[SR-Users] SIP Router 3.03 topoh

[marius zbihlei]

On 11/25/2010 12:07 PM, marius zbihlei wrote:
> On 11/25/2010 12:00 PM, dotnetdub wrote:
>>
>>
>> On 24 November 2010 07:10, Daniel-Constantin Mierla 
>> <miconda at gmail.com <mailto:miconda at gmail.com>> wrote:
>>
>>     If you don't have the mask ip to your host ip (kamailio listening
>>     ip) like Alex pointed, do you have a core dump from where you can
>>     send the backtrace?
>>
>>     Cheers,
>>     Daniel
>>
>>
>>
>> Hi Alex/Daniel,
>>
>> so THe IP of this SIP proxy is x.x.x.11 and I am using x.x.x.10 for 
>> the Mask IP.
>>
>> I see the coredump in the root of the server..
>>
>> ls /core -lah
>> -rw------- 1 root root 134M 2010-11-20 19:48 /core
>>
>> which is the date it crashed.
>>
>> gdb /sbin/kamailio /core
>>
>> This GDB was configured as "i486-linux-gnu"...
>> Cannot access memory at address 0xb75f3fb0
>>
>>
>> I am running gdb from debian repo on 5.04 maybe I need to compile gdb?
>>
> Hello,
>
> No, the problem is with the coredump AFAIK. Try looking thru 
> /var/log/messages and dmesg for any indication of a coredump and the 
> module that generated it. Please email those lines as well.

Hello
I see that the interesting line is already in the first mail . Please 
try this

readelf -S /path/to/topoh.so

You should have somethink like this

   [Nr] Name              Type            Addr     Off    Size   ES Flg 
Lk Inf Al
   [ 0]                   NULL            00000000 000000 000000 00      
0   0  0
.....
   [10] .init             PROGBITS        00001914 001914 000030 00  AX  
0   0  4
   [11] .plt              PROGBITS        00001944 001944 000430 04  AX  
0   0  4
   [12] .text             PROGBITS        00001d80 001d80 008008 00  AX  
0   0 16

Note the address of the .text segment (in my case is 0x00001d80)

Then

gdb /path/to/kamailio core.dump

in the gdb console load the topoh.so

add-symbol-file /path/to/topoh.so 0xb7004000 + 0x<offset of .text 
segment found as above>

then check the value of the Instruction pointer IP (0xb70070d9) Still in 
the gdb console

x/s 0xb70070d9

You will get an offset relative to a function where the crashed 
happened. This would be very helpful so please share the finding. Also 
do a info registers (in the gdb console) and paste the content of the 
registers as well.

Marius
>
> Marius
>> Thanks
>> Brian
>>
>>
>>
>>
>>
>

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