So far one beta tester of our product hit the following crash (not
sure what exactly they happened to be doing at the time). The crash is
under WebKit and the only place we use WebKit in our product is via a
WebView that we load with a html file that contains only inlined CSS.
We load this html file after the nib containing the WebView is loaded
by controlling class (nib owner). While our product runs we add DOM
nodes using the DOM API and that is about it. At no time do we have
the WebView attempting to load remote resources nor do we have
anything like a status bar.
I am at a loss for an explanation for the following crash. Any ideas?
(except for this one crash we have had no issues)
Snippet of some related code...
// Load our msg_log HTML into WebView, this file contains the
inline style sheet and no body content
NSURL* url = [NSURL fileURLWithPath:[[NSBundle mainBundle]
pathForResource:@"msg_log" ofType:@"html"]];
[[messageOutputWebView mainFrame] loadRequest:[NSURLRequest
requestWithURL:url]];
...
DOMHTMLDocument* doc = (DOMHTMLDocument*)[[messageOutputWebView
mainFrame] DOMDocument];
if (doc == nil) {
return;
}
if ([[doc body] hasChildNodes] ) {
[[doc body] appendChild:[doc createElement:@"br"]];
}
DOMHTMLDivElement* entry = (DOMHTMLDivElement*)[doc createElement:@"div"];
[entry setClassName:[@"msg_entry chat " stringByAppendingString:type]];
if ([header length] > 0) {
DOMText* headerText = [doc createTextNode:header];
DOMElement* headerElement = [doc createElement:@"h1"];
[headerElement appendChild:headerText];
[entry appendChild:headerElement];
}
if ([message length] > 0) {
DOMText* messageText = [doc createTextNode:message];
DOMElement* messageElement = [doc createElement:@"p"];
[messageElement appendChild:messageText];
[entry appendChild:messageElement];
}
[[doc body] appendChild:entry];
// Have our WebView scroll the top of the newly added node into
view... (requires JavaScript)
[[doc body] setValue:[entry valueForKey:@"offsetTop"] forKey:@"scrollTop"];
------
OS Version: Mac OS X 10.5.2 (9C31)
Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: KERN_INVALID_ADDRESS at 0x00000000c59c80b3
Crashed Thread: 0
Thread 0 Crashed:
0 libobjc.A.dylib 0x9540f6e8 objc_msgSend + 24
1 com.apple.WebKit 0x965b526a
WebChromeClient::setStatusbarText(WebCore::String const&) + 122
2 com.apple.WebCore 0x95dfbdf0
WebCore::Chrome::setStatusbarText(WebCore::Frame*, WebCore::String
const&) + 128
3 com.apple.WebCore 0x95dfbd4b
WebCore::Frame::setJSStatusBarText(WebCore::String const&) + 75
4 com.apple.WebCore 0x95dfb5e4
WebCore::FrameLoader::didOpenURL(WebCore::KURL const&) + 196
5 com.apple.WebCore 0x95df9311
WebCore::FrameLoader::commitProvisionalLoad(WTF::PassRefPtr<WebCore::CachedPage>)
+ 449
6 com.apple.WebCore 0x95df90f5 WebCore::DocumentLoader::commitIfReady() + 85
7 com.apple.WebCore 0x95e4d093
WebCore::DocumentLoader::commitLoad(char const*, int) + 35
8 com.apple.WebCore 0x95e4cc52
WebCore::ResourceLoader::didReceiveData(char const*, int, long long,
bool) + 82
9 com.apple.WebCore 0x95e4cbc7
WebCore::MainResourceLoader::didReceiveData(char const*, int, long
long, bool) + 71
10 com.apple.WebCore 0x95e4cb78
WebCore::ResourceLoader::didReceiveData(WebCore::ResourceHandle*, char
const*, int, int) + 56
11 com.apple.WebCore 0x95e4cb20 -[WebCoreResourceHandleAsDelegate
connection:didReceiveData:lengthReceived:] + 160
12 com.apple.Foundation 0x947b53b7
-[NSURLConnection(NSURLConnectionReallyInternal)
sendDidReceiveData:originalLength:] + 119
13 com.apple.Foundation 0x947b531e _NSURLConnectionDidReceiveData + 94
14 com.apple.CFNetwork 0x900160af sendDidReceiveDataCallback + 518
15 com.apple.CFNetwork 0x9001376d _CFURLConnectionSendCallbacks + 1559
16 com.apple.CFNetwork 0x900130d9 muxerSourcePerform + 283
17 com.apple.CoreFoundation 0x966ea62e CFRunLoopRunSpecific + 3166
18 com.apple.CoreFoundation 0x966ead18 CFRunLoopRunInMode + 88
19 com.apple.HIToolbox 0x9268d6a0 RunCurrentEventLoopInMode + 283
20 com.apple.HIToolbox 0x9268d4b9 ReceiveNextEventCommon + 374
21 com.apple.HIToolbox 0x9268d32d BlockUntilNextEventMatchingListInMode + 106
22 com.apple.AppKit 0x91d4f7d9 _DPSNextEvent + 657
23 com.apple.AppKit 0x91d4f08e -[NSApplication
nextEventMatchingMask:untilDate:inMode:dequeue:] + 128
24 com.apple.AppKit 0x91d480c5 -[NSApplication run] + 795
25 com.apple.AppKit 0x91d1530a NSApplicationMain + 574
26 blah 0x00002872 0x1000 + 6258
27 blah 0x00002799 0x1000 + 6041
...many other unrelated threads...
Thread 0 crashed with X86 Thread State (32-bit):
eax: 0x15061f40 ebx: 0x965b52cd ecx: 0x954a81c4 edx: 0xc59c8093
edi: 0x00757880 esi: 0xbfffe3cc ebp: 0xbfffe368 esp: 0xbfffe2c8
ss: 0x0000001f efl: 0x00010202 eip: 0x9540f6e8 cs: 0x00000017
ds: 0x0000001f es: 0x0000001f fs: 0x00000000 gs: 0x00000037
cr2: 0xc59c80b3
...no obvious haxies...
0x91d0f000 - 0x9250cfef com.apple.AppKit 6.5.2 (949.26)
<bc4593edd8a224409fb6953a354505a0>
/System/Library/Frameworks/AppKit.framework/Versions/C/AppKit
0x9265d000 - 0x92965fff com.apple.HIToolbox 1.5.2 (???)
<7449d6f2da33ded6936243a92e307459>
/System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/HIToolbox.framework/Versions/A/HIToolbox
0x94746000 - 0x949c0fe7 com.apple.Foundation 6.5.4 (677.15)
<6216196287f98a65ddb654d04d773e7b>
/System/Library/Frameworks/Foundation.framework/Versions/C/Foundation
0x96678000 - 0x967aafef com.apple.CoreFoundation 6.5.1 (476.10)
<d5bed2688a5eea11a6dc3a3c5c17030e>
/System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation
0x95ddf000 - 0x962f5fff com.apple.WebCore 5523.15.1 (5523.15.1)
<23d5f6fe4905a5361b31b25bb4de04d6>
/System/Library/Frameworks/WebKit.framework/Versions/A/Frameworks/WebCore.framework/Versions/A/WebCore
0x965ac000 - 0x96667fe3 com.apple.WebKit 5523.15.1 (5523.15.1)
<176c97b181ca68b309ecded2ed53b923>
/System/Library/Frameworks/WebKit.framework/Versions/A/WebKit
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