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<body><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> changed
<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>
<br>
<table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>What</th>
<th>Removed</th>
<th>Added</th>
</tr>
<tr>
<td style="text-align:right;">Resolution</td>
<td>INVALID
</td>
<td>---
</td>
</tr>
<tr>
<td style="text-align:right;">Status</td>
<td>CLOSED
</td>
<td>REOPENED
</td>
</tr></table>
<p>
<div>
<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#c7">Comment # 7</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>The warn keeps appearing on our CNL-2:
Results for igt@debugfs_test@read_all_entries
Result: dmesg-warn
Out
IGT-Version: 1.22-ga9741da (x86_64) (Linux:
4.16.0-rc6-drm-intel-qa-ww13-commit-94f5d91+ x86_64)
Subtest read_all_entries: SUCCESS (1.551s)
Dmesg
[ 74.686683] ------------[ cut here ]------------
[ 74.686684] WARN_ON_ONCE(mcr & mcr_slice_subslice_mask)
[ 74.686777] WARNING: CPU: 2 PID: 2120 at
drivers/gpu/drm/i915/intel_engine_cs.c:835
intel_engine_get_instdone+0x45e/0x4b0 [i915]
[ 74.686778] 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 arc4 snd_soc_core snd_hda_codec_realtek
snd_hda_codec_generic snd_compress snd_pcm_dmaengine ac97_bus iwlmvm mac80211
x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm irqbypass
crct10dif_pclmul snd_hda_intel crc32_pclmul snd_hda_codec ghash_clmulni_intel
snd_hda_core pcbc snd_hwdep snd_pcm snd_seq_midi aesni_intel snd_seq_midi_event
aes_x86_64 crypto_simd glue_helper cryptd snd_rawmidi snd_seq snd_seq_device
serio_raw snd_timer wmi_bmof iwlwifi snd btusb btrtl btbcm btintel input_leds
bluetooth soundcore ax88179_178a usbnet mii mei_me shpchp idma64 ecdh_generic
cfg80211 virt_dma mei intel_lpss_pci intel_lpss intel_pch_thermal
[ 74.686842] acpi_pad mac_hid parport_pc ppdev lp parport ip_tables x_tables
autofs4 hid_generic usbhid hid dwc3 udc_core ulpi i915 e1000e dwc3_pci
prime_numbers wmi video
[ 74.686865] CPU: 2 PID: 2120 Comm: debugfs_test Not tainted
4.16.0-rc6-drm-intel-qa-ww13-commit-94f5d91+ #1
[ 74.686867] Hardware name: Intel Corporation CannonLake Client
Platform/CannonLake Y LPDDR4 RVP, BIOS CNLSFWR1.R00.X124.B02.1802051422
02/05/2018
[ 74.686915] RIP: 0010:intel_engine_get_instdone+0x45e/0x4b0 [i915]
[ 74.686918] RSP: 0018:ffffb13a43907bf0 EFLAGS: 00010082
[ 74.686921] RAX: 0000000000000000 RBX: 000000000f000000 RCX:
ffffffffa3258448
[ 74.686923] RDX: 0000000000000001 RSI: 0000000000000082 RDI:
0000000000000002
[ 74.686925] RBP: ffffb13a43907cb8 R08: 000000000000002b R09:
0000000000000b04
[ 74.686927] R10: 00000000ffffffff R11: 0000000000000b04 R12:
0000000000000001
[ 74.686929] R13: ffff9816a90c0000 R14: 0000000000000000 R15:
0000000011000000
[ 74.686932] FS: 00007f6ceba6ba40(0000) GS:ffff9816bf900000(0000)
knlGS:0000000000000000
[ 74.686934] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 74.686936] CR2: 00007f5298d33000 CR3: 00000002ae8f6001 CR4:
0000000000760ee0
[ 74.686938] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
0000000000000000
[ 74.686940] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7:
0000000000000400
[ 74.686941] PKRU: 55555554
[ 74.686942] Call Trace:
[ 74.686985] i915_hangcheck_info+0x107/0x3f0 [i915]
[ 74.686994] ? is_bpf_text_address+0xa/0x20
[ 74.686999] ? __save_stack_trace+0x92/0x100
[ 74.687007] seq_read+0xb6/0x450
[ 74.687012] full_proxy_read+0x50/0x70
[ 74.687017] __vfs_read+0x36/0x170
[ 74.687021] vfs_read+0x8e/0x130
[ 74.687024] SyS_read+0x52/0xc0
[ 74.687029] do_syscall_64+0x6e/0x120
[ 74.687034] entry_SYSCALL_64_after_hwframe+0x3d/0xa2
[ 74.687037] RIP: 0033:0x7f6ce9c28d11
[ 74.687039] RSP: 002b:00007ffece4d9788 EFLAGS: 00000246 ORIG_RAX:
0000000000000000
[ 74.687043] RAX: ffffffffffffffda RBX: 00000000010e91e3 RCX:
00007f6ce9c28d11
[ 74.687044] RDX: 0000000000000200 RSI: 00007ffece4d97a0 RDI:
0000000000000006
[ 74.687046] RBP: 00000000010e8c30 R08: 0000000000000000 R09:
0000000000000000
[ 74.687048] R10: 0000000000000000 R11: 0000000000000246 R12:
0000000000000001
[ 74.687050] R13: 0000000000000005 R14: 0000000000000006 R15:
0000000000000000
[ 74.687052] Code: e7 fe ff ff 80 3d 2a 11 17 00 00 0f 85 40 fe ff ff 48 c7
c6 50 0a 54 c0 48 c7 c7 ad c4 52 c0 c6 05 0f 11 17 00 01 e8 c2 06 c2 e1 <0f> 0b
8b 4c 24 10 e9 1b fe ff ff 80 3d f8 10 17 00 00 0f 85 07
[ 74.687158] WARNING: CPU: 2 PID: 2120 at
drivers/gpu/drm/i915/intel_engine_cs.c:835
intel_engine_get_instdone+0x45e/0x4b0 [i915]
[ 74.687160] ---[ end trace 953653dc4e9d12c7 ]---</pre>
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