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Subject: Re: Problem with new image-prelink
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On Tue, 2011-09-13 at 02:58 +0000, James Limbouris wrote:
> root@192:~# gdb prelink
> <...>
> Reading symbols from /usr/sbin/prelink...Reading symbols from /usr/sbin/.debug/prelink...done.
> done.
> (gdb) set follow-fork-mode child
> (gdb) run -a
> Starting program: /usr/sbin/prelink -a
> [New process 1712]
> process 1712 is executing new program: /usr/sbin/prelink-rtld
> [ 2777.370000] Alignment trap: prelink-rtld (1712) PC=0x410f9990 Instr=0xe5922024 Address=0x00000025 FSR 0x001
> 
> Program received signal SIGBUS, Bus error.
> [Switching to process 1712]
> 0x410f9990 in __ctype_b_loc () at ../include/ctype.h:30
> 30          *tablep = (const uint16_t *) _NL_CURRENT (LC_CTYPE, _NL_CTYPE_CLASS) + 128;

Just in case it's not obvious, the fact that this address is unaligned
is the least of your worries.  Even if alignment didn't matter, you
would just get a segfault instead since 0x25 is never going to be a
valid pointer.

I guess you need to investigate where the value in r2 is coming from and
figure out why it has this bogus value.

p.