[webkit-qt] qtwebkit qt-4.8.2 crashes in qws embedded environment

[Alexandr Zvezdin]

hi everyone.
 I use qtwebkit from qt-4.8.2 in mips embedded qws environment. I also use
qt plugin system. There is a main app with -lqtwebkit and dynamicaly loaded
plugins with qwebviews. I have strange chrashes sometimes on loading and
unloading plugins. Gdb shows
#12 <signal handler called>
#13 0x2c4c9074 in SLL_Next (t=0x0)
    at
qt-everywhere-opensource-src-4.8.2/src/3rdparty/webkit/Source/JavaScriptCore/wtf/FastMalloc.cpp:760
#14 0x2c4c922c in SLL_PopRange (head=0x3bfa0274, N=32, start=0x7f8a0f18,
end=0x7f8a0f14)
    at
qt-everywhere-opensource-src-4.8.2/src/3rdparty/webkit/Source/JavaScriptCore/wtf/FastMalloc.cpp:792
#15 0x2c4d00c8 in WTF::TCMalloc_ThreadCache_FreeList::PopRange
(this=0x3bfa0274, N=32, start=0x7f8a0f18, end=0x7f8a0f14)
    at
qt-everywhere-opensource-src-4.8.2/src/3rdparty/webkit/Source/JavaScriptCore/wtf/FastMalloc.cpp:2204
#16 0x2c4d203c in WTF::TCMalloc_ThreadCache::ReleaseToCentralCache
(this=0x3bfa0240, cl=5, N=64)
    at
qt-everywhere-opensource-src-4.8.2/src/3rdparty/webkit/Source/JavaScriptCore/wtf/FastMalloc.cpp:2932
#17 0x2c4d21e8 in WTF::TCMalloc_ThreadCache::Scavenge (this=0x3bfa0240)
    at
qt-everywhere-opensource-src-4.8.2/src/3rdparty/webkit/Source/JavaScriptCore/wtf/FastMalloc.cpp:2956
#18 0x2c4d2388 in WTF::TCMalloc_ThreadCache::Deallocate (this=0x3bfa0240,
ptr=0x405fd000, cl=47)
    at
qt-everywhere-opensource-src-4.8.2/src/3rdparty/webkit/Source/JavaScriptCore/wtf/FastMalloc.cpp:2908
#19 0x2c4cd340 in WTF::fastFree (ptr=0x405fd000)
    at
qt-everywhere-opensource-src-4.8.2/src/3rdparty/webkit/Source/JavaScriptCore/wtf/FastMalloc.cpp:3661
#20 0x2bc94a34 in freeSegment (p=0x405fd000 "")
    at
qt-everywhere-opensource-src-4.8.2/src/3rdparty/webkit/Source/WebCore/platform/SharedBuffer.cpp:57
#21 0x2bc94e58 in WebCore::SharedBuffer::buffer (this=0x4054ade8)
    at
qt-everywhere-opensource-src-4.8.2/src/3rdparty/webkit/Source/WebCore/platform/SharedBuffer.cpp:209
#22 0x2bc94fb4 in WebCore::SharedBuffer::data (this=0x4054ade8)
    at
qt-everywhere-opensource-src-4.8.2/src/3rdparty/webkit/Source/WebCore/platform/SharedBuffer.cpp:117

Do you have any ideas how to deal with it?

On qt-4.7.0 I have no problems with it.
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