[1266874882.222047] BUG: soft lockup - CPU#1 stuck for 0s! [swapper:0]
[1266874882.226820] Modules linked in: tun nls_iso8859_1 nls_cp437 vfat fat usb_storage binfmt_misc ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack ipt_REJECT xt_tcpudp ppdev bridge stp bnep kvm_intel kvm nfsd exportfs nfs lockd nfs_acl auth_rpcgss sunrpc joydev snd_hda_codec_atihdmi snd_hda_codec_idt snd_hda_intel snd_hda_codec iptable_filter ip_tables snd_hwdep snd_pcm_oss snd_mixer_oss uvcvideo snd_pcm snd_seq_dummy snd_seq_oss snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq sdhci_pci snd_timer dell_wmi sdhci dell_laptop videodev btusb snd_seq_device v4l1_compat lib80211_crypt_tkip psmouse lp parport wl(P) dcdbas x_tables fglrx(P) lib80211 serio_raw led_class snd soundcore snd_page_alloc ohci1394 usbhid ieee1394 r8169 mii intel_agp agpgart video output
[1266874882.226856] 
[1266874882.226859] Pid: 0, comm: swapper Tainted: P           (2.6.31-14-generic #48-Ubuntu) Studio 1558
[1266874882.226861] EIP: 0060:[<c013a9a0>] EFLAGS: 00000246 CPU: 1
[1266874882.226866] EIP is at find_busiest_group+0x490/0x6e0
[1266874882.226868] EAX: 02075000 EBX: 00000001 ECX: c08145c0 EDX: c28895c0
[1266874882.226870] ESI: f705e480 EDI: 00000000 EBP: f7083dec ESP: f7083d40
[1266874882.226872]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
[1266874882.226873] CR0: 8005003b CR2: 00000000 CR3: 0081a000 CR4: 000026d0
[1266874882.226875] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000
[1266874882.226877] DR6: ffff0ff0 DR7: 00000400
[1266874882.226878] Call Trace: