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Last Comment Bug 615034 - "ASSERTION: Element without owner document" with GC'd document
: "ASSERTION: Element without owner document" with GC'd document
: assertion, testcase
Product: Core
Classification: Components
Component: DOM (show other bugs)
: Trunk
: x86 Mac OS X
: -- normal with 1 vote (vote)
: ---
Assigned To: Nobody; OK to take it and work on it
: Andrew Overholt [:overholt]
Depends on: strongparent
Blocks: 326633
  Show dependency treegraph
Reported: 2010-11-26 21:40 PST by Jesse Ruderman
Modified: 2012-05-14 04:21 PDT (History)
5 users (show)
See Also:
Crash Signature:
QA Whiteboard:
Iteration: ---
Points: ---
Has Regression Range: ---
Has STR: ---

testcase (289 bytes, text/html)
2010-11-26 21:40 PST, Jesse Ruderman
no flags Details
stack trace (3.21 KB, text/plain)
2010-11-26 21:41 PST, Jesse Ruderman
no flags Details

Description Jesse Ruderman 2010-11-26 21:40:54 PST
Created attachment 493496 [details]

1. Install 'DOM Fuzz Lite' from
2. Load the testcase.

###!!! ASSERTION: Element without owner document: 'Error', file content/base/src/nsGenericElement.cpp, line 3419
Comment 1 Jesse Ruderman 2010-11-26 21:41:17 PST
Created attachment 493497 [details]
stack trace
Comment 2 Boris Zbarsky [:bz] (still a bit busy) 2010-11-29 09:59:39 PST
Yeah, this assert is semi-bogus while documents can go away before their elements.

Luckily, we're planning to fix that...
Comment 3 Olli Pettay [:smaug] 2010-11-29 10:04:21 PST
Although I'm not sure whether we will actually force documents to live longer
than elements during unlink.
Comment 4 Boris Zbarsky [:bz] (still a bit busy) 2010-11-29 10:44:07 PST
Sure, but that shouldn't be an issue for this testcase.
Comment 5 Olli Pettay [:smaug] 2011-08-26 12:38:11 PDT
Jesse, this is fixed, right?
Comment 6 Jesse Ruderman 2011-08-26 13:27:24 PDT
Comment 7 Martijn Wargers [:mwargers] (not working for Mozilla) 2012-05-13 15:52:35 PDT
So should elements always have an ownerDocument then, ideally? Because I'm seeing currently a js error in one of my GreaseMonkey scripts that says that some element.ownerDocument is undefined.
Comment 8 Olli Pettay [:smaug] 2012-05-14 04:21:22 PDT
element.ownerDocument should always point to a valid document.
.ownerDocument is defined in nsIDOMNode, so if ownerDocument is undefined, it sounds like
element isn't actually element object but something else.

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