[ovirt-users] Re: USB turns off and wont come alive

I have 2 usb controllers installed via a riser card plugged into a M.2 slot. (Like those used for mining with GPU's). Everything works great for a long time, then my Windows 10 VM freezes and I lose all USB activity. LSPCI still sees the devices: 0a:00.0 USB controller: ASMedia Technology Inc. ASM1142 USB 3.1 Host Controller 0b:00.0 USB controller: ASMedia Technology Inc. ASM1142 USB 3.1 Host Controller 43:00.0 USB controller: ASMedia Technology Inc. ASM1142 USB 3.1 Host Controller 44:00.0 USB controller: ASMedia Technology Inc. ASM1142 USB 3.1 Host Controller I assume a and b are the same physical card as its supposed to have 2 channels each, same with 44 and 43. I tried for both 44 and 43 echo "1" > /sys/bus/pci/devices/0000\:43\:00.0/remove echo "1" > /sys/bus/pci/rescan echo "1" > /sys/bus/pci/devices/0000\:43\:00.0/reset This did not work. I cannot determine if its just the VM thats no longer seeing/using the hardware or if its the hardware itself. I wonder if its a power state thing as well? Nothing I plug into the card seems to be recognized. Any Suggestions?

rebooting the VM doesnt help either. It appears the hardware is functioning, but anything you plug into it isnt being detected.