Forwarding to NVMe folks, lists for visibility. ----- Forwarded message from bugzilla-daemon@xxxxxxxxxx ----- https://bugzilla.kernel.org/show_bug.cgi?id=217251 ... Created attachment 304031 --> https://bugzilla.kernel.org/attachment.cgi?id=304031&action=edit the tracing of nvme_pci_enable() during re-insertion Hi, There is a JHL7540-based device that may host a NVMe device. After the first insertion a nvme drive is properly discovered and handled by the relevant modules. Once disconnected any further attempts are not successful. The device is visible on a PCI bus, but nvme_pci_enable() ends up calling pci_disable_device() every time; the runtime PM status of the device is "suspended", the power status of the 04:01.0 PCI bridge is D3. Preventing the device from being power managed ("on" -> /sys/devices/../power/control) combined with device removal and pci rescan changes nothing. A host reboot restores the initial state. I would appreciate any suggestions how to debug it further.
