> > Occasionally we see crash at boot too without even reaching stage of > loading xhci-pci.ko driver. > > Log is below. Is this can be because of again uPD connected on PCIe > bus (through PCIe switch)? > > [ 8.263117] Unhandled fault: imprecise external abort (0x1406) at 0xfaf06a5b Looks like a hardware issue on your board, like PCIe accesses sometimes fail. Out of my scope, sorry. Anyway, try with PM disabled. Best regards Carsten
