O Internet Explorer 9 Silverlight 4 de vazamento de memória

Question

Estamos streaming de vídeo a partir de um ashx execução IHttpAsyncHandler para nosso cliente do Silverlight.

No clientside assíncrona manipulador está ficando uso em uma implementação de MediaStreamSource.

Tudo corre bem, no mais recente do Firefox, chrome e também no Internet Explorer 8.

Mas no Internet Explorer 9, podemos ver um vazamento de memória.Tenho vindo a utilizar o umdh para depurar a memória e encontrou uma pilha de chamadas que usado 127mb entre a despejos de memória.Então, eu acho que eu tenho reduzi-lo a esta pilha de chamadas.

Mas agora eu não sei se agora para continuar com a minha depuração.Aqui é o umdh informações:

Primeiro, a comparação entre executar primeiro e segundo

+ 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

A segunda rodada de pilha de chamadas

+ 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

Answer 1

Você já resolveu seu problema?

Você já verificou SL memória dicas de depuração, tais como:

http://radheyv.blogspot.cz/2011/04/detecting-memory-leaks-in-silverlight.html#!/2011/04/detecting-memory-leaks-in-silverlight.html

http://blogs.msdn.com/b/slperf/archive/2010/08/19/analyzing-silverlight-memory-usage-part-1-obtaining-measurements.aspx

http://dllshepherdnotes.blogspot.cz/2011/02/silverlight-memory-leak-part-4.html#!/2011/02/silverlight-memory-leak-part-4.html

http://www.dllshepherd.net/2011/02/silverlight-memory-leak-part-2.html