mfcEmbed/testEmbed crash (assert) on startup in htmlparser

VERIFIED WORKSFORME

Status

()

Core
Embedding: APIs
--
critical
VERIFIED WORKSFORME
17 years ago
16 years ago

People

(Reporter: David Epstein, Assigned: Chak Nanga)

Tracking

Trunk
x86
Windows NT
Points:
---

Firefox Tracking Flags

(Not tracked)

Details

(Reporter)

Description

17 years ago
using 0.9.3+ 20010816 full build

mozilla.exe works fine, but mfcEmbed doesn't start up from the /bin directory.
Here are the 2 asserts I've seen on different occassions (pressing Ignore
doesn't allow app to continue; instead we get a "memory could not be read" error):

"NS_ENSURE_TRUE(NS_SUCCEEDED(result)) failed: '(!((result) & 0x800...))', file
/mozilla/htmlparser/src/nsHTMLTokens.cpp line 1986"

or

"NS_ENSURE_TRUE(NS_SUCCEEDED(result)) failed: '(!((result) & 0x800...))', file
/mozilla/htmlparser/src/nsScanner.cpp line 1254"


Here's the call stack for the nsHTMLTokens.cpp assert:

nsDebug::Assertion(const char * 0x0194218c, const char * 0x01942170, const char
* 0x01942138, int 1986) line 290 + 13 bytes
nsDebug::WarnIfFalse(const char * 0x0194218c, const char * 0x01942170, const
char * 0x01942138, int 1986) line 396 + 21 bytes
CEntityToken::ConsumeEntity(unsigned short 38, nsString & {...}, nsScanner &
{...}) line 1986 + 38 bytes
CEntityToken::Consume(unsigned short 114, nsScanner & {...}, int 4130) line 1886
+ 21 bytes
nsHTMLTokenizer::ConsumeEntity(unsigned short 38, CToken * & 0x028afca0,
nsScanner & {...}) line 852 + 31 bytes
nsHTMLTokenizer::ConsumeToken(nsScanner & {...}, int & 0) line 492 + 24 bytes
nsParser::Tokenize(int 0) line 2799 + 28 bytes
nsParser::ResumeParse(int 1, int 0) line 2084 + 12 bytes
nsParser::OnDataAvailable(nsParser * const 0x01f23c78, nsIRequest * 0x01ec1130,
nsISupports * 0x00000000, nsIInputStream * 0x01f52330, unsigned int 0, unsigned
int 16384) line 2690 + 19 bytes
nsDocumentOpenInfo::OnDataAvailable(nsDocumentOpenInfo * const 0x01ed0540,
nsIRequest * 0x01ec1130, nsISupports * 0x00000000, nsIInputStream * 0x01f52330,
unsigned int 0, unsigned int 16384) line 241 + 46 bytes
nsStreamListenerTee::OnDataAvailable(nsStreamListenerTee * const 0x01f52380,
nsIRequest * 0x01ec1130, nsISupports * 0x00000000, nsIInputStream * 0x01ed2a30,
unsigned int 0, unsigned int 16384) line 56 + 51 bytes
nsHttpChannel::OnDataAvailable(nsHttpChannel * const 0x01ec1134, nsIRequest *
0x01ed23b0, nsISupports * 0x00000000, nsIInputStream * 0x01ed2a30, unsigned int
0, unsigned int 16384) line 2186 + 57 bytes
nsOnDataAvailableEvent::HandleEvent() line 178 + 70 bytes
nsARequestObserverEvent::HandlePLEvent(PLEvent * 0x01f30954) line 65
PL_HandleEvent(PLEvent * 0x01f30954) line 590 + 10 bytes
PL_ProcessPendingEvents(PLEventQueue * 0x010ebae0) line 520 + 9 bytes
_md_EventReceiverProc(HWND__ * 0x005e01cc, unsigned int 49455, unsigned int 0,
long 17742560) line 1071 + 9 bytes
USER32! 77e71820()
010e


Here's the call stack for the nsScanner.cpp assert:

nsDebug::Assertion(const char * 0x01943cb4, const char * 0x01943c98, const char
* 0x01943c64, int 1254) line 290 + 13 bytes
nsDebug::WarnIfFalse(const char * 0x01943cb4, const char * 0x01943c98, const
char * 0x01943c64, int 1254) line 396 + 21 bytes
nsScanner::ReadUntil(nsReadingIterator<unsigned short> & {...},
nsReadingIterator<unsigned short> & {...}, const nsReadEndCondition & {...}, int
0) line 1254 + 39 bytes
CTextToken::Consume(unsigned short 0, nsScanner & {...}, int 4130) line 552 + 23
bytes
nsHTMLTokenizer::ConsumeText(CToken * & 0x00000000, nsScanner & {...}) line 936
+ 27 bytes
nsHTMLTokenizer::ConsumeToken(nsScanner & {...}, int & 0) line 502 + 19 bytes
nsParser::Tokenize(int 0) line 2799 + 28 bytes
nsParser::ResumeParse(int 0, int 0) line 2084 + 12 bytes
nsParser::Parse(const nsAString & {...}, void * 0x00000001, const nsString &
{...}, int 0, int 1, nsDTDMode eDTDMode_autodetect) line 1944 + 15 bytes
nsHTMLDocument::WriteCommon(const nsAString & {...}, int 0) line 2337 + 201 bytes
nsHTMLDocument::ScriptWriteCommon(int 0) line 2434 + 19 bytes
nsHTMLDocument::Write(nsHTMLDocument * const 0x01f21404) line 2461
XPTC_InvokeByIndex(nsISupports * 0x01f21404, unsigned int 19, unsigned int 0,
nsXPTCVariant * 0x0012e270) line 139
XPCWrappedNative::CallMethod(XPCCallContext & {...}, XPCWrappedNative::CallMode
CALL_METHOD) line 1884 + 42 bytes
XPC_WN_CallMethod(JSContext * 0x01e99630, JSObject * 0x00fec508, unsigned int 1,
long * 0x028f612c, long * 0x0012e4a8) line 1252 + 14 bytes
js_Invoke(JSContext * 0x01e99630, unsigned int 1, unsigned int 0) line 807 + 23
bytes
js_Interpret(JSContext * 0x01e99630, long * 0x0012f2bc) line 2699 + 15 bytes
js_Execute(JSContext * 0x01e99630, JSObject * 0x00feb970, JSScript * 0x03093230,
JSStackFrame * 0x00000000, unsigned int 0, long * 0x0012f2bc) line 986 + 13 bytes
JS_EvaluateUCScriptForPrincipals(JSContext * 0x01e99630, JSObject * 0x00feb970,
JSPrincipals * 0x01f2aaa0, const unsigned short * 0x0012f41c, unsigned int 20,
const char * 0x03093430, unsigned int 522, long * 0x0012f2bc) line 3302 + 25 bytes
nsJSContext::EvaluateString(nsJSContext * const 0x01e98670, const nsAString &
{...}, void * 0x00feb970, nsIPrincipal * 0x01f2aa9c, const char * 0x03093430,
unsigned int 522, const char * 0x012b869c, nsAString & {...}, int * 0x0012f328)
line 618 + 85 bytes
nsScriptLoader::EvaluateScript(nsScriptLoadRequest * 0x03093590, const
nsAFlatString & {...}) line 571
nsScriptLoader::ProcessRequest(nsScriptLoadRequest * 0x03093590) line 483 + 22 bytes
nsScriptLoader::ProcessScriptElement(nsScriptLoader * const 0x01f2ab10,
nsIDOMHTMLScriptElement * 0x03093828, nsIScriptLoaderObserver * 0x0309382c) line
426 + 15 bytes
nsHTMLScriptElement::SetDocument(nsHTMLScriptElement * const 0x03093800,
nsIDocument * 0x01f212c0, int 0, int 1) line 140
nsGenericHTMLContainerElement::AppendChildTo(nsGenericHTMLContainerElement *
const 0x03093a30, nsIContent * 0x03093800, int 0, int 0) line 3781
HTMLContentSink::ProcessSCRIPTTag(const nsIParserNode & {...}) line 5010
HTMLContentSink::AddLeaf(HTMLContentSink * const 0x01f2fe90, const nsIParserNode
& {...}) line 3433 + 12 bytes
CNavDTD::AddLeaf(const nsIParserNode * 0x02847688) line 3754 + 22 bytes
CNavDTD::HandleScriptToken(const nsIParserNode * 0x02847688) line 2214 + 12 bytes
CNavDTD::OpenContainer(const nsCParserNode * 0x02847688, nsHTMLTag
eHTMLTag_script, int 1, nsEntryStack * 0x00000000) line 3405 + 12 bytes
CNavDTD::HandleDefaultStartToken(CToken * 0x028e05d0, nsHTMLTag eHTMLTag_script,
nsCParserNode * 0x02847688) line 1291 + 20 bytes
CNavDTD::HandleStartToken(CToken * 0x028e05d0) line 1701 + 22 bytes
CNavDTD::HandleToken(CNavDTD * const 0x01f52070, CToken * 0x00000000, nsIParser
* 0x01f23ce0) line 870 + 12 bytes
CNavDTD::BuildModel(CNavDTD * const 0x01f52070, nsIParser * 0x01f23ce0,
nsITokenizer * 0x01f53c40, nsITokenObserver * 0x00000000, nsIContentSink *
0x01f2fe90) line 506 + 20 bytes
nsParser::BuildModel() line 2219 + 34 bytes
nsParser::ResumeParse(int 1, int 0) line 2085 + 11 bytes
nsParser::OnDataAvailable(nsParser * const 0x01f23ce8, nsIRequest * 0x01ec10f0,
nsISupports * 0x00000000, nsIInputStream * 0x01f52490, unsigned int 16384,
unsigned int 16384) line 2690 + 19 bytes
nsDocumentOpenInfo::OnDataAvailable(nsDocumentOpenInfo * const 0x01ed0500,
nsIRequest * 0x01ec10f0, nsISupports * 0x00000000, nsIInputStream * 0x01f52490,
unsigned int 16384, unsigned int 16384) line 241 + 46 bytes
nsStreamListenerTee::OnDataAvailable(nsStreamListenerTee * const 0x01f524e0,
nsIRequest * 0x01ec10f0, nsISupports * 0x00000000, nsIInputStream * 0x01ed29f0,
unsigned int 16384, unsigned int 16384) line 56 + 51 bytes
nsHttpChannel::OnDataAvailable(nsHttpChannel * const 0x01ec10f4, nsIRequest *
0x01ed2370, nsISupports * 0x00000000, nsIInputStream * 0x01ed29f0, unsigned int
16384, unsigned int 16384) line 2186 + 57 bytes
nsOnDataAvailableEvent::HandleEvent() line 178 + 70 bytes
nsARequestObserverEvent::HandlePLEvent(PLEvent * 0x01f6b154) line 65
PL_HandleEvent(PLEvent * 0x01f6b154) line 590 + 10 bytes
PL_ProcessPendingEvents(PLEventQueue * 0x010ebae0) line 520 + 9 bytes
_md_EventReceiverProc(HWND__ * 0x0127028a, unsigned int 49455, unsigned int 0,
long 17742560) line 1071 + 9 bytes
USER32! 77e71820()
010ebae0()

Comment 1

17 years ago
Two comments stand out from bug 95614:

dbaron:
> Tor and I both saw parser crashes related to an uninitialized iterator in
> CTextToken::Consume within a few minutes of starting to use today's build.

harishd:

> The old patch (attachment id=45504) uses the NS_ENSURE_SUCCESS macro which 
> will assert. A failure result code from nsScanner::Peek() does not indicate 
> an exceptional condition, just that we've reached the end of the current 
> buffer. Hence, an assertion is incorrect and the macro shouldn't be used.

I remember seeing an assertion which I believe was similar to this just before
my linux trunk build went kaput due to the blocker earlier today.  I *think*
that the fix for that bug should take care of this as well.





(Reporter)

Comment 2

17 years ago
This didn't happen on the 0.9.3+ Nightly trunk build 20010817.
(Assignee)

Comment 3

17 years ago
Marking this WORKSFORME - per David's comments above that it works ok in 0.9.3+
Nightly trunk build 20010817.
Status: NEW → RESOLVED
Last Resolved: 17 years ago
Resolution: --- → WORKSFORME
(Reporter)

Comment 4

17 years ago
Looks like fix to bug 95614 fixed this as well. mfcEmbed launches fine in both
the debug and optimized builds. Tested against debug build 20010820 and nightly
trunk build 20010822.
Status: RESOLVED → VERIFIED
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