Hello,
Please close this case, false alarm, the debian/kernel is OK, appears to be an HW issue that needs a workaround.
I've sent a note to linux-kernel@
Jan 5 06:18:52 atom kernel: [295306.524933] pcieport 0000:00:06.0: AER: Corrected error received: 0000:00:06.0
Jan 5 06:18:52 atom kernel: [295306.524979] pcieport 0000:00:06.0: PCIe Bus Error: severity=Corrected, type=Physical Layer, (Receiver ID)
Jan 5 06:18:52 atom kernel: [295306.525004] pcieport 0000:00:06.0: device [8086:a74d] error status/mask=00000001/00002000
Jan 5 06:18:52 atom kernel: [295306.525027] pcieport 0000:00:06.0: [ 0] RxErr (First)
Jan 5 06:19:22 atom kernel: [295336.554420] nvme nvme0: controller is down; will reset: CSTS=0xffffffff, PCI_STATUS=0xffff
Jan 5 06:19:22 atom kernel: [295336.554469] nvme nvme0: Does your device have a faulty power saving mode enabled?
Jan 5 06:19:22 atom kernel: [295336.554489] nvme nvme0: Try "nvme_core.default_ps_max_latency_us=0 pcie_aspm=off" and report a bug
Jan 5 06:19:22 atom kernel: [295336.614521] nvme 0000:03:00.0: Unable to change power state from D3cold to D0, device inaccessible
Jan 5 06:19:22 atom kernel: [295336.614898] nvme nvme0: Removing after probe failure status: -19
Jan 5 06:19:22 atom kernel: [295336.630497] nvme0n1: detected capacity change from 7814037168 to 0
Jan 5 06:19:22 atom kernel: [295336.630502] BTRFS error (device nvme0n1p2): bdev /dev/nvme0n1p2 errs: wr 1, rd 0, flush 0, corrupt 0, gen 0
Jan 5 06:19:22 atom kernel: [295336.630513] BTRFS error (device nvme0n1p2): bdev /dev/nvme0n1p2 errs: wr 2, rd 0, flush 0, corrupt 0, gen 0
Jan 5 06:19:22 atom kernel: [295336.630542] BTRFS error (device nvme0n1p2): bdev /dev/nvme0n1p2 errs: wr 3, rd 0, flush 0, corrupt 0, gen 0
Regards,
Justin