[Sorry if this is duplicated. May have sent to the wrong place first. Or
not.]
I seem to be encountering a deadlock in finalization in TclBlend. I am
running JDK 1.1.8, Tcl 8.2.3, and TclBlend 1.2.5 under Vignette's
StoryServer 5.0 page-generation product on SunOS 5.6. When the
page-generation process hangs, I take a stack snapshot, and what I think
are the main thread and the garbage collection thread stacks look
suspicious. They are listed below. Do you have any ideas as to what's
going on, and what I can do about it? I'd try setting tclblend_init to
"-noasyncgc", but that apparently only works with JDK 1.2.2, and in any
case I'm afraid that would just make the problem happen less often
instead of solving it.
Thank you.
MAIN THREAD
#0 0xeeb397c0 in _lwp_sema_wait ()
#1 0xef2c7eb8 in _park ()
#2 0xef2c7b9c in _swtch ()
#3 0xef2c68bc in _cond_wait_cancel ()
#4 0xee99acc8 in condvarWait ()
#5 0xee998cc0 in sysMonitorWait ()
#6 0xee96638c in runFinalization0 ()
#7 0xee968d44 in manageAllocFailure ()
#8 0xee96749c in realObjAlloc ()
#9 0xee966eb0 in cacheAlloc ()
#10 0xee967210 in realObjAlloc ()
#11 0xee967ad0 in ObjAlloc ()
#12 0xee9600c0 in newobject ()
#13 0xee9a0de0 in new_quick_0 ()
#14 0xee974708 in jni_Invoke ()
#15 0xee976394 in jni_CallVoidMethodV ()
#16 0xee97ab5c in invoke_CallVoidMethod ()
#17 0xeea46324 in FreeTclObject ()
#18 0xef05c7f4 in TclFreeObj ()
#19 0xef05ed50 in Tcl_EvalEx ()
#20 0xef05e9f4 in Tcl_EvalTokens ()
#21 0xef05eccc in Tcl_EvalEx ()
#22 0xef05e9f4 in Tcl_EvalTokens ()
#23 0xef05eccc in Tcl_EvalEx ()
#24 0xef05ef04 in Tcl_Eval ()
#25 0xef715e70 in __0fJctlInterpHevalTclRPCcPCcR6JctlBufferi ()
#26 0xef715a24 in __0fJctlInterpMevalTemplatePCcUiR6JctlBufferi ()
#27 0xef716f7c in __0fJctlInterpEEVALPvP6KTcl_InterpiPPcT ()
#28 0x2f8d8 in __0FCIFPvP6KTcl_InterpiPPc ()
#29 0xef021e7c in TclInvokeStringCommand ()
#30 0xef05e69c in EvalObjv ()
#31 0xef05ed18 in Tcl_EvalEx ()
#32 0xef05ef04 in Tcl_Eval ()
etc...
GARBAGE COLLECTION THREAD
#0 0xeeb397c0 in _lwp_sema_wait ()
#1 0xef2c7eb8 in _park ()
#2 0xef2c7b9c in _swtch ()
#3 0xef2c9314 in _mutex_adaptive_lock ()
#4 0xef2c9020 in _cmutex_lock ()
#5 0xef2d67d4 in _pthread_mutex_lock ()
#6 0xee998a6c in sysMonitorEnter ()
#7 0xee985080 in monitorEnter ()
#8 0xee97960c in jni_MonitorEnter ()
#9 0xeea4679c in Java_tcl_lang_CObject_decrRefCount ()
#10 0xee99c504 in desc_loop ()
#11 0xee95f7b0 in invokeJNINativeMethod ()
#12 0xee99cdd8 in notJavaInvocation ()
#13 0xee9711ec in do_execute_java_method_vararg ()
#14 0xee970b9c in do_execute_java_method ()
#15 0xee966b68 in finalizer_loop ()
#16 0xee9993a4 in _start ()
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