Hello, CentOS 6.8, kernel 2.6.32-642.3.1.el6.x86_64 sdhci: Secure Digital Host Controller Interface driver sdhci: Copyright(c) Pierre Ossman sdhci-pci 0000:00:10.0: SDHCI controller found [8086:2294] (rev 21) sdhci-pci 0000:00:10.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16 sdhci-pci 0000:00:10.0: Invalid iomem size. You may experience problems. <-- sdhci-pci 0000:00:10.0: setting latency timer to 64 where can I either disable loading this driver at all or define a different value for io mem size? Thanks, Walter