Here's another, without the "M" taint flag:

[45822.947152] Bad page state in process 'vino-server'
[45822.947155] page:c13136bc flags:0x40000000 mapping:00000000 mapcount:-1 count:0
[45822.959359] Trying to fix it up, but a reboot is needed
[45822.959360] Backtrace:
[45823.983400] skb_over_panic: text:f89503b7 len:481 put:481 head:00000000 data:00000000 tail:0x1e1 end:0x0 dev:<NULL>
[45823.993889] ------------[ cut here ]------------
[45823.997841] kernel BUG at /build/buildd/linux-2.6.27/net/core/skbuff.c:128!
[45823.997841] invalid opcode: 0000 [#1] SMP
[45823.997841] Modules linked in: xt_multiport binfmt_misc rfcomm bridge stp bnep sco l2cap bluetooth vboxnetflt vboxdrv tun des_generic cbc crypto_blkcipher autofs4 video output wmi battery pci_slot container sbs sbshc rpcsec_gss_krb5 nfsd auth_rpcgss exportfs nfs lockd nfs_acl sunrpc nf_conntrack_ipv6 ip6t_hl ipt_LOG xt_limit ipt_REJECT xt_tcpudp xt_state ipt_addrtype ip6table_filter ip6_tables nf_nat_irc nf_conntrack_irc nf_nat_ftp nf_nat nf_conntrack_ipv4 nf_conntrack_ftp nf_conntrack iptable_filter ip_tables x_tables ipv6 ext4dev jbd2 crc16 ac it87 hwmon_vid eeprom lp snd_emu10k1_synth tuner_simple tuner_types tea5767 tuner msp3400 snd_emux_synth snd_seq_virmidi snd_seq_midi_emul snd_emu10k1 bttv snd_hda_intel snd_bt87x snd_ac97_codec ir_common ac97_bus snd_util_mem i2c_algo_bit snd_pcm_oss snd_usb_lib snd_mixer_oss v4l2_common snd_seq_dummy snd_pcm snd_hwdep snd_seq_oss videobuf_dma_sg snd_seq_midi snd_rawmidi uvcvideo videobuf_core snd_seq_midi_event snd_seq compat_ioctl32 ppdev psmouse btcx_risc snd_timer snd_seq_device emu10k1_gp nvidia(P) i2c_nforce2 videodev snd agpgart tveeprom serio_raw gameport soundcore snd_page_alloc v4l1_compat pcspkr k8temp button i2c_core parport_pc parport evdev ext3 jbd mbcache sr_mod cdrom sg sd_mod crc_t10dif ata_generic pata_acpi pata_amd sata_nv ohci1394 libata ohci_hcd scsi_mod ieee1394 forcedeth dock ehci_hcd usbcore raid10 raid456 async_xor async_memcpy async_tx xor raid1 raid0 multipath linear md_mod dm_mirror dm_log dm_snapshot dm_mod thermal processor fan fbcon tileblit font bitblit softcursor fuse
[45823.997841]
[45823.997841] Pid: 0, comm: swapper Tainted: P    B     (2.6.27-12-generic #1)
[45823.997841] EIP: 0060:[<c02ebe01>] EFLAGS: 00010286 CPU: 0
[45823.997841] EIP is at skb_put+0x91/0xa0
[45823.997841] EAX: 0000007a EBX: 000001e1 ECX: e7a9ff2c EDX: 00000046
[45823.997841] ESI: d5df7840 EDI: f78c4480 EBP: c04a9e88 ESP: c04a9e60
[45823.997841]  DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068
[45823.997841] Process swapper (pid: 0, ti=c04a8000 task=c0470340 task.ti=c04a8000)
[45823.997841] Stack: c044d69c f89503b7 000001e1 000001e1 00000000 00000000 000001e1 00000000
[45823.997841]        c043a1a8 000001e1 c04a9eb4 f89503b7 c04a9ec0 00000040 f78c4000 200201e1
[45823.997841]        00000000 00000000 f78c4480 00000002 f78c4000 c04a9ee4 f895449f f6e0fe00
[45823.997841] Call Trace:
[45823.997841]  [<f89503b7>] ? nv_rx_process_optimized+0x67/0x260 [forcedeth]
[45823.997841]  [<f89503b7>] ? nv_rx_process_optimized+0x67/0x260 [forcedeth]
[45823.997841]  [<f895449f>] ? nv_nic_irq_optimized+0x9f/0x2c0 [forcedeth]
[45823.997841]  [<c0177121>] ? handle_IRQ_event+0x41/0x80
[45823.997841]  [<c01789c4>] ? handle_fasteoi_irq+0x74/0xe0
[45823.997841]  [<c0153e1c>] ? tick_nohz_stop_idle+0x5c/0x70
[45823.997841]  [<c0106c15>] ? do_IRQ+0x45/0x80
[45823.997841]  [<c0105003>] ? common_interrupt+0x23/0x30
[45823.997841]  [<c011ac15>] ? native_safe_halt+0x5/0x10
[45823.997841]  [<c010aafd>] ? default_idle+0x5d/0x60
[45823.997841]  [<c010ab4b>] ? c1e_idle+0x4b/0x130
[45823.997841]  [<c010288d>] ? cpu_idle+0x7d/0x140
[45823.997841]  [<c036fec3>] ? rest_init+0x53/0x60
[45823.997841]  =======================
[45823.997841] Code: 00 00 89 44 24 14 8b 81 a8 00 00 00 89 5c 24 0c 89 44 24 10 8b 41 50 89 54 24 04 c7 04 24 9c d6 44 c0 89 44 24 08 e8 a8 17 09 00 <0f> 0b eb fe b8 a8 a1 43 c0 eb ae 8d 74 26 00 55 89 e5 57 56 53
[45823.997841] EIP: [<c02ebe01>] skb_put+0x91/0xa0 SS:ESP 0068:c04a9e60
[45824.320414] Kernel panic - not syncing: Fatal exception in interrupt

Does the fact that this bug has not been touched in 3 months mean there is no desire to fix it?