[asterisk-dev] asterisk 1.4 developer needed

[Tilghman Lesher]

On Tuesday, September 13, 2011 07:05:18 AM Theo Belder wrote:
> We know that asterisk 1.4 isn't supported anymore but we receive each
> week notices from systems about that asterisk is crashed at customer
> locations.
> 
> When we check the core dump (DONT_OPTIMIZE is turned off) we see
> often the following result of 'bt' command in gdb:
> #0  0x008ad7a2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
> #1  0x008ed7a5 in raise () from /lib/tls/libc.so.6
> #2  0x008ef209 in abort () from /lib/tls/libc.so.6
> #3  0x0092171a in __libc_message () from /lib/tls/libc.so.6
> #4  0x00927fbf in _int_free () from /lib/tls/libc.so.6
> #5  0x0092833a in free () from /lib/tls/libc.so.6
> #6  0x080aeb91 in __ast_module_user_remove (mod=0x9ecff4, u=0x9ee840)
> at loader.c:224
> #7  0x00147028 in local_hangup (ast=0xa17e670) at chan_local.c:682
> #8  0x08087df1 in ast_hangup (chan=0xa17e670) at channel.c:1708
> #9  0x0015f3fa in dial_exec_full (chan=0x9f82660, data=Variable
> "data" is not available.
> ) at app_dial.c:1926
> #10 0x001623b4 in dial_exec (chan=0x0, data=0x6) at app_dial.c:1967
> #11 0x080cec70 in pbx_extension_helper (c=0x9f82660, con=Variable
> "con" is not available.
> ) at
> /usr/src/SMR-core/applications/asterisk-1.4.41-patched/include/asteri
> sk/strings.h:36 #12 0x080d37db in __ast_pbx_run (c=0x9f82660) at
> pbx.c:2371
> #13 0x080d591e in pbx_thread (data=0x9f82660) at pbx.c:2693
> #14 0x081068c5 in dummy_start (data=0x6) at utils.c:856
> #15 0x00c48371 in start_thread () from /lib/tls/libpthread.so.0
> #16 0x0098dffe in clone () from /lib/tls/libc.so.6
> 
> At most systems asterisk 1.4.41 or 1.4.42 is running.
> 
> Is somebody willing to help us to resolve these crashes?

If this is easily reproducible, kindly run the process under Valgrind,
redirecting valgrind output to a file.  This backtrace suggests that the
malloc structures are being corrupted, which occurs when something
writes over either end of an allocated memory space.

-- 
Tilghman