``` Reading symbols from kamailio...Reading symbols from /usr/lib/debug/.build-id/10/824757bd1066806f2e19310929e17a9009a991.debug...done. done. [New LWP 5583] [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". Core was generated by `/usr/sbin/kamailio -f /etc/kamailio/proxy/kamailio.cfg -P /var/run/kamailio/kam'. Program terminated with signal SIGSEGV, Segmentation fault. #0 xavp_get_internal (name=0x7f486b2f7568, list=<optimized out>, idx=0, prv=0x0) at xavp.c:265 265 xavp.c: No such file or directory. (gdb) bt #0 xavp_get_internal (name=0x7f486b2f7568, list=<optimized out>, idx=0, prv=0x0) at xavp.c:265 #1 0x00007f486306b8b3 in pv_get_xavp (msg=0x7f4866d8e5f0, param=0x7f486b2f7768, res=0x7ffceb21ed90) at pv_xavp.c:134 #2 0x000000000058f96e in pv_get_spec_value (msg=0x7f4866d8e5f0, sp=0x7f486b2f7750, value=0x7ffceb21ed90) at pvapi.c:1307 #3 0x00007f479badb45d in lua_sr_pv_get (L=0x2b46aa0) at app_lua_sr.c:906 ... (gdb) f 3 #3 0x00007f479badb45d in lua_sr_pv_get (L=0x2b46aa0) at app_lua_sr.c:906 906 app_lua_sr.c: No such file or directory. (gdb) p pvn $5 = {s = 0x2c47588 "$xavp(caller_dom_prefs=>dummy)", len = 30} (gdb) f 2 #2 0x000000000058f96e in pv_get_spec_value (msg=0x7f4866d8e5f0, sp=0x7f486b2f7750, value=0x7ffceb21ed90) at pvapi.c:1307 1307 pvapi.c: No such file or directory. (gdb) p sp $6 = (pv_spec_p) 0x7f486b2f7750 (gdb) p *sp $7 = {type = PVT_XAVP, getf = 0x7f486306b810 <pv_get_xavp>, setf = 0x7f486306c640 <pv_set_xavp>, pvp = {pvn = {type = 1, nfree = 0x0, u = {isname = {type = 1798272592, name = {n = 0, s = { s = 0x0, len = 0}, re = 0x0}}, dname = 0x7f486b2f7650}}, pvi = {type = 0, u = { ival = 0, dval = 0x0}}}, trans = 0x0} (gdb) f 1 #1 0x00007f486306b8b3 in pv_get_xavp (msg=0x7f4866d8e5f0, param=0x7f486b2f7768, res=0x7ffceb21ed90) at pv_xavp.c:134 134 pv_xavp.c: No such file or directory. (gdb) p xname $8 = (pv_xavp_name_t *) 0x7f486b2f7650 (gdb) p *xname $9 = {name = {s = 0x7f486b2f77b6 "caller_dom_prefs=>dummy)", len = 16}, index = {type = PVT_NONE, getf = 0x0, setf = 0x0, pvp = {pvn = {type = 0, nfree = 0x0, u = {isname = {type = 0, name = { n = 0, s = {s = 0x0, len = 0}, re = 0x0}}, dname = 0x0}}, pvi = {type = 0, u = { ival = 0, dval = 0x0}}}, trans = 0x0}, next = 0x7f486b2f7568} (gdb) p *xname->next $10 = {name = {s = 0x7f486b2f77c8 "dummy)", len = 5}, index = {type = PVT_NONE, getf = 0x0, setf = 0x0, pvp = {pvn = {type = 0, nfree = 0x0, u = {isname = {type = 0, name = {n = 0, s = { s = 0x0, len = 0}, re = 0x0}}, dname = 0x0}}, pvi = {type = 0, u = {ival = 0, dval = 0x0}}}, trans = 0x0}, next = 0x0} (gdb) p avp $11 = <optimized out> (gdb) p avp->val value has been optimized out (gdb) p avp->val.v value has been optimized out (gdb) p avp->val.v.xavp value has been optimized out ```

Relevant code? ``` static sr_xavp_t *xavp_get_internal(str *name, sr_xavp_t **list, int idx, sr_xavp_t **prv) { sr_xavp_t *avp; unsigned int id; int n = 0;

if(name==NULL || name->s==NULL) return NULL; id = get_hash1_raw(name->s, name->len); if(list && *list) avp = *list; else avp = *_xavp_list_crt; while(avp) { if(avp->id==id && avp->name.len==name->len && strncmp(avp->name.s, name->s, name->len)==0) { if(idx==n) return avp; n++; } if(prv) *prv = avp; avp = avp->next; } return NULL; } ```