Fedora 17
kernel-3.3.4-5.fc17.x86_64
kmod-7-2.fc17.x86_64

Problem:

Two XFS partitions are specified in /etc/fstab:

/dev/vdb	/srv/node/vdb	xfs	noatime,nodiratime,defaults 1 2
/dev/vdc	/srv/node/vdc	xfs	noatime,nodiratime,defaults 1 2

One of them always fails to mount. Reason is a modprobe race.
Purported to be fixed in bz#771285 in kmod-5-8, but is not.

Solution:

cat <<EOF >/etc/rc.modules
#!/bin/sh
modprobe xfs
EOF
chmod 755 /etc/rc.modules

Fixed in kernel 3.7, available in Fedora 19.