Additional info:
reporter:       libreport-2.1.12
BUG: unable to handle kernel NULL pointer dereference at           (null)
IP: [<ffffffffa018d0e6>] nvc0_vm_map_sg+0x96/0x100 [nouveau]
PGD 12ca9b067 PUD 1204ea067 PMD 0 
Oops: 0000 [#1] SMP 
Modules linked in: fuse ebtable_nat nf_conntrack_netbios_ns nf_conntrack_broadcast ipt_MASQUERADE ip6table_nat nf_nat_ipv6 ip6table_mangle ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 iptable_nat nf_nat_ipv4 nf_nat iptable_mangle nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack ebtable_filter ebtables ip6table_filter bnep ip6_tables uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core videodev media mperf coretemp kvm_intel kvm crc32_pclmul arc4 snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_intel ath9k snd_hda_codec ath9k_common ath9k_hw snd_hwdep snd_seq snd_seq_device ath snd_pcm mac80211 snd_page_alloc snd_timer cfg80211 iTCO_wdt iTCO_vendor_support asus_nb_wmi btusb asus_wmi sparse_keymap bluetooth rfkill snd lpc_ich mfd_core i2c_i801 atl1c crc32c_intel soundcore ghash_clmulni_intel joydev microcode serio_raw uinput nouveau i915 mxm_wmi ttm i2c_algo_bit drm_kms_helper drm i2c_core video wmi
CPU: 2 PID: 3335 Comm: Xorg Not tainted 3.10.4-300.fc19.x86_64 #1
Hardware name: ASUSTeK Computer Inc. N43SL/N43SL, BIOS N43SL.414 11/17/2011
task: ffff880121d01e80 ti: ffff880121fe0000 task.ti: ffff880121fe0000
RIP: 0010:[<ffffffffa018d0e6>]  [<ffffffffa018d0e6>] nvc0_vm_map_sg+0x96/0x100 [nouveau]
RSP: 0018:ffff880121fe1628  EFLAGS: 00010206
RAX: 0000000000000000 RBX: 0000000000000005 RCX: 0000000500000000
RDX: 00000000000002ff RSI: 0000000000000003 RDI: ffff880147352fc0
RBP: ffff880121fe1678 R08: 0000000000000300 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000008000 R12: 0000000000001cf0
R13: ffff88014720d140 R14: ffff880147352fc0 R15: 0000000000000000
FS:  00007fec6b14a980(0000) GS:ffff88014fa40000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000012f8d1000 CR4: 00000000000407e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Stack:
 ffff88012f875640 00001cf42f875640 0000000000001800 0000000000000000
 0000000500000000 0000000000000300 ffff880146c91000 ffff88014720d140
 ffff88012f875640 ffff88012f875600 ffff880121fe16d0 ffffffffa018b02c
Call Trace:
 [<ffffffffa018b02c>] nouveau_vm_map_sg+0xdc/0x150 [nouveau]
 [<ffffffffa01e52a1>] nouveau_vma_getmap.isra.11+0x61/0x90 [nouveau]
 [<ffffffffa01e534a>] nouveau_bo_move_m2mf.isra.12+0x7a/0x130 [nouveau]
 [<ffffffffa018ac7d>] ? nouveau_vm_map_at+0x15d/0x1d0 [nouveau]
 [<ffffffffa01e5c4c>] nouveau_bo_move+0x9c/0x430 [nouveau]
 [<ffffffffa018ad03>] ? nouveau_vm_map+0x13/0x20 [nouveau]
 [<ffffffffa0076d3d>] ttm_bo_handle_move_mem+0x25d/0x600 [ttm]
 [<ffffffffa0077719>] ? ttm_bo_mem_space+0x179/0x360 [ttm]
 [<ffffffffa0077ecf>] ttm_bo_move_buffer+0x11f/0x140 [ttm]
 [<ffffffff812e6d6f>] ? idr_get_empty_slot+0x16f/0x3c0
 [<ffffffffa0077f8a>] ttm_bo_validate+0x9a/0x110 [ttm]
 [<ffffffffa01e658a>] nouveau_bo_pin+0x9a/0x100 [nouveau]
 [<ffffffffa01e67bc>] ? nouveau_bo_rd32+0x2c/0x30 [nouveau]
 [<ffffffffa020a0ef>] nv50_crtc_mode_set+0xff/0x410 [nouveau]
 [<ffffffffa001cecc>] drm_crtc_helper_set_mode+0x27c/0x450 [drm_kms_helper]
 [<ffffffffa001e57e>] drm_crtc_helper_set_config+0xa2e/0xb50 [drm_kms_helper]
 [<ffffffffa0040b23>] drm_mode_set_config_internal+0x23/0x50 [drm]
 [<ffffffffa0043467>] drm_mode_setcrtc+0xf7/0x650 [drm]
 [<ffffffffa01f103b>] ? nouveau_user_framebuffer_create+0x6b/0xb0 [nouveau]
 [<ffffffff81646402>] ? mutex_lock+0x12/0x30
 [<ffffffffa00342c2>] drm_ioctl+0x532/0x670 [drm]
 [<ffffffff811a9435>] do_vfs_ioctl+0x305/0x520
 [<ffffffff8128ab5e>] ? file_has_perm+0x8e/0xa0
 [<ffffffff811a96d1>] SyS_ioctl+0x81/0xa0
 [<ffffffff81651919>] system_call_fastpath+0x16/0x1b
Code: 45 d0 48 8d 04 d5 08 00 00 00 48 89 45 c0 41 8d 44 24 04 89 45 bc eb 0c 0f 1f 44 00 00 48 8b 45 b0 8b 70 30 48 8b 45 c8 4c 89 f7 <4a> 8b 14 38 48 c1 ea 08 49 89 d5 48 83 ca 03 49 83 cd 01 83 e6 
RIP  [<ffffffffa018d0e6>] nvc0_vm_map_sg+0x96/0x100 [nouveau]
 RSP <ffff880121fe1628>