Bug 181227 – [MIPS] JSC test failure: stress/new-largeish-contiguous-array-with-size.js

• Component: JavaScriptCore
• Status: RESOLVED FIXED

[Guillaume Emont]

This failure happens about every 2-3 runs on the MIPS buildbot. We see:

  stress/new-largeish-contiguous-array-with-size.js.ram-size-10000000: Exception: Error: heap too big after forced GC: 1368418

Locally, I can reproduce and get a different value:

  # i=1; while jsc --forceRAMSize=10000000 JSTests/stress/new-largeish-contiguous-array-with-size.js ; do echo $i; i=$((i+1)); done
  1
  2
  Exception: Error: heap too big after forced GC: 1355035

[Guillaume Emont]

It is unclear to me whether this is a sign of a bug or that the test needs to check against a higher maximum.

[Guillaume Emont]

It looks like on different runs, I get one of the following progression of heap sizes:
 - 3359463 before GC and 158823 after GC
 - 3359495 before GC and 158855 after GC
 - 2159159 before GC and 558839 after GC
 - 1759047 before GC and 958887 after GC
 - 2559143 before GC and 1358903 after GC (failing the test)

For some of them, I get slight variations with the last 2 digits being different.

[Guillaume Emont]

*** Bug 227356 has been marked as a duplicate of this bug. ***

[Geza Lore]

Created attachment 452174 [details]
Patch

[EWS]

Committed r289889 (247327@main): <https://commits.webkit.org/247327@main>

All reviewed patches have been landed. Closing bug and clearing flags on attachment 452174 [details].

[Radar WebKit Bug Importer]

<rdar://problem/89022920>