$ ./src/kamailio -f etc/crash-4.cfg -L src/modules/ -Y /tmp -E -d 0(2278) CRITICAL: <core> [core/cfg.y:3549]: yyerror_at(): parse error in config file /home/henning/repositories/kamailio/etc/crash-4.cfg, line 10, column 43: syntax error 0(2278) CRITICAL: <core> [core/cfg.y:3549]: yyerror_at(): parse error in config file /home/henning/repositories/kamailio/etc/crash-4.cfg, line 10, column 43: '('')' expected (function call) Segmentation fault (core dumped) henning@static:~/repositories/kamailio$ gdb src/kamailio core Reading symbols from src/kamailio...done. [New LWP 2278] Core was generated by `./src/kamailio -f etc/crash-4.cfg -L src/modules/ -Y /tmp -E -d'. Program terminated with signal SIGSEGV, Segmentation fault. #0 0x00005580cdbd131e in append_action (a=0x7fad84db9300, b=0x7fad84db97f8) at core/route_struct.c:147 147 for(t=a; t->next; t=t->next); (gdb) bt #0 0x00005580cdbd131e in append_action (a=0x7fad84db9300, b=0x7fad84db97f8) at core/route_struct.c:147 #1 0x00005580cdf9208b in yyparse () at core/cfg.y:2428 #2 0x00005580cdb96c11 in main (argc=9, argv=0x7ffc2d9f6a68) at main.c:2309 (gdb) f 0 #0 0x00005580cdbd131e in append_action (a=0x7fad84db9300, b=0x7fad84db97f8) at core/route_struct.c:147 147 for(t=a; t->next; t=t->next); (gdb) p a $1 = (struct action *) 0x7fad84db9300 (gdb) p b $2 = (struct action *) 0x7fad84db97f8 (gdb) p t $3 = (struct action *) 0x80 (gdb) p a->next $4 = (struct action *) 0x80 (gdb) p *t Cannot access memory at address 0x80