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            <b><a class="bz_bug_link 
          bz_status_REOPENED "
   title="REOPENED - [IGT][CNL Only] igt@debugfs_test@read_all_entries dmesg-warn WARN_ON_ONCE(mcr & ((((3) & 3) << 26) | (((3) & 3) << 24)))"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=104982#c10">Comment # 10</a>
              on <a class="bz_bug_link 
          bz_status_REOPENED "
   title="REOPENED - [IGT][CNL Only] igt@debugfs_test@read_all_entries dmesg-warn WARN_ON_ONCE(mcr & ((((3) & 3) << 26) | (((3) & 3) << 24)))"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=104982">bug 104982</a>
              from <span class="vcard"><a class="email" href="mailto:elizabethx.de.la.torre.mena@intel.com" title="Elizabeth <elizabethx.de.la.torre.mena@intel.com>"> <span class="fn">Elizabeth</span></a>
</span></b>
        <pre>Results for igt@debugfs_test@read_all_entries
Result: dmesg-warn

Stdout  
IGT-Version: 1.22-g8cc6f71 (x86_64) (Linux:
4.16.0-rc7-drm-intel-qa-ww15-commit-1be0731+ x86_64)
Subtest read_all_entries: SUCCESS (1.544s)
Stderr  
Environment     
PIGLIT_SOURCE_DIR="/home/gfx/intel-graphics/intel-gpu-tools/piglit"
PIGLIT_PLATFORM="mixed_glx_egl"
Command /home/gfx/intel-graphics/intel-gpu-tools/tests/debugfs_test
--run-subtest read_all_entries
dmesg   
[   74.653930] ------------[ cut here ]------------
[   74.653931] WARN_ON_ONCE(mcr & mcr_slice_subslice_mask)
[   74.654020] WARNING: CPU: 1 PID: 2062 at
drivers/gpu/drm/i915/intel_engine_cs.c:835
intel_engine_get_instdone+0x45e/0x4b0 [i915]
[   74.654023] Modules linked in: snd_hda_codec_hdmi cmac bnep 8250_dw
snd_soc_skl snd_soc_skl_ipc snd_soc_sst_ipc snd_soc_sst_dsp snd_hda_ext_core
snd_soc_acpi nls_iso8859_1 snd_hda_codec_realtek snd_hda_codec_generic
snd_soc_core snd_compress snd_pcm_dmaengine ac97_bus arc4 x86_pkg_temp_thermal
intel_powerclamp coretemp kvm_intel snd_hda_intel snd_hda_codec snd_hda_core
kvm snd_hwdep snd_pcm irqbypass crct10dif_pclmul crc32_pclmul iwlmvm
ghash_clmulni_intel pcbc mac80211 snd_seq_midi snd_seq_midi_event snd_rawmidi
snd_seq aesni_intel aes_x86_64 crypto_simd glue_helper snd_seq_device cryptd
snd_timer input_leds snd iwlwifi wmi_bmof serio_raw btusb asix btrtl btbcm
usbnet btintel idma64 virt_dma shpchp soundcore mii bluetooth intel_lpss_pci
intel_lpss cfg80211 mei_me mei ecdh_generic intel_pch_thermal
[   74.654086]  mac_hid acpi_pad parport_pc ppdev lp parport ip_tables x_tables
autofs4 i915 dwc3 udc_core ulpi e1000e dwc3_pci prime_numbers wmi video
[   74.654106] CPU: 1 PID: 2062 Comm: debugfs_test Tainted: G     U          
4.16.0-rc7-drm-intel-qa-ww15-commit-1be0731+ #1
[   74.654108] Hardware name: Intel Corporation CannonLake Client
Platform/CannonLake Y LPDDR4 RVP, BIOS CNLSFWR1.R00.X124.B02.1802051422
02/05/2018
[   74.654156] RIP: 0010:intel_engine_get_instdone+0x45e/0x4b0 [i915]
[   74.654159] RSP: 0018:ffffaeb6c384fbf0 EFLAGS: 00010082
[   74.654162] RAX: 0000000000000000 RBX: 000000000f000000 RCX:
ffffffff9aa58448
[   74.654164] RDX: 0000000000000001 RSI: 0000000000000082 RDI:
0000000000000002
[   74.654165] RBP: ffffaeb6c384fcb8 R08: 000000000000002b R09:
0000000000000ac7
[   74.654167] R10: 00000000ffffffff R11: 0000000000000ac7 R12:
0000000000000001
[   74.654169] R13: ffff9d4aa8c80000 R14: 0000000000000000 R15:
0000000011000000
[   74.654172] FS:  00007fea70a3fa40(0000) GS:ffff9d4abf880000(0000)
knlGS:0000000000000000
[   74.654174] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   74.654176] CR2: 00007f7d194a09b8 CR3: 00000002a93f6001 CR4:
0000000000760ee0
[   74.654178] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
0000000000000000
[   74.654180] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7:
0000000000000400
[   74.654181] PKRU: 55555554
[   74.654182] Call Trace:
[   74.654225]  i915_hangcheck_info+0x107/0x3f0 [i915]
[   74.654233]  ? is_bpf_text_address+0xa/0x20
[   74.654238]  ? __save_stack_trace+0x92/0x100
[   74.654244]  seq_read+0xb6/0x450
[   74.654249]  full_proxy_read+0x50/0x70
[   74.654255]  __vfs_read+0x36/0x170
[   74.654258]  vfs_read+0x8e/0x130
[   74.654261]  SyS_read+0x52/0xc0
[   74.654266]  do_syscall_64+0x6e/0x120
[   74.654271]  entry_SYSCALL_64_after_hwframe+0x3d/0xa2
[   74.654274] RIP: 0033:0x7fea6ebfcd11
[   74.654276] RSP: 002b:00007ffc559521b8 EFLAGS: 00000246 ORIG_RAX:
0000000000000000
[   74.654279] RAX: ffffffffffffffda RBX: 00000000019fc743 RCX:
00007fea6ebfcd11
[   74.654281] RDX: 0000000000000200 RSI: 00007ffc559521d0 RDI:
0000000000000006
[   74.654282] RBP: 00000000019fc190 R08: 0000000000000000 R09:
0000000000000000
[   74.654284] R10: 0000000000000000 R11: 0000000000000246 R12:
0000000000000001
[   74.654286] R13: 0000000000000005 R14: 0000000000000006 R15:
0000000000000000
[   74.654288] Code: e7 fe ff ff 80 3d a7 2e 17 00 00 0f 85 40 fe ff ff 48 c7
c6 98 a6 40 c0 48 c7 c7 b1 5c 3f c0 c6 05 8c 2e 17 00 01 e8 22 85 55 d9 <0f> 0b
8b 4c 24 10 e9 1b fe ff ff 80 3d 75 2e 17 00 00 0f 85 07 
[   74.654394] WARNING: CPU: 1 PID: 2062 at
drivers/gpu/drm/i915/intel_engine_cs.c:835
intel_engine_get_instdone+0x45e/0x4b0 [i915]
[   74.654396] ---[ end trace 1c1702ada2409c7b ]---</pre>
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