Hi, Indeed, the most likely cause is a load ordering issue. Surprisingly (actually I think this is a compiler error), gSystem must be neither zero nor a valid value. You could assert this 'guess' by putting a fprintf(stderr,"0x%x\n",gSystem); in TTimer::Reset(). You may also want to check that ldd esmd returns the expected libraries. Cheers, Philippe. -----Original Message----- From: owner-roottalk@pcroot.cern.ch [mailto:owner-roottalk@pcroot.cern.ch]On Behalf Of Mathes, Hermann-Josef Sent: Monday, May 10, 2004 10:46 AM To: roottalk@cern.ch Cc: Mathes, Hermann-Josef; kopmann@ik.fzk.de; michael.funcke@physik.uni-wuppertal.de Subject: [ROOT] Crashing before main() Dear Rooters, I have a problem in a large application coming probably from some dynamic library incompatibilities. The program is crashing before main() is executed. I am using the following 'environment': - SuSE Linux 7.3 with gcc 2.95.3 and kernel 2.4.10 - root 3.05.07, generated with the options: "./configure linux --enable-table --enable-thread --enable-soversion" - Mico 2.3.0 (a free CORBA implementation) - Entire-X 6.1.1 (DCOM for Linux/Unix) + OCSLTK 1.1 (this is an OPC=OLE for Process Control built on top of DCOM) The problem persits independent from the fact if a TROOT object is created. Im not using any ROOT classes (like TObject & Co. or TSocket) simply the dictionary compiled into one of my own libs. Using this rather 'old' releases is done for technical (hardware & driver compatibility) reasons. The DCOM-stuff is using threads (intrinsically for IUnknown derived client side interfaces=callbacks). This is the error I get (with/without debugger): mathes@ikauger2:~/FD-DAS/Eye/Esm/daemon> esmd Segmentation fault mathes@ikauger2:~/FD-DAS/Eye/Esm/daemon> gdb esmd GNU gdb 20010316 CThis GDB was configured as "i386-suse-linux"... (gdb) r Starting program: /home/mathes/FD-DAS/Eye/Esm-devel/daemon/esmd [New Thread 1024 (LWP 4509)] Program received signal SIGSEGV, Segmentation fault. [Switching to Thread 1024 (LWP 4509)] 0x410547b1 in TTimer::Reset () from /usr/local/root-3.05.07/lib/libCore.so.3.05 (gdb) back #0 0x410547b1 in TTimer::Reset () from /usr/local/root-3.05.07/lib/libCore.so.3.05 #1 0x41054317 in TTimer::TTimer () from /usr/local/root-3.05.07/lib/libCore.so.3.05 #2 0x41054b8e in __static_initialization_and_destruction_0 () from /usr/local/root-3.05.07/lib/libCore.so.3.05 #3 0x41054e12 in global constructors keyed to TTimer::TTimer () from /usr/local/root-3.05.07/lib/libCore.so.3.05 #4 0x412d8f27 in __do_global_ctors_aux () from /usr/local/root-3.05.07/lib/libCore.so.3.05 #5 0x40fe4452 in _init () from /usr/local/root-3.05.07/lib/libCore.so.3.05 #6 0x4000b7a7 in call_init () from /lib/ld-linux.so.2 #7 0x4000b900 in _dl_init () from /lib/ld-linux.so.2 (gdb) Thanks for any help or proposal to solve the problem. Regards Hermann-Josef
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