Re: Ubuntu 8.04 / 8.10

[Ray Wells <vk2tv@exemail.com.au>]

Peter,

This problem arose with fbb around kernel 2.6.20 (can't remember just 
which one now)

The fix I apply is to compile fbb with  -fno-stack-protection added to 
its Makefile. I don't have a fix if you install fbb from a deb package.

It seems that stack protection was included in kernels as a security 
plug for stack overflow.

I sent quite a bit about this to the xfbb list around 18 months ago.

Ray vk2tv

Peter Mallett wrote:
>
> Hi All,
>
>         I have been trying different distro`s in the last few days and 
> they both gave the same results as below.
>
> I have even tried to compile and run fbb 7.04r but this gave the same 
> problems.
>
> Has the above distro`s become broken for fbb ?
>
>> *** stack smashing detected ***: /usr/sbin/xfbbd terminated
>> ======= Backtrace: =========
>> /lib/tls/i686/cmov/libc.so.6(__fortify_fail+0x48)[0xb7e5e138]
>> /lib/tls/i686/cmov/libc.so.6(__fortify_fail+0x0)[0xb7e5e0f0]
>> /usr/sbin/xfbbd[0x80855a3]
>> /usr/sbin/xfbbd[0x80856c5]
>> /usr/sbin/xfbbd[0x8083da5]
>> /usr/sbin/xfbbd[0x807e4ab]
>> /usr/sbin/xfbbd[0x80878d5]
>> /usr/sbin/xfbbd[0x804dbdc]
>> /lib/tls/i686/cmov/libc.so.6(__libc_start_main+0xe0)[0xb7d87450]
>> /usr/sbin/xfbbd[0x804aa01]
>> ======= Memory map: ========
>> 08048000-080db000 r-xp 00000000 08:21 605287     /usr/sbin/xfbbd
>> 080db000-080dd000 rw-p 00093000 08:21 605287     /usr/sbin/xfbbd
>> 080dd000-08269000 rw-p 080dd000 00:00 0          [heap]
>> b7d1a000-b7d24000 r-xp 00000000 08:21 1403541    /lib/libgcc_s.so.1
>> b7d24000-b7d25000 rw-p 0000a000 08:21 1403541    /lib/libgcc_s.so.1
>> b7d31000-b7d70000 r--p 00000000 08:21 636870     
>> /usr/lib/locale/en_NZ.utf8/LC_CTYPE
>> b7d70000-b7d71000 rw-p b7d70000 00:00 0
>> b7d71000-b7eba000 r-xp 00000000 08:21 1420840    
>> /lib/tls/i686/cmov/libc-2.7.so
>> b7eba000-b7ebb000 r--p 00149000 08:21 1420840    
>> /lib/tls/i686/cmov/libc-2.7.so
>> b7ebb000-b7ebd000 rw-p 0014a000 08:21 1420840    
>> /lib/tls/i686/cmov/libc-2.7.so
>> b7ebd000-b7ec0000 rw-p b7ebd000 00:00 0
>> b7ec0000-b7ec7000 r-xp 00000000 08:21 605061     
>> /usr/lib/libax25.so.0.0.0
>> b7ec7000-b7ec8000 rw-p 00007000 08:21 605061     
>> /usr/lib/libax25.so.0.0.0
>> b7ec8000-b7eeb000 r-xp 00000000 08:21 1420844    
>> /lib/tls/i686/cmov/libm-2.7.so
>> b7eeb000-b7eed000 rw-p 00023000 08:21 1420844    
>> /lib/tls/i686/cmov/libm-2.7.so
>> b7eed000-b7eee000 rw-p b7eed000 00:00 0
>> b7ef1000-b7ef3000 rw-p b7ef1000 00:00 0
>> b7ef3000-b7efa000 r--s 00000000 08:21 612282     
>> /usr/lib/gconv/gconv-modules.cache
>> b7efa000-b7efb000 rw-p b7efa000 00:00 0
>> b7efb000-b7efc000 r-xp b7efb000 00:00 0          [vdso]
>> b7efc000-b7f16000 r-xp 00000000 08:21 1403532    /lib/ld-2.7.so
>> b7f16000-b7f18000 rw-p 00019000 08:21 1403532    /lib/ld-2.7.so
>> bfccd000-bfce2000 rw-p bffeb000 00:00 0          [stack]
>> Aborted
>> Configuration error ! Giving up.
>> root@iGate:/etc/ax25#
>>
>
> Regards ..... Peter
>
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