Few suspend tests - dmesg-warn - Delta way too big!
<6> [71.297499] ACPI: EC: event unblocked
<4> [71.297581] ------------[ cut here ]------------
<4> [71.297585] Delta way too big! 18446742123563838015 ts=18446742187599947443 before=64036109428 after=64036109428 write stamp=18446742187599947443
If you just came from a suspend/resume,
please switch to the trace global clock:
echo global > /sys/kernel/debug/tracing/trace_clock
or add trace_clock=global to the kernel command line
<4> [71.297592] WARNING: CPU: 6 PID: 5273 at kernel/trace/ring_buffer.c:2744 __rb_reserve_next+0x3e8/0x410
<4> [71.297599] Modules linked in: vgem snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio amdgpu i915 mei_hdcp btusb btrtl btbcm btintel snd_hda_codec_hdmi x86_pkg_temp_thermal bluetooth coretemp snd_hda_intel crct10dif_pclmul crc32_pclmul snd_intel_dspcfg e1000e snd_hda_codec ghash_clmulni_intel snd_hwdep igb snd_hda_core ecdh_generic ecc snd_pcm ptp drm_ttm_helper pps_core ttm gpu_sched mei_me mei prime_numbers intel_lpss_pci pinctrl_sunrisepoint
<4> [71.297694] CPU: 6 PID: 5273 Comm: kworker/u16:23 Not tainted 5.14.0-rc2-CI-CI_DRM_10353+ #1
<4> [71.297698] Hardware name: Intel Corporation NUC8i7HVK/NUC8i7HVB, BIOS HNKBLi70.86A.0047.2018.0718.1706 07/18/2018
<4> [71.297700] Workqueue: events_unbound async_run_entry_fn
<4> [71.297706] RIP: 0010:__rb_reserve_next+0x3e8/0x410
<4> [71.297710] Code: 00 48 8b 4b 10 85 c0 48 8b 73 08 48 c7 c0 45 9a 30 82 4c 8b 43 18 48 0f 44 c2 48 8b 13 48 c7 c7 e8 9c 2f 82 50 e8 1e bf 8e 00 <0f> 0b 58 44 8b 54 24 04 eb 91 83 ca 0a 48 83 43 20 08 89 53 30 e9
<4> [71.297713] RSP: 0000:ffffc90001057bd8 EFLAGS: 00010286
<4> [71.297717] RAX: 0000000000000000 RBX: ffffc90001057c20 RCX: 0000000000000004
<4> [71.297720] RDX: 0000000080000004 RSI: ffffffff8239141f RDI: 00000000ffffffff
<4> [71.297722] RBP: ffff888100e56400 R08: 0000000000000001 R09: 0000000000000001
<4> [71.297724] R10: 000000006fc2a926 R11: 00000000a9e3d188 R12: ffff888136d16040
<4> [71.297727] R13: ffff888136417cbc R14: 0000000000000038 R15: 0000000000000cac
<4> [71.297729] FS: 0000000000000000(0000) GS:ffff888276900000(0000) knlGS:0000000000000000
<4> [71.297732] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
<4> [71.297734] CR2: 0000000000000000 CR3: 0000000005612001 CR4: 00000000003706e0
<4> [71.297737] Call Trace:
<4> [71.297744] ring_buffer_lock_reserve+0xfe/0x3a0
<4> [71.297754] trace_vbprintk+0xc1/0x230
<4> [71.297757] ? __intel_gt_reset+0x6a/0xf0 [i915]
<5> [71.297826] usb usb1: root hub lost power or was reset
<5> [71.297830] usb usb2: root hub lost power or was reset
<4> [71.297852] ? gen6_reset_engines+0xb0/0xb0 [i915]
<4> [71.297942] __trace_bprintk+0x6e/0x80
<4> [71.297948] ? _raw_spin_unlock_irqrestore+0x38/0x60
<4> [71.297956] __intel_gt_reset+0x80/0xf0 [i915]
<4> [71.298045] ? pci_pm_thaw+0x80/0x80
<4> [71.298051] i915_drm_resume+0xea/0x110 [i915]
<4> [71.298128] dpm_run_callback+0x5c/0x240
<4> [71.298134] device_resume+0xb2/0x1e0
<4> [71.298140] ? pm_dev_err+0x25/0x25
<4> [71.298150] async_resume+0x14/0x30
<4> [71.298153] async_run_entry_fn+0x2b/0x130
<4> [71.298159] process_one_work+0x270/0x5c0
<4> [71.298170] worker_thread+0x37/0x390
<4> [71.298175] ? process_one_work+0x5c0/0x5c0
<4> [71.298179] kthread+0x13d/0x170
<4> [71.298183] ? set_kthread_struct+0x40/0x40
<4> [71.298189] ret_from_fork+0x22/0x30
<4> [71.298204] irq event stamp: 983
<4> [71.298206] hardirqs last enabled at (991): [<ffffffff8112fc05>] vprintk_emit+0x375/0x3a0
<4> [71.298211] hardirqs last disabled at (998): [<ffffffff8112fbb4>] vprintk_emit+0x324/0x3a0
<4> [71.298216] softirqs last enabled at (342): [<ffffffff81e0032d>] __do_softirq+0x32d/0x493
<4> [71.298221] softirqs last disabled at (337): [<ffffffff810b74d8>] irq_exit_rcu+0xe8/0xf0
<4> [71.298226] ---[ end trace 760ceeb1aeb54e8b ]---Edited by Tejasree Illipilli