[OpenSIPS-Devel] [ opensips-Bugs-3605902 ] Opensips crashes when EXEC-Module is loaded

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Bugs item #3605902, was opened at 2013-02-25 03:45
Message generated for change (Comment added) made by chris-secusmart
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Category: modules
Group: 1.8.x
Status: Open
Resolution: Invalid
Priority: 5
Private: No
Submitted By: Christian Lahme (chris-secusmart)
Assigned to: Bogdan-Andrei Iancu (bogdan_iancu)
Summary: Opensips crashes when EXEC-Module is loaded

Initial Comment:
If you try to configure

loadmodule \"exec.so\"

you will get something similiar to this in your logs:

CRITICAL:core:receive_fd: EOF on 10
INFO:core:handle_sigs: child process 9969 exited by a signal 11
INFO:core:handle_sigs: core was generated
INFO:core:handle_sigs: terminating due to SIGCHLD

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>Comment By: Christian Lahme (chris-secusmart)
Date: 2013-03-07 04:01

Message:
I will do a machine on saturday and send you all creds.

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Comment By: Bogdan-Andrei Iancu (bogdan_iancu)
Date: 2013-03-07 03:59

Message:
Are you able to reproduce this on any other machine ? if so, it is possible
to get access to such machine to investigate ?

Regards,
Bogdan

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Comment By: Bogdan-Andrei Iancu (bogdan_iancu)
Date: 2013-02-26 07:29

Message:
Chris, this is really strange - the crash shows that an aux process (of the
exec modules) was started (the exec_async_proc process). This process is
intended to start only if async is enabled (which by default is disabled)
.

If you look in modules/exec/exec_mod.c file, the mod_init() function (line
120) : if "async" is not enabled, the exports.procs = 0 setting will take
care and prevent the aux process to be started.

Are you sure you do not have some patching on the exec module ?

Regards,
Bogdan

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Comment By: Christian Lahme (chris-secusmart)
Date: 2013-02-26 05:45

Message:
#0  exec_async_proc (rank=<value optimized out>) at exec.c:160
        pid = <value optimized out>
        status = 0
        cmd = <value optimized out>
        prev = <value optimized out>
        __FUNCTION__ = "exec_async_proc"
#1  0x0000000000468a13 in start_module_procs () at sr_module.c:585
        m = 0x7fe378c13340
        n = <value optimized out>
        l = <value optimized out>
        x = <value optimized out>
        __FUNCTION__ = "start_module_procs"
#2  0x000000000042a491 in main_loop (argc=<value optimized out>,
argv=<value optimized out>) at main.c:818
        i = <value optimized out>
        pid = <value optimized out>
        si = 0x0
        startup_done = 0x0
        chd_rank = 0
        rc = <value optimized out>
        load_p = 0x0
#3  main (argc=<value optimized out>, argv=<value optimized out>) at
main.c:1541
        cfg_log_stderr = <value optimized out>
        cfg_stream = <value optimized out>
        c = <value optimized out>
        r = 0
        tmp = 0x7fffa49e2f79 ""
        tmp_len = <value optimized out>
        port = <value optimized out>
        proto = <value optimized out>
        options = 0x4ebf28 "f:cCm:M:b:l:n:N:rRvdDETSVhw:t:u:g:P:G:W:o:"
        ret = -1
        seed = 2443337210
        rfd = <value optimized out>
        __FUNCTION__ = "main"


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Comment By: Vladut-Stefan Paiu (vladut-paiu)
Date: 2013-02-26 05:28

Message:
Hello,

Could you please post here the 'bt full' output from the core file ?

If you need help in properly generating a core file or extracting the
backtrace from it, follow the steps described at
http://www.opensips.org/Resources/DocsTsCrash

Best Regards,
Vlad

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Comment By: Christian Lahme (chris-secusmart)
Date: 2013-02-25 07:22

Message:
and it crashes at startup ...

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Comment By: Christian Lahme (chris-secusmart)
Date: 2013-02-25 06:07

Message:
Hi Răzvan,

if async is not set, it crashes in Version 1.8.2.

BR

Chris

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Comment By: Razvan Crainea (razvancrainea)
Date: 2013-02-25 06:05

Message:
Hi, Christian!

Can you tell me the OpenSIPS version you are using? Also, does it crash
during startup or during message processing?

Best regards,
Răzvan

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Comment By: Christian Lahme (chris-secusmart)
Date: 2013-02-25 05:49

Message:
modparam("exec", "async", 1) needs to be set ... -> SOLVED!

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