Hi,

at a KVM running a x86 stable Gentoo Linux I do get with v3.17-7671-gd0ca475

n22kvmclone linux # modprobe nf_reject_ipv4
modprobe: ERROR: could not insert 'nf_reject_ipv4': Unknown symbol in module, or unknown parameter (see dmesg)

n22kvmclone linux # tail -n 7 /var/log/messages
Oct 12 18:50:58 n22kvmclone sudo: pam_unix(sudo:session): session closed for user root
Oct 12 18:51:10 n22kvmclone kernel: nf_reject_ipv4: Unknown symbol lock_is_held (err 0)
Oct 12 18:51:10 n22kvmclone kernel: nf_reject_ipv4: Unknown symbol rcu_read_lock_bh_held (err 0)
Oct 12 18:51:10 n22kvmclone kernel: nf_reject_ipv4: Unknown symbol ip_local_out_sk (err 0)
Oct 12 18:51:10 n22kvmclone kernel: nf_reject_ipv4: Unknown symbol debug_lockdep_rcu_enabled (err 0)
Oct 12 18:51:10 n22kvmclone kernel: nf_reject_ipv4: Unknown symbol rcu_is_watching (err 0)
Oct 12 18:51:10 n22kvmclone kernel: nf_reject_ipv4: Unknown symbol rcu_lock_map (err 0)

-- 
Toralf
pgp key: 0076 E94E