This is for an ACK and slightly different case -- it can happen only with MEMDBG=1 -- I will look over it as well.

Can you run another test with:

mem_safety=1

?

Still keeping MEMDBG=1

Daniel

 

On 09/12/13 19:22, Kelvin Chua wrote:

#0  0x00007fbf3aee9425 in raise () from /lib/x86_64-linux-gnu/libc.so.6

No symbol table info available.

#1  0x00007fbf3aeecb8b in abort () from /lib/x86_64-linux-gnu/libc.so.6

No symbol table info available.

#2  0x000000000054d710 in qm_free (qm=0x7fbf30414000, p=0x7fbf3088a9a8, file=0x7fbf38b85cb5 "tm: h_table.c", 

    func=0x7fbf38b85e58 "free_cell", line=157) at mem/q_malloc.c:470

        f = 0x7fbf3088a978

        size = 0

        next = 0x7fbf30449518

        prev = 0x7fbf3088c660

        __FUNCTION__ = "qm_free"

#3  0x00007fbf38b19b10 in free_cell (dead_cell=0x7fbf30887de8) at h_table.c:157

        b = 0x7fff7da2d4b0 " ֢}\377\177"

        i = 1

        rpl = 0x7fbf30887de8

        tt = 0x7fff7da2d9c0

        foo = 0x22b7da2d3d0

        cbs = 0x0

        cbs_tmp = 0x0

        __FUNCTION__ = "free_cell"

#4  0x00007fbf38b4a486 in t_unref (p_msg=0x7fbf3abbf368) at t_lookup.c:1574

        kr = 12

        __FUNCTION__ = "t_unref"

#5  0x00007fbf38b4e60b in w_t_unref (foo=0x7fbf3abbf368, flags=2147483649, bar=0x0) at tm.c:725

No locals.

#6  0x00000000004db5bb in exec_post_script_cb (msg=0x7fbf3abbf368, type=REQUEST_CB_TYPE) at script_cb.c:195

        cb = 0x7fbf3abf4fa0

        flags = 2147483649

#7  0x00000000004a9cd8 in receive_msg (

    buf=0x9263c0 "ACK sip:18X88X441X1@2X8.1X1.3X.2X SIP/2.0\r\nVia: SIP/2.0/UDP 125.60.156.243:17218;rport;branch=z9hG4bKogunmjtk\r\nMax-Forwards: 16\r\nProxy-Authorization: Digest username=\"kelvin\",realm=\"2X8.1X1.3X.2X\",non".

.., len=555, rcv_info=0x7fff7da2d680) at receive.c:227

        msg = 0x7fbf3abbf368

        ctx = {rec_lev = -1, run_flags = 0, last_retcode = 984293392, jmp_env = {{__jmpbuf = {140459304019208, 

                1204527218, 8881072, 0, 0, 0, 0, 140459312289652}, __mask_was_saved = 5, __saved_mask = {__val = {

                  0, 140459304039824, 1, 140459125283080, 1204527218, 2107823648, 1024, 6402790880, 

                  140459125283080, 140735301211616, 5493883, 4087102589, 140459125283080, 16963, 140459125283080, 

                  140735301211772}}}}}

        ret = 0

        inb = {

          s = 0x9263c0 "ACK sip:18X88X441X1@2X8.1X1.3X.2X SIP/2.0\r\nVia: SIP/2.0/UDP 125.60.156.243:17218;rport;branch=z9hG4bKogunmjtk\r\nMax-Forwards: 16\r\nProxy-Authorization: Digest username=\"kelvin\",realm=\"2X8.1X1.3X.2X\",non"..., len = 555}

        __FUNCTION__ = "receive_msg"

#8  0x000000000054148b in udp_rcv_loop () at udp_server.c:557

        len = 555

        buf = "ACK sip:18X88X441X1@2X8.1X1.3X.2X SIP/2.0\r\nVia: SIP/2.0/UDP 125.60.156.243:17218;rport;branch=z9hG4bKogunmjtk\r\nMax-Forwards: 16\r\nProxy-Authorization: Digest username=\"kelvin\",realm=\"2X8.1X1.3X.2X\",non"...

        tmp = 0x7fff7da2d690 "\020ע}\377\177"

        from = 0x7fbf3abc4df0

        fromlen = 16

        ri = {src_ip = {af = 2, len = 4, u = {addrl = {8382069885, 140735301211920}, addr32 = {4087102589, 1, 

                2107823888, 32767}, addr16 = {15485, 62364, 1, 0, 55056, 32162, 32767, 0}, 

              addr = "}<\234\363\001\000\000\000\020ע}\377\177\000"}}, dst_ip = {af = 2, len = 4, u = {addrl = {

                489123792, 0}, addr32 = {489123792, 0, 0, 0}, addr16 = {28624, 7463, 0, 0, 0, 0, 0, 0}, 

              addr = "\320o'\035", '\000' <repeats 11 times>}}, src_port = 17218, dst_port = 5060, 

          proto_reserved1 = 0, proto_reserved2 = 0, src_su = {s = {sa_family = 2, 

              sa_data = "CB}<\234\363\000\000\000\000\000\000\000"}, sin = {sin_family = 2, sin_port = 16963, 

              sin_addr = {s_addr = 4087102589}, sin_zero = "\000\000\000\000\000\000\000"}, sin6 = {

              sin6_family = 2, sin6_port = 16963, sin6_flowinfo = 4087102589, sin6_addr = {__in6_u = {

                  __u6_addr8 = '\000' <repeats 15 times>, __u6_addr16 = {0, 0, 0, 0, 0, 0, 0, 0}, __u6_addr32 = {

                    0, 0, 0, 0}}}, sin6_scope_id = 0}}, bind_address = 0x7fbf3aaf03d8, proto = 1 '\001'}

        __FUNCTION__ = "udp_rcv_loop"

#9  0x000000000046ce9c in main_loop () at main.c:1638

        i = 0

        pid = 0

        si = 0x7fbf3aaf03d8

        si_desc = "udp receiver child=0 sock=2X8.1X1.3X.2X:5060\000\364\357:\000\\,5\277\177\000\000r\240\313G\000\000\000\000\000DA\000\000\000\000\000\300٢}\377\177", '\000' <repeats 18 times>"\360, ע}\377\177\000\000\232\373K\000\000\000\000\000\020آ}\377\177\000\000\240Ó\000\000\000\000"

        nrprocs = 4

        __FUNCTION__ = "main_loop"

#10 0x000000000046fec0 in main (argc=15, argv=0x7fff7da2d9c8) at main.c:2566

        cfg_stream = 0xfd6010

        c = -1

        r = 0

        tmp = 0x7fff7da2df48 ""

        tmp_len = 0

        port = 4274515

        proto = 0

        options = 0x5e5c10 ":f:cm:M:dVIhEeb:l:L:n:vKrRDTN:W:w:t:u:g:P:G:SQ:O:a:A:"

        ret = -1

        seed = 3558558127

        rfd = 4

        debug_save = 0

        debug_flag = 0

        dont_fork_cnt = 0

        n_lst = 0x5d0670

        p = 0xc2 <Address 0xc2 out of bounds>

        __FUNCTION__ = "main"

...cut

Kelvin Chua

On Tue, Dec 10, 2013 at 1:04 AM, Daniel-Constantin Mierla <miconda@gmail.com> wrote:

It is a different place now, can you give the bt full output?

Cheers,
Daniel

On 09/12/13 17:18, Kelvin Chua wrote:

i didn's set any global parameter, just the defaults.

yes, i can reproduce it consistently, i just send an INVITE and CANCEL while kamailio is trying the destinations. (serial forks to non-existent IP)

after i send the CANCEL, kamailio will crash.

below is the MEMDBG=1 syslog:

Dec  9 11:12:14 kelvin /usr/local/sbin/kamailio[22191]: WARNING: tm [t_lookup.c:1564]: t_unref(): WARNING: script writer didn't release transaction

Dec  9 11:12:14 kelvin /usr/local/sbin/kamailio[22189]: : <core> [mem/q_malloc.c:468]: qm_free(): BUG: qm_free: freeing already freed pointer (0x7f35a60e01e0), called from tm: h_table.c: free_cell(157), first free tm: h_table.c: free_cell(157) - aborting

Dec  9 11:12:14 kelvin /usr/local/sbin/kamailio[22209]: : <core> [pass_fd.c:293]: receive_fd(): ERROR: receive_fd: EOF on 13

Dec  9 11:12:14 kelvin /usr/local/sbin/kamailio[22186]: ALERT: <core> [main.c:788]: handle_sigs(): child process 22189 exited by a signal 6

Dec  9 11:12:14 kelvin /usr/local/sbin/kamailio[22186]: ALERT: <core> [main.c:791]: handle_sigs(): core was generated

Dec  9 11:12:14 kelvin /usr/local/sbin/kamailio[22186]: ERROR: ctl [ctl.c:379]: mod_destroy(): ERROR: ctl: could not delete unix socket /tmp/kamailio_ctl: Operation not permitted (1)

Dec  9 11:12:14 kelvin /usr/local/sbin/kamailio[22186]: : <core> [mem/q_malloc.c:468]: qm_free(): BUG: qm_free: freeing already freed pointer (0x7f35a60e01e0), called from tm: h_table.c: free_cell(157), first free tm: h_table.c: free_cell(157)

Kelvin Chua

On Mon, Dec 9, 2013 at 11:54 PM, Daniel-Constantin Mierla <miconda@gmail.com> wrote:

Can you compile with MEMDBG=1 in Makefile.defs and try again? Might be a memory overwritten issues somewhere. Look in the syslog for memory related message.

Few more details needed ... do you have memjoin global parameter set? Is the situation reproducible, or it happens sporadically?

Cheers,
Daniel

On 09/12/13 16:45, Kelvin Chua wrote:

tried latest branch 4.0, also segfault

similar backtrace

Kelvin Chua

On Mon, Dec 9, 2013 at 7:13 PM, Daniel-Constantin Mierla <miconda@gmail.com> wrote:

Hello,

can you try latest branch 4.0? There were some fixes for similar case. Soon will be a 4.0.5 release.

Cheers,
Daniel

On 09/12/13 10:35, Kelvin Chua wrote:

following is backtrace:

#0  qm_detach_free (frag=0x7f91a4656170, qm=<optimized out>) at mem/q_malloc.c:269

        prev = 0x7f91a4656170

        next = 0x0

#1  qm_malloc (qm=0x7f91a429b000, size=3840) at mem/q_malloc.c:386

        f = 0x7f91a4656170

        hash = -1536859792

#2  0x000000000050977f in shm_malloc (size=3832) at parser/../mem/shm_mem.h:262

        p = <optimized out>

#3  sip_msg_shm_clone (org_msg=0x7f91ae9d7630, sip_msg_len=0x7fff56a2dde0, clone_lumps=0) at sip_msg_clone.c:502

        len = 3832

        hdr = <optimized out>

        new_hdr = <optimized out>

        last_hdr = <optimized out>

        via = <optimized out>

        prm = <optimized out>

        to_prm = <optimized out>

        new_to_prm = <optimized out>

        new_msg = <optimized out>

        p = <optimized out>

        __FUNCTION__ = "sip_msg_shm_clone"

#4  0x00007f91ac989062 in build_cell (p_msg=0x7f91ae9d7630) at h_table.c:372

        new_cell = 0x7f91a4656180

        sip_msg_len = <optimized out>

        old = <optimized out>

        cbs = <optimized out>

        cbs_tmp = <optimized out>

        xold = <optimized out>

#5  0x00007f91ac9b5fc6 in new_t (p_msg=0x7f91ae9d7630) at t_lookup.c:1357

        new_cell = <optimized out>

#6  t_newtran (p_msg=0x7f91ae9d7630) at t_lookup.c:1497

        lret = <optimized out>

        my_err = <optimized out>

        canceled = <optimized out>

        __FUNCTION__ = "t_newtran"

#7  0x00007f91ac9a99e0 in t_forward_cancel (p_msg=0x7f91ae9d7630, proxy=0x0, proto=0, tran=0x7fff56a2e2c0) at t_fwd.c:1607

        t_invite = <optimized out>

        t = 0x0

        ret = <optimized out>

        new_tran = <optimized out>

        dst = {send_sock = 0x63371f, to = {s = {sa_family = 54224, sa_data = "\003\255\221\177\000\000\020\300\220\256\221\177\000"}, sin = {sin_family = 54224, 

              sin_port = 44291, sin_addr = {s_addr = 32657}, sin_zero = "\020\300\220\256\221\177\000"}, sin6 = {sin6_family = 54224, sin6_port = 44291, 

              sin6_flowinfo = 32657, sin6_addr = {__in6_u = {__u6_addr8 = "\020\300\220\256\221\177\000\000\070\261W\000\000\000\000", __u6_addr16 = {49168, 44688, 

                    32657, 0, 45368, 87, 0, 0}, __u6_addr32 = {2928721936, 32657, 5747000, 0}}}, sin6_scope_id = 0}}, id = 0, proto = 96 '`', send_flags = {

            f = 225 '\341', blst_imask = 162 '\242'}}

        host = {s = 0x0, len = 0}

        port = <optimized out>

        __FUNCTION__ = "t_forward_cancel"

#8  0x00007f91ac99ae15 in t_relay_to (p_msg=0x7f91ae9d7630, proxy=0x0, proto=0, replicate=0) at t_funcs.c:264

        ret = 0

        new_tran = <optimized out>

        t = <optimized out>

        dst = {send_sock = 0x0, to = {s = {sa_family = 0, sa_data = '\000' <repeats 13 times>}, sin = {sin_family = 0, sin_port = 0, sin_addr = {s_addr = 0}, 

              sin_zero = "\000\000\000\000\000\000\000"}, sin6 = {sin6_family = 0, sin6_port = 0, sin6_flowinfo = 0, sin6_addr = {__in6_u = {

                  __u6_addr8 = '\000' <repeats 15 times>, __u6_addr16 = {0, 0, 0, 0, 0, 0, 0, 0}, __u6_addr32 = {0, 0, 0, 0}}}, sin6_scope_id = 0}}, id = 0, 

          proto = 64 '@', send_flags = {f = 243 '\363', blst_imask = 162 '\242'}}

        port = <optimized out>

        host = {s = 0x7fff56a2eab8 "0[*\244\221\177", len = -1398876638}

        __FUNCTION__ = "t_relay_to"

Kelvin Chua

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-- 
Daniel-Constantin Mierla - http://www.asipto.com
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda

_______________________________________________
SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
sr-users@lists.sip-router.org
http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users

-- 
Daniel-Constantin Mierla - http://www.asipto.com
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda

-- 
Daniel-Constantin Mierla - http://www.asipto.com
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda

-- 
Daniel-Constantin Mierla - http://www.asipto.com
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda