110702 - [W] MLK: Memory leak of 174 bytes from 1 block allocated in JS_malloc

Status: RESOLVED DUPLICATE of bug 102655

(Core :: XUL, defect)

Description

[Navin Gupta]

malloc         [msvcrt.DLL]
            JS_malloc      [jsapi.c:1411]
            fun_xdrObject  [jsfun.c:1204]
            js_XDRObject   [jsobj.c:3452]
            JS_XDRValue    [jsxdrapi.c:542]
            XDRAtomListElement [jsscript.c:268]
            XDRAtomMap     [jsscript.c:303]
            js_XDRScript   [jsscript.c:411]
            JS_XDRScript   [jsxdrapi.c:579]
            nsXULPrototypeScript::Deserialize(nsIObjectInputStream 
*,nsIScriptContext *) [nsXULElement.cpp:4998]
            XULContentSinkImpl::OpenScript(nsIParserNode const&) 
[nsXULContentSink.cpp:1645]
            XULContentSinkImpl::OpenTag(nsIParserNode const&,nsINodeInfo *) 
[nsXULContentSink.cpp:1468]
            XULContentSinkImpl::OpenContainer(nsIParserNode const&) 
[nsXULContentSink.cpp:634]
            CWellFormedDTD::HandleStartToken(CToken *) [nsWellFormedDTD.cpp:649]
            CWellFormedDTD::HandleToken(CToken *,nsIParser *) 
[nsWellFormedDTD.cpp:522]
            nsParser::BuildModel(void) [nsParser.cpp:1979]
            nsParser::ResumeParse(int,int) [nsParser.cpp:1845]
            nsParser::ContinueParsing(void) [nsParser.cpp:1497]
            CSSLoaderImpl::Cleanup(URLKey&,SheetLoadData *) 
[nsCSSLoader.cpp:776]
            CSSLoaderImpl::SheetComplete(nsICSSStyleSheet *,SheetLoadData *) 
[nsCSSLoader.cpp:886]

Comment 1

[Navin Gupta]

We need to fix this leak. It shows up too many times in the purify log 
generated for some pop3 operations. 

Comment 2

[David Baron :dbaron: (⌚️UTC-4, no longer working on Mozilla)]

It's probably happening because you're leaking some higher-level JS object
(e.g., a GlobalWindowImpl) that's causing all this other stuff to leak.

Could you give steps to reproduce?

Comment 3

[David Baron :dbaron: (⌚️UTC-4, no longer working on Mozilla)]

s/JS object/JS root/

Comment 4

[Navin Gupta]

steps

1) Log into a pop3 mail acct.
2) Select 5 messages in a folder and delete them
3) exit

I don't see globalWindowImpl leaking, will attach bloat/leak log. 

Comment 5

[Navin Gupta]

Attachment: bloat/leak log

Comment 6

[David Baron :dbaron: (⌚️UTC-4, no longer working on Mozilla)]

I see an nsXULPDGlobalObject leaking.

Comment 7

[David Baron :dbaron: (⌚️UTC-4, no longer working on Mozilla)]

Are there simpler steps to reproduce?  I don't have access to a POP mail account.

Comment 8

[Navin Gupta]

If you want I can send you the details for a pop test account. 

Comment 9

[David Baron :dbaron: (⌚️UTC-4, no longer working on Mozilla)]

Er, actually, was this on Windows?

Comment 10

[Navin Gupta]

yes

Comment 11

[David Baron :dbaron: (⌚️UTC-4, no longer working on Mozilla)]

*** This bug has been marked as a duplicate of 102655 ***