Bug 140947 – [Win] JSC Runs out of memory on certain tests

• Status: NEW
• Component: JavaScriptCore

[Brent Fulgham]

The following layout tests fail (or are flaky) because they run out of memory:

js/slow-stress/Int32Array-alloc-huge-long-lived.html
js/slow-stress/Int32Array-alloc-large-long-lived.html

Example output:

--- /cygdrive/c/Projects/WebKit/OpenSource/WebKitBuild/Release/bin32/layout-test-results/js/slow-stress/Int32Array-alloc-huge-long-lived-expected.txt
+++ /cygdrive/c/Projects/WebKit/OpenSource/WebKitBuild/Release/bin32/layout-test-results/js/slow-stress/Int32Array-alloc-huge-long-lived-actual.txt
@@ -1,10 +1,11 @@
+CONSOLE MESSAGE: line 8: Error: Out of memory
 JSRegress/Int32Array-alloc-huge-long-lived
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
 
 
-PASS no exception thrown
-PASS successfullyParsed is true
+FAIL caught exception: Error: Out of memory
+FAIL successfullyParsed should be true (of type boolean). Was undefined (of type undefined).
 
 TEST COMPLETE

[Brent Fulgham]

Also (flaky):

js/dfg-int16array.html
js/dom/create-lots-of-workers.html
js/regress/array-prototype-map.html
js/regress/ArrayBuffer-Int8Array-alloc-long-lived.html
js/slow-stress/Int32Array-alloc-huge.html
js/slow-stress/variadic-closure-call.html
js/slow-stress/array-prototype-filter.html

In many cases they alternate between failures and crashes.

[Radar WebKit Bug Importer]

<rdar://problem/19618597>