[omniORB] Debugging marshaling errors

Jason Stelzer jstelzer at healthmarketscience.com
Mon Jul 30 16:33:41 BST 2007 

I have a simple value type I'm trying to coax omniorb into mapping.

I've created a factory for it which derives from the generated _init  
class and implements create_for_unmarshal and the default create()  
factory method for this object.

I have an implementation class which derives from the generated OBV  
class and CORBA::DefaultValueRefCountBase. This class also implements  
a no args constructor and a simple destructor as well as a _copy_value 
() method.

Now, when I receive an object back from the jboss server, omniorb  
segfaults. I'm trying to figure out why. The problem is, I'm not sure  
how to ensure that the idl lines up with the corba stubs generated by  
jboss at deployment time. As it stands I've registered the factory,  
but I'm unable to determine why exactly things are blowing up. Is  
there some other option to trace data marshaling calls?



omniORB: (0) Delete output value indirection tracker
omniORB: (0) inputMessage: from giop:tcp:10.67.90.64:3528 982 bytes
omniORB: (0)
4749 4f50 0102 0001 0000 03ca 0000 0004 GIOP............
0000 0000 0000 0000 7fff ff02 0000 004e ...............N
524d 493a 636f 6d2e 686d 736f 6e6c 696e RMI:com.hmsonlin
652e 6c6d 732e 636f 6d6d 6f6e 2e41 6464 e.lms.common.Add
7265 7373 5265 7375 6c74 733a 3433 4438 ressResults:43D8
3046 3332 3846 3133 3946 4530 3a30 3030 0F328F139FE0:000
3030 3030 3030 3133 3234 3045 3200 0000 00000013240E2...
0000 0000 7fff ff00 0000 0024 0036 0034 ...........$.6.4
0039 0020 0053 0020 0048 0045 004e 0044 .9. .S. .H.E.N.D
0045 0052 0053 004f 004e 0020 0052 0044 .E.R.S.O.N. .R.D
0000 0000 7fff ff00 0000 000e 0038 0036 .............8.6
0036 0033 0032 0036 0034 0000 7fff ff00 .6.3.2.6.4......
0000 001e 0034 0032 0030 0039 0031 0032 .....4.2.0.9.1.2
0030 0035 0039 0030 0035 0032 0030 0031 .0.5.9.0.5.2.0.1
0036 0000 7fff ff00 0000 004c 0050 0048 .6.........L.P.H
0049 004c 0041 0044 0045 004c 0050 0048 .I.L.A.D.E.L.P.H
0049 0041 002c 0020 0050 0041 0020 004d .I.A.,. .P.A. .M
0045 0054 0052 004f 0050 004f 004c 0049 .E.T.R.O.P.O.L.I
0054 0041 004e 0020 0044 0049 0056 0049 .T.A.N. .D.I.V.I
0053 0049 004f 004e 7fff ff00 0000 000a .S.I.O.N........
0033 0037 0039 0036 0034 0000 7fff ff00 .3.7.9.6.4......
0000 0092 0050 0048 0049 004c 0041 0044 .....P.H.I.L.A.D
0045 004c 0050 0048 0049 0041 002d 0043 .E.L.P.H.I.A.-.C
0041 004d 0044 0045 004e 002d 0057 0049 .A.M.D.E.N.-.W.I
004c 004d 0049 004e 0047 0054 004f 004e .L.M.I.N.G.T.O.N
002c 0020 0050 0041 002d 004e 004a 002d .,. .P.A.-.N.J.-
0044 0045 002d 004d 0044 0020 004d 0045 .D.E.-.M.D. .M.E
0054 0052 004f 0050 004f 004c 0049 0054 .T.R.O.P.O.L.I.T
0041 004e 0020 0053 0054 0041 0054 0049 .A.N. .S.T.A.T.I
0053 0054 0049 0043 0041 004c 0020 0041 .S.T.I.C.A.L. .A
0052 0045 0041 0000 7fff ff00 0000 000a .R.E.A..........
0033 0037 0039 0038 0030 0000 0000 0000 .3.7.9.8.0......
0000 0000 7fff ff00 0000 0022 004d 004f ...........".M.O
004e 0054 0047 004f 004d 0045 0052 0059 .N.T.G.O.M.E.R.Y
0020 0043 004f 0055 004e 0054 0059 0000 . .C.O.U.N.T.Y..
7fff ff00 0000 0086 0050 0048 0049 004c .........P.H.I.L
0041 0044 0045 004c 0050 0048 0049 0041 .A.D.E.L.P.H.I.A
002d 0043 0041 004d 0044 0045 004e 002d .-.C.A.M.D.E.N.-
0056 0049 004e 0045 004c 0041 004e 0044 .V.I.N.E.L.A.N.D
002c 0020 0050 0041 002d 004e 004a 002d .,. .P.A.-.N.J.-
0044 0045 002d 004d 0044 0020 0043 004f .D.E.-.M.D. .C.O
004d 0042 0049 004e 0045 0044 0020 0053 .M.B.I.N.E.D. .S
0054 0041 0054 0049 0053 0054 0049 0043 .T.A.T.I.S.T.I.C
0041 004c 0020 0041 0052 0045 0041 0000 .A.L. .A.R.E.A..
7fff ff00 0000 0006 0034 0032 0038 0000 .........4.2.8..
0000 0000 7fff ff00 0000 0006 0036 0034 .............6.4
0039 0000 7fff ff00 0000 0006 0041 0053 .9...........A.S
0030 0000 7fff ff00 0000 0002 0059 0000 .0...........Y..
7fff ff00 0000 0012 0048 0045 004e 0044 .........H.E.N.D
0045 0052 0053 004f 004e 0000 0000 0000 .E.R.S.O.N......
0000 0000 0000 0000 7fff ff00 0000 0002 ................
0053 0000 0000 0000 7fff ff00 0000 001e .S..............
004b 0049 004e 0047 0020 004f 0046 0020 .K.I.N.G. .O.F.
0050 0052 0055 0053 0053 0049 0041 0000 .P.R.U.S.S.I.A..
7fff ff00 0000 0002 0048 0000 7fff ff00 .........H......
0000 0004 0052 0044 0000 0000 0000 0000 .....R.D........
7fff ff00 0000 000e 0038 0036 0036 0033 .........8.6.6.3
0032 0036 0035 0000 7fff ff00 0000 0006 .2.6.5..........
0053 0038 0030 0000 7fff ff00 0000 0004 .S.8.0..........
0050 0041 7fff ff00 0000 0008 0033 0035 .P.A.........3.5
0032 0039 7fff ff00 0000 000a 0031 0039 .2.9.........1.9
0034 0030 0036                          .4.0.6
omniORB: (0) Create input value indirection tracker
omniORB: (0) Unmarshal value  
'RMI:com.hmsonline.lms.common.AddressResults: 
43D80F328F139FE0:00000000013240E2'.

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread -1208641312 (LWP 14047)]
0x090f93d0 in ?? ()
(gdb) bt
#0  0x090f93d0 in ?? ()
#1  0x0062679d in _omni_ValueFactoryManager::create_for_unmarshal  
(id=0x90fec98 "RMI:com.hmsonline.lms.common.AddressResults: 
43D80F328F139FE0:00000000013240E2",
     hashval=1731962682) at valueFactory.cc:286
#2  0x00629167 in unmarshalHeaderAndBody (stream=@0x90fe904,  
cstreamp=0x0, tracker=0x90fe998, pos=24, tag=2147483394,
     targetId=0x8f005c "RMI:com.hmsonline.lms.common.AddressResults: 
43D80F328F139FE0:00000000013240E2", targetHash=152036432, tc=0x0) at  
valueType.cc:523
#3  0x00628bf5 in omniValueType::unmarshal (repoId=0x8f005c  
"RMI:com.hmsonline.lms.common.AddressResults: 
43D80F328F139FE0:00000000013240E2", hashval=1731962682, tc=0x0,
     stream=@0x90fe904) at valueType.cc:408
#4  0x008e2ed6 in  
com::hmsonline::lms::common::AddressResults::_NP_unmarshal  
(_0s=@0x90fe904) at AddressResultsSK.cc:96
#5  0x008e2f62 in  
com::hmsonline::lms::common::AddressResults_Helper::unmarshal  
(_0s=@0x90fe904) at AddressResultsSK.cc:110
#6  0x008ee9d3 in  
_0RL_cd_4F69AB407274632C_00000000::unmarshalReturnedValues  
(this=0xbfe8cd20, _n=@0x90fe904) at LmsCorbaSK.cc:185
#7  0x004ac94f in omniRemoteIdentity::dispatch (this=0x90fe6d0,  
call_desc=@0xbfe8cd20) at remoteIdentity.cc:183
#8  0x0048bd24 in omniObjRef::_invoke (this=0x90fe4b0,  
call_desc=@0xbfe8cd20, do_assert=true) at ../../../../include/ 
omniORB4/omniObjRef.h:252
#9  0x008eeadd in  
com::hmsonline::lms::corba::session::_objref_LmsCorba::getLmsData  
(this=0x90fe4a0, arg0=0x90fe710, arg1=0x90fe4e0, arg2=0x0,  
arg3=0x90fe520, arg4=0x90fe538)
     at LmsCorbaSK.cc:209
#10 0x008eadec in Lms::standardizeAddress (this=0x90f7840,  
line1=0xbff46bee "649 S. Henderson Rd.", line2=0xbff46c03 "King of  
prussia, pa 19406", line3=0x0,
     line4=0xbff46c1d "SSH_AGENT_PID=4075", line5=0xbff46c30  
"HOSTNAME=jstelzer-lin") at Lms.cpp:49
#11 0x008eaa25 in getAddressData (lms=0x90f7840, line1=0xbff46bee  
"649 S. Henderson Rd.", line2=0xbff46c03 "King of prussia, pa 19406",  
line3=0x0,
     line4=0xbff46c1d "SSH_AGENT_PID=4075", line5=0xbff46c30  
"HOSTNAME=jstelzer-lin") at Lms.cpp:11
#12 0x08048620 in main ()

--
J.


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