[Webkit-unassigned] [Bug 7884] New: Selecting a custom style sheet crashes 20/3 nightly

[bugzilla-daemon at opendarwin.org]

http://bugzilla.opendarwin.org/show_bug.cgi?id=7884

           Summary: Selecting a custom style sheet crashes 20/3 nightly
           Product: WebKit
           Version: 420+ (nightly)
          Platform: Macintosh
        OS/Version: Mac OS X 10.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: Layout and Rendering
        AssignedTo: webkit-unassigned at opendarwin.org
        ReportedBy: mustiman at gmail.com


Steps to reproduce when WebKit nightly is open and NO custom style sheet is
selected via Safari beforehand:

1. Select a custom style sheet in Preferences --> Advanced --> Style Sheet
2. reload the current page

Steps to reproduce when a custom style sheet is selected via Safari before
launching WebKit nightly

1. Launch WebKit nightly.
2. Crashes upon launch, even when trying to load the WebKit start page.

Part of crash log

Exception:  EXC_BAD_ACCESS (0x0001)
Codes:      KERN_INVALID_ADDRESS (0x0001) at 0xbf7fffdc

Thread 0 Crashed:
0   com.apple.JavaScriptCore    0x001763a8 KXMLCore::fastMalloc(unsigned long)
+ 8
1   com.apple.WebCore           0x01367b50 KXMLCore::Vector<char, (unsigned
long)4096>::reserveCapacity(unsigned long) + 64
2   com.apple.WebCore           0x01367c04 KXMLCore::Vector<char, (unsigned
long)4096>::expandCapacity(unsigned long) + 84
3   com.apple.WebCore           0x01367c54 KXMLCore::Vector<char, (unsigned
long)4096>::resize(unsigned long) + 52
4   com.apple.WebCore           0x012be808 KURL::parse(char const*,
DeprecatedString const*) + 1176
5   com.apple.WebCore           0x012c0584 KURL::KURL[in-charge](KURL const&,
DeprecatedString const&, WebCore::TextEncoding const&) + 1860
6   com.apple.WebCore           0x011608fc
WebCore::Document::completeURL(DeprecatedString const&) + 428
7   com.apple.WebCore           0x011807c0
WebCore::Cache::requestStyleSheet(WebCore::DocLoader*, WebCore::String const&,
bool, long, DeprecatedString const&) + 112
8   com.apple.WebCore           0x0113b7d4
WebCore::Frame::setUserStyleSheet(KURL const&) + 260
9   com.apple.WebCore           0x01348814
WebCore::UserStyleSheetLoader::setStyleSheet(WebCore::String const&,
WebCore::String const&) + 52
10  com.apple.WebCore           0x0113b7fc
WebCore::Frame::setUserStyleSheet(KURL const&) + 300
11  com.apple.WebCore           0x01348814
WebCore::UserStyleSheetLoader::setStyleSheet(WebCore::String const&,
WebCore::String const&) + 52
12  com.apple.WebCore           0x0113b7fc
WebCore::Frame::setUserStyleSheet(KURL const&) + 300
13  com.apple.WebCore           0x01348814
WebCore::UserStyleSheetLoader::setStyleSheet(WebCore::String const&,
WebCore::String const&) + 52
14  com.apple.WebCore           0x0113b7fc
WebCore::Frame::setUserStyleSheet(KURL const&) + 300
15  com.apple.WebCore           0x01348814
WebCore::UserStyleSheetLoader::setStyleSheet(WebCore::String const&,
WebCore::String const&) + 52
16  com.apple.WebCore           0x0113b7fc
WebCore::Frame::setUserStyleSheet(KURL const&) + 300
17  com.apple.WebCore           0x01348814
WebCore::UserStyleSheetLoader::setStyleSheet 

snip snip snip

507 com.apple.WebCore           0x01348814
WebCore::UserStyleSheetLoader::setStyleSheet(WebCore::String const&,
WebCore::String const&) + 52
508 com.apple.WebCore           0x0113b7fc
WebCore::Frame::setUserStyleSheet(KURL const&) + 300


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