BUG: scheduling while atomic: Xorg/1699/0x10010100
Modules linked in: aes_i586 aes_generic binfmt_misc ppdev bridge stp bnep vboxnetadp vboxnetflt vboxdrv ipt_REJECT ipt_LOG xt_limit xt_tcpudp xt_state ipt_addrtype ip6table_filter ip6_tables snd_hda_codec_idt snd_hda_intel snd_hda_codec snd_hwdep snd_pcm_oss nf_nat_irc snd_mixer_oss nf_conntrack_irc snd_pcm nf_nat_ftp snd_seq_dummy nf_nat snd_seq_oss nf_conntrack_ipv4 snd_seq_midi snd_rawmidi snd_seq_midi_event nf_defrag_ipv4 snd_seq nf_conntrack_ftp arc4 snd_timer zaurus ecb nf_conntrack snd_seq_device iwlagn iptable_filter dell_wmi cdc_ether snd iwlcore sdhci_pci soundcore ip_tables usbnet lp parport mac80211 sdhci psmouse btusb cdc_wdm cdc_acm serio_raw dell_laptop dcdbas nvidia(P) snd_page_alloc led_class mii ricoh_mmc x_tables joydev cfg80211 dm_raid45 xor usbhid ohci1394 ieee1394 intel_agp agpgart e1000e video output

Pid: 1699, comm: Xorg Tainted: P           (2.6.31-14-generic #48-Ubuntu) Latitude E6400                  
EIP: 0060:[<c014b365>] EFLAGS: 00003206 CPU: 1
EIP is at __do_softirq+0x45/0x1a0
EAX: 00000001 EBX: 00000042 ECX: fffff000 EDX: c080fb60
ESI: 00000020 EDI: 09728d98 EBP: f6363f80 ESP: f6363f40
 DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
CR0: 8005003b CR2: b75ad000 CR3: 3568d000 CR4: 000006d0
DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000
DR6: ffff0ff0 DR7: 00000400
Call Trace:
 [<c015ff63>] ? hrtimer_interrupt+0x183/0x210
 [<c014b4fd>] do_softirq+0x3d/0x40
 [<c014b63d>] irq_exit+0x5d/0x70
 [<c011dcf7>] smp_apic_timer_interrupt+0x57/0x90
 [<c0103d71>] apic_timer_interrupt+0x31/0x40