ADL_P : igt@kms_pipe_crc_basic@suspend-read-crc - dmesg-warn - *ERROR* Lost access to MMIO BAR; all registers now read back as 0xFFFFFFFF!
<7> [700.700235] i915 0000:03:00.0: [drm:intel_power_domains_init [i915]] Allowed DC state mask 40000009
<3> [700.700525] i915 0000:03:00.0: [drm] *ERROR* Lost access to MMIO BAR; all registers now read back as 0xFFFFFFFF!
<7> [700.700552] i915 0000:03:00.0: [drm:intel_uncore_init_mmio [i915]] unclaimed mmio detected on uncore init, clearing
<3> [700.700641] i915 0000:03:00.0: [drm] *ERROR* Lost access to MMIO BAR; all registers now read back as 0xFFFFFFFF!
<7> [700.700660] i915 0000:03:00.0: [drm:fwtable_read32 [i915]] Unclaimed access detected before read from register 0x51000
<3> [700.700735] i915 0000:03:00.0: [drm] *ERROR* Lost access to MMIO BAR; all registers now read back as 0xFFFFFFFF!
<4> [700.700738] ------------[ cut here ]------------
<4> [700.700739] i915 0000:03:00.0: Unclaimed read from register 0x51000
<4> [700.700752] WARNING: CPU: 3 PID: 6422 at drivers/gpu/drm/i915/intel_uncore.c:1511 __unclaimed_reg_debug+0x64/0x80 [i915]
<4> [700.700824] Modules linked in: i915(+) mei_hdcp drm_display_helper drm_kms_helper vgem drm_shmem_helper drm_ttm_helper gpu_sched fuse btusb btrtl btbcm btintel bluetooth ecdh_generic ecc snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio x86_pkg_temp_thermal coretemp kvm_intel ttm drm_buddy snd_intel_dspcfg kvm snd_hda_codec irqbypass snd_hwdep crct10dif_pclmul e1000e syscopyarea sysfillrect atlantic snd_hda_core i2c_i801 sysimgblt crc32_pclmul snd_pcm mei_me i2c_smbus ghash_clmulni_intel ptp fb_sys_fops prime_numbers pps_core mei [last unloaded: dmabuf_selftests]
<4> [700.700868] CPU: 3 PID: 6422 Comm: i915_suspend Tainted: G U 5.18.0-rc7-CI_DRM_11661-gf0d63dbb9c4e+ #1
<4> [700.700870] Hardware name: Gigabyte Technology Co., Ltd. GB-Z390 Garuda/GB-Z390 Garuda-CF, BIOS IG1c 11/19/2019
<4> [700.700871] RIP: 0010:__unclaimed_reg_debug+0x64/0x80 [i915]
<4> [700.700942] Code: 08 4c 8b 6f 50 4d 85 ed 75 03 4c 8b 2f e8 34 0b 2f e1 41 89 e8 4c 89 e1 4c 89 ea 48 89 c6 48 c7 c7 d8 36 68 a0 e8 61 b1 66 e1 <0f> 0b 48 8b 43 08 83 a8 74 0d 00 00 01 eb a4 0f 1f 00 66 2e 0f 1f
<4> [700.700944] RSP: 0018:ffffc90000ef7a20 EFLAGS: 00010082
<4> [700.700946] RAX: 0000000000000000 RBX: ffff8881f7818ef0 RCX: 0000000000000003
<4> [700.700948] RDX: 0000000080000003 RSI: ffffffff82316a95 RDI: 00000000ffffffff
<4> [700.700949] RBP: 0000000000051000 R08: 0000000000000000 R09: c0000000ffffc0eb
<4> [700.700950] R10: 000000000007acd0 R11: ffffc90000ef7840 R12: ffffffffa06d1c72
<4> [700.700951] R13: ffff888102973150 R14: 00000000ffffffff R15: 0000000000000202
<4> [700.700953] FS: 00007f3a3be5bc00(0000) GS:ffff8884ad780000(0000) knlGS:0000000000000000
<4> [700.700954] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
<4> [700.700956] CR2: 000055bd641802a0 CR3: 000000016ab1c005 CR4: 00000000003706e0
<4> [700.700957] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
<4> [700.700958] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
<4> [700.700960] Call Trace:
<4> [700.700961] <TASK>
<4> [700.700963] fwtable_read32+0x245/0x2d0 [i915]Edited by LAKSHMINARAYANA VUDUM