[Bug 71031] [PNV]boot system has [ 1.567808] [drm:i915_stolen_to_physical] *ERROR* conflict detected with stolen region: [0x7f800000 - 0x80000000]

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=71031

--- Comment #33 from lu hua <huax.lu at intel.com> ---
Test on latest -nightly kernel, it still happens. 
Run ./drv_module_reload, it also has this error.
[root at x-pnv2 tests]# ./drv_module_reload
unbinding /sys/class/vtconsole/vtcon0/: (M) frame buffer device
module successfully unloaded
module successfully loaded again
[root at x-pnv2 tests]# dmesg -r|egrep "<[1-4]>"|grep drm
<3>[  163.125482] [drm:i915_gem_init_stolen [i915]] *ERROR* conflict detected
with stolen region: [0x7f800000 - 0x80000000]
<3>[  163.439274] [drm:check_crtc_state [i915]] *ERROR* mismatch in
adjusted_mode.crtc_clock (expected 45000, found -2857)
<4>[  163.439353] WARNING: CPU: 1 PID: 1157 at
drivers/gpu/drm/i915/intel_display.c:10625 check_crtc_state+0xa07/0xa35
[i915]()
<4>[  163.439411] Modules linked in: i915 drm_kms_helper drm ip6table_filter
ip6_tables ebtable_nat ebtables nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack
nf_conntrack ipt_REJECT nf_reject_ipv4 iptable_mangle xt_tcpudp iptable_filter
ip_tables x_tables bridge stp llc ipv6 dm_mod iTCO_wdt iTCO_vendor_support
msi_laptop sparse_keymap rfkill pcspkr i2c_i801 snd_hda_codec_realtek lpc_ich
mfd_core snd_hda_codec_generic snd_hda_controller snd_hda_codec snd_hwdep
snd_pcm snd_timer snd r8169 soundcore wmi battery ac acpi_cpufreq joydev button
video cfbfillrect cfbimgblt cfbcopyarea [last unloaded: drm]
<4>[  163.439418] CPU: 1 PID: 1157 Comm: kworker/u4:4 Tainted: G        W     
3.18.0-rc3_drm-intel-nightly_de6d6c_20141111+ #1386
<4>[  163.439901]  [<f90d02e1>] ? drm_mode_set_config_internal+0x39/0x97 [drm]
<4>[  163.439910]  [<f93c8958>] ? restore_fbdev_mode+0x93/0xa8 [drm_kms_helper]
<4>[  163.439918]  [<f93c8982>] ?
drm_fb_helper_restore_fbdev_mode_unlocked+0x15/0x23 [drm_kms_helper]
<4>[  163.439926]  [<f93c90c8>] ? drm_fb_helper_set_par+0x2c/0x42
[drm_kms_helper]
<4>[  163.440083]  [<f93c9303>] ? drm_fb_helper_initial_config+0x225/0x2a4
[drm_kms_helper]

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