[Bug 103337] [CI] igt@* - dmesg-warn - *ERROR* Panel is unable to calculate any CRC after 6 vblanks | Unclaimed read from register 0x130090

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=103337

--- Comment #22 from Marta Löfstedt <marta.lofstedt at intel.com> ---
(In reply to Martin Peres from comment #21)
> The following is still happening. Should I create a new bug?
> 
> [  234.237101] ------------[ cut here ]------------
> [  234.237138] Unclaimed read from register 0x130090
> [  234.237206] WARNING: CPU: 2 PID: 1936 at
> drivers/gpu/drm/i915/intel_uncore.c:986 __unclaimed_reg_debug+0x3b/0x50
> [i915]
> [  234.237208] Modules linked in: vgem snd_hda_codec_hdmi
> snd_hda_codec_realtek snd_hda_codec_generic i915 x86_pkg_temp_thermal
> intel_powerclamp coretemp crct10dif_pclmul crc32_pclmul ghash_clmulni_intel
> snd_hda_intel snd_hda_codec snd_hwdep snd_hda_core snd_pcm r8169 mii
> prime_numbers mei_me mei i2c_hid pinctrl_geminilake pinctrl_intel
> [  234.237276] CPU: 2 PID: 1936 Comm: cat Tainted: G     U          
> 4.15.0-CI-CI_DRM_3736+ #1
> [  234.237279] Hardware name: Intel Corp. Geminilake/GLK RVP2 LP4SD (07),
> BIOS GELKRVPA.X64.0062.B30.1708222146 08/22/2017
> [  234.237315] RIP: 0010:__unclaimed_reg_debug+0x3b/0x50 [i915]
> [  234.237320] RSP: 0018:ffffc90000ba3d38 EFLAGS: 00010092
> [  234.237327] RAX: 0000000000000025 RBX: 0000000000000000 RCX:
> 0000000000000002
> [  234.237330] RDX: 0000000080000002 RSI: ffffffff820abf17 RDI:
> 00000000ffffffff
> [  234.237332] RBP: 0000000000130090 R08: 0000000000000000 R09:
> 0000000000000001
> [  234.237334] R10: ffffc90000ba3cd0 R11: 0000000000000002 R12:
> 0000000000000001
> [  234.237336] R13: ffff880167780ca0 R14: 0000000000000000 R15:
> 0000000000000202
> [  234.237339] FS:  00007fb4568b5700(0000) GS:ffff88017fd00000(0000)
> knlGS:0000000000000000
> [  234.237341] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [  234.237344] CR2: 000055b3f5415100 CR3: 0000000172902000 CR4:
> 0000000000340ee0
> [  234.237348] Call Trace:
> [  234.237391]  fwtable_read32+0x214/0x290 [i915]
> [  234.237429]  i915_drpc_info+0x267/0x8c0 [i915]
> [  234.237436]  ? rcu_read_lock_sched_held+0x6f/0x80
> [  234.237444]  seq_read+0xd8/0x3a0
> [  234.237452]  full_proxy_read+0x4b/0x70
> [  234.237459]  __vfs_read+0x1e/0x120
> [  234.237468]  ? entry_SYSCALL_64_fastpath+0x5/0x8f
> [  234.237472]  vfs_read+0x9e/0x150
> [  234.237477]  SyS_read+0x40/0xa0
> [  234.237483]  entry_SYSCALL_64_fastpath+0x22/0x8f
> [  234.237486] RIP: 0033:0x7fb4563e1890
> [  234.237488] RSP: 002b:00007fffec12b328 EFLAGS: 00000246
> [  234.237501] Code: 3c 01 75 30 84 db 75 2c 45 84 e4 48 c7 c0 aa 46 26 a0
> 48 c7 c6 a0 46 26 a0 48 0f 44 f0 89 ea 48 c7 c7 b3 46 26 a0 e8 15 b6 ed e0
> <0f> ff 83 2d 1c 0c 17 00 01 5b 5d 41 5c c3 0f 1f 80 00 00 00 00 
> [  234.237631] ---[ end trace 7b6e6c28539f6d16 ]---
> [  234.311753] Setting dangerous option reset - tainting kernel
> 
> https://intel-gfx-ci.01.org/tree/drm-tip/IGT_4229/shard-glkb1/
> igt at gem_ctx_create@basic.html

Martin,IGT_4229 is based on CI_DRM_3736 the fix was integrated to CI_DRM_3749
which is after your occurrence.

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