<br><br><div class="gmail_quote">On 25 November 2010 11:00, marius zbihlei <span dir="ltr"><<a href="mailto:marius.zbihlei@1and1.ro">marius.zbihlei@1and1.ro</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<div text="#000000" bgcolor="#ffffff"><div><div></div><div class="h5">
On 11/25/2010 12:07 PM, marius zbihlei wrote:
<blockquote type="cite">
On 11/25/2010 12:00 PM, dotnetdub wrote:
<blockquote type="cite"><br>
<br>
<div class="gmail_quote">On 24 November 2010 07:10,
Daniel-Constantin
Mierla <span dir="ltr"><<a href="mailto:miconda@gmail.com" target="_blank">miconda@gmail.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="border-left:1px solid rgb(204, 204, 204);margin:0pt 0pt 0pt 0.8ex;padding-left:1ex">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?<br>
<br>
Cheers,<br>
Daniel
<div>
<div><br>
</div>
</div>
</blockquote>
<div><br>
</div>
<div><br>
</div>
<div>Hi Alex/Daniel,</div>
<div><br>
</div>
<div>so THe IP of this SIP proxy is x.x.x.11 and I am using
x.x.x.10
for the Mask IP.</div>
<div><br>
</div>
<div>I see the coredump in the root of the server..</div>
<div><br>
</div>
<div>
<div>ls /core -lah</div>
<div>-rw------- 1 root root 134M 2010-11-20 19:48 /core</div>
</div>
<div><br>
</div>
<div>which is the date it crashed.</div>
<div><br>
</div>
<div>
<div>gdb /sbin/kamailio /core</div>
</div>
<div><br>
</div>
<div>
<div>This GDB was configured as "i486-linux-gnu"...</div>
<div>Cannot access memory at address 0xb75f3fb0</div>
</div>
<div><br>
</div>
<div><br>
</div>
<div>I am running gdb from debian repo on 5.04 maybe I need to
compile gdb?</div>
<div><br>
</div>
</div>
</blockquote>
Hello, <br>
<br>
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.<br>
</blockquote>
<br></div></div>
Hello<br>
I see that the interesting line is already in the first mail . Please
try this<br>
<br>
readelf -S /path/to/topoh.so<br></div></blockquote><div><br></div><div><br></div><div><div>There are 36 section headers, starting at offset 0x17b34:</div><div><br></div><div>Section Headers:</div><div> [Nr] Name Type Addr Off Size ES Flg Lk Inf Al</div>
<div> [ 0] NULL 00000000 000000 000000 00 0 0 0</div><div> [ 1] .hash HASH 000000b4 0000b4 000498 04 A 3 0 4</div><div> [ 2] .gnu.hash GNU_HASH 0000054c 00054c 0002d8 04 A 3 0 4</div>
<div> [ 3] .dynsym DYNSYM 00000824 000824 000650 10 A 4 1 4</div><div> [ 4] .dynstr STRTAB 00000e74 000e74 000581 00 A 0 0 1</div><div> [ 5] .gnu.version VERSYM 000013f6 0013f6 0000ca 02 A 3 0 2</div>
<div> [ 6] .gnu.version_r VERNEED 000014c0 0014c0 000030 00 A 4 1 4</div><div> [ 7] .rel.dyn REL 000014f0 0014f0 0001d0 08 A 3 0 4</div><div> [ 8] .rel.plt REL 000016c0 0016c0 000210 08 A 3 10 4</div>
<div> [ 9] .init PROGBITS 000018d0 0018d0 000030 00 AX 0 0 4</div><div> [10] .plt PROGBITS 00001900 001900 000430 04 AX 0 0 4</div><div> [11] .text PROGBITS 00001d30 001d30 0080d8 00 AX 0 0 16</div>
<div> [12] .fini PROGBITS 00009e08 009e08 00001c 00 AX 0 0 4</div><div> [13] .rodata PROGBITS 00009e24 009e24 001618 01 AMS 0 0 4</div><div> [14] .eh_frame PROGBITS 0000b43c 00b43c 000004 00 A 0 0 4</div>
<div> [15] .ctors PROGBITS 0000c440 00b440 000008 00 WA 0 0 4</div><div> [16] .dtors PROGBITS 0000c448 00b448 000008 00 WA 0 0 4</div><div> [17] .jcr PROGBITS 0000c450 00b450 000004 00 WA 0 0 4</div>
<div> [18] .dynamic DYNAMIC 0000c454 00b454 0000c8 08 WA 4 0 4</div><div> [19] .got PROGBITS 0000c51c 00b51c 00006c 04 WA 0 0 4</div><div> [20] .got.plt PROGBITS 0000c588 00b588 000114 04 WA 0 0 4</div>
<div> [21] .data PROGBITS 0000c6a0 00b6a0 00012c 00 WA 0 0 32</div><div> [22] .bss NOBITS 0000c7e0 00b7cc 0004a0 00 WA 0 0 32</div><div> [23] .comment PROGBITS 00000000 00b7cc 0000d9 00 0 0 1</div>
<div> [24] .debug_aranges PROGBITS 00000000 00b8a8 0000b0 00 0 0 8</div><div> [25] .debug_pubnames PROGBITS 00000000 00b958 000448 00 0 0 1</div><div> [26] .debug_info PROGBITS 00000000 00bda0 005dd1 00 0 0 1</div>
<div> [27] .debug_abbrev PROGBITS 00000000 011b71 0007a8 00 0 0 1</div><div> [28] .debug_line PROGBITS 00000000 012319 0014b9 00 0 0 1</div><div> [29] .debug_frame PROGBITS 00000000 0137d4 0004b0 00 0 0 4</div>
<div> [30] .debug_str PROGBITS 00000000 013c84 001d76 01 MS 0 0 1</div><div> [31] .debug_loc PROGBITS 00000000 0159fa 001ebe 00 0 0 1</div><div> [32] .debug_ranges PROGBITS 00000000 0178b8 000140 00 0 0 8</div>
<div> [33] .shstrtab STRTAB 00000000 0179f8 00013b 00 0 0 1</div><div> [34] .symtab SYMTAB 00000000 0180d4 0009e0 10 35 58 4</div><div> [35] .strtab STRTAB 00000000 018ab4 0006ec 00 0 0 1</div>
<div>Key to Flags:</div><div> W (write), A (alloc), X (execute), M (merge), S (strings)</div><div> I (info), L (link order), G (group), x (unknown)</div><div> O (extra OS processing required) o (OS specific), p (processor specific)</div>
</div><div><br></div><div><br></div><div><br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"><div text="#000000" bgcolor="#ffffff">You should have somethink like this<br>
<br>
[Nr] Name Type Addr Off Size ES Flg
Lk Inf Al<br>
[ 0] NULL 00000000 000000 000000 00
0 0 0<br>
.....<br>
[10] .init PROGBITS 00001914 001914 000030 00 AX
0 0 4<br>
[11] .plt PROGBITS 00001944 001944 000430 04 AX
0 0 4<br>
[12] .text PROGBITS 00001d80 001d80 008008 00 AX
0 0 16<br>
<br>
Note the address of the .text segment (in my case is 0x00001d80) <br>
<br>
Then<br>
<br>
gdb /path/to/kamailio core.dump<br>
<br></div></blockquote><div><br></div><div>All ok</div><div><br></div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"><div text="#000000" bgcolor="#ffffff">
in the gdb console load the topoh.so<br>
<br>
add-symbol-file /path/to/topoh.so 0xb7004000 + 0x<offset of .text
segment found as above> <br>
<br></div></blockquote><div><br></div><div>Ok.</div><div><br></div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"><div text="#000000" bgcolor="#ffffff">
then check the value of the Instruction pointer IP (0xb70070d9) Still
in the gdb console <br>
<br>
x/s 0xb70070d9<br>
<br></div></blockquote><div><br></div><div><br></div><div><div>x/s 0xb70070d9</div><div>0xb70070d9:<span class="Apple-tab-span" style="white-space:pre"> </span> <Address 0xb70070d9 out of bounds></div></div><div><br>
</div><div><br></div><div><div>(gdb) x/s 0x00001d30</div><div>0x1d30 <__do_global_dtors_aux>:<span class="Apple-tab-span" style="white-space:pre"> </span> <Address 0x1d30 out of bounds></div><div>(gdb) x/s 0xb700400</div>
<div>0xb700400 <__do_global_dtors_aux>:<span class="Apple-tab-span" style="white-space:pre"> </span> <Address 0xb700400 out of bounds></div></div><div><br></div><div><br></div><div><br></div><div><br></div><div>
Brian</div><div><br></div><div><br></div><div><br></div><div><br></div><div><br></div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"><div text="#000000" bgcolor="#ffffff">
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.<br>
<br>
Marius <br>
<blockquote type="cite"><br>
Marius<br>
<blockquote type="cite">
<div class="gmail_quote">
<div>Thanks</div>
<div>Brian</div>
<div><br>
</div>
<div><br>
</div>
<div><br>
</div>
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</div>
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</blockquote>
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</blockquote>
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</div>
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