest_to_newest 1610928 0 ryanhaddad 2020-01-24 17:05:06 -0800 The Catalina Debug JSC bot is going 20 minutes without output after running tests for over 3 hours, which causes the test run to get killed: ... ... Running mozilla-tests.yaml/js1_6/String/regress-306591.js.mozilla-dfg-eager-no-cjit-validate-phases Running mozilla-tests.yaml/js1_6/String/regress-306591.js.mozilla Running mozilla-tests.yaml/js1_6/String/regress-306591.js.mozilla-ftl-eager-no-cjit-validate-phases command timed out: 1200 seconds without output running ['perl', './Tools/Scripts/run-javascriptcore-tests', '--no-build', '--no-fail-fast', '--json-output=jsc_results.json', '--debug', '--builder-name', 'Apple-Catalina-Debug-JSC-Tests', '--build-number', '184', '--buildbot-worker', 'bot638', '--buildbot-master', 'build.webkit.org', '--report', 'https://results.webkit.org'], attempting to kill https://build.webkit.org/builders/Apple-Catalina-Debug-JSC-Tests/builds/191 1610929 1 ryanhaddad 2020-01-24 17:05:42 -0800 The last successful run was with r254964. The first failing run was with r254970. 1610935 2 ryanhaddad 2020-01-24 17:09:23 -0800 Here are the two JSC related changes in this range: [JSC] Bits from Operand should fit in bits reserved in AbstractHeap's Payload ​https://bugs.webkit.org/show_bug.cgi?id=206619 https://trac.webkit.org/changeset/254968/webkit It should be possible to build JavaScriptCore with LLVM Source-based Code Coverage, run the tests and see the coverage data ​https://bugs.webkit.org/show_bug.cgi?id=206389 1610939 3 ysuzuki 2020-01-24 17:22:07 -0800 Committed r255110: <https://trac.webkit.org/changeset/255110> 1610941 4 webkit-bug-importer 2020-01-24 17:23:13 -0800 <rdar://problem/58887459>