Bug 71031

Created attachment 88340 [details]
iomem

Can you please also upload iomem from a kernel before ee75f952998e8365da90300cf1d421fc6c7dafa2 ?

I just wonder where     7f700000-7f8fffff : PCI Bus 0000:01 is from.

Also please upload the output of lspci -vvnn (from a recent kernel with that patch).

Note I have a similar issue that has cropped up on my byt-t - which would be a pita to bisect.

Created attachment 88398 [details]
iomem on 93825ce151e8

Created attachment 88399 [details]
lspci -vvnn on latest kernel

Can you confirm whether the error message still occurs on -nightly?

It still happens on latest -nightly kernel.

Created attachment 92036 [details] [review]
stolen debug patch

Please apply this debug patch on top of latest drm-intel-nightly, boot with drm.debug=0xe and attach the complete dmesg (early boot message are really important here).

Created attachment 92114 [details]
dmesg with stolen debug patch

No error message there.

It still happens on latest -nightly kernel.

The previous dmesg did not have any error message. Perhaps you might like to attach your current dmesg when reopening the bug.

Created attachment 92706 [details]
dmesg

*sighs.

My system prints an INFO for the arch/x86/kernel/early-quirks.c stolen reservation.

Please apply the debug patch and try again.

(In reply to comment #14)
> *sighs.
> 
> My system prints an INFO for the arch/x86/kernel/early-quirks.c stolen
> reservation.
> 
> Please apply the debug patch and try again.

Apply stolen debug patch, this error goes away.

Created attachment 92793 [details]
dmesg with stolen debug patch

That makes no sense as the debug patch just adds a line to dmesg and does not explain the behaviour you are reporting. Please, please, double check.

Created attachment 95162 [details] [review]
drm/i915: Trim stolen region for reserved pages and conflicting BIOS setups

Please test this patch.

(In reply to comment #18)
> Created attachment 95162 [details] [review] [review]
> drm/i915: Trim stolen region for reserved pages and conflicting BIOS setups
> 
> Please test this patch.

Apply this patch, build fail.

make[6]: *** [drivers/gpu/drm/i915/i915_gpu_error.o] Error 1
make[5]: *** [drivers/gpu/drm/i915] Error 2
make[4]: *** [drivers/gpu/drm] Error 2
make[3]: *** [drivers/gpu] Error 2
make[2]: *** [drivers] Error 2
make[1]: *** [binrpm-pkg] Error 2
make: *** [binrpm-pkg] Error 2

Please retest on latest -nightly, it contains the light version of the stolen range frobnicator.

Created attachment 95571 [details]
dmesg

It still occurs on latest -nightly kernel(0cfec5).

Created attachment 96494 [details] [review]
off-by-one fix

Please test with this patch on top of latest -nightly.

If it still fails please attach dmesg _and_ /proc/iomem

(In reply to comment #22)
> Created attachment 96494 [details] [review] [review]
> off-by-one fix
> 
> Please test with this patch on top of latest -nightly.
> 
> If it still fails please attach dmesg _and_ /proc/iomem

Test this patch, It still occurs.

Created attachment 96507 [details]
dmesg(patch)

Created attachment 96508 [details]
iomem

Created attachment 96515 [details] [review]
new debug patch

Please apply and attach dmesg.

Created attachment 96635 [details]
dmesg(patch 96515)

Test this patch, It still has this error.

Created attachment 96943 [details] [review]
New patch to test

Please test this patch and then attach the contents of /sys/kernel/debug/dri/0/i915_gem_stolen You need debugfs enabled&mounted for that ofc.

(In reply to comment #28)
> Created attachment 96943 [details] [review] [review]
> New patch to test
> 
> Please test this patch and then attach the contents of
> /sys/kernel/debug/dri/0/i915_gem_stolen You need debugfs enabled&mounted for
> that ofc.

Apply this patch, It works well.
/sys/kernel/debug/dri/0/i915_gem_stolen:
Stolen:
   f587b500:   g     1252KiB 41 00 0 0 0 uncached (pinned x 0) (ggtt offset: 00000000, size: 00139000) (stolen: 00000000)
   f587b600: p g      128KiB 40 40 0 0 0 uncached dirty (pinned x 1) (ggtt offset: 0013c000, size: 00020000) (stolen: 00139000) (p mappable)
   f587b700: p g        4KiB 40 40 0 0 0 uncached dirty (pinned x 1) (ggtt offset: 0015c000, size: 00001000) (stolen: 00159000) (p mappable)
   f63aae00: p g     2400KiB 41 00 0 0 0 uncached (pinned x 1) (display) (ggtt offset: 00160000, size: 00258000) (stolen: 0015a000) (p mappable)
Total 4 objects, 3874816 bytes, 3874816 GTT size

[   11.155637] [drm:i915_stolen_to_physical] *ERROR* conflict detected with stolen region: [0x3f800000 - 0x400000000]

Ran into this on Arch Linux on my Eee PC 900 at the end of the boot process, when it tried to start LMDE.

Just updated, it's fixed for me now!

It still happens on latest drm-intel-nightly(eb2af97968f0) kernel. 
[root@x-pnv2 ~]# dmesg -r | egrep "<[1-3]>" |grep drm
<3>[    2.017276] [drm:i915_stolen_to_physical] *ERROR* conflict detected with stolen region: [0x7f800000 - 0x80000000]
[root@x-pnv2 ~]# uname -a
Linux x-pnv2 3.16.0-rc6_drm-intel-nightly_eb2af9_20140730+

Test on latest -nightly kernel, it still happens. 
Run ./drv_module_reload, it also has this error.
[root@x-pnv2 tests]# ./drv_module_reload
unbinding /sys/class/vtconsole/vtcon0/: (M) frame buffer device
module successfully unloaded
module successfully loaded again
[root@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]

commit ee86e80a6f976e76bcdb5f2071a9d07f5fd63c61
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date:   Fri Apr 11 15:55:17 2014 +0200

    drm/i915: Don't complain about stolen conflicts on gen3

Reboot 5 rounds on latest -nightly kernel, I don't meet this error.

[    1.425266] [drm:i915_gem_init_stolen [i915]] *ERROR* conflict detected with stolen region: [0x88000000 - 0xc8000000]


4.7.0-996-generic #201607222201

[drm:i915_gem_init_stolen [i915]] *ERROR* conflict detected with stolen region: [0xb6000000 - 0xb8000000]

(In reply to Jarkko K from comment #36)
> [    1.425266] [drm:i915_gem_init_stolen [i915]] *ERROR* conflict detected
> with stolen region: [0x88000000 - 0xc8000000]
> 
> 
> 4.7.0-996-generic #201607222201

(In reply to jc.francois from comment #37)
> [drm:i915_gem_init_stolen [i915]] *ERROR* conflict detected with stolen
> region: [0xb6000000 - 0xb8000000]

Both of these are missing any details on the platform, which is almost certainly not PNV as in the original bug. This bug is fixed, and has been for years. Please do not open old bugs to report new ones.

Please file a new bug, add drm.debug=14 module parameter and attach full dmesg on that bug.