Re: [OpenSIPS-Users] core generated by opensips

Bogdan-Andrei Iancu Mon, 31 Aug 2015 12:46:47 -0700

Thank you Rahul,

the whole req variable seems to be garbage :(.


Could you additionally print ingdb:
    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=<valueoptimized 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 optimizedout>, 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>) atmain.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/TCP10.204.70.154:5070;branch=z9hG4bK+540c4cc39bb7b8e44a"...,

start = 0x6d782b6c6d736d2f <Address 0x6d782b6c6d736d2f out ofbounds>, pos = 0x462d78614d0a0d6c <Address 0x462d78614d0a0d6c out ofbounds>,

parsed = 0x3a7364726177726f <Address 0x3a7364726177726f out ofbounds>, body = 0x3c0a0d0a0d303720 <Address 0x3c0a0d0a0d303720 out ofbounds>, content_len = 1819113535, has_content_len = 30240,

complete = 29285, bytes_to_go = 1852795251, error = 774971965, state= 1696604720}


(gdb)

*From:*Bogdan-Andrei Iancu [mailto:bog...@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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