BUG: scheduling while atomic: Xorg/1112/0x00000001
Modules linked in: lib80211_crypt_tkip wl(P) lib80211 cbc cryptd aes_x86_64 aes_generic ecb binfmt_misc ppdev uvcvideo videodev v4l1_compat v4l2_compat_ioctl32 lp parport sdhci_pci sdhci dm_crypt joydev snd_hda_codec_conexant snd_hda_intel snd_hda_codec snd_hwdep mac80211 snd_pcm_oss snd_mixer_oss snd_pcm psmouse snd_seq_dummy cfg80211 snd_seq_oss snd_seq_midi serio_raw led_class snd_rawmidi snd_seq_midi_event snd_seq snd_timer snd_seq_device iptable_filter snd ip_tables x_tables soundcore snd_page_alloc fbcon tileblit font bitblit softcursor usbhid ohci1394 ieee1394 sky2 i915 drm i2c_algo_bit video output intel_agp [last unloaded: ssb]
Pid: 1112, comm: Xorg Tainted: P      D    2.6.31-14-generic #48-Ubuntu
Call Trace:
 [<ffffffff8104f0c1>] __schedule_bug+0x61/0x70
 [<ffffffff81527248>] thread_return+0x197/0x37f
 [<ffffffff81012bae>] ? apic_timer_interrupt+0xe/0x20
 [<ffffffff81049cdb>] ? mutex_spin_on_owner+0x6b/0xa0
 [<ffffffff81528007>] __mutex_lock_slowpath+0xd7/0x160
 [<ffffffff81110e43>] ? add_partial+0x53/0x90
 [<ffffffff81527f06>] mutex_lock+0x26/0x50
 [<ffffffffa0028eb9>] drm_gem_vm_close+0x29/0x50 [drm]
 [<ffffffff810faade>] remove_vma+0x2e/0x90
 [<ffffffff810fbde8>] exit_mmap+0xf8/0x190
 [<ffffffff8105c708>] mmput+0x38/0xd0
 [<ffffffff8106173e>] exit_mm+0x10e/0x150
 [<ffffffff815292f0>] ? _spin_lock_irq+0x10/0x20
 [<ffffffff810619e5>] do_exit+0x125/0x360
 [<ffffffff8152a57b>] oops_end+0xab/0xf0
 [<ffffffff81015ff6>] die+0x56/0x90
 [<ffffffff8152a0d2>] do_general_protection+0x152/0x160
 [<ffffffff81529895>] general_protection+0x25/0x30
 [<ffffffffa0026436>] ? drm_clflush_pages+0x76/0xb0 [drm]
 [<ffffffff811310e0>] ? d_free+0x50/0x60
 [<ffffffffa0060234>] i915_gem_clflush_object+0x24/0x30 [i915]
 [<ffffffffa0062ba8>] i915_gem_object_set_to_cpu_domain+0xf8/0x120 [i915]
 [<ffffffffa0062d5e>] i915_gem_object_unbind+0x4e/0x160 [i915]
 [<ffffffffa0062ec7>] i915_gem_free_object+0x57/0xf0 [i915]
 [<ffffffffa0028d0b>] drm_gem_object_free+0x2b/0x60 [drm]
 [<ffffffffa0028ce0>] ? drm_gem_object_free+0x0/0x60 [drm]
 [<ffffffff812755b7>] kref_put+0x37/0x70
 [<ffffffffa0028f69>] drm_gem_handle_delete+0x89/0xd0 [drm]
 [<ffffffffa0028fda>] drm_gem_close_ioctl+0x2a/0x30 [drm]
 [<ffffffffa0027cae>] drm_ioctl+0x17e/0x3a0 [drm]
 [<ffffffffa0028fb0>] ? drm_gem_close_ioctl+0x0/0x30 [drm]
 [<ffffffff810e1c4b>] ? free_hot_page+0xb/0x10
 [<ffffffff810e1c75>] ? __free_pages+0x25/0x30
 [<ffffffff81113b90>] ? __free_slab+0xc0/0x170
 [<ffffffff81113c73>] ? discard_slab+0x33/0x50
 [<ffffffff8112de5c>] vfs_ioctl+0x7c/0xa0
 [<ffffffff8112e429>] do_vfs_ioctl+0x79/0x370
 [<ffffffff81278246>] ? __up_write+0xd6/0x140
 [<ffffffff8112e7a1>] sys_ioctl+0x81/0xa0
 [<ffffffff8107cf19>] ? up_write+0x9/0x10
 [<ffffffff81012002>] system_call_fastpath+0x16/0x1b