Bug 129758 – REGRESSION: js/dom/create-lots-of-workers.html frequently crashes (sometimes in js/dom/cross-frame-bad-time.html)

• Status: NEW
• Component: JavaScriptCore

[Alexey Proskuryakov]

js/dom/create-lots-of-workers.html frequently crashes, spawning an extreme number of threads. This is sometimes reported for this tests, and sometimes for the next one, js/dom/cross-frame-bad-time.html.

There are only 100 workers, but >2000 threads: <http://build.webkit.org/results/Apple%20MountainLion%20Debug%20WK1%20(Tests)/r165119%20(13072)/js/dom/cross-frame-bad-time-crash-log.txt>.

[Mark Hahnenberg]

(In reply to comment #0)
> js/dom/create-lots-of-workers.html frequently crashes, spawning an extreme number of threads. This is sometimes reported for this tests, and sometimes for the next one, js/dom/cross-frame-bad-time.html.
> 
> There are only 100 workers, but >2000 threads: <http://build.webkit.org/results/Apple%20MountainLion%20Debug%20WK1%20(Tests)/r165119%20(13072)/js/dom/cross-frame-bad-time-crash-log.txt>.

I count at least 261 workers in the crash log, but you're right, this is a little crazy. We spawn ~6 GC threads and 1 block freeing thread per VM (along with the main worker thread).

[Alexey Proskuryakov]

Skipped the test in <http://trac.webkit.org/r165360>, as it was making bots very red.

A fix would be appreciated, we don't have a lot of workers tests to skip.

[Alexey Proskuryakov]

*** Bug 129962 has been marked as a duplicate of this bug. ***

[David Kilzer (:ddkilzer)]

<rdar://problem/19760988>

[David Kilzer (:ddkilzer)]

Skipped on ios-simulator:  <http://trac.webkit.org/changeset/179818>