Bug report

[artem rus]

Problem: GPU hangs
Chipset: Intel 845 GV + ICH4
Video: integrated
Linux kernel: 3.3.5, 3.4.7 (no bug difference)
X.Org X Server 1.7.7
How to reproduce: First Xorg start is ok, bug happens after Xorg restart
Syslog:
Aug  1 17:13:18 nika kernel: [ 1049.248033]
[drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... GPU
hung
Aug  1 17:13:18 nika kernel: [ 1049.248045] [drm] capturing error
event; look for more information in /debug/dri/0/i915_error_state
Aug  1 17:13:20 nika kernel: [ 1051.736033]
[drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... GPU
hung
Aug  1 17:13:20 nika kernel: [ 1051.740699] [drm:i915_reset] *ERROR*
GPU hanging too fast, declaring wedged!
Aug  1 17:13:20 nika kernel: [ 1051.740706] [drm:i915_reset] *ERROR*
Failed to reset chip.

Aug  1 17:15:57 nika kernel: [ 1208.915038] WARNING: at
/root/build_scgs/build/linux-3.4.7/drivers/gpu/drm/i915/i915_gem.c:2410
i915_gem_object_put_fence+0x5b/0x86 [i915]()
Aug  1 17:15:57 nika kernel: [ 1208.915042] Hardware name:
Aug  1 17:15:57 nika kernel: [ 1208.915045] Modules linked in: fuse
ext3 jbd microcode i915 snx(O) i2c_i801 evdev pcspkr parport_pc
parport drm_kms_helper processor drm rng_core i2c_algo_bit button
intel_agp i2c_core intel_gtt video agpgart ext2 mbcache usb_storage
uas usbhid hid sd_mod crc_t10dif via_rhine mii ata_piix libata
uhci_hcd scsi_mod ehci_hcd usbcore thermal usb_common fan thermal_sys
[last unloaded: scsi_wait_scan]
Aug  1 17:15:57 nika kernel: [ 1208.915104] Pid: 1583, comm: Xorg
Tainted: G           O 3.4.7-1-nika #1
Aug  1 17:15:57 nika kernel: [ 1208.915107] Call Trace:
Aug  1 17:15:57 nika kernel: [ 1208.915118]  [<c101a65e>] ?
warn_slowpath_common+0x68/0x79
Aug  1 17:15:57 nika kernel: [ 1208.915132]  [<f8e016c6>] ?
i915_gem_object_put_fence+0x5b/0x86 [i915]
Aug  1 17:15:57 nika kernel: [ 1208.915137]  [<c101a67c>] ?
warn_slowpath_null+0xd/0x10
Aug  1 17:15:57 nika kernel: [ 1208.915150]  [<f8e016c6>] ?
i915_gem_object_put_fence+0x5b/0x86 [i915]
Aug  1 17:15:57 nika kernel: [ 1208.915164]  [<f8e025b7>] ?
i915_gem_object_unbind+0x9a/0x13f [i915]
Aug  1 17:15:57 nika kernel: [ 1208.915177]  [<f8e02671>] ?
i915_gem_free_object_tail+0x15/0xae [i915]
Aug  1 17:15:57 nika kernel: [ 1208.915195]  [<f85a4f78>] ?
drm_gem_object_free+0x1d/0x1e [drm]
Aug  1 17:15:57 nika kernel: [ 1208.915212]  [<f8e0a8ef>] ?
drm_gem_object_unreference_unlocked+0x26/0x32 [i915]
Aug  1 17:15:57 nika kernel: [ 1208.915226]  [<f8e0baf5>] ?
intel_user_framebuffer_destroy+0x10/0x18 [i915]
Aug  1 17:15:57 nika kernel: [ 1208.915240]  [<f85ae369>] ?
drm_fb_release+0x3a/0x52 [drm]
Aug  1 17:15:57 nika kernel: [ 1208.915250]  [<f85a48b8>] ?
drm_release+0x289/0x4b4 [drm]
Aug  1 17:15:57 nika kernel: [ 1208.915257]  [<c109fe1a>] ? fput+0xd4/0x195
Aug  1 17:15:57 nika kernel: [ 1208.915261]  [<c109dbb3>] ? filp_close+0x52/0x58
Aug  1 17:15:57 nika kernel: [ 1208.915267]  [<c101cb79>] ?
put_files_struct+0x4c/0x90
Aug  1 17:15:57 nika kernel: [ 1208.915271]  [<c101cf8b>] ? do_exit+0x1ec/0x60f
Aug  1 17:15:57 nika kernel: [ 1208.915276]  [<c1001bed>] ?
restore_sigcontext+0xbf/0xec
Aug  1 17:15:57 nika kernel: [ 1208.915280]  [<c100250c>] ?
sys_sigreturn+0x62/0x86
Aug  1 17:15:57 nika kernel: [ 1208.915285]  [<c101d569>] ?
do_group_exit+0x3e/0x5f
Aug  1 17:15:57 nika kernel: [ 1208.915289]  [<c101d59b>] ?
sys_exit_group+0x11/0x11
Aug  1 17:15:57 nika kernel: [ 1208.915294]  [<c125165c>] ? syscall_call+0x7/0xb
Aug  1 17:15:57 nika kernel: [ 1208.915298] ---[ end trace d758b3315db37a86 ]---