Here's another one:
Apr  2 20:50:27 aethereal kernel: [91025.400730] kvm: 15182: cpu0 unhandled wrms
r: 0xc0010117 data 0
Apr  2 20:50:27 aethereal kernel: [91025.400809] kvm: 15182: cpu0 unhandled rdms
r: 0xc0010117
Apr  2 20:50:27 aethereal kernel: [91025.400878] kvm: 15182: cpu0 unhandled wrms
r: 0xc0010117 data 0
Apr  2 20:50:27 aethereal kernel: [91025.400960] kvm: 15182: cpu0 unhandled rdms
r: 0xc0010117
Apr  2 20:50:27 aethereal kernel: [91025.402454] kvm: 15182: cpu0 unhandled wrms
r: 0xc0010117 data 0
Apr  2 20:50:27 aethereal kernel: [91025.958373] general protection fault: 0000
[#3] SMP
Apr  2 20:50:27 aethereal kernel: [91025.958381] last sysfs file: /sys/devices/p
ci0000:00/0000:00:1c.1/0000:0c:00.0/rfkill/rfkill0/state
Apr  2 20:50:27 aethereal kernel: [91025.958385] CPU 0
Apr  2 20:50:27 aethereal kernel: [91025.958388] Modules linked in: ppp_async cr
c_ccitt binfmt_misc i915 drm ppdev bridge stp bnep input_polldev kvm_intel kvm s
nd_hwdep sbp2 lp parport snd_hda_intel snd_pcm_oss snd_mixer_oss arc4 snd_pcm ec
b snd_seq_dummy pata_pcmcia snd_seq_oss iwlagn iwlcore snd_seq_midi snd_rawmidi
snd_seq_midi_event snd_seq led_class pcmcia snd_timer snd_seq_device mac80211 sn
d yenta_socket soundcore psmouse rsrc_nonstatic pcmcia_core snd_page_alloc cfg80
211 serio_raw pcspkr dcdbas btusb iTCO_wdt iTCO_vendor_support joydev sha256_gen
eric aes_x86_64 aes_generic cbc dm_crypt fbcon tileblit font bitblit softcursor
squashfs unionfs nls_iso8859_1 nls_cp437 vfat fat usbhid usb_storage ohci1394 ie
ee1394 tg3 video output intel_agp
Apr  2 20:50:27 aethereal kernel: [91025.958469] Pid: 15183, comm: kvm Tainted:
G      D W  2.6.28-11-generic #38-Ubuntu
Apr  2 20:50:27 aethereal kernel: [91025.958472] RIP: 0010:[<ffffffff8041c2db>]
 [<ffffffff8041c2db>] rb_next+0x2b/0x60
Apr  2 20:50:27 aethereal kernel: [91025.958483] RSP: 0018:ffff88010d8e3c08  EFL
AGS: 00010202
Apr  2 20:50:27 aethereal kernel: [91025.958486] RAX: 39eac016a66d81b9 RBX: ffff
c200060b1000 RCX: ffff88011dd61b18
Apr  2 20:50:27 aethereal kernel: [91025.958489] RDX: 39eac016a66d81b9 RSI: ffff88007f6fc499 RDI: ffff88011dd61b18
Apr  2 20:50:27 aethereal kernel: [91025.958493] RBP: ffff88010d8e3c08 R08: 00000000ffffffff R09: 000000000000013e
Apr  2 20:50:27 aethereal kernel: [91025.958496] R10: 0000000000000000 R11: 0000000000000246 R12: ffffc20000000000
Apr  2 20:50:27 aethereal kernel: [91025.958499] R13: ffffffffffffffff R14: ffffe1ffffffffff R15: 0000000000002000
Apr  2 20:50:27 aethereal kernel: [91025.958503] FS:  00007fb3eb971950(0000) GS:ffffffff80aa3000(0000) knlGS:0000000000000000
Apr  2 20:50:27 aethereal kernel: [91025.958507] CS:  0010 DS: 002b ES: 002b CR0: 000000008005003b
Apr  2 20:50:27 aethereal kernel: [91025.958510] CR2: 0000000003e59000 CR3: 000000010d10c000 CR4: 00000000000026a0
Apr  2 20:50:27 aethereal kernel: [91025.958514] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
Apr  2 20:50:27 aethereal kernel: [91025.958517] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Apr  2 20:50:27 aethereal kernel: [91025.958521] Process kvm (pid: 15183, threadinfo ffff88010d8e2000, task ffff880081769660)
Apr  2 20:50:27 aethereal kernel: [91025.958524] Stack:
Apr  2 20:50:27 aethereal kernel: [91025.958526]  ffff88010d8e3c98 ffffffff802d0d2d ffff88010d8e3c28 0000000000001fff
Apr  2 20:50:27 aethereal kernel: [91025.958532]  0000000000000001 ffff88010b84b000 000000000d8e3c78 ffff88010b84b000
Apr  2 20:50:27 aethereal kernel: [91025.958539]  ffffc20000001fff ffffc20000002000 0000000000000000 0000000000000282
Apr  2 20:50:27 aethereal kernel: [91025.958546] Call Trace:
Apr  2 20:50:27 aethereal kernel: [91025.958549]  [<ffffffff802d0d2d>] alloc_vmap_area+0x13d/0x2c0
Apr  2 20:50:27 aethereal kernel: [91025.958556]  [<ffffffff802d13d9>] __get_vm_area_node+0xc9/0x1c0
Apr  2 20:50:27 aethereal kernel: [91025.958562]  [<ffffffffa03d2e4b>] ? msr_io+0x8b/0x160 [kvm]
Apr  2 20:50:27 aethereal kernel: [91025.958581]  [<ffffffff802d1728>] __vmalloc_node+0x88/0xb0
Apr  2 20:50:27 aethereal kernel: [91025.958586]  [<ffffffffa03d2e4b>] ? msr_io+0x8b/0x160 [kvm]
Apr  2 20:50:27 aethereal kernel: [91025.958603]  [<ffffffffa03d00e0>] ? kvm_get_msr+0x0/0x20 [kvm]
Apr  2 20:50:27 aethereal kernel: [91025.958620]  [<ffffffff802d1901>] vmalloc+0x21/0x30
Apr  2 20:50:27 aethereal kernel: [91025.958624]  [<ffffffffa03d2e4b>] msr_io+0x8b/0x160 [kvm]
Apr  2 20:50:27 aethereal kernel: [91025.958641]  [<ffffffffa03d3257>] kvm_arch_vcpu_ioctl+0x337/0x470 [kvm]
Apr  2 20:50:27 aethereal kernel: [91025.958657]  [<ffffffffa03cc3d5>] kvm_vcpu_ioctl+0x135/0x5a0 [kvm]
Apr  2 20:50:27 aethereal kernel: [91025.958673]  [<ffffffff8026ca25>] ? hrtimer_start_range_ns+0xf5/0x1d0
Apr  2 20:50:27 aethereal kernel: [91025.958679]  [<ffffffff8026b650>] ? __remove_hrtimer+0x40/0xc0
Apr  2 20:50:27 aethereal kernel: [91025.958690]  [<ffffffff802f6685>] do_vfs_ioctl+0x75/0x230
Apr  2 20:50:27 aethereal kernel: [91025.958696]  [<ffffffff802f68d9>] sys_ioctl+0x99/0xa0
Apr  2 20:50:27 aethereal kernel: [91025.958701]  [<ffffffff8021253a>] system_call_fastpath+0x16/0x1b
Apr  2 20:50:27 aethereal kernel: [91025.958706] Code: 55 48 8b 37 31 d2 48 89 f9 48 89 e5 48 89 f0 48 83 e0 fc 48 39 c7 74 1c 48 8b 57 08 48 85 d2 75 0a eb 230f 1f 44 00 00 48 89 c2 <48> 8b 42 10 48 85 c0 75 f4 48 89 d0 c9 c3 0f 1f 80 0000 00 00
Apr  2 20:50:27 aethereal kernel: [91025.958760] RIP  [<ffffffff8041c2db>] rb_next+0x2b/0x60
Apr  2 20:50:27 aethereal kernel: [91025.958766]  RSP <ffff88010d8e3c08>
Apr  2 20:50:27 aethereal kernel: [91025.958769] ---[ end trace 7d5ea0e243099460 ]---