[OpenSIPS-Users] core generated by opensips

Gupta, Rahul Rahul.Gupta at ipc.com
Mon Aug 31 21:50:59 CEST 2015 

Hi Bogdan, following is the info you requested. This is not the first tcp read, this server is been running for a while and taking calls.

(gdb) bt
#0  0x00007f2095572e2c in vfprintf () from /lib64/libc.so.6
#1  0x00007f209560fed0 in __vsyslog_chk () from /lib64/libc.so.6
#2  0x00007f2095610100 in syslog () from /lib64/libc.so.6
#3  0x00000000004c4202 in tcp_read_req (con=0x7f2081a933c0, bytes_read=0x7ffc6bc97f0c) at tcp_read.c:597
#4  0x00000000004c5908 in handle_io (fm=<value optimized out>, idx=-1, event_type=<value optimized out>) at tcp_read.c:1033
#5  0x00000000004c8083 in io_wait_loop_epoll (unix_sock=<value optimized out>) at io_wait.h:845
#6  tcp_receive_loop (unix_sock=<value optimized out>) at tcp_read.c:1141
#7  0x00000000004b12e9 in tcp_init_children (chd_rank=<value optimized out>, startup_done=0x0) at tcp_main.c:2389
#8  0x000000000043aebf in main_loop (argc=<value optimized out>, argv=<value optimized out>) at main.c:1011
#9  main (argc=<value optimized out>, argv=<value optimized out>) at main.c:1612
(gdb) f 3
#3  0x00000000004c4202 in tcp_read_req (con=0x7f2081a933c0, bytes_read=0x7ffc6bc97f0c) at tcp_read.c:597
597     tcp_read.c: No such file or directory.
        in tcp_read.c
(gdb) p con->con_req
$1 = (struct tcp_req *) 0x7f20931a97e0
(gdb) p &current_req
$2 = (struct tcp_req *) 0x82d720
(gdb) p req
$3 = (struct tcp_req *) 0x7f20931a97e0
(gdb)

From: Bogdan-Andrei Iancu [mailto:bogdan at opensips.org]
Sent: Monday, August 31, 2015 3:45 PM
To: Gupta, Rahul; OpenSIPS users mailling list
Subject: Re: [OpenSIPS-Users] core generated by opensips

Thank you Rahul,

the whole req variable seems to be garbage :(.

Could you additionally print in gdb:
    con->con_req
    &current_req
    req

Also, does this crash happens on the first TCP read ? or after a while, after several read ops ?

Regards,


Bogdan-Andrei Iancu

OpenSIPS Founder and Developer

http://www.opensips-solutions.com
On 31.08.2015 15:26, Gupta, Rahul wrote:
Hi Bogdan, here are the details you requested

(gdb) bt
#0  0x00007f2095572e2c in vfprintf () from /lib64/libc.so.6
#1  0x00007f209560fed0 in __vsyslog_chk () from /lib64/libc.so.6
#2  0x00007f2095610100 in syslog () from /lib64/libc.so.6
#3  0x00000000004c4202 in tcp_read_req (con=0x7f2081a933c0, bytes_read=0x7ffc6bc97f0c) at tcp_read.c:597
#4  0x00000000004c5908 in handle_io (fm=<value optimized out>, idx=-1, event_type=<value optimized out>) at tcp_read.c:1033
#5  0x00000000004c8083 in io_wait_loop_epoll (unix_sock=<value optimized out>) at io_wait.h:845
#6  tcp_receive_loop (unix_sock=<value optimized out>) at tcp_read.c:1141
#7  0x00000000004b12e9 in tcp_init_children (chd_rank=<value optimized out>, startup_done=0x0) at tcp_main.c:2389
#8  0x000000000043aebf in main_loop (argc=<value optimized out>, argv=<value optimized out>) at main.c:1011
#9  main (argc=<value optimized out>, argv=<value optimized out>) at main.c:1612
(gdb) f 3
#3  0x00000000004c4202 in tcp_read_req (con=0x7f2081a933c0, bytes_read=0x7ffc6bc97f0c) at tcp_read.c:597
597     tcp_read.c: No such file or directory.
        in tcp_read.c
(gdb) p *req
$1 = {next = 0x3,
  buf = "\022Ø\000\000\000\000\000M\000\000\000\000\000\000\000T", '\000' <repeats 15 times>, "p\227\032\223 \177\000\000p\227\032\223 \177\000\000H\000\000\000\000\000\000\000\250\203\032\223 \177\000\000\300\227\032\223 \177\000\000\001\000\000\000\000\000\000\000\264×\000\000\000\000\000\003\000\000\000\000\000\000\000\271×\000\000\000\000\000R\000\000\000\000\000\000\000Y", '\000' <repeats 15 times>, "Ð\032\223 \177\000\000Ð\032\223 \177\000\000\200", '\000' <repeats 15 times>, "P\221\026\223 \177\000\000Via: SIP/2.0/TCP 10.204.70.154:5070;branch=z9hG4bK+540c4cc39bb7b8e44a"...,
  start = 0x6d782b6c6d736d2f <Address 0x6d782b6c6d736d2f out of bounds>, pos = 0x462d78614d0a0d6c <Address 0x462d78614d0a0d6c out of bounds>,
  parsed = 0x3a7364726177726f <Address 0x3a7364726177726f out of bounds>, body = 0x3c0a0d0a0d303720 <Address 0x3c0a0d0a0d303720 out of bounds>, content_len = 1819113535, has_content_len = 30240,
  complete = 29285, bytes_to_go = 1852795251, error = 774971965, state = 1696604720}
(gdb)

From: Bogdan-Andrei Iancu [mailto:bogdan at opensips.org]
Sent: Monday, August 31, 2015 5:25 AM
To: OpenSIPS users mailling list; Gupta, Rahul
Subject: Re: [OpenSIPS-Users] core generated by opensips

Hi Rahul,

Could you do in gdb:

    p *req

to see all the field of the request structure.

Thanks,



Bogdan-Andrei Iancu

OpenSIPS Founder and Developer

http://www.opensips-solutions.com
On 30.08.2015 23:31, Gupta, Rahul wrote:
Hi, I am using opensips-1.11.5-tls and the opensips crashed with the following gdb trace. Seems like it crashed while printing error message. Is this something already fixed

LM_ERR("bad request, state=%d, error=%d "
                                  "buf:\n%.*s\nparsed:\n%.*s\n", req->state, req->error,
                                  (int)(req->pos-req->buf), req->buf,
                                  (int)(req->parsed-req->start), req->start);

(gdb) bt
#0  0x00007f2095572e2c in vfprintf () from /lib64/libc.so.6
#1  0x00007f209560fed0 in __vsyslog_chk () from /lib64/libc.so.6
#2  0x00007f2095610100 in syslog () from /lib64/libc.so.6
#3  0x00000000004c4202 in tcp_read_req (con=0x7f2081a933c0, bytes_read=0x7ffc6bc97f0c) at tcp_read.c:597
#4  0x00000000004c5908 in handle_io (fm=<value optimized out>, idx=-1, event_type=<value optimized out>) at tcp_read.c:1033
#5  0x00000000004c8083 in io_wait_loop_epoll (unix_sock=<value optimized out>) at io_wait.h:845
#6  tcp_receive_loop (unix_sock=<value optimized out>) at tcp_read.c:1141
#7  0x00000000004b12e9 in tcp_init_children (chd_rank=<value optimized out>, startup_done=0x0) at tcp_main.c:2389
#8  0x000000000043aebf in main_loop (argc=<value optimized out>, argv=<value optimized out>) at main.c:1011
#9  main (argc=<value optimized out>, argv=<value optimized out>) at main.c:1612
(gdb) f 3
#3  0x00000000004c4202 in tcp_read_req (con=0x7f2081a933c0, bytes_read=0x7ffc6bc97f0c) at tcp_read.c:597
597     tcp_read.c: No such file or directory.
        in tcp_read.c
(gdb) info 3
Undefined info command: "3".  Try "help info".
(gdb) print buf
$1 = 0
(gdb) print req
$2 = (struct tcp_req *) 0x7f20931a97e0
(gdb) print req->state
$3 = 1696604720
(gdb) print req->error
$4 = 774971965
(gdb) print req->buf
$5 = "\022Ø\000\000\000\000\000M\000\000\000\000\000\000\000T", '\000' <repeats 15 times>, "p\227\032\223 \177\000\000p\227\032\223 \177\000\000H\000\000\000\000\000\000\000\250\203\032\223 \177\000\000\300\227\032\223 \177\000\000\001\000\000\000\000\000\000\000\264×\000\000\000\000\000\003\000\000\000\000\000\000\000\271×\000\000\000\000\000R\000\000\000\000\000\000\000Y", '\000' <repeats 15 times>, "Ð\032\223 \177\000\000Ð\032\223 \177\000\000\200", '\000' <repeats 15 times>, "P\221\026\223 \177\000\000Via: SIP/2.0/TCP 10.204.70.154:5070;branch=z9hG4bK+540c4cc39bb7b8e44a"...
(gdb) print req->start
$6 = 0x6d782b6c6d736d2f <Address 0x6d782b6c6d736d2f out of bounds>
(gdb) print req->parsed-req->start
$7 = -3676281973086354112
(gdb) print req->pos-req->buf
$8 = 5056690538022925700
(gdb) print (int)(req->pos-req->buf)
$9 = -1175489148
(gdb) print (int)(req->pos-req->buf)
$10 = -1175489148
(gdb) print (int)(req->parsed-req->start)
$11 = -201063104
(gdb)

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