[omniORB] OMNIORB_ASSERT(num_active_oas == 0);
with omniORB 4.1.2 and 4.1.4
Martin B.
0xCDCDCDCD at gmx.at
Mon Jan 10 12:40:00 GMT 2011
Hi all, Hi Duncan,
Today I got OMNIORB_ASSERT(num_active_oas == 0) for the 3rd time within
one week on my development machine. Sadly logging isn't upped, but at
least I have configured VS to immediately stop at any
omniORB::fatalException ... so I'll try to give as much details as possible:
* Last week it happened with 4.1.2 but I'm now using 4.1.4
* Debug Build with Visual C++ 2005
* Pre-Built Binaries omniORB414_vc8_rtd.dll
* Windows XP sp3
* local connection
* Multithreaded MFC GUI app.
* ORB_init and shutdown(true) are called from the main (=GUI) thread
* The ORB::run() function is called from a separate thread (not the main
thread)
The error occurs during ORB shutdown which is initiated by the main
(GUI) thread which is the same thread that also called ORB_init.
All CORBA connections are already terminated during shutdown (that is,
the only client I had connected was already disconnected several seconds
before ORB shutdown is called.
objectadapter.cc : 509 - OMNIORB_ASSERT(num_active_oas == 0);
Find all omniORB related threads+callstacks at the end!
My observations:
* I call shutdown(true) from the main thread (#380), while the run()
function is running from a separate thread (#2588)
* There seem to be several worker threads: omniAsyncWorker::run : #3068,
#1372, #456, #4608
* Thread #5840 shows the destruction of one of the POAs I used. (Which
is correct, as I shut down this POA by calling destroy(true, false)
+ Note that there should've been 2 POAs involved in this test run:
the omniINS POA, and a newly created POA that used the RootPOA a parent.
+ Inspecting the POA object under destruction confirms it's the POA I
created and not the INS POA.
* From the state my process is in at the moment, it is clear the the
ASSERT is triggered when:
+ omniObjAdapter::shutdown() (called from
omniOrbORB::actual_shutdown()) is holding the lock sync(oa_lock) and the
POA shutdown thread #5840 is waiting for this lock to shut down the POA.
* What is weird is that omniOrbPOA::shutdown() (in
omniOrbORB::actual_shutdown()) should have waited for all object
adapters to shut down, but apparently this did not work.
* Maybe it's a similar timing problem to the one I asked about in my
mail from 05.01.2011 ->
http://www.omniorb-support.com/pipermail/omniorb-list/2011-January/030868.html
Note that my shutdown sequence (in thread 380) goes like this:
1) deactivate_object(..) of my main object in the omniINS POA
2) PortableServer::POAManager_var pman = other_poa->the_POAManager();
pman->deactivate(true, /*wait=*/false);
other_poa->destroy(true, /*wait=*/false);
other_poa = PortableServer::POA::_nil();
the_orb->shutdown(true); <<< assert is triggered here
The other_poa POA was created with these options:
root_poa->create_lifespan_policy(TRANSIENT);
root_poa->create_id_assignment_policy(SYSTEM_ID);
root_poa->create_id_uniqueness_policy(UNIQUE_ID);
root_poa->create_implicit_activation_policy(IMPLICIT_ACTIVATION); //
!= default
root_poa-> create_request_processing_policy(USE_ACTIVE_OBJECT_MAP_ONLY);
root_poa->create_servant_retention_policy(RETAIN);
root_poa->create_thread_policy(ORB_CTRL_MODEL);
***
Since this is pretty non-reproducible (read: I started and stopped the
app under the debugger dozens and dozens of times during the last week)
it would be great if I could get some tips how to influence omniORBs
timing behaviour to repro this behaviour.
***
cheers,
Martin
Calls stack follow for reference:
# 380 wWinMainCRTStartup _CxxThrowException Normal 0
- - - - -
omniORB414_vc8_rtd.dll!omni::assertFail(const char * file=0x67c809dc,
int line=509, const char * expr=0x67c809c8) Line 1300 + 0x46 bytes C++
omniORB414_vc8_rtd.dll!omni::omniObjAdapter::shutdown() Line 509 +
0x1d bytes C++
omniORB414_vc8_rtd.dll!omniOrbORB::actual_shutdown() Line 1020 C++
omniORB414_vc8_rtd.dll!omniOrbORB::do_shutdown(bool
wait_for_completion=true) Line 1078 C++
omniORB414_vc8_rtd.dll!omniOrbORB::shutdown(bool
wait_for_completion=true) Line 871 C++
my.dll!ShutdownDmORB() Line 214 C++
my.dll!StopDatamanager() Line 2477 + 0xd bytes C++
my.exe!CMainFrame::OnClose() Line 856 C++
mfc80ud.dll!CWnd::OnWndMsg(unsigned int message=16, unsigned int
wParam=0, long lParam=0, long * pResult=0x0013ee14) Line 2028 C++
...
mfc80ud.dll!CWinThread::PumpMessage() Line 896 C++
mfc80ud.dll!CWinThread::Run() Line 625 + 0xd bytes C++
mfc80ud.dll!CWinApp::Run() Line 894 C++
mfc80ud.dll!AfxWinMain(HINSTANCE__ * hInstance=0x00400000, HINSTANCE__ *
hPrevInstance=0x00000000, wchar_t * lpCmdLine=0x00020d8e, int
nCmdShow=1) Line 47 + 0xd bytes C++
my.exe!wWinMain(HINSTANCE__ * hInstance=0x00400000, HINSTANCE__ *
hPrevInstance=0x00000000, wchar_t * lpCmdLine=0x00020d8e, int
nCmdShow=1) Line 33 C++
my.exe!__tmainCRTStartup() Line 589 + 0x35 bytes C
my.exe!wWinMainCRTStartup() Line 414 C
kernel32.dll!_BaseProcessStart at 4() + 0x23 bytes
- - - - -
# 2588 _threadstartex omni_condition::wait Normal 0
- - - - -
omnithread34_vc8_rtd.dll!omni_condition::wait() Line 187 + 0x16 bytes C++
omniORB414_vc8_rtd.dll!omniOrbORB::run() Line 823 + 0x16 bytes C++
my.dll!run_thread_fn(void * param=0x02e991b8) Line 315 + 0x23 bytes C++
msvcr80d.dll!_callthreadstartex() Line 348 + 0xf bytes C
- - - - -
# 3068 _threadstartex omni::SocketCollection::Select Normal 0
- - - - -
omniORB414_vc8_rtd.dll!omni::SocketCollection::Select() Line 929 +
0x19 bytes C++
omniORB414_vc8_rtd.dll!omni::tcpEndpoint::AcceptAndMonitor(void (void *,
omni::giopConnection *)* func=0x67b64f02, void * cookie=0x02ea22e0)
Line 721 + 0xb bytes C++
omniORB414_vc8_rtd.dll!omni::giopRendezvouser::execute() Line 96 +
0x1e bytes C++
omniORB414_vc8_rtd.dll!omniAsyncWorker::real_run() Line 236 + 0x14
bytes C++
omniORB414_vc8_rtd.dll!omniAsyncWorkerInfo::run() Line 285 C++
omniORB414_vc8_rtd.dll!omniAsyncWorker::run(void * __formal=0x00000000)
Line 164 C++
omnithread34_vc8_rtd.dll!omni_thread_wrapper(void * ptr=0x02ea2338)
Line 502 + 0x16 bytes C++
msvcr80d.dll!_callthreadstartex() Line 348 + 0xf bytes C
- - - - -
# 1372 _threadstartex omni_condition::timedwait Normal 0
- - - - -
omnithread34_vc8_rtd.dll!omni_condition::timedwait(unsigned long
abs_sec=1294654111, unsigned long abs_nsec=322000000) Line 230 + 0x18
bytes C++
omniORB414_vc8_rtd.dll!omni::Scavenger::execute() Line 736 + 0x16 bytes C++
omniORB414_vc8_rtd.dll!omniAsyncWorker::real_run() Line 236 + 0x14
bytes C++
omniORB414_vc8_rtd.dll!omniAsyncWorkerInfo::run() Line 285 C++
omniORB414_vc8_rtd.dll!omniAsyncWorker::run(void * __formal=0x00000000)
Line 164 C++
omnithread34_vc8_rtd.dll!omni_thread_wrapper(void * ptr=0x0a0f6df0)
Line 502 + 0x16 bytes C++
msvcr80d.dll!_callthreadstartex() Line 348 + 0xf bytes C
- - - - -
# 456 _threadstartex omni_condition::timedwait Normal 0
- - - - -
omnithread34_vc8_rtd.dll!omni_condition::timedwait(unsigned long
abs_sec=1294654115, unsigned long abs_nsec=760000000) Line 230 + 0x18
bytes C++
omniORB414_vc8_rtd.dll!omniAsyncWorker::real_run() Line 197 + 0x16
bytes C++
omniORB414_vc8_rtd.dll!omniAsyncWorkerInfo::run() Line 285 C++
omniORB414_vc8_rtd.dll!omniAsyncWorker::run(void * __formal=0x00000000)
Line 164 C++
omnithread34_vc8_rtd.dll!omni_thread_wrapper(void * ptr=0x0b62c468)
Line 502 + 0x16 bytes C++
msvcr80d.dll!_callthreadstartex() Line 348 + 0xf bytes C
- - - - -
# 4608 _threadstartex omni_condition::timedwait Normal 0
- - - - -
omnithread34_vc8_rtd.dll!omni_condition::timedwait(unsigned long
abs_sec=1294654115, unsigned long abs_nsec=760000000) Line 230 + 0x18
bytes C++
omniORB414_vc8_rtd.dll!omniAsyncWorker::real_run() Line 197 + 0x16
bytes C++
omniORB414_vc8_rtd.dll!omniAsyncWorkerInfo::run() Line 285 C++
omniORB414_vc8_rtd.dll!omniAsyncWorker::run(void * __formal=0x00000000)
Line 164 C++
omnithread34_vc8_rtd.dll!omni_thread_wrapper(void * ptr=0x0b635d70)
Line 502 + 0x16 bytes C++
msvcr80d.dll!_callthreadstartex() Line 348 + 0xf bytes C
- - - - -
# 5840 _threadstartex omni_mutex::lock Normal 0
- - - - -
omnithread34_vc8_rtd.dll!omni_mutex::lock() Line 237 + 0x1b bytes C++
omnithread34_vc8_rtd.dll!omni_mutex_lock::omni_mutex_lock(omni_mutex &
m={...}) Line 281 + 0x20 bytes C++
omniORB414_vc8_rtd.dll!omni::omniObjAdapter::adapterInactive() Line 562
+ 0x10 bytes C++
omniORB414_vc8_rtd.dll!omni::omniOrbPOA::do_destroy(bool
etherealize_objects=true) Line 2513 + 0xf bytes C++
omniORB414_vc8_rtd.dll!destroyer_thread_fn(void * args=0x09edfed0)
Line 4169 C++
omnithread34_vc8_rtd.dll!omni_thread_wrapper(void * ptr=0x0a0f5fc8)
Line 492 + 0x11 bytes C++
msvcr80d.dll!_callthreadstartex() Line 348 + 0xf bytes C
- - - - -
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