Bug 77995

Summary: [Qt] REGRESSION(r106918): It made svg/zoom/page/zoom-foreignObject.svg crash with Qt5-WK1
Product: WebKit Reporter: Csaba Osztrogonác <ossy>
Component: Tools / TestsAssignee: Nobody <webkit-unassigned>
Status: RESOLVED FIXED    
Severity: Critical CC: hausmann, kling, ossy, rafael.lobo, rhodovan.u-szeged, webkit.review.bot, zherczeg, zimmermann
Priority: P1 Keywords: Qt, QtTriaged
Version: 528+ (Nightly build)   
Hardware: All   
OS: All   
Bug Depends on:    
Bug Blocks: 77736    
Attachments:
Description Flags
Speculative fix none

Description Csaba Osztrogonác 2012-02-07 08:42:54 PST 
Check https://bugs.webkit.org/show_bug.cgi?id=77736#c21 for details.
It is P1-critical bug, because crashes are always serious problems.
Comment 1 Csaba Osztrogonác 2012-02-07 10:12:20 PST 
(In reply to comment #0)
> Check https://bugs.webkit.org/show_bug.cgi?id=77736#c21 for details.
> It is P1-critical bug, because crashes are always serious problems.
It is true on 32 bit relase mode.

I tried a 64 bit debug build (because 32 bit debug build is impossible)
and now an other test crashes: svg/zoom/page/zoom-coords-viewattr-01-b.svg when I run svg/zoom tests. It passes if I run only this test.

Here is the crash log:
ASSERTION FAILED: !result
/home/oszi/WebKit/Source/JavaScriptCore/wtf/ThreadingPthreads.cpp(282) : void WTF::Mutex::lock()
1   0x7fd7ffcdebc5 /home/oszi/WebKit/WebKitBuild/Debug/lib/libQtWebKit.so.4(WTF::Mutex::lock()+0x45) [0x7fd7ffcdebc5]
2   0x7fd7fe2a17da /home/oszi/WebKit/WebKitBuild/Debug/lib/libQtWebKit.so.4(WTF::Locker<WTF::Mutex>::Locker(WTF::Mutex&)+0x2a) [0x7fd7fe2a17da]
3   0x7fd7ff3427a2 /home/oszi/WebKit/WebKitBuild/Debug/lib/libQtWebKit.so.4(void WTF::addIterator<WebCore::RenderObject const*, std::pair<WebCore::RenderObject const*, WebCore::SVGImageCache::ImageData>, WTF::PairFirstExtractor<std::pair<WebCore::RenderObject const*, WebCore::SVGImageCache::ImageData> >, WTF::PtrHash<WebCore::RenderObject const*>, WTF::PairHashTraits<WTF::HashTraits<WebCore::RenderObject const*>, WTF::HashTraits<WebCore::SVGImageCache::ImageData> >, WTF::HashTraits<WebCore::RenderObject const*> >(WTF::HashTable<WebCore::RenderObject const*, std::pair<WebCore::RenderObject const*, WebCore::SVGImageCache::ImageData>, WTF::PairFirstExtractor<std::pair<WebCore::RenderObject const*, WebCore::SVGImageCache::ImageData> >, WTF::PtrHash<WebCore::RenderObject const*>, WTF::PairHashTraits<WTF::HashTraits<WebCore::RenderObject const*>, WTF::HashTraits<WebCore::SVGImageCache::ImageData> >, WTF::HashTraits<WebCore::RenderObject const*> > const*, WTF::HashTableConstIterator<WebCore::RenderObject const*, std::pair<WebCore::RenderObject const*, WebCore::SVGImageCache::ImageData>, WTF::PairFirstExtractor<std::pair<WebCore::RenderObject const*, WebCore::SVGImageCache::ImageData> >, WTF::PtrHash<WebCore::RenderObject const*>, WTF::PairHashTraits<WTF::HashTraits<WebCore::RenderObject const*>, WTF::HashTraits<WebCore::SVGImageCache::ImageData> >, WTF::HashTraits<WebCore::RenderObject const*> >*)+0x5a) [0x7fd7ff3427a2]
4   0x7fd7ff344de6 /home/oszi/WebKit/WebKitBuild/Debug/lib/libQtWebKit.so.4(WTF::HashTableConstIterator<WebCore::RenderObject const*, std::pair<WebCore::RenderObject const*, WebCore::SVGImageCache::ImageData>, WTF::PairFirstExtractor<std::pair<WebCore::RenderObject const*, WebCore::SVGImageCache::ImageData> >, WTF::PtrHash<WebCore::RenderObject const*>, WTF::PairHashTraits<WTF::HashTraits<WebCore::RenderObject const*>, WTF::HashTraits<WebCore::SVGImageCache::ImageData> >, WTF::HashTraits<WebCore::RenderObject const*> >::HashTableConstIterator(WTF::HashTable<WebCore::RenderObject const*, std::pair<WebCore::RenderObject const*, WebCore::SVGImageCache::ImageData>, WTF::PairFirstExtractor<std::pair<WebCore::RenderObject const*, WebCore::SVGImageCache::ImageData> >, WTF::PtrHash<WebCore::RenderObject const*>, WTF::PairHashTraits<WTF::HashTraits<WebCore::RenderObject const*>, WTF::HashTraits<WebCore::SVGImageCache::ImageData> >, WTF::HashTraits<WebCore::RenderObject const*> > const*, std::pair<WebCore::RenderObject const*, WebCore::SVGImageCache::ImageData> const*, std::pair<WebCore::RenderObject const*, WebCore::SVGImageCache::ImageData> const*, WTF::HashItemKnownGoodTag)+0x46) [0x7fd7ff344de6]
5   0x7fd7ff344352 /home/oszi/WebKit/WebKitBuild/Debug/lib/libQtWebKit.so.4(WTF::HashTableIterator<WebCore::RenderObject const*, std::pair<WebCore::RenderObject const*, WebCore::SVGImageCache::ImageData>, WTF::PairFirstExtractor<std::pair<WebCore::RenderObject const*, WebCore::SVGImageCache::ImageData> >, WTF::PtrHash<WebCore::RenderObject const*>, WTF::PairHashTraits<WTF::HashTraits<WebCore::RenderObject const*>, WTF::HashTraits<WebCore::SVGImageCache::ImageData> >, WTF::HashTraits<WebCore::RenderObject const*> >::HashTableIterator(WTF::HashTable<WebCore::RenderObject const*, std::pair<WebCore::RenderObject const*, WebCore::SVGImageCache::ImageData>, WTF::PairFirstExtractor<std::pair<WebCore::RenderObject const*, WebCore::SVGImageCache::ImageData> >, WTF::PtrHash<WebCore::RenderObject const*>, WTF::PairHashTraits<WTF::HashTraits<WebCore::RenderObject const*>, WTF::HashTraits<WebCore::SVGImageCache::ImageData> >, WTF::HashTraits<WebCore::RenderObject const*> >*, std::pair<WebCore::RenderObject const*, WebCore::SVGImageCache::ImageData>*, std::pair<WebCore::RenderObject const*, WebCore::SVGImageCache::ImageData>*, WTF::HashItemKnownGoodTag)+0x3e) [0x7fd7ff344352]
6   0x7fd7ff34335d /home/oszi/WebKit/WebKitBuild/Debug/lib/libQtWebKit.so.4(WTF::HashTable<WebCore::RenderObject const*, std::pair<WebCore::RenderObject const*, WebCore::SVGImageCache::ImageData>, WTF::PairFirstExtractor<std::pair<WebCore::RenderObject const*, WebCore::SVGImageCache::ImageData> >, WTF::PtrHash<WebCore::RenderObject const*>, WTF::PairHashTraits<WTF::HashTraits<WebCore::RenderObject const*>, WTF::HashTraits<WebCore::SVGImageCache::ImageData> >, WTF::HashTraits<WebCore::RenderObject const*> >::makeKnownGoodIterator(std::pair<WebCore::RenderObject const*, WebCore::SVGImageCache::ImageData>*)+0x4f) [0x7fd7ff34335d]
7   0x7fd7ff342455 /home/oszi/WebKit/WebKitBuild/Debug/lib/libQtWebKit.so.4(WTF::HashTable<WebCore::RenderObject const*, std::pair<WebCore::RenderObject const*, WebCore::SVGImageCache::ImageData>, WTF::PairFirstExtractor<std::pair<WebCore::RenderObject const*, WebCore::SVGImageCache::ImageData> >, WTF::PtrHash<WebCore::RenderObject const*>, WTF::PairHashTraits<WTF::HashTraits<WebCore::RenderObject const*>, WTF::HashTraits<WebCore::SVGImageCache::ImageData> >, WTF::HashTraits<WebCore::RenderObject const*> >::end()+0x45) [0x7fd7ff342455]
8   0x7fd7ff341a44 /home/oszi/WebKit/WebKitBuild/Debug/lib/libQtWebKit.so.4(WTF::HashMap<WebCore::RenderObject const*, WebCore::SVGImageCache::ImageData, WTF::PtrHash<WebCore::RenderObject const*>, WTF::HashTraits<WebCore::RenderObject const*>, WTF::HashTraits<WebCore::SVGImageCache::ImageData> >::end()+0x28) [0x7fd7ff341a44]
9   0x7fd7ff340dcc /home/oszi/WebKit/WebKitBuild/Debug/lib/libQtWebKit.so.4(WebCore::SVGImageCache::imageContentChanged()+0x26) [0x7fd7ff340dcc]
10  0x7fd7fed13128 /home/oszi/WebKit/WebKitBuild/Debug/lib/libQtWebKit.so.4(WebCore::CachedImage::changedInRect(WebCore::Image const*, WebCore::IntRect const&)+0x7e) [0x7fd7fed13128]
11  0x7fd7ff33d371 /home/oszi/WebKit/WebKitBuild/Debug/lib/libQtWebKit.so.4(WebCore::SVGImageChromeClient::invalidateContentsAndRootView(WebCore::IntRect const&, bool)+0x79) [0x7fd7ff33d371]
12  0x7fd7fedc1714 /home/oszi/WebKit/WebKitBuild/Debug/lib/libQtWebKit.so.4(WebCore::Chrome::invalidateContentsAndRootView(WebCore::IntRect const&, bool)+0x42) [0x7fd7fedc1714]
13  0x7fd7fef2c9a1 /home/oszi/WebKit/WebKitBuild/Debug/lib/libQtWebKit.so.4(WebCore::ScrollView::repaintContentRectangle(WebCore::IntRect const&, bool)+0x19d) [0x7fd7fef2c9a1]
14  0x7fd7fee24bb9 /home/oszi/WebKit/WebKitBuild/Debug/lib/libQtWebKit.so.4(WebCore::FrameView::doDeferredRepaints()+0x13f) [0x7fd7fee24bb9]
15  0x7fd7fee249c4 /home/oszi/WebKit/WebKitBuild/Debug/lib/libQtWebKit.so.4(WebCore::FrameView::endDeferredRepaints()+0x13e) [0x7fd7fee249c4]
16  0x7fd7fe905bf6 /home/oszi/WebKit/WebKitBuild/Debug/lib/libQtWebKit.so.4(WebCore::Document::recalcStyle(WebCore::Node::StyleChange)+0x5c2) [0x7fd7fe905bf6]
17  0x7fd7fe905de4 /home/oszi/WebKit/WebKitBuild/Debug/lib/libQtWebKit.so.4(WebCore::Document::updateStyleIfNeeded()+0x160) [0x7fd7fe905de4]
18  0x7fd7fed4581a /home/oszi/WebKit/WebKitBuild/Debug/lib/libQtWebKit.so.4(WebCore::FrameLoader::stopLoading(WebCore::UnloadEventPolicy)+0x6ba) [0x7fd7fed4581a]
19  0x7fd7fed45b6d /home/oszi/WebKit/WebKitBuild/Debug/lib/libQtWebKit.so.4(WebCore::FrameLoader::closeURL()+0x67) [0x7fd7fed45b6d]
20  0x7fd7fed50403 /home/oszi/WebKit/WebKitBuild/Debug/lib/libQtWebKit.so.4(WebCore::FrameLoader::detachFromParent()+0x31) [0x7fd7fed50403]
21  0x7fd7fed503cf /home/oszi/WebKit/WebKitBuild/Debug/lib/libQtWebKit.so.4(WebCore::FrameLoader::frameDetached()+0x4d) [0x7fd7fed503cf]
22  0x7fd7ff33d90c /home/oszi/WebKit/WebKitBuild/Debug/lib/libQtWebKit.so.4(WebCore::SVGImage::~SVGImage()+0x64) [0x7fd7ff33d90c]
23  0x7fd7fe2de34c /home/oszi/WebKit/WebKitBuild/Debug/lib/libQtWebKit.so.4(WTF::RefCounted<WebCore::Image>::deref()+0x48) [0x7fd7fe2de34c]
24  0x7fd7fe2ddd34 /home/oszi/WebKit/WebKitBuild/Debug/lib/libQtWebKit.so.4(void WTF::derefIfNotNull<WebCore::Image>(WebCore::Image*)+0x2c) [0x7fd7fe2ddd34]
25  0x7fd7fe2dcec9 /home/oszi/WebKit/WebKitBuild/Debug/lib/libQtWebKit.so.4(WTF::RefPtr<WebCore::Image>::~RefPtr()+0x1b) [0x7fd7fe2dcec9]
26  0x7fd7fed1149c /home/oszi/WebKit/WebKitBuild/Debug/lib/libQtWebKit.so.4(WebCore::CachedImage::~CachedImage()+0xb2) [0x7fd7fed1149c]
27  0x7fd7fed173f7 /home/oszi/WebKit/WebKitBuild/Debug/lib/libQtWebKit.so.4(WebCore::CachedResource::deleteIfPossible()+0x5d) [0x7fd7fed173f7]
28  0x7fd7fed18314 /home/oszi/WebKit/WebKitBuild/Debug/lib/libQtWebKit.so.4(WebCore::CachedResource::unregisterHandle(WebCore::CachedResourceHandleBase*)+0xb4) [0x7fd7fed18314]
29  0x7fd7fe796000 /home/oszi/WebKit/WebKitBuild/Debug/lib/libQtWebKit.so.4(WebCore::CachedResourceHandleBase::~CachedResourceHandleBase()+0x2e) [0x7fd7fe796000]
30  0x7fd7fe8e25a2 /home/oszi/WebKit/WebKitBuild/Debug/lib/libQtWebKit.so.4(WebCore::CachedResourceHandle<WebCore::CachedImage>::~CachedResourceHandle()+0x18) [0x7fd7fe8e25a2]
31  0x7fd7ff1376a3 /home/oszi/WebKit/WebKitBuild/Debug/lib/libQtWebKit.so.4(WebCore::StyleCachedImage::~StyleCachedImage()+0x31) [0x7fd7ff1376a3]
1   0x42ef24 /home/oszi/WebKit/WebKitBuild/Debug/bin/DumpRenderTree() [0x42ef24]
2   0x7fd7f6dcc230 /lib/libc.so.6(+0x32230) [0x7fd7f6dcc230]
3   0x7fd7ffcdebcf /home/oszi/WebKit/WebKitBuild/Debug/lib/libQtWebKit.so.4(WTF::Mutex::lock()+0x4f) [0x7fd7ffcdebcf]
4   0x7fd7fe2a17da /home/oszi/WebKit/WebKitBuild/Debug/lib/libQtWebKit.so.4(WTF::Locker<WTF::Mutex>::Locker(WTF::Mutex&)+0x2a) [0x7fd7fe2a17da]
5   0x7fd7ff3427a2 /home/oszi/WebKit/WebKitBuild/Debug/lib/libQtWebKit.so.4(void WTF::addIterator<WebCore::RenderObject const*, std::pair<WebCore::RenderObject const*, WebCore::SVGImageCache::ImageData>, WTF::PairFirstExtractor<std::pair<WebCore::RenderObject const*, WebCore::SVGImageCache::ImageData> >, WTF::PtrHash<WebCore::RenderObject const*>, WTF::PairHashTraits<WTF::HashTraits<WebCore::RenderObject const*>, WTF::HashTraits<WebCore::SVGImageCache::ImageData> >, WTF::HashTraits<WebCore::RenderObject const*> >(WTF::HashTable<WebCore::RenderObject const*, std::pair<WebCore::RenderObject const*, WebCore::SVGImageCache::ImageData>, WTF::PairFirstExtractor<std::pair<WebCore::RenderObject const*, WebCore::SVGImageCache::ImageData> >, WTF::PtrHash<WebCore::RenderObject const*>, WTF::PairHashTraits<WTF::HashTraits<WebCore::RenderObject const*>, WTF::HashTraits<WebCore::SVGImageCache::ImageData> >, WTF::HashTraits<WebCore::RenderObject const*> > const*, WTF::HashTableConstIterator<WebCore::RenderObject const*, std::pair<WebCore::RenderObject const*, WebCore::SVGImageCache::ImageData>, WTF::PairFirstExtractor<std::pair<WebCore::RenderObject const*, WebCore::SVGImageCache::ImageData> >, WTF::PtrHash<WebCore::RenderObject const*>, WTF::PairHashTraits<WTF::HashTraits<WebCore::RenderObject const*>, WTF::HashTraits<WebCore::SVGImageCache::ImageData> >, WTF::HashTraits<WebCore::RenderObject const*> >*)+0x5a) [0x7fd7ff3427a2]
6   0x7fd7ff344de6 /home/oszi/WebKit/WebKitBuild/Debug/lib/libQtWebKit.so.4(WTF::HashTableConstIterator<WebCore::RenderObject const*, std::pair<WebCore::RenderObject const*, WebCore::SVGImageCache::ImageData>, WTF::PairFirstExtractor<std::pair<WebCore::RenderObject const*, WebCore::SVGImageCache::ImageData> >, WTF::PtrHash<WebCore::RenderObject const*>, WTF::PairHashTraits<WTF::HashTraits<WebCore::RenderObject const*>, WTF::HashTraits<WebCore::SVGImageCache::ImageData> >, WTF::HashTraits<WebCore::RenderObject const*> >::HashTableConstIterator(WTF::HashTable<WebCore::RenderObject const*, std::pair<WebCore::RenderObject const*, WebCore::SVGImageCache::ImageData>, WTF::PairFirstExtractor<std::pair<WebCore::RenderObject const*, WebCore::SVGImageCache::ImageData> >, WTF::PtrHash<WebCore::RenderObject const*>, WTF::PairHashTraits<WTF::HashTraits<WebCore::RenderObject const*>, WTF::HashTraits<WebCore::SVGImageCache::ImageData> >, WTF::HashTraits<WebCore::RenderObject const*> > const*, std::pair<WebCore::RenderObject const*, WebCore::SVGImageCache::ImageData> const*, std::pair<WebCore::RenderObject const*, WebCore::SVGImageCache::ImageData> const*, WTF::HashItemKnownGoodTag)+0x46) [0x7fd7ff344de6]
7   0x7fd7ff344352 /home/oszi/WebKit/WebKitBuild/Debug/lib/libQtWebKit.so.4(WTF::HashTableIterator<WebCore::RenderObject const*, std::pair<WebCore::RenderObject const*, WebCore::SVGImageCache::ImageData>, WTF::PairFirstExtractor<std::pair<WebCore::RenderObject const*, WebCore::SVGImageCache::ImageData> >, WTF::PtrHash<WebCore::RenderObject const*>, WTF::PairHashTraits<WTF::HashTraits<WebCore::RenderObject const*>, WTF::HashTraits<WebCore::SVGImageCache::ImageData> >, WTF::HashTraits<WebCore::RenderObject const*> >::HashTableIterator(WTF::HashTable<WebCore::RenderObject const*, std::pair<WebCore::RenderObject const*, WebCore::SVGImageCache::ImageData>, WTF::PairFirstExtractor<std::pair<WebCore::RenderObject const*, WebCore::SVGImageCache::ImageData> >, WTF::PtrHash<WebCore::RenderObject const*>, WTF::PairHashTraits<WTF::HashTraits<WebCore::RenderObject const*>, WTF::HashTraits<WebCore::SVGImageCache::ImageData> >, WTF::HashTraits<WebCore::RenderObject const*> >*, std::pair<WebCore::RenderObject const*, WebCore::SVGImageCache::ImageData>*, std::pair<WebCore::RenderObject const*, WebCore::SVGImageCache::ImageData>*, WTF::HashItemKnownGoodTag)+0x3e) [0x7fd7ff344352]
8   0x7fd7ff34335d /home/oszi/WebKit/WebKitBuild/Debug/lib/libQtWebKit.so.4(WTF::HashTable<WebCore::RenderObject const*, std::pair<WebCore::RenderObject const*, WebCore::SVGImageCache::ImageData>, WTF::PairFirstExtractor<std::pair<WebCore::RenderObject const*, WebCore::SVGImageCache::ImageData> >, WTF::PtrHash<WebCore::RenderObject const*>, WTF::PairHashTraits<WTF::HashTraits<WebCore::RenderObject const*>, WTF::HashTraits<WebCore::SVGImageCache::ImageData> >, WTF::HashTraits<WebCore::RenderObject const*> >::makeKnownGoodIterator(std::pair<WebCore::RenderObject const*, WebCore::SVGImageCache::ImageData>*)+0x4f) [0x7fd7ff34335d]
9   0x7fd7ff342455 /home/oszi/WebKit/WebKitBuild/Debug/lib/libQtWebKit.so.4(WTF::HashTable<WebCore::RenderObject const*, std::pair<WebCore::RenderObject const*, WebCore::SVGImageCache::ImageData>, WTF::PairFirstExtractor<std::pair<WebCore::RenderObject const*, WebCore::SVGImageCache::ImageData> >, WTF::PtrHash<WebCore::RenderObject const*>, WTF::PairHashTraits<WTF::HashTraits<WebCore::RenderObject const*>, WTF::HashTraits<WebCore::SVGImageCache::ImageData> >, WTF::HashTraits<WebCore::RenderObject const*> >::end()+0x45) [0x7fd7ff342455]
10  0x7fd7ff341a44 /home/oszi/WebKit/WebKitBuild/Debug/lib/libQtWebKit.so.4(WTF::HashMap<WebCore::RenderObject const*, WebCore::SVGImageCache::ImageData, WTF::PtrHash<WebCore::RenderObject const*>, WTF::HashTraits<WebCore::RenderObject const*>, WTF::HashTraits<WebCore::SVGImageCache::ImageData> >::end()+0x28) [0x7fd7ff341a44]
11  0x7fd7ff340dcc /home/oszi/WebKit/WebKitBuild/Debug/lib/libQtWebKit.so.4(WebCore::SVGImageCache::imageContentChanged()+0x26) [0x7fd7ff340dcc]
12  0x7fd7fed13128 /home/oszi/WebKit/WebKitBuild/Debug/lib/libQtWebKit.so.4(WebCore::CachedImage::changedInRect(WebCore::Image const*, WebCore::IntRect const&)+0x7e) [0x7fd7fed13128]
13  0x7fd7ff33d371 /home/oszi/WebKit/WebKitBuild/Debug/lib/libQtWebKit.so.4(WebCore::SVGImageChromeClient::invalidateContentsAndRootView(WebCore::IntRect const&, bool)+0x79) [0x7fd7ff33d371]
14  0x7fd7fedc1714 /home/oszi/WebKit/WebKitBuild/Debug/lib/libQtWebKit.so.4(WebCore::Chrome::invalidateContentsAndRootView(WebCore::IntRect const&, bool)+0x42) [0x7fd7fedc1714]
15  0x7fd7fef2c9a1 /home/oszi/WebKit/WebKitBuild/Debug/lib/libQtWebKit.so.4(WebCore::ScrollView::repaintContentRectangle(WebCore::IntRect const&, bool)+0x19d) [0x7fd7fef2c9a1]
16  0x7fd7fee24bb9 /home/oszi/WebKit/WebKitBuild/Debug/lib/libQtWebKit.so.4(WebCore::FrameView::doDeferredRepaints()+0x13f) [0x7fd7fee24bb9]
17  0x7fd7fee249c4 /home/oszi/WebKit/WebKitBuild/Debug/lib/libQtWebKit.so.4(WebCore::FrameView::endDeferredRepaints()+0x13e) [0x7fd7fee249c4]
18  0x7fd7fe905bf6 /home/oszi/WebKit/WebKitBuild/Debug/lib/libQtWebKit.so.4(WebCore::Document::recalcStyle(WebCore::Node::StyleChange)+0x5c2) [0x7fd7fe905bf6]
19  0x7fd7fe905de4 /home/oszi/WebKit/WebKitBuild/Debug/lib/libQtWebKit.so.4(WebCore::Document::updateStyleIfNeeded()+0x160) [0x7fd7fe905de4]
20  0x7fd7fed4581a /home/oszi/WebKit/WebKitBuild/Debug/lib/libQtWebKit.so.4(WebCore::FrameLoader::stopLoading(WebCore::UnloadEventPolicy)+0x6ba) [0x7fd7fed4581a]
21  0x7fd7fed45b6d /home/oszi/WebKit/WebKitBuild/Debug/lib/libQtWebKit.so.4(WebCore::FrameLoader::closeURL()+0x67) [0x7fd7fed45b6d]
22  0x7fd7fed50403 /home/oszi/WebKit/WebKitBuild/Debug/lib/libQtWebKit.so.4(WebCore::FrameLoader::detachFromParent()+0x31) [0x7fd7fed50403]
23  0x7fd7fed503cf /home/oszi/WebKit/WebKitBuild/Debug/lib/libQtWebKit.so.4(WebCore::FrameLoader::frameDetached()+0x4d) [0x7fd7fed503cf]
24  0x7fd7ff33d90c /home/oszi/WebKit/WebKitBuild/Debug/lib/libQtWebKit.so.4(WebCore::SVGImage::~SVGImage()+0x64) [0x7fd7ff33d90c]
25  0x7fd7fe2de34c /home/oszi/WebKit/WebKitBuild/Debug/lib/libQtWebKit.so.4(WTF::RefCounted<WebCore::Image>::deref()+0x48) [0x7fd7fe2de34c]
26  0x7fd7fe2ddd34 /home/oszi/WebKit/WebKitBuild/Debug/lib/libQtWebKit.so.4(void WTF::derefIfNotNull<WebCore::Image>(WebCore::Image*)+0x2c) [0x7fd7fe2ddd34]
27  0x7fd7fe2dcec9 /home/oszi/WebKit/WebKitBuild/Debug/lib/libQtWebKit.so.4(WTF::RefPtr<WebCore::Image>::~RefPtr()+0x1b) [0x7fd7fe2dcec9]
28  0x7fd7fed1149c /home/oszi/WebKit/WebKitBuild/Debug/lib/libQtWebKit.so.4(WebCore::CachedImage::~CachedImage()+0xb2) [0x7fd7fed1149c]
29  0x7fd7fed173f7 /home/oszi/WebKit/WebKitBuild/Debug/lib/libQtWebKit.so.4(WebCore::CachedResource::deleteIfPossible()+0x5d) [0x7fd7fed173f7]
30  0x7fd7fed18314 /home/oszi/WebKit/WebKitBuild/Debug/lib/libQtWebKit.so.4(WebCore::CachedResource::unregisterHandle(WebCore::CachedResourceHandleBase*)+0xb4) [0x7fd7fed18314]
31  0x7fd7fe796000 /home/oszi/WebKit/WebKitBuild/Debug/lib/libQtWebKit.so.4(WebCore::CachedResourceHandleBase::~CachedResourceHandleBase()+0x2e) [0x7fd7fe796000]
Comment 2 Csaba Osztrogonác 2012-02-07 13:17:24 PST 
Why did you removed bug77736 from the block list without any comment?
This is a regression caused by bug77736, so this bug blocks 77736.
Comment 3 Rafael Brandao 2012-02-07 13:23:32 PST 
I've seen a similar assertion failure in a recent bug I've worked on and it was a dangling pointer left between test cases (this is why it worked fine outside the test scope)... not sure if this is the case for WK1, but checking the life cycle of whoever is involved here might be helpful (and the return of WTF::Mutex::lock() as it may indicate the object has been deleted).
Comment 4 Csaba Osztrogonác 2012-02-07 14:05:18 PST 
I tried to skip this test locally, but then the following tests started to crash. Skipping the test before it didn't hide the crash, but skipping two tests before it "solved" the crash:
svg/zoom/page/zoom-background-images.html 
svg/zoom/page/zoom-coords-viewattr-01-b.svg 

So I skipped them to make the bot green to be able to catch new regressions - http://trac.webkit.org/changeset/106989

Please unskip them with the proper fix.
Comment 5 Nikolas Zimmermann 2012-02-08 01:25:58 PST 
Created attachment 126025 [details]
Speculative fix
Comment 6 Nikolas Zimmermann 2012-02-08 01:26:30 PST 
(In reply to comment #2)
> Why did you removed bug77736 from the block list without any comment?
> This is a regression caused by bug77736, so this bug blocks 77736.
Did I do this? I hope not.

The stack traces are obvious, speculative fix coming.
Comment 7 Csaba Osztrogonác 2012-02-08 02:00:50 PST 
Comment on attachment 126025 [details]
Speculative fix

r=me, thanks for the fix. I tested it on Qt5-WK1 and works fine.
Comment 8 Csaba Osztrogonác 2012-02-08 02:43:06 PST 
Comment on attachment 126025 [details]
Speculative fix

Clearing flags on attachment: 126025

Committed r107059: <http://trac.webkit.org/changeset/107059>
Comment 9 Csaba Osztrogonác 2012-02-08 02:43:15 PST 
All reviewed patches have been landed.  Closing bug.