[Bug 88607] New: [SMN/IVB/HSW/BDW]igt/gem_mmap_wc/set-cache-level causes drivers/gpu/drm/i915/i915_gem.c:3834 i915_gem_object_set_cache_level+0x1da/0x26b [i915]

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=88607

            Bug ID: 88607
           Summary: [SMN/IVB/HSW/BDW]igt/gem_mmap_wc/set-cache-level
                    causes drivers/gpu/drm/i915/i915_gem.c:3834
                    i915_gem_object_set_cache_level+0x1da/0x26b [i915]
           Product: DRI
           Version: unspecified
          Hardware: All
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: huax.lu at intel.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 112511
  --> https://bugs.freedesktop.org/attachment.cgi?id=112511&action=edit
dmesg

==System Environment==
--------------------------
Regression: not sure, new case

Non-working platforms: ILK/SNB/IVB/HSW

==kernel==
--------------------------
drm-intel-nightly/be0b52082364f73b6ffa2841ec4ded2ddecfa881
commit be0b52082364f73b6ffa2841ec4ded2ddecfa881
Author: Daniel Vetter <daniel.vetter at ffwll.ch>
Date:   Sat Jan 17 10:41:34 2015 +0100

    drm-intel-nightly: 2015y-01m-17d-09h-41m-12s UTC integration manifest

==Bug detailed description==
-----------------------------
It causes WARNING: CPU: 4 PID: 4029 at drivers/gpu/drm/i915/i915_gem.c:3834
i915_gem_object_set_cache_level+0x1da/0x26b [i915]()

output:
IGT-Version: 1.9-g20d6e0f (x86_64) (Linux:
3.19.0-rc4_drm-intel-nightly_be0b52_2                                          
                                                      0150119+ x86_64)
Subtest set-cache-level: SUCCESS (0.018s)

dmesg:
[   89.149360] WARNING: CPU: 4 PID: 4029 at
drivers/gpu/drm/i915/i915_gem.c:3834
i915_gem_object_set_cache_level+0x1da/0x26b [i915]()
[   89.149401] WARN_ON(obj->base.write_domain & ~I915_GEM_DOMAIN_CPU)
[   89.149422] Modules linked in:
[   89.149435]  ipv6 dm_mod tpm_infineon wmi tpm_tis tpm acpi_cpufreq i915
button video drm_kms_helper drm cfbfillrect cfbimgblt cfbcopyarea
[   89.149494] CPU: 4 PID: 4029 Comm: gem_mmap_wc Not tainted
3.19.0-rc4_drm-intel-nightly_be0b52_20150119+ #630
[   89.149527] Hardware name: ASUS All Series/Z87-EXPERT, BIOS 1008 05/17/2013
[   89.149551]  0000000000000000 0000000000000009 ffffffff81799600
ffff880250727a78
[   89.149582]  ffffffff8103bdcc 0000000000000246 ffffffffa00a7fa4
000000000001d244
[   89.149612]  ffff880252a3c1c0 0000000000000000 ffff880252a3c280
ffff880252a3c200
[   89.149644] Call Trace:
[   89.149657]  [<ffffffff81799600>] ? dump_stack+0x40/0x50
[   89.149679]  [<ffffffff8103bdcc>] ? warn_slowpath_common+0x98/0xb0
[   89.149716]  [<ffffffffa00a7fa4>] ?
i915_gem_object_set_cache_level+0x1da/0x26b [i915]
[   89.149745]  [<ffffffff8103be7c>] ? warn_slowpath_fmt+0x45/0x4a
[   89.149770]  [<ffffffffa00a7fa4>] ?
i915_gem_object_set_cache_level+0x1da/0x26b [i915]
[   89.149803]  [<ffffffffa00a8b06>] ?
i915_gem_object_pin_to_display_plane+0x88/0x18a [i915]
[   89.149838]  [<ffffffffa00d2f54>] ? intel_pin_and_fence_fb_obj+0xd9/0x115
[i915]
[   89.149870]  [<ffffffffa00dcdfa>] ? intel_prepare_plane_fb+0xfa/0x12c [i915]
[   89.149901]  [<ffffffffa005e717>] ? drm_plane_helper_commit+0xc0/0x1cb
[drm_kms_helper]
[   89.149933]  [<ffffffffa001910c>] ? __setplane_internal+0x23c/0x29a [drm]
[   89.149960]  [<ffffffffa0018e7b>] ? add_framebuffer_internal+0x61c/0x671
[drm]
[   89.149988]  [<ffffffffa0019313>] ? drm_mode_cursor_common+0x1a9/0x2a0 [drm]
[   89.150016]  [<ffffffffa001c11e>] ? drm_mode_cursor_ioctl+0x31/0x36 [drm]
[   89.150043]  [<ffffffffa001070a>] ? drm_ioctl+0x279/0x3bc [drm]
[   89.150065]  [<ffffffff810effd2>] ? tlb_finish_mmu+0xb/0x2f
[   89.150088]  [<ffffffffa001c0ed>] ? drm_mode_setcrtc+0x4a9/0x4a9 [drm]
[   89.150112]  [<ffffffff810f5caf>] ? vma_rb_erase+0x179/0x1c3
[   89.150134]  [<ffffffff811222f5>] ? do_vfs_ioctl+0x412/0x459
[   89.150155]  [<ffffffff810a30ea>] ? __audit_syscall_entry+0xb2/0xd2
[   89.150178]  [<ffffffff8100d2f2>] ? syscall_trace_enter_phase1+0x11e/0x127
[   89.150203]  [<ffffffff81122385>] ? SyS_ioctl+0x49/0x78
[   89.150222]  [<ffffffff810a3313>] ? __audit_syscall_exit+0x209/0x225
[   89.150247]  [<ffffffff8179efd2>] ? system_call_fastpath+0x12/0x17
[   89.150269] ---[ end trace 3cc1abd29fb82700 ]---

==Reproduce steps==
---------------------------- 
1. ./gem_mmap_wc --run-subtest set-cache-level

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