Bug 526761

[root@localhost ~]# rpm -q mdadm
mdadm-3.0-4.fc12.i686

[root@localhost ~]# uname -r
2.6.31-2.fc12.i686

[root@localhost ~]# mdadm --export --detail /dev/md0
MD_LEVEL=raid5
MD_DEVICES=3
MD_METADATA=0.90
MD_UUID=5f25b866:114bb09e:bfe78010:bc810f04
Segmentation fault

[root@localhost ~]# gdb mdadm
GNU gdb (GDB) Fedora (6.8.91.20090917-2.fc12)
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 "i686-redhat-linux-gnu".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from /sbin/mdadm...Reading symbols from /usr/lib/debug/sbin/mdadm.debug...done.
done.
(gdb) run mdadm --export --detail /dev/md0
Starting program: /sbin/mdadm mdadm --export --detail /dev/md0
warning: the debug information found in "/usr/lib/debug//lib/ld-2.10.90.so.debug" does not match "/lib/ld-linux.so.2" (CRC mismatch).

warning: the debug information found in "/usr/lib/debug/lib/ld-2.10.90.so.debug" does not match "/lib/ld-linux.so.2" (CRC mismatch).

warning: the debug information found in "/usr/lib/debug//lib/libc-2.10.90.so.debug" does not match "/lib/libc.so.6" (CRC mismatch).

warning: the debug information found in "/usr/lib/debug/lib/libc-2.10.90.so.debug" does not match "/lib/libc.so.6" (CRC mismatch).

mdadm: error opening mdadm: No such file or directory
MD_LEVEL=raid5
MD_DEVICES=3
MD_METADATA=0.90
MD_UUID=5f25b866:114bb09e:bfe78010:bc810f04

Program received signal SIGSEGV, Segmentation fault.
0x003ed2a0 in __strlen_sse2 () from /lib/libc.so.6
Missing separate debuginfos, use: debuginfo-install glibc-2.10.90-22.i686
(gdb) bt
#0  0x003ed2a0 in __strlen_sse2 () from /lib/libc.so.6
#1  0x0808308e in set_member_info (st=<value optimized out>, ent=0x80b2170) at mapfile.c:306
#2  0x08083543 in RebuildMap () at mapfile.c:369
#3  0x08083b7d in map_read (melp=<value optimized out>) at mapfile.c:166
#4  0x08083cf0 in map_by_uuid (map=<value optimized out>, uuid=<value optimized out>) at mapfile.c:246
#5  0x0805c218 in Detail (dev=<value optimized out>, brief=<value optimized out>, export=<value optimized out>, test=<value optimized out>, 
    homehost=<value optimized out>) at Detail.c:175
#6  0x0804c4cd in main (argc=<value optimized out>, argv=<value optimized out>) at mdadm.c:1326
(gdb) quit
A debugging session is active.

	Inferior 1 [process 27983] will be killed.

Quit anyway? (y or n) y
[root@localhost ~]# cat /etc/mdadm.conf 
ARRAY /dev/md0 level=raid5 num-devices=3 UUID=5f25b866:114bb09e:bfe78010:bc810f04
[root@localhost ~]# ls -al /var/run/mdadm/
total 8
drwx------.  2 root root 4096 2009-09-17 13:47 .
drwxr-xr-x. 32 root root 4096 2009-10-01 19:21 ..