[SR-Users] DMQ Module Crash
Daniel-Constantin Mierla
miconda at gmail.com
Fri May 8 20:53:42 CEST 2020
Hello,
you have to provide the full output of gdb command from the core file:
bt full
To see the entire execution stack that cause the crash.
Cheers,
Daniel
On 08.05.20 19:09, Ilie Soltanici wrote:
> Hello,
> I'm trying to replicate a hash table to another 2 nodes by using DMQ
> Module. That's the related configuration:
>
> loadmodule "tm.so"
> loadmodule "tmx.so"
> loadmodule "dialog.so"
> loadmodule "dmq.so"
> loadmodule "htable.so"
>
> modparam("dmq", "server_address", "sip:MY_INTERNAL_IP_ADDR:5062")
> modparam("dmq", "notification_address", "sip:dmq.domain.local:5062")
> modparam("dmq", "multi_notify", 1)
> modparam("dmq", "num_workers", 4)
> modparam("dmq", "ping_interval", 90)
>
> modparam("htable", "enable_dmq", 1)
> modparam("htable", "dmq_init_sync", 1)
> modparam("htable", "htable", "test=>size=10;initval=0;dmqreplicate=1;")
>
> if(is_method("KDMQ")) {
> dmq_handle_message();
> exit;
> }
>
> After starting Kamailio - everything seems to be working fine,
> Kamailio is able to discover other nodes and replications is working
> fine, until after a few minutes I'm getting such errors in the
> Kamailio Log file:
>
> May 8 17:14:26 kamailio kamailio[28064]: CRITICAL: <core>
> [core/mem/q_malloc.c:521]: qm_free(): BUG: freeing already freed
> pointer (0x7f0ac62493e0), called from dialog: dlg_var.c:
> free_local_varlist(145), first free dialog: dlg_var.c:
> set_dlg_variable_unsafe(205) - ignoring
>
> Then, if I'm getting any SIP messages from any Device - Kamailio is
> crashing with the following info in the log file:
>
> May 8 16:03:19 kamailio kam[10963]: CRITICAL: {REGISTER (1) |
> Seq=45534 | Source IP=192.168.1.5 (tcp) | Call
> ID=Kyb-KJjf.U9ttdOwQNYu6mUWCKb2bvk7} <core> [core/mem/q_malloc.c:150]:
> qm_debug_check_frag(): BUG: qm: prev. fragm. tail overwritten(0,
> 0)[0x7f62cc746a10:0x7f62cc746a48]!
> Memory allocator was called from dialog: dlg_var.c:147. Fragment
> marked by dialog: dlg_var.c:108. Exec from core/mem/q_malloc.c:511.
> May 8 16:03:21 kamailio kam[10966]: CRITICAL: <core>
> [core/pass_fd.c:277]: receive_fd(): EOF on 59
> May 8 16:03:21 kamailio kam[10966]: DEBUG: <core>
> [core/tcp_main.c:3825]: handle_ser_child(): dead child 37, pid 10963
> (shutting down?)
> May 8 16:03:21 kamailio kam[10966]: DEBUG: <core>
> [core/io_wait.h:599]: io_watch_del(): DBG: io_watch_del (0xa9e1c0, 59,
> -1, 0x0) fd_no=48 called
> May 8 16:03:21 kamailio kam[10966]: DEBUG: <core>
> [core/tcp_main.c:3593]: handle_tcp_child(): dead tcp child 1 (pid
> 10963, no 37) (shutting down?)
> May 8 16:03:21 kamailio kam[10966]: DEBUG: <core>
> [core/io_wait.h:599]: io_watch_del(): DBG: io_watch_del (0xa9e1c0, 62,
> -1, 0x0) fd_no=47 called
> May 8 16:03:21 kamailio kam[10919]: ALERT: <core> [main.c:767]:
> handle_sigs(): child process 10963 exited by a signal 6
> May 8 16:03:21 kamailio kam[10919]: ALERT: <core> [main.c:770]:
> handle_sigs(): core was generated
> May 8 16:03:21 kamailio kam[10919]: INFO: <core> [main.c:792]:
> handle_sigs(): terminating due to SIGCHLD
> May 8 16:03:21 kamailio kam[10919]: DEBUG: <core> [main.c:794]:
> handle_sigs(): terminating due to SIGCHLD
> May 8 16:03:21 kamailio kam[10966]: INFO: <core> [main.c:847]:
> sig_usr(): signal 15 received
>
>
> This is what i got from the dump core file:
>
> uri = {user = {s = 0x3 <Address 0x3 out of bounds>, len = -264573566},
> passwd = {s = 0x788 <Address 0x788 out of bounds>, len = 8208}, host =
> {s = 0x393100000000 <Address 0x393100000000 out of bounds>, len =
> 1588950199}, port = {s = 0x2 <Address 0x2 out of bounds>,
> len = 24086112}, params = {s = 0x7ffcbb1600c0 "\200", len
> = -261173312}, sip_params = {s = 0x7ffcbb1601a8 "\300\317n\360b\177",
> len = 24086112}, headers = {s = 0x0, len = -261173312}, port_no = 424,
> proto = 47894, type = 32764,
> flags = (URI_SIP_USER_PHONE | unknown: 4031456108),
> transport = {
> s = 0x16f88cc "16:03:19 kamailio[10963]: CRITICAL:
> {REGISTER (1) | Seq=45534 | Source IP=192.168.1.5 (tcp) | Call
> ID=Kyb-KJjf.U9ttdOwQNYu6mUWCKb2bvk7} <core> [core/mem/q_malloc.c:150]:
> qm_debug_check_frag(): BUG: qm: pr"..., len = -261163168}, ttl = {
> s = 0x8 <Address 0x8 out of bounds>, len = -263517049},
> user_param = {
> s = 0x16f88cc "16:03:19 kamailio[10963]: CRITICAL:
> {REGISTER (1) | Seq=45534 | Source IP=192.168.1.5 (tcp) | Call
> ID=Kyb-KJjf.U9ttdOwQNYu6mUWCKb2bvk7} <core> [core/mem/q_malloc.c:150]:
> qm_debug_check_frag(): BUG: qm: pr"..., len = -264350686}, maddr = {
> s = 0x3336393031000080 <Address 0x3336393031000080 out of
> bounds>, len = 8187}, method = {s = 0x0, len = 24086112}, lr = {s =
> 0x820ce8 "%s: %s%s(): cseq <%.*s>: <%.*s> <%.*s>\n", len =
> -1156185384}, r2 = {s = 0xb <Address 0xb out of bounds>, len = 21}, gr = {
> s = 0xffffffff <Address 0xffffffff out of bounds>, len =
> -264780793}, transport_val = {s = 0x1ff4 <Address 0x1ff4 out of
> bounds>, len = 24086720}, ttl_val = {s = 0x7f62f06f0760 <main_arena>
> "", len = 128}, user_param_val = {s = 0x16f88b0 "`\002", len = 144},
> maddr_val = {s = 0x15 <Address 0x15 out of bounds>, len =
> -264573566}, method_val = {s = 0x788 <Address 0x788 out of bounds>,
> len = 8208}, lr_val = {s = 0x0, len = 1588950199}, r2_val = {s = 0x2
> <Address 0x2 out of bounds>, len = 24086112}, gr_val = {
> s = 0x7ffcbb1601f0 "\006", len = -261173312}}
> next_hop = {user = {s = 0x0, len = 0}, passwd = {s = 0x0, len
> = 0}, host = {s = 0x7f62f06eef20 <_nl_C_LC_NUMERIC+32> "", len = 0},
> port = {s = 0x0, len = 0}, params = {s = 0x7f620000000b <Address
> 0x7f620000000b out of bounds>, len = 0}, sip_params = {
> s = 0x7f62f03762cd <vfprintf+19661>
> "\200\275\360\372\377\377", len = 0}, headers = {s = 0x0, len = -1},
> port_no = 25293, proto = 61495, type = 32610, flags =
> (URI_USER_NORMALIZE | URI_SIP_USER_PHONE), transport = {s =
> 0x7ffcbb160038 "\267t\265^", len = 24086112},
> ttl = {s = 0xffffffff <Address 0xffffffff out of bounds>,
> len = 0}, user_param = {s = 0x7d62e8 "%s: %.*s%s%s(): preparing to run
> routing scripts...\n", len = 11}, maddr = {s = 0xbd <Address 0xbd out
> of bounds>, len = 3440}, method = {s = 0x7d631c "", len = -263511186},
> lr = {s = 0x16f88cc "16:03:19 kamailio[10963]: CRITICAL:
> {REGISTER (1) | Seq=45534 | Source IP=192.168.1.5 (tcp) | Call
> ID=Kyb-KJjf.U9ttdOwQNYu6mUWCKb2bvk7} <core> [core/mem/q_malloc.c:150]:
> qm_debug_check_frag(): BUG: qm: pr"..., len = -261163168}, r2 = {
> s = 0x8 <Address 0x8 out of bounds>, len = -263517049}, gr = {
> s = 0x16f88cc "16:03:19 kamailio[10963]: CRITICAL:
> {REGISTER (1) | Seq=45534 | Source IP=192.168.1.5 (tcp) | Call
> ID=Kyb-KJjf.U9ttdOwQNYu6mUWCKb2bvk7} <core> [core/mem/q_malloc.c:150]:
> qm_debug_check_frag(): BUG: qm: pr"..., len = -264350686},
> transport_val = {
> s = 0x7d62ef "s%s%s(): preparing to run routing
> scripts...\n", len = 8187}, ttl_val = {s = 0x0, len = -264345823},
> user_param_val = {s = 0x3000000010 <Address 0x3000000010 out of
> bounds>, len = -1156184608}, maddr_val = {
> s = 0x7ffcbb160520 "\341+:\213'H\027\203\341+\342ޙ>\356|",
> len = 21}, method_val = {s = 0x7ffcbb160250 "\023", len =
> -1156186080}, lr_val = {s = 0x7f62f06eef80 <_nl_C_LC_TIME>
> "r\036K\360b\177", len = -1156185648}, r2_val = {s = 0x17ff710 "IST",
> len = -1156186048},
> gr_val = {s = 0x0, len = -1156186058}}
> u = 0x400001ff4
>
> By disabling DMQ Module i haven't noticed any crashes or issues like
> that, so i suppose that Kamailio is crashing because of this module,
> but i can be wrong. I've tried with 2 versions of Kamailio (5.2.6 and
> 5.3.4), both of them having the same issue.
>
> Thanks
>
>
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--
Daniel-Constantin Mierla -- www.asipto.com
www.twitter.com/miconda -- www.linkedin.com/in/miconda
Funding: https://www.paypal.me/dcmierla
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