Internet Explorer 9 Silverlight 4内存泄漏
题
我们正在将视频从ASHX实现了Ihttpasynchandler到我们的Silverlight客户端。
在客户端上,Async处理程序正在使用MediaStreamSource的实现。
所有在最新的Firefox,Chrome和Internet Explorer 8中运行正常。
但在Internet Explorer中,我们看到内存泄漏。我一直在使用umdh来调试内存,并找到了一个在转储内存之间使用127MB的CallStack。所以我想我已经把它缩小到这个Callstack。
但现在我现在不知道继续我的调试。这是UMDH信息:
首先比较第一次运行和第二个
+ 117440512 ( 134217712 - 16777200) 1 allocs BackTrace121282BC
+ 0 ( 1 - 1) BackTrace121282BC allocations
ntdll!RtlAllocateHeap+00000274
npctrl!???+00000000 : 56FE1A65
npctrl!DllCanUnloadNow+000157F0
npctrl!???+00000000 : 56FF477E
npctrl!???+00000000 : 56FF48D5
urlmon!CBSCHolder::OnDataAvailable+0000003A
urlmon!CBinding::CallOnDataAvailable+0000002B
urlmon!CBinding::OnDataNotification+000000D7
urlmon!CBinding::OnTransNotification+000001DB
urlmon!CBinding::ReportData+00000085
urlmon!COInetProt::ReportData+0000006E
mscorie!CorFltr::ReportData+0000002B
urlmon!CTransaction::DispatchReport+0000037A
urlmon!CTransaction::OnINetCallback+000000DB
urlmon!TransactionWndProc+00000028
USER32!InternalCallWinProc+00000023
USER32!UserCallWinProcCheckWow+00000109
USER32!DispatchMessageWorker+000003BC
USER32!DispatchMessageW+0000000F
IEFRAME!CTabWindow::_TabWindowThreadProc+00000722
IEFRAME!LCIETab_ThreadProc+00000317
iertutil!CIsoScope::RegisterThread+000000AB
IEFRAME!Detour_DefWindowProcA+0000006C
kernel32!BaseThreadInitThunk+0000000E
ntdll!__RtlUserThreadStart+00000070
ntdll!_RtlUserThreadStart+0000001B
.
第二运行callstack
+ 7fffff0 ( 7fffff0 - 0) 1 allocs BackTrace121282BC
+ 1 ( 1 - 0) BackTrace121282BC allocations
ntdll!RtlAllocateHeap+00000274
npctrl!???+00000000 : 56FE1A65
npctrl!DllCanUnloadNow+000157F0
npctrl!???+00000000 : 56FF477E
npctrl!???+00000000 : 56FF48D5
urlmon!CBSCHolder::OnDataAvailable+0000003A
urlmon!CBinding::CallOnDataAvailable+0000002B
urlmon!CBinding::OnDataNotification+000000D7
urlmon!CBinding::OnTransNotification+000001DB
urlmon!CBinding::ReportData+00000085
urlmon!COInetProt::ReportData+0000006E
mscorie!CorFltr::ReportData+0000002B
urlmon!CTransaction::DispatchReport+0000037A
urlmon!CTransaction::OnINetCallback+000000DB
urlmon!TransactionWndProc+00000028
USER32!InternalCallWinProc+00000023
USER32!UserCallWinProcCheckWow+00000109
USER32!DispatchMessageWorker+000003BC
USER32!DispatchMessageW+0000000F
IEFRAME!CTabWindow::_TabWindowThreadProc+00000722
IEFRAME!LCIETab_ThreadProc+00000317
iertutil!CIsoScope::RegisterThread+000000AB
IEFRAME!Detour_DefWindowProcA+0000006C
kernel32!BaseThreadInitThunk+0000000E
ntdll!__RtlUserThreadStart+00000070
ntdll!_RtlUserThreadStart+0000001B
. 解决方案
Have you already solved your problem?
Have you checked SL memory debugging tips such as:
http://www.dllshepherd.net/2011/02/silverlight-memory-leak-part-2.html
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