On Jun 12, 2010 at 13:19, Santiago Gimeno <[email protected]> wrote: > Hi, > > 2010/5/26 Andrei Pelinescu-Onciul <[email protected]> > > > > > Does the same deadlock appears with 3.0/sip-router? > > > > I have tried to reproduce the problem with the master version from git. ( > kamctl fifo version shows: Server:: kamailio (3.0.99-dev1 (i386/linux))). I > have used a modified version of kamailio.cfg sample file so it supports > pua_dialoginfo and presence_dialoginfo. After some hours of testing, one of > the udp worker processes has blocked.
By "blocked" you mean eating 100% cpu? Could you run a ps -lwwww <pid_of_blocked_process> ? > From the backtrace, the deadlock > doesn't look the same but apparently the pua_dialoginfo module is also > involved. Here is the backtrace: > > #0 0xb764766e in strncmp () from /lib/i686/cmov/libc.so.6 > #1 0xb6f63ea2 in search_htable (pres=0xbfffc828, hash_code=359) at > [...] > I have gone through the code and the process is blocked in this line of code > at ./modules_k/pua/hash.c:127 > > if((p->pres_uri->len==pres->pres_uri->len) && > (strncmp(p->pres_uri->s, > pres->pres_uri->s,pres->pres_uri->len)==0)) > > but I don't understand why it is blocking in the strncmp function as all the > values seem ok. From gdb: > > (gdb) print p->pres_uri->s > $8 = 0xa7294204 "sip:[email protected]:5060D > [email protected]\nm=audio 6000 RTP/AVP 0\r\na=rtpmap:0 > PCMU/8000\r\n" > (gdb) print p->pres_uri->len > $9 = 29 > (gdb) print pres->pres_uri->len > $10 = 29 > (gdb) print pres->pres_uri->s > $11 = 0x82d8850 "sip:[email protected]:5060u\210-\b#\002" > > Any idea why this is happening? > If it's using 100% cpu it might mean the list that search_htable() iterates on is corrupted and has become cyclic. You could also try compiling with debugging options, e.g.: make config mode=debug; make all or make config CC_EXTRA_OPTS="-O0" ; make all Andrei _______________________________________________ sr-dev mailing list [email protected] http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-dev
