786014 - Crash in js::gcstats::Statistics::printStats() + 462 (Statistics.cpp:497)

Status: REOPENED

(Core :: JavaScript Engine, defect)

Description

[Gregor Wagner [:gwagner]]

With a OSX debug build and GC logging on I always get 

WARNING: GetWindowsTable returned null: file /Users/idefix2/moz/ws9/dom/base/nsWindowMemoryReporter.cpp, line 627
Assertion failure: ok, at /Users/idefix2/moz/ws9/xpcom/build/mozPoisonWriteMac.cpp:54

Full BT: http://pastebin.mozilla.org/1779099

Comment 2

[Bill McCloskey [inactive unless it's an emergency] (:billm)]

I don't think this is a dupe. However, seeing bug 794178 makes me understand this bug. Before I had assumed that we had a bad file pointer or something, which didn't make any sense. However, this real reason is much stupider. After bug 732173 landed, we're apparently no longer allowed to write to any file descriptor at all during shutdown (although only on Macs). We're not even allowed to write to stdout or stderr I guess.

Maybe we should only do the printStats thing in shell builds.