Bug 850848

libreport version: 2.0.10
cmdline:        BOOT_IMAGE=/boot/vmlinuz-3.4.4-4.fc16.x86_64 root=/dev/mapper/vg_aj-lv_root ro rd.md=0 rd.dm=0 KEYTABLE=us quiet SYSFONT=latarcyrheb-sun16 rd.lvm.lv=vg_aj/lv_root rhgb rd.luks=0 rd.lvm.lv=vg_aj/lv_swap LANG=en_US.UTF-8

backtrace:
:[144006.647188] WARNING: at drivers/gpu/drm/i915/i915_drv.c:398 gen6_gt_check_fifodbg+0x41/0x60 [i915]()
:[144006.647191] Hardware name:         
:[144006.647193] MMIO read or write has been dropped 3
:[144006.647195] Modules linked in: bluetooth rfkill tcp_lp ppdev parport_pc lp parport fuse ip6table_filter ip6_tables ebtable_nat ebtables lockd bridge stp llc be2iscsi iscsi_boot_sysfs bnx2i cnic uio cxgb4i cxgb4 cxgb3i libcxgbi cxgb3 mdio tpm_bios ib_iser rdma_cm ib_cm iw_cm ib_sa ib_mad ib_core ib_addr iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi w83627ehf hwmon_vid raid1 snd_hda_codec_hdmi snd_hda_codec_realtek joydev skge 8139too 8139cp mii snd_hda_intel shpchp snd_hda_codec snd_hwdep snd_seq snd_seq_device snd_pcm snd_timer snd soundcore e1000e snd_page_alloc i2c_i801 iTCO_wdt iTCO_vendor_support serio_raw coretemp microcode vhost_net macvtap macvlan tun kvm_intel kvm uinput sunrpc crc32c_intel ghash_clmulni_intel i915 drm_kms_helper drm i2c_algo_bit i2c_core video [last unloaded: scsi_wait_scan]
:[144006.647253] Pid: 4761, comm: Xorg Tainted: G        W    3.4.4-4.fc16.x86_64 #1
:[144006.647255] Call Trace:
:[144006.647263]  [<ffffffff8105807f>] warn_slowpath_common+0x7f/0xc0
:[144006.647268]  [<ffffffff81058176>] warn_slowpath_fmt+0x46/0x50
:[144006.647280]  [<ffffffffa00772d1>] gen6_gt_check_fifodbg+0x41/0x60 [i915]
:[144006.647291]  [<ffffffffa007782a>] __gen6_gt_force_wake_put+0x1a/0x20 [i915]
:[144006.647303]  [<ffffffffa0077897>] gen6_gt_force_wake_put+0x47/0x60 [i915]
:[144006.647320]  [<ffffffffa00b5e79>] gen6_ring_put_irq+0x79/0x90 [i915]
:[144006.647335]  [<ffffffffa00b5ee8>] gen6_render_ring_put_irq+0x18/0x20 [i915]
:[144006.647349]  [<ffffffffa0088cba>] i915_wait_request+0x18a/0x4e0 [i915]
:[144006.647354]  [<ffffffff8107a4e0>] ? remove_wait_queue+0x50/0x50
:[144006.647366]  [<ffffffffa0089047>] i915_gem_object_wait_rendering+0x37/0x40 [i915]
:[144006.647379]  [<ffffffffa008fc7a>] i915_gem_do_execbuffer+0xaca/0x1610 [i915]
:[144006.647383]  [<ffffffff812cbec4>] ? timerqueue_add+0x74/0xc0
:[144006.647395]  [<ffffffffa0090cbe>] i915_gem_execbuffer2+0xae/0x290 [i915]
:[144006.647407]  [<ffffffffa00213cc>] drm_ioctl+0x47c/0x540 [drm]
:[144006.647411]  [<ffffffff810698bf>] ? recalc_sigpending+0x1f/0x60
:[144006.647424]  [<ffffffffa0090c10>] ? i915_gem_execbuffer+0x450/0x450 [i915]
:[144006.647428]  [<ffffffff810143f4>] ? do_signal+0x194/0x5d0
:[144006.647432]  [<ffffffff8101dce2>] ? fpu_finit+0x22/0x40
:[144006.647436]  [<ffffffff8101ec2b>] ? check_for_xstate+0x3b/0xc0
:[144006.647440]  [<ffffffff81195028>] do_vfs_ioctl+0x98/0x550
:[144006.647445]  [<ffffffff810d15c6>] ? __audit_syscall_exit+0x3d6/0x410
:[144006.647449]  [<ffffffff81195571>] sys_ioctl+0x91/0xa0
:[144006.647454]  [<ffffffff81604687>] ? int_check_syscall_exit_work+0x34/0x3d
:[144006.647458]  [<ffffffff816043e9>] system_call_fastpath+0x16/0x1b