If raid-disk 0 is /dev/null, raidstart SEGV's :-(
open("/etc/raidtab", O_RDONLY) = 3
open("/dev/md0", O_RDONLY) = 4
ioctl(4, 0x800c0910, 0x804cfd8) = 0
close(4) = 0
fstat(3, {st_mode=0, st_size=0, ...}) = 0
mmap(0, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) =
0x4000b000
read(3, "raiddev /dev/md0\n raid-level"..., 4096) = 1092
read(3, "", 4096) = 0
stat("/dev/null", {st_mode=0403, st_size=0, ...}) = 0
open("/dev/md0", O_RDWR) = 4
ioctl(4, 0x931 <unfinished ...>
+++ killed by SIGSEGV +++
Again, it would be helpful if it were a bit more graceful when failing :-(
