I was lucky and catched the situation again and could attach a GDB to the
running process. It's a bit complicated because the software is a
running server with ~10 children which server altogether a web application via
tomcat
and you do not know when you fire up a search in the browser, which
process will serve this. Anyway, here it is:
==17753== Conditional jump or move depends on uninitialised value(s)
==17753== at 0x8B5DC3A: CatTmFilterExclude (CATTmFilter.c:215)
==17753== by 0x8B8069C: SRVCatSearchMedia (SRVCatSearchMedia.c:579)
==17753== by 0x74D3683: SlnpRunModule (SLNPInterpreter.c:567)
==17753== by 0x74D31C7: SlnpInterpreter (SLNPInterpreter.c:287)
==17753== by 0x414543: SlnpMainLoop (OPServer.c:874)
==17753== by 0x413ED3: OPServer (OPServer.c:258)
==17753== by 0x413792: main (OPDaemon.c:407)
==17753== Uninitialised value was created by a stack allocation
==17753== at 0x8B43AF0: ??? (in /home/sisis/guru/libcopz39.so)
==17753==
srap22dxr1:/home/sisis/guru # gdb /opt/lib/sisis/opserver/bin/OPServer 17753
...
(gdb) info line *0x8B43AF0
No line number information available for address 0x8b43af0
<CatTmFilterExclude@plt>
I did an 'objdump -S /home/sisis/guru/libcopz39.so > libcopz39.so' of the
shared lib and the first
function in this is CatAdmCatClass(); setting a bt there shows:
(gdb) br CatAdmCatClass
Breakpoint 8 at 0x8b44ea9: file CATAdmCat.c, line 133.
(gdb) list CatAdmCatClass
127 static int AdmCatSetBool(CatAdmCatValue, CatJaNein);
128 static int AdmCatSetString(CatAdmCatValue, char *);
129 static int AdmCatSetInt(CatAdmCatValue, int);
130
131 t_adm_cat *CatAdmCatClass()
132 {
133 return &s_adm_cat;
134 }
135
136 void CatAdmCatInitFlag(CatBool is_set)
(gdb) info line *0x8b44ea9
Line 133 of "CATAdmCat.c" starts at address 0x8b44ea9 <CatAdmCatClass+4> and
ends at 0x8b44eb0 <CatAdmCatClass+11>.
i.e. the addr shown by valgrind 0x8B43AF0 has really no code in
/home/sisis/guru/libcopz39.so.
Also a hex dump underpins this:
(gdb) x/2000x 0x8B43AF0
0x8b43af0 <CatTmFilterExclude@plt>: 0x6c7225ff 0xea680025
0xe9000000 0xfffff140
0x8b43b00 <g_utf8_find_prev_char@plt>: 0x6c6a25ff 0xeb680025
0xe9000000 0xfffff130
0x8b43b10 <CatClearSisError@plt>: 0x6c6225ff 0xec680025
0xe9000000 0xfffff120
0x8b43b20 <FensterZuString@plt>: 0x6c5a25ff 0xed680025
0xe9000000 0xfffff110
0x8b43b30 <FstabLoeschen@plt>: 0x6c5225ff 0xee680025 0xe9000000
0xfffff100
0x8b43b40 <Fstab_IsNormalFeld@plt>: 0x6c4a25ff 0xef680025
0xe9000000 0xfffff0f0
0x8b43b50 <RechScanFenster@plt>: 0x6c4225ff 0xf0680025
0xe9000000 0xfffff0e0
0x8b43b60 <CatZ39ExplainFree@plt>: 0x6c3a25ff 0xf1680025
0xe9000000 0xfffff0d0
0x8b43b70 <SlnpErrIsSet@plt>: 0x6c3225ff 0xf2680025 0xe9000000
0xfffff0c0
0x8b43b80 <CatAdmUserGetUsernumber@plt>: 0x6c2a25ff 0xf3680025
0xe9000000 0xfffff0b0
0x8b43b90 <CatSearchInterprete@plt>: 0x6c2225ff 0xf4680025
0xe9000000 0xfffff0a0
0x8b43ba0 <fprintf@plt>: 0x6c1a25ff 0xf5680025 0xe9000000
0xfffff090
0x8b43bb0 <BKAllgFeldNrToFstabFeldNr@plt>: 0x6c1225ff 0xf6680025
0xe9000000 0xfffff080
0x8b43bc0 <FstabHoleTabElementByOPACKurzname@plt>: 0x6c0a25ff
0xf7680025 0xe9000000 0xfffff070
0x8b43bd0 <DB_insr@plt>: 0x6c0225ff 0xf8680025 0xe9000000
0xfffff060
0x8b43be0 <RechDBEnde@plt>: 0x6bfa25ff 0xf9680025 0xe9000000
0xfffff050
0x8b43bf0 <basename@plt>: 0x6bf225ff 0xfa680025 0xe9000000
0xfffff040
0x8b43c00 <RechAnzahlNotaId@plt>: 0x6bea25ff 0xfb680025
0xe9000000 0xfffff030
0x8b43c10 <SlnpFreeRspStatus@plt>: 0x6be225ff 0xfc680025
0xe9000000 0xfffff020
0x8b43c20 <fopen64@plt>: 0x6bda25ff 0xfd680025 0xe9000000
0xfffff010
0x8b43c30 <BAZ820@plt>: 0x6bd225ff 0xfe680025 0xe9000000
0xfffff000
0x8b43c40 <CatGenListRegisterData@plt>: 0x6bca25ff 0xff680025
0xe9000000 0xffffeff0
0x8b43c50 <CatSearchCollMainTitles@plt>: 0x6bc225ff 0x00680025
0xe9000001 0xffffefe0
0x8b43c60 <RechInitAnfrageDesc@plt>: 0x6bba25ff 0x01680025
0xe9000001 0xffffefd0
0x8b43c70 <BAZ042@plt>: 0x6bb225ff 0x02680025 0xe9000001
0xffffefc0
...
0x8b44d60 <Optab_Bez@plt>: 0x633a25ff 0x11680025 0xe9000002
0xffffded0
0x8b44d70 <g_unichar_isspace@plt>: 0x633225ff 0x12680025
0xe9000002 0xffffdec0
0x8b44d80 <CatReallocList@plt>: 0x632a25ff 0x13680025 0xe9000002
0xffffdeb0
0x8b44d90 <CatSearchDuplicate@plt>: 0x632225ff 0x14680025
0xe9000002 0xffffdea0
0x8b44da0 <RSetzeFehlerText@plt>: 0x631a25ff 0x15680025
0xe9000002 0xffffde90
0x8b44db0 <__gmon_start__@plt>: 0x512225ff 0x90660025 0x521225ff
0x90660025
0x8b44dc0 <deregister_tm_clones>: 0x60058d48 0x480025a6
0xa6523d8d 0x48550025
0x8b44dd0 <deregister_tm_clones+16>: 0x8948f829 0xf88348e5
0x5d02770e 0x058b48c3
0x8b44de0 <deregister_tm_clones+32>: 0x0025503c 0x74c08548
0xe0ff5df2 0x00401f0f
0x8b44df0 <register_tm_clones>: 0x29058d48 0x480025a6 0xa6223d8d
0x48550025
0x8b44e00 <register_tm_clones+16>: 0x8948f829 0xf8c148e5
0xc2894803 0x3feac148
0x8b44e10 <register_tm_clones+32>: 0x48d00148 0x0275f8d1
0x8b48c35d 0x25517f15
0x8b44e20 <register_tm_clones+48>: 0xd2854800 0x485df274
0xe2ffc689 0x00401f0f
0x8b44e30 <__do_global_dtors_aux>: 0xa5e93d80 0x75000025
0x3d834827 0x0025518f
0x8b44e40 <__do_global_dtors_aux+16>: 0x89485500 0x480c74e5
0x62923d8b 0x65e80025
0x8b44e50 <__do_global_dtors_aux+32>: 0xe8ffffff 0xffffff68
0xc005c65d 0x010025a5
0x8b44e60 <__do_global_dtors_aux+48>: 0x1f0fc3f3 0x2e660040
0x00841f0f 0x00000000
0x8b44e70 <frame_dummy>: 0xc03d8348 0x0000254c 0x8b482674
0x2550ff05
0x8b44e80 <frame_dummy+16>: 0xc0854800 0x48551a74 0x4caa3d8d
0x89480025
0x8b44e90 <frame_dummy+32>: 0x5dd0ffe5 0xffff57e9 0x801f0fff
0x00000000
0x8b44ea0 <frame_dummy+48>: 0xffff4be9 0x894855ff 0x058d48e5
0x0025a590
0x8b44eb0 <CatAdmCatClass+11>: 0x4855c35d 0x7d89e589 0xfc458bfc
0xa9360589
0x8b44ec0 <CatAdmCatInitFlag+14>: 0x5d900025 0x894855c3
0xec8348e5 0xfc7d8910
0x8b44ed0 <CatAdmCatSetUserNumber+11>: 0x89fc458b 0x0000bfc6
0xf8e80000 0xc9000010
0x8b44ee0 <CatAdmCatSetUserNumber+27>: 0x894855c3 0xec8348e5
0xfc7d8910 0x89fc458b
0x8b44ef0 <CatAdmCatSetSortMax+15>: 0x0001bfc6 0xdce80000
0xc9000010 0x894855c3
0x8b44f00 <CatAdmCatSetDelListPath+3>: 0xec8348e5 0x7d894810
0x458b48f8 0xc68948f8
I'd say, valgrind gives a wrong address as hint about the stack allocation, or?
I don't have any clue how to nail this down further.
matthias
--
Matthias Apitz, ✉ g...@unixarea.de, http://www.unixarea.de/ +49-176-38902045
Public GnuPG key: http://www.unixarea.de/key.pub
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