toolchain/51557: gdb can't read core files

[martin%NetBSD.org@localhost]

>Number:         51557
>Category:       toolchain
>Synopsis:       gdb can't read core files
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    toolchain-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Thu Oct 13 09:40:00 +0000 2016
>Originator:     Martin Husemann
>Release:        NetBSD 7.99.39
>Organization:
The NetBSD Foundation, Inc.
>Environment:
System: NetBSD space-truckin.duskware.de 7.99.39 NetBSD 7.99.39 (CUBIETRUCK) #291: Mon Oct 10 19:19:39 CEST 2016 martin%night-owl.duskware.de@localhost:/usr/src/sys/arch/evbarm/compile/CUBIETRUCK evbarm
Architecture: earmv7hfeb
Machine: evbarm
>Description:

Trying to read a core file in gdb crashes gdb:

# gdb gdb gdb.core
GNU gdb (GDB) 7.10.1
Copyright (C) 2015 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 "armeb--netbsdelf-eabihf".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
<http://www.gnu.org/software/gdb/documentation/>.
For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from gdb...Reading symbols from /usr/libdata/debug//usr/bin/gdb.debug...done.
done.
[New process 1]
Segmentation fault (core dumped)


>How-To-Repeat:
s/a

>Fix:
n/a