Hi Michael,
> > When trying to use "column" I found an easy way to reproduce a segfault;
> > I guess it's the same here, as both data files start with whitespace.
> >
> > $ echo '<ctrl-v><tab>aa' | column
> > Segmentation fault
> >
> > Ie. sending a <Tab> character as first character seems to cause the crash.
>
> Not sure if this is the same problem or not, but again I cannot reproduce. Do
> you still see it? Any idea what might be different? I'm on up-to-date sid. Can
> you debug?
Well, it only got easier - just start it:
$ column
Speicherzugriffsfehler
$ gdb --args column
GNU gdb (Debian 7.10-1+b1) 7.10
...
Starting program: /usr/bin/column
Program received signal SIGSEGV, Segmentation fault.
0x0000000000401919 in ?? ()
(gdb) bt
#0 0x0000000000401919 in ?? ()
#1 0x0000000000400f67 in ?? ()
#2 0x00007ffff7a57870 in __libc_start_main (main=0x400d50, argc=0x1,
argv=0x7fffffffdfa8, init=<optimized out>, fini=<optimized out>,
rtld_fini=<optimized out>,
stack_end=0x7fffffffdf98) at libc-start.c:291
#3 0x0000000000401001 in ?? ()
$ which column
/usr/bin/column
$ ls -la /usr/bin/column
-rwxr-xr-x 1 root root 14616 Nov 27 11:16 /usr/bin/column
$ sha1sum /usr/bin/column
9d420d6114b0a1e55ca0c8ba3e694200d802a6fd /usr/bin/column
$ md5sum /usr/bin/column
e06e22651bc021be0effbccb494e8f5c /usr/bin/column
$ dpkg-query -l bsdmainutils
...
ii bsdmainutils 9.0.6+b1 amd64 collection of more utilities
from FreeBSD
$ dpkg --verify bsdmainutils ; echo $?
0
