Bug#383976: unable to upgrade package libc6

[Daniel Jacobowitz <drow@false.org>]

On Tue, Aug 22, 2006 at 03:56:13PM +0200, Aurelien Jarno wrote:
> I now have a more precise idea of the problem. The following command
> produce a segfault:
> 
> LD_ASSUME_KERNEL=2.4.1 LD_PRELOAD=/usr/lib/libaoss.so /bin/bash -x /bin/egrep
> 
> where /bin/grep contains:
> 
> #!/bin/sh
> exec grep -E ${1+"$@"}
> 
> Note that without LD_ASSUME_KERNEL=2.4.1 (ie using nptl instead of
> linuxthreads) or using dash instead of bash, the problem goes out.
> 
> gdb returns nothing, so I don't really know where is the problem and how
> to debug it.

Can you get a core dump?  Alternatively, inserting gdbserver before
/bin/bash and using remote debugging sometimes helps; it perturbs the
process less than gdb does.  But only if the parent process is the one
you need to debug.

-- 
Daniel Jacobowitz
CodeSourcery