Comment 1 for bug 282492

http://neil.brown.name/git?p=mdadm;a=commitdiff;h=60b435db5a7b085ad1204168879037bf14ebd6d1

BTW this patch fixes issue.

Before:
bexamous@nine:~$ sudo mdadm -A -f /dev/md3 /dev/sdb3 /dev/sdc3 /dev/sde3 /dev/sdf3 /dev/sdg3 /dev/sdh3
mdadm: forcing event count in /dev/sdb3(0) from 93274 upto 93278
Segmentation fault (core dumped)

After:
bexamous@nine:~$ sudo mdadm -v -A -f --run /dev/md3 /dev/sdb3 /dev/sdc3 /dev/sde3 /dev/sdf3 /dev/sdg3 /dev/sdh3
mdadm: looking for devices for /dev/md3
mdadm: /dev/sdb3 is identified as a member of /dev/md3, slot 0.
mdadm: /dev/sdc3 is identified as a member of /dev/md3, slot 1.
mdadm: /dev/sde3 is identified as a member of /dev/md3, slot 2.
mdadm: /dev/sdf3 is identified as a member of /dev/md3, slot 3.
mdadm: /dev/sdg3 is identified as a member of /dev/md3, slot 4.
mdadm: /dev/sdh3 is identified as a member of /dev/md3, slot 5.
mdadm: forcing event count in /dev/sdb3(0) from 93274 upto 93278
mdadm: forcing event count in /dev/sdc3(1) from 93274 upto 93278
mdadm: forcing event count in /dev/sde3(2) from 93274 upto 93278
mdadm: added /dev/sdc3 to /dev/md3 as 1
mdadm: added /dev/sde3 to /dev/md3 as 2
mdadm: added /dev/sdf3 to /dev/md3 as 3
mdadm: added /dev/sdg3 to /dev/md3 as 4
mdadm: added /dev/sdh3 to /dev/md3 as 5
mdadm: no uptodate device for slot 6 of /dev/md3
mdadm: added /dev/sdb3 to /dev/md3 as 0
mdadm: /dev/md3 has been started with 6 drives (out of 7).