Hi Itamar,
Please ignore the first block, I wanted to remove it before push, but I forgot…
What I tried to simulate is the situation the thread which calls
IndexSearcher::search method ends
after IndexSearcher object is deleted. The logic in the test is, of course,
stupid, but the
situation itself doesn’t need to be result of incorrect logic I think (eg. if
you are using pool of working
threads on shared set of IndexSearchers and want to decrease number of
IndexSearchers
without need to stop all working threads).
Borek
From: Itamar Syn-Hershko [mailto:ita...@divrei-tora.com]
Sent: Friday, July 30, 2010 1:32 PM
To: clucene-developers@lists.sourceforge.net
Subject: Re: [CLucene-dev] Exception during thread finish
Hi Borek,
I'm not sure I understand what you tried to do in the code you sent -
especially with the deletion mutex. However, if I replace the line:
CONDITION_WAIT(deleteMutex, deleteCondition);
>From your search function with
_LUCENE_THREAD_FUNC_RETURN(0);
The second block of code runs just fine. If I don't comment out the first
block, it seem to run indefinitely.
I'd say your code logic is incorrect. See how threading is done in
TestThreading.cpp. You may want to implement the searcher deletion from the
main thread managing the searcher threads instead of from the searcher threads
themselves.
I tested with the atomicthreads branch only.
Itamar.
On 28/7/2010 1:34 PM, Kostka Bořivoj wrote:
Enclosed test reproduces the problem with master branch. Could anybody try it
with atomicthreads?
Borek
-----Original Message-----
From: Kostka Bořivoj [mailto:kos...@tovek.cz]
Sent: Tuesday, July 27, 2010 10:22 AM
To: clucene-developers@lists.sourceforge.net
Subject: Re: [CLucene-dev] Exception during thread finish
I'm trying to to write some simpe test which produces the problem now.
It (probably) happens if thread calling _search finishes after related
IndexSearcher is deleted
Borek
-----Original Message-----
From: Itamar Syn-Hershko [mailto:ita...@code972.com]
Sent: Monday, July 26, 2010 8:28 PM
To: clucene-developers@lists.sourceforge.net
Subject: Re: [CLucene-dev] Exception during thread finish
If you're sure this is not a race condition between your
threads, try
the atomicthreads branch. We fixed several threading errors
there.
Actually, if this resolves this issue, I might just go ahead
and merge
it to master and wait no more...
Itamar.
On 26/7/2010 3:51 PM, Kostka Bořivoj wrote:
I run the IndexSearcher::_search method from separate
thread (different from
thread
where IndexSearcher is created and deleted).
When the thread finishes, I get exceptionin
mutex_thread::lock() The reason is
_internal is already deleted (contains 0xdddddddd).
Any idea what could be wrong?
Borek
Call stack:
clucene-sharedd.dll!lucene::util::mutex_thread::lock()
Line 50 + 0x5 bytes
C++
clucene-
sharedd.dll!lucene::util::mutexGuard::mutexGuard(lucene::util::mutex_thread&
rMutex={...}) Line 248 C++
clucene-cored.dll!lucene::util::_ThreadLocal::setNull()
Line 139 + 0x15 bytes
C++
clucene-cored.dll!lucene::util::ThreadLocals::UnregisterThread() Line 232
C++
clucene-cored.dll!lucene::util::_ThreadLocal::UnregisterCurrentThread() Line
210
C++
clucene-cored.dll!DllMain(unsigned short hinstDLL=0,
unsigned long
fdwReason=3,
void * __formal=0x00000000) Line 37 C++
clucene-cored.dll!__DllMainCRTStartup(void *
hDllHandle=0x01010000, unsigned
long dwReason=3, void * lpreserved=0x00000000) Line 498 + 0x11
bytes C
clucene-cored.dll!_DllMainCRTStartup(void *
hDllHandle=0x01010000, unsigned
long dwReason=3, void * lpreserved=0x00000000) Line 462 + 0x11
bytes C
ntdll.dll!_ldrpcallinitrout...@16() + 0x14 bytes
ntdll.dll!_ldrshutdownthr...@0() + 0xed bytes
kernel32.dll!_exitthr...@4() + 0x3e bytes
msvcr80d.dll!_endthreadex(unsigned int retcode=0) Line
414 C
msvcr80d.dll!_callthreadstartex() Line 348 + 0x15
bytes C
msvcr80d.dll!_threadstartex(void * ptd=0x0164fc80)
Line 331 C
kernel32.dll!_basethreadst...@8() + 0x37 bytes
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