[drm] Initialized drm 1.1.0 20060810
PCI: Unable to reserve mem region #3:10000000@d0000000 for device 0000:00:02.0
PCI: Setting latency timer of device 0000:00:02.0 to 64
[drm] Initialized i915 1.13.0 20080312 on minor 0
[drm] Used old pci detect: framebuffer loaded
BUG: unable to handle kernel NULL pointer dereference at 0000000000000004
IP: [<ffffffff884b902e>] :drm:drm_update_vblank_count+0x44/0x7d
PGD 280f6067 PUD 381f1067 PMD 0
Oops: 0000 [1] SMP
CPU 0
Modules linked in: i915 drm ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4 nf_conntrack ppp_deflate zlib_deflate bsd_comp pppoatm ppp_generic slhc rfcomm l2cap bluetooth binfmt_misc ppdev ipv6 acpi_cpufreq cpufreq_conservative cpufreq_stats cpufreq_powersave sbs sbshc iptable_filter ip_tables x_tables clip dm_crypt dm_mod firewire_sbp2 parport_pc lp parport snd_hda_intel snd_pcm_oss snd_mixer_oss arc4 ecb crypto_blkcipher snd_pcm snd_page_alloc snd_hwdep snd_seq_dummy snd_seq_oss snd_seq_midi snd_rawmidi snd_seq_midi_event pcmcia snd_seq iwl3945 snd_timer snd_seq_device nsc_ircc mac80211 irda iTCO_wdt sdhci snd crc_ccitt speedtch usbatm yenta_socket rsrc_nonstatic cfg80211 tifm_7xx1 mmc_core serio_raw atm pcspkr pcmcia_core iTCO_vendor_support tifm_core soundcore battery ac video button acer_wmi wmi joydev ext3 jbd mbcache sg sr_mod cdrom sd_mod piix ide_pci_generic ide_core ata_piix ahci pata_acpi firewire_ohci firewire_core crc_itu_t libata scsi_mod dock tg3 ehci_hcd uhci_hcd fuse [last unloaded: drm]
Pid: 679, comm: X Not tainted 2.6.25-rc9 #3
RIP: 0010:[<ffffffff884b902e>]  [<ffffffff884b902e>] :drm:drm_update_vblank_count+0x44/0x7d
RSP: 0018:ffff810036d47b48  EFLAGS: 00010002
RAX: 0000000000000001 RBX: 0000000000000001 RCX: 0000000000000000
RDX: 0000000000000004 RSI: 0000000000000002 RDI: ffff810026a62328
RBP: 0000000000000004 R08: ffffffff881579a0 R09: ffffc200108f1044
R10: 0000000000000000 R11: 0000000000003246 R12: 0000000000000023
R13: ffff810026a62000 R14: ffff810026a62328 R15: 0000000000000080
FS:  00007f58d29106e0(0000) GS:ffffffff81338000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 0000000000000004 CR3: 0000000004dfb000 CR4: 00000000000006e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process X (pid: 679, threadinfo ffff810036d46000, task ffff810014f108e0)
Stack:  0000000000000001 ffff810026a62000 0000000000000010 0000000000020206
 0000000000000001 ffffffff884b9248 ffff8100360e6ac0 ffff81002d1fae40
 ffff81003edf6a08 ffff810026a66000 ffff810026a62000 0000000000000010
Call Trace:
 [<ffffffff884b9248>] ? :drm:drm_handle_vblank+0x23/0xfa
 [<ffffffff8844692b>] ? :i915:i915_driver_irq_handler+0xe5/0x17f
 [<ffffffff88446846>] ? :i915:i915_driver_irq_handler+0x0/0x17f
 [<ffffffff81063cd8>] ? request_irq+0xb1/0xe4
 [<ffffffff884b9951>] ? :drm:drm_control+0x0/0x55
 [<ffffffff884b9537>] ? :drm:drm_irq_install+0xe3/0x127
 [<ffffffff884b7639>] ? :drm:drm_unlocked_ioctl+0x198/0x212
 [<ffffffff81069c2c>] ? __generic_file_aio_write_nolock+0x343/0x377
 [<ffffffff81069ccf>] ? generic_file_aio_write+0x6f/0xc4
 [<ffffffff881471e2>] ? :ext3:ext3_file_write+0x16/0x94
 [<ffffffff8108bf20>] ? do_sync_write+0xd1/0x118
 [<ffffffff810457df>] ? lock_hrtimer_base+0x1b/0x3c
 [<ffffffff810430b7>] ? autoremove_wake_function+0x0/0x2e
 [<ffffffff884b76c4>] ? :drm:drm_ioctl+0x11/0x13
 [<ffffffff81097351>] ? vfs_ioctl+0x55/0x6b
 [<ffffffff810975ba>] ? do_vfs_ioctl+0x253/0x264
 [<ffffffff8108c72d>] ? vfs_write+0x121/0x156
 [<ffffffff81097607>] ? sys_ioctl+0x3c/0x5d
 [<ffffffff8100bcfb>] ? system_call_after_swapgs+0x7b/0x80


Code: 89 f3 ff 90 80 00 00 00 4c 89 f7 41 89 c4 e8 a9 4c d7 f8 48 89 c6 48 63 c3 48 8d 2c 85 00 00 00 00 48 89 ea 49 03 95 48 03 00 00 <8b> 0241 39 c4 73 0e 44 89 e3 29 c3 41 03 9d b8 03 00 00 eb 05
RIP  [<ffffffff884b902e>] :drm:drm_update_vblank_count+0x44/0x7d
 RSP <ffff810036d47b48>
CR2: 0000000000000004
---[ end trace 459840446d72e4b2 ]---