[buildd-tools-devel] Bug#568517: Bug#568517: schroot: segfaults at start

[Andrew Schulman]

> Thanks.  If you could possibly try to run in gdb, that would be
> even better.  You'll need to install gdb, schroot-dbg and also
> libc6-dbg and libstdc++6-4.4-dbg.  You can then (as root) run
> 'gdb /usr/bin/schroot' and in gdb run 'run <schroot-options>',
> wait until the segfault and then type 'backtrace'.  The
> backtrace is what I need, and this should pinpoint the exact
> point of the failure.

The backtrace reports 'No stack', and before that, gdb says 'no debugging
symbols found'.  The full gdb log is below.  All of schroot-dbg, libc6-dbg,
and libstdc++6-4.4-dbg are installed.

# gdb /usr/bin/schroot
GNU gdb (GDB) 7.0-debian
Copyright (C) 2009 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later
<http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from /usr/bin/schroot...Reading symbols from
/usr/lib/debug/usr/bin/schroot...done.
(no debugging symbols found)...done.
(gdb) run
Starting program: /usr/bin/schroot
[Thread debugging using libthread_db enabled]
E: Child terminated by signal ‘Segmentation fault’

Program exited with code 01.
(gdb) bt
No stack.
(gdb) quit