https://bugzilla.kernel.org/show_bug.cgi?id=215742

--- Comment #21 from Daniel Drake (dr...@endlessm.com) ---
Uploading 5 lspci dumps from this procedure:

  lspci -vvxxxxs 00:06.0 > 1.pci.txt
  echo "0000:01:00.0" > /sys/bus/pci/drivers/nvme/unbind
  echo "0000:00:06.0" > /sys/bus/pci/drivers/pcieport/unbind
  lspci -vvxxxxs 00:06.0 > 2.pci.txt
  setpci -s 00:06.0 CAP_PM+4.b=03 # D3hot
  acpidbg -b "execute \_SB.PC00.PEG0.PXP._OFF"
  acpidbg -b "execute \_SB.PC00.PEG0.PXP._ON"
  setpci -s 00:06.0 CAP_PM+4.b=0 # D0
  lspci -vvxxxxs 00:06.0 > 3.pci.txt
  echo "0000:00:06.0" > /sys/bus/pci/drivers/pcieport/bind
  lspci -vvxxxxs 00:06.0 > 4.pci.txt
  echo "0000:01:00.0" > /sys/bus/pci/drivers/nvme/bind
  # NVMe probe fails here with -ENODEV
  lspci -vvxxxxs 00:06.0 > 5.pci.txt

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