Few KMS tests - dmesg-warn/dmesg-fail - WARNING:.* at drivers/gpu/drm/i915/gem/i915_gem_ttm_pm.c:\d+ i915_ttm_backup, RIP: 0010:i915_ttm_backup
https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11963/re-dg2-12/igt@kms_flip@2x-flip-vs-suspend.html
<7> [359.112623] intel_gt_set_wedged [19:33a*] @ 519ms
<4> [359.138928] ------------[ cut here ]------------
<4> [359.138932] WARNING: CPU: 1 PID: 1300 at drivers/gpu/drm/i915/gem/i915_gem_ttm_pm.c:82 i915_ttm_backup+0x28d/0x2f0 [i915]
<4> [359.139047] Modules linked in: snd_hda_codec_hdmi mei_hdcp x86_pkg_temp_thermal i915 coretemp kvm_intel kvm snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio irqbypass crct10dif_pclmul smsc75xx crc32_pclmul prime_numbers ghash_clmulni_intel snd_hda_intel ttm snd_intel_dspcfg usbnet mii e1000e drm_buddy snd_hda_codec drm_display_helper snd_hwdep ptp snd_hda_core drm_kms_helper pps_core syscopyarea mei_me snd_pcm sysfillrect sysimgblt fb_sys_fops mei intel_lpss_pci
<4> [359.139122] CPU: 1 PID: 1300 Comm: rtcwake Tainted: G W 5.19.0-CI_DRM_11963-gd0b86a718492+ #1
<4> [359.139126] Hardware name: Intel Corporation CoffeeLake Client Platform/CoffeeLake S UDIMM RVP, BIOS CNLSFWR1.R00.X220.B00.2103302221 03/30/2021
<4> [359.139128] RIP: 0010:i915_ttm_backup+0x28d/0x2f0 [i915]
<4> [359.139223] Code: ff 4c 89 ef e8 24 09 c7 e0 e9 ec fd ff ff 4c 89 ef e8 c7 dc 00 00 eb 95 be 01 00 00 00 4c 89 ef e8 68 c1 ac e0 e9 94 fe ff ff <0f> 0b e9 0c ff ff ff be 02 00 00 00 4c 89 ef e8 4f c1 ac e0 e9 7b
<4> [359.139226] RSP: 0018:ffffc90001a9fb10 EFLAGS: 00010282
<4> [359.139230] RAX: 00000000fffffffb RBX: ffff88810da4f740 RCX: 0000000000000000
<4> [359.139232] RDX: 0000000000000000 RSI: ffffffff822ee89c RDI: ffffc90001a9fab8
<4> [359.139235] RBP: 0000000000000000 R08: ffff88811056c200 R09: ffff88811056c238
<4> [359.139237] R10: 0000000000000001 R11: ffff88812a4a4c40 R12: ffffc90001a9fc70
<4> [359.139239] R13: ffff8881287e4cc0 R14: ffffc90001a9fbb0 R15: ffff8881287e4fc0
<4> [359.139241] FS: 00007f288088b540(0000) GS:ffff88845d680000(0000) knlGS:0000000000000000
<4> [359.139244] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
<4> [359.139246] CR2: 000056422fca35b8 CR3: 000000012f750003 CR4: 00000000003706e0
<4> [359.139248] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
<4> [359.139250] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
<4> [359.139252] Call Trace:
<4> [359.139255] <TASK>
<4> [359.139263] i915_gem_process_region+0x30e/0x3e0 [i915]
<4> [359.139373] i915_ttm_backup_region+0x52/0x70 [i915]
<4> [359.139468] lmem_suspend+0x3a/0x60 [i915]
<4> [359.139562] i915_gem_backup_suspend+0x73/0xa0 [i915]
<4> [359.139655] pci_pm_prepare+0x28/0x70
<4> [359.139660] dpm_prepare+0x1a9/0x630
<4> [359.139664] ? pci_legacy_resume+0x40/0x40
<4> [359.139670] dpm_suspend_start+0x15/0x80
<4> [359.139674] suspend_devices_and_enter+0x104/0xae0
<4> [359.139683] pm_suspend.cold.7+0x296/0x322
<4> [359.139688] state_store+0x7b/0xe0
<4> [359.139694] kernfs_fop_write_iter+0x121/0x1c0
<4> [359.139701] new_sync_write+0x104/0x190
<4> [359.139713] vfs_write+0x29c/0x3a0
<4> [359.139718] ksys_write+0x57/0xd0
<4> [359.139724] do_syscall_64+0x37/0x90
<4> [359.139729] entry_SYSCALL_64_after_hwframe+0x63/0xcd
<4> [359.139732] RIP: 0033:0x7f2880310104