Some feedback, just tried it in Fedora 9...

(BTW, in Fedora 9 'uname -r' adds a "-tip" component at the end of the
uname string which messes up loading modules, etc, and it is not
anywhere else to be seen - where is that coming from??)

Boots fine but does not last long:

------------[ cut here ]------------
WARNING: at lib/list_debug.c:30 __list_add+0x44/0x5c()
Hardware name: P5K/EPU
list_add corruption. prev->next should be next (f6042ab0), but was
(null). (prev=f415a670).
Modules linked in: fuse ip6table_filter ip6_tables iptable_raw
xt_comment xt_recent xt_policy ipt_ULOG ipt_TTL ipt_ttl ipt_REDIRECT
ipt_NETMAP ipt_MASQUERADE ipt_LOG ipt_ECN ipt_ecn ipt_CLUSTERIP ipt_ah
ipt_addrtype nf_nat_tftp nf_nat_snmp_basic nf_nat_sip nf_nat_pptp
nf_nat_proto_gre nf_nat_irc nf_nat_h323 nf_nat_ftp nf_nat_amanda ts_kmp
nf_conntrack_amanda nf_conntrack_tftp nf_conntrack_sip
nf_conntrack_proto_sctp nf_conntrack_pptp nf_conntrack_proto_gre
nf_conntrack_netlink nf_conntrack_netbios_ns nf_conntrack_irc
nf_conntrack_h323 nf_conntrack_ftp xt_tcpmss xt_pkttype xt_physdev
xt_owner xt_NFQUEUE xt_NFLOG nfnetlink_log xt_multiport xt_MARK xt_mark
xt_mac xt_limit xt_length xt_iprange xt_helper xt_hashlimit xt_DSCP
xt_dscp xt_dccp xt_CONNMARK xt_connmark xt_CLASSIFY iptable_nat nf_nat
iptable_mangle nfnetlink autofs4 coretemp w83627ehf hwmon_vid hwmon nfs
lockd nfs_acl auth_rpcgss sunrpc cpufreq_ondemand acpi_cpufreq
dm_multipath radeon drm ipv6 snd_hda_codec_realtek snd_hda_intel
snd_hda_codec snd_hwdep snd_ice1712 snd_ice17xx_ak4xxx snd_ak4xxx_adda
pcspkr snd_cs8427 snd_ac97_codec serio_raw i2c_i801 ac97_bus snd_i2c
i2c_core iTCO_wdt ohci1394 snd_mpu401_uart iTCO_vendor_support
snd_rawmidi snd_seq_dummy snd_seq_oss snd_seq_midi_event snd_seq
snd_seq_device snd_pcm_oss snd_mixer_oss snd_pcm joydev snd_timer sky2
snd soundcore snd_page_alloc [last unloaded: microcode]
Pid: 5844, comm: slogin Not tainted
2.6.29-0.0.rc6.rt2.1.rc6.fc9.ccrma.i686.rtPAE-tip #1
Call Trace:
 [<c0438765>] warn_slowpath+0x71/0xa8
 [<c048183a>] ? cpupri_set+0xdd/0xfb
 [<c042ace7>] ? update_curr+0x15f/0x167
 [<c0429dbd>] ? resched_task+0x33/0x6b
 [<c042ace7>] ? update_curr+0x15f/0x167
 [<c0543b28>] __list_add+0x44/0x5c
 [<c0440ef1>] internal_add_timer+0x88/0x8c
 [<c044159e>] __mod_timer+0xcc/0xde
 [<c04415c9>] mod_timer+0x19/0x1f
 [<c04415e3>] add_timer+0x14/0x16
 [<c068686e>] __nf_ct_refresh_acct+0x5b/0xdb
 [<c068a095>] tcp_packet+0xa78/0xa9f
 [<c06f0018>] ? topology_sysfs_init+0xf/0x51
 [<c06f263d>] ? __spin_lock_irqsave+0x30/0x39
 [<c0685cb3>] ? __nf_conntrack_find+0x64/0x7f
 [<c0687161>] nf_conntrack_in+0x394/0x407
 [<c06c003a>] ipv4_conntrack_local+0x32/0x3c
 [<c0684d83>] nf_iterate+0x2f/0x62
 [<c0692b30>] ? dst_output+0x0/0xb
 [<c0684ed7>] nf_hook_slow+0x42/0x9f
 [<c0692b30>] ? dst_output+0x0/0xb
 [<c06942c0>] __ip_local_out+0x87/0x91
 [<c0692b30>] ? dst_output+0x0/0xb
 [<c06942d5>] ip_local_out+0xb/0x1b
 [<c0694abe>] ip_queue_xmit+0x2b7/0x331
 [<c04b6dbb>] ? pollwake+0x0/0x55
 [<c042ace7>] ? update_curr+0x15f/0x167
 [<c06a3be9>] tcp_transmit_skb+0x5cb/0x602
 [<c06a5e35>] tcp_write_xmit+0x785/0x853
 [<c045716e>] ? rt_spin_lock_fastlock+0x27/0x5e
 [<c06f1fae>] ? rt_spin_lock+0xd/0xf
 [<c04a5cf0>] ? __kmalloc+0xb6/0xeb
 [<c06a5f50>] __tcp_push_pending_frames+0x21/0x56
 [<c0699cfd>] tcp_push+0x84/0x8a
 [<c069bd22>] tcp_sendmsg+0x6b0/0x75a
 [<c0661511>] __sock_sendmsg+0x45/0x4e
 [<c06615e8>] sock_aio_write+0xce/0xdb
 [<c0513e80>] ? inode_has_perm+0x58/0x62
 [<c04aab08>] do_sync_write+0xab/0xe9
 [<c05140ca>] ? file_has_perm+0x80/0x89
 [<c0449f77>] ? autoremove_wake_function+0x0/0x33
 [<c051063a>] ? security_file_permission+0xf/0x11
 [<c04ab336>] vfs_write+0x95/0xdf
 [<c04ab419>] sys_write+0x3b/0x60
 [<c0408bab>] sysenter_do_call+0x12/0x2c
---[ end trace 934e4b7ba06b93c0 ]---

Nfs/network stops working -> I have to reboot...
I'm attaching the full dmesg output of the test machine. 

-- Fernando