Rick just landed (on the trunk) a re-write of the proxy object code to
prevent some crashing. I haven't looked at the code, but it's quite
possible that monitors/locks were re-worked in the process and may have
a positive impact here.
The socket transport thread shows up here too (no suprise).... could be
some bad interraction there.
Jud
Ed Burns wrote:
>Ed Burns <[EMAIL PROTECTED]> writes:
>
>>Ed Burns <[EMAIL PROTECTED]> writes:
>>
>>>Grr. Lamentably, incorporating these calls in my event loop in the same
>>>manner as used in winEmbed did not fix the problem.
>>>
>>>This time the last event processed by the msg queue is 0xC16F. Any ideas?
>>>
>>I modified prmon.c to print out a message on monitor enter and exit like
>>this:
>>
>> fprintf(msgFile, "Enter Monitor: %p\n", mon);
>> fflush(msgFile);
>>
>
>I have refined the test data some more, writing a perl program to take
>the monitor exit and enter output data and print out only the cases
>where numEnters != numExits.
>
>I ran the program in the debugger until it froze and collected the data,
>along with the stack traces on the threads mentioned in the data. I did
>this twice.
>
>Hypothesis: I believe that deadlock is occurring and I have a hunch that
>there are some valuable clues in the data below. Can someone please
>look at the stack traces and see if they can spot the deadlock? Is this
>the right forum for this kind of information? I'm really stuck here.
>My MO is to collect enough information for someone who is an expert to
>gain insight.
>
>CASE 1
>------
>
>Enter Monitor: 056BBD70: 229949.
>Exit Monitor: 056BBD70: 229945.
>Enter Monitor: 08AFFA80: 14.
>Exit Monitor: 08AFFA80: 12.
>
>Thread A
>========
>
>PR_EnterMonitor(PRMonitor * 0x056bbd70) line 87 + 14 bytes
>util_PostEvent(WebShellInitContext * 0x051d53d0, PLEvent * 0x08ae7404) line 49 + 21
>bytes
>Java_org_mozilla_webclient_wrapper_1native_NavigationImpl_nativeStop(JNIEnv_ *
>0x0086faa0, _jobject * 0x070dfebc, long 85808080) line 295 + 13 bytes
>
>Thread B
>========
>
>PR_EnterMonitor(PRMonitor * 0x08affa80) line 87 + 14 bytes
>nsAutoMonitor::nsAutoMonitor(PRMonitor * 0x08affa80) line 184 + 13 bytes
>nsSocketTransport::Dispatch(nsSocketRequest * 0x08aff790) line 1288
>nsSocketRequest::Cancel(nsSocketRequest * const 0x08aff790, unsigned int 2152398850)
>line 2527
>nsHttpConnection::OnTransactionComplete(unsigned int 2152398850) line 247
>nsHttpTransaction::Cancel(nsHttpTransaction * const 0x08afadd0, unsigned int
>2152398850) line 598
>nsHttpChannel::Cancel(nsHttpChannel * const 0x08afccb0, unsigned int 2152398850) line
>1563
>nsLoadGroup::Cancel(nsLoadGroup * const 0x063765b0, unsigned int 2152398850) line 239
>+ 16 bytes
>nsDocLoaderImpl::Stop(nsDocLoaderImpl * const 0x06376620) line 278 + 31 bytes
>nsURILoader::Stop(nsURILoader * const 0x06376e40, nsISupports * 0x06376638) line 536
>+ 23 bytes
>nsDocShell::Stop(nsDocShell * const 0x06376e90) line 2211
>wsStopEvent::handleEvent() line 355 + 18 bytes
>handleEvent(PLEvent * 0x08aff844) line 48 + 11 bytes
>PL_HandleEvent(PLEvent * 0x08aff844) line 590 + 10 bytes
>processEventLoop(WebShellInitContext * 0x051d53d0) line 439 + 9 bytes
>Java_org_mozilla_webclient_wrapper_1native_NativeEventThread_nativeProcessEvents(JNIEnv_
> * 0x0083e840, _jobject * 0x0544febc, long 85808080) line 242 + 9 bytes
>
>Thread C
>========
>
>PR_EnterMonitor(PRMonitor * 0x056bbd70) line 87 + 14 bytes
>PL_PostEvent(PLEventQueue * 0x056bb740, PLEvent * 0x051d5eac) line 251 + 10 bytes
>nsEventQueueImpl::PostEvent(nsEventQueueImpl * const 0x056bb1a0, PLEvent *
>0x051d5eac) line 251 + 16 bytes
>nsMemoryImpl::FlushMemory(const unsigned short * 0x05141db4, int 0) line 432 + 30
>bytes
>MemoryFlusher::Run(MemoryFlusher * const 0x051d6d60) line 177 + 43 bytes
>nsThread::Main(void * 0x051d6bb0) line 105 + 26 bytes
>_PR_NativeRunThread(void * 0x051d6990) line 399 + 13 bytes
>_threadstartex(void * 0x051d67e0) line 212 + 13 bytes
>
>Thread D
>========
>
>PR_EnterMonitor(PRMonitor * 0x056bbd70) line 87 + 14 bytes
>PL_PostEvent(PLEventQueue * 0x056bb740, PLEvent * 0x08aff324) line 251 + 10 bytes
>nsEventQueueImpl::PostEvent(nsEventQueueImpl * const 0x056bb1a0, PLEvent *
>0x08aff324) line 251 + 16 bytes
>nsRequestObserverProxy::FireEvent(nsARequestObserverEvent * 0x08aff320) line 244 + 35
>bytes
>nsRequestObserverProxy::OnStartRequest(nsRequestObserverProxy * const 0x08afb630,
>nsIRequest * 0x08afadd0, nsISupports * 0x00000000) line 185 + 12 bytes
>nsStreamListenerProxy::OnStartRequest(nsStreamListenerProxy * const 0x08afcee0,
>nsIRequest * 0x08afadd0, nsISupports * 0x00000000) line 224
>nsHttpTransaction::HandleContent(char * 0x07a90b88, unsigned int 0, unsigned int *
>0x05cbfdc8) line 466 + 41 bytes
>nsHttpTransaction::Read(nsHttpTransaction * const 0x08afadd4, char * 0x07a90b88,
>unsigned int 0, unsigned int * 0x05cbfdc8) line 709 + 23 bytes
>nsReadFromInputStream(nsIOutputStream * 0x08afb5c4, void * 0x08afadd4, char *
>0x07a90b88, unsigned int 0, unsigned int 4096, unsigned int * 0x05cbfdc8) line 831
>nsPipe::nsPipeOutputStream::WriteSegments(nsPipe::nsPipeOutputStream * const
>0x08afb5c4, unsigned int (nsIOutputStream *, void *, char *, unsigned int, unsigned
>int, unsigned int *)* 0x050b5530 nsReadFromInputStream(nsIOutputStream *, void *,
>char *, unsigned int, unsigned int, unsigned int *), void * 0x08afadd4, unsigned int
>16384, unsigned int * 0x05cbfe5c) line 704 + 29 bytes
>nsPipe::nsPipeOutputStream::WriteFrom(nsPipe::nsPipeOutputStream * const 0x08afb5c4,
>nsIInputStream * 0x08afadd4, unsigned int 16384, unsigned int * 0x05cbfe5c) line 839
>nsStreamListenerProxy::OnDataAvailable(nsStreamListenerProxy * const 0x08afcee0,
>nsIRequest * 0x08afadd0, nsISupports * 0x00000000, nsIInputStream * 0x08afadd4,
>unsigned int 0, unsigned int 16384) line 283 + 38 bytes
>nsHttpTransaction::OnDataReadable(nsIInputStream * 0x08afc3b0) line 214 + 72 bytes
>nsHttpConnection::OnDataAvailable(nsHttpConnection * const 0x08afaa10, nsIRequest *
>0x08aff790, nsISupports * 0x00000000, nsIInputStream * 0x08afc3b0, unsigned int 0,
>unsigned int 8192) line 631 + 15 bytes
>nsSocketReadRequest::OnRead() line 2670 + 57 bytes
>nsSocketTransport::doReadWrite(short 1) line 991 + 14 bytes
>nsSocketTransport::Process(short 1) line 477 + 13 bytes
>nsSocketTransportService::Run(nsSocketTransportService * const 0x056b9fb4) line 419 +
>13 bytes
>nsThread::Main(void * 0x056bd950) line 105 + 26 bytes
>_PR_NativeRunThread(void * 0x056bd730) line 399 + 13 bytes
>_threadstartex(void * 0x056bd580) line 212 + 13 bytes
>
>---------------------------------------------------------------------------
>
>CASE 2
>------
>
>Enter Monitor: 056BBD70: 5828.
>Exit Monitor: 056BBD70: 5825.
>Enter Monitor: 063EA6B0: 6.
>Exit Monitor: 063EA6B0: 3.
>
>Thread A
>========
>
>PR_EnterMonitor(PRMonitor * 0x056bbd70) line 87 + 14 bytes
>util_PostEvent(WebShellInitContext * 0x051d53d0, PLEvent * 0x063ebe64) line 49 + 21
>bytes
>Java_org_mozilla_webclient_wrapper_1native_NavigationImpl_nativeStop(JNIEnv_ *
>0x0086f4c0, _jobject * 0x0705fe98, long 85808080) line 295 + 13 bytes
>
>Thread B
>========
>
>PR_EnterMonitor(PRMonitor * 0x056bbd70) line 87 + 14 bytes
>PL_PostEvent(PLEventQueue * 0x056bb740, PLEvent * 0x063ea180) line 251 + 10 bytes
>nsEventQueueImpl::PostEvent(nsEventQueueImpl * const 0x056bb1a0, PLEvent *
>0x063ea180) line 251 + 16 bytes
>nsProxyObject::Post(unsigned int 4, nsXPTMethodInfo * 0x06dc2d6c, nsXPTCMiniVariant *
>0x05cbfd4c, nsIInterfaceInfo * 0x05296c10) line 470
>nsProxyEventObject::CallMethod(nsProxyEventObject * const 0x063ea940, unsigned short
>4, const nsXPTMethodInfo * 0x06dc2d6c, nsXPTCMiniVariant * 0x05cbfd4c) line 463 + 52
>bytes
>PrepareAndDispatch(nsXPTCStubBase * 0x063ea940, unsigned int 4, unsigned int *
>0x05cbfdfc, unsigned int * 0x05cbfdec) line 100 + 31 bytes
>SharedStub() line 124
>nsHttpConnection::OnStatus(nsHttpConnection * const 0x063eaf48, nsIRequest *
>0x063ea470, nsISupports * 0x063eaf40, unsigned int 2152398851, const unsigned short *
>0x05cbfe50) line 666
>nsSocketTransport::OnStatus(nsSocketRequest * 0x063ea470, nsISupports * 0x063eaf40,
>unsigned int 2152398851) line 1772 + 63 bytes
>nsSocketTransport::OnStatus(unsigned int 2152398851) line 1787
>nsSocketTransport::Process(short 0) line 462
>nsSocketTransportService::ProcessWorkQ() line 243 + 10 bytes
>nsSocketTransportService::Run(nsSocketTransportService * const 0x056b9fb4) line 446 +
>11 bytes
>nsThread::Main(void * 0x056bd950) line 105 + 26 bytes
>_PR_NativeRunThread(void * 0x056bd730) line 399 + 13 bytes
>_threadstartex(void * 0x056bd580) line 212 + 13 bytes
>
>Thread C
>========
>
>PR_EnterMonitor(PRMonitor * 0x063ea6b0) line 87 + 14 bytes
>nsAutoMonitor::nsAutoMonitor(PRMonitor * 0x063ea6b0) line 184 + 13 bytes
>nsSocketTransport::OnFound(nsSocketTransport * const 0x063ea804, nsISupports *
>0x00000000, const char * 0x063ea350, nsHostEnt * 0x06db8e74) line 1337
>nsDNSRequest::FireStop(unsigned int 0) line 271 + 62 bytes
>nsDNSLookup::CompleteLookup(unsigned int 0) line 702 + 18 bytes
>nsDNSService::ProcessLookup(HWND__ * 0x005502d8, unsigned int 1024, unsigned int 1,
>long 64) line 849 + 22 bytes
>nsDNSEventProc(HWND__ * 0x005502d8, unsigned int 1024, unsigned int 1, long 64) line
>869 + 27 bytes
>
>Thread D
>========
>
>PR_EnterMonitor(PRMonitor * 0x063ea6b0) line 87 + 14 bytes
>nsAutoMonitor::nsAutoMonitor(PRMonitor * 0x063ea6b0) line 184 + 13 bytes
>nsSocketTransport::AsyncRead(nsSocketTransport * const 0x063ea800, nsIStreamListener
>* 0x063eaf40, nsISupports * 0x00000000, unsigned int 0, unsigned int 4294967295,
>unsigned int 3, nsIRequest * * 0x063eaf60) line 1420
>nsHttpConnection::ActivateConnection() line 382 + 65 bytes
>nsHttpConnection::SetTransaction(nsHttpTransaction * 0x063e9300) line 154 + 8 bytes
>nsHttpHandler::InitiateTransaction(nsHttpTransaction * 0x063e9300,
>nsHttpConnectionInfo * 0x063e7110, int 0) line 387 + 12 bytes
>nsHttpChannel::Connect(int 1) line 242
>nsHttpChannel::AsyncOpen(nsHttpChannel * const 0x063e71c0, nsIStreamListener *
>0x063e8d80, nsISupports * 0x00000000) line 1802 + 10 bytes
>nsDocumentOpenInfo::Open(nsIChannel * 0x063e71c0, int 0, nsISupports * 0x06376e80)
>line 184 + 18 bytes
>nsURILoader::OpenURIVia(nsURILoader * const 0x06376e40, nsIChannel * 0x063e71c0, int
>0, nsISupports * 0x06376e80, unsigned int 0) line 521 + 20 bytes
>nsURILoader::OpenURI(nsURILoader * const 0x06376e40, nsIChannel * 0x063e71c0, int 0,
>nsISupports * 0x06376e80) line 483
>nsDocShell::DoChannelLoad(nsIChannel * 0x063e71c0, int 0, nsIURILoader * 0x06376e40)
>line 4667 + 24 bytes
>nsDocShell::DoURILoad(nsIURI * 0x063e5ba0, nsIURI * 0x00000000, nsISupports *
>0x00000000, int 0, nsIInputStream * 0x00000000, nsIInputStream * 0x00000000) line
>4456 + 36 bytes
>nsDocShell::InternalLoad(nsDocShell * const 0x06376e80, nsIURI * 0x063e5ba0, nsIURI *
>0x00000000, nsISupports * 0x00000000, int 1, int 0, const unsigned short *
>0x0544fab4, nsIInputStream * 0x00000000, nsIInputStream * 0x00000000, unsigned int 1,
>nsISHEntry * 0x00000000) line 4275 + 43 bytes
>nsDocShell::LoadURI(nsDocShell * const 0x06376e80, nsIURI * 0x063e5ba0,
>nsIDocShellLoadInfo * 0x00000000, unsigned int 0) line 559 + 72 bytes
>nsDocShell::LoadURI(nsDocShell * const 0x06376e90, const unsigned short * 0x063e1d60,
>unsigned int 0) line 2161 + 31 bytes
>wsLoadURLEvent::handleEvent() line 70 + 33 bytes
>handleEvent(PLEvent * 0x063e1f84) line 48 + 11 bytes
>PL_HandleEvent(PLEvent * 0x063e1f84) line 590 + 10 bytes
>processEventLoop(WebShellInitContext * 0x051d53d0) line 439 + 9 bytes
>Java_org_mozilla_webclient_wrapper_1native_NativeEventThread_nativeProcessEvents(JNIEnv_
> * 0x0083e840, _jobject * 0x0544febc, long 85808080) line 242 + 9 bytes
>
>
