> I can't turn on CONFIG_IOMMU_LEAK and CONFIG_IOMMU_DEBUG because > 2.6.26.1 not have such options in .config. Maybe git kernel have this > options? 2.6.26.1 has these options. Probably you don't enable DEBUG_KERNEL. But the feature is not much useful, as I said. > Bug triggered when i try mount sata drive on sata_nv and usb > hdd on echi_hcd. In all other cases i have no problem. One of them might cause you problem. As I wrote in the previous mail, we need to know which driver is bad. 1. build a kernel without usb storage or any nics. Then do lots of I/Os for minutes to see if sata_nv is fine. 2. if sata_ntv seems to be fine, build a kernel without any nics (I guess your box can't boot without sata_nv). Then do lots of I/Os for usb storage. 3. If the both is fine, you could have other bad driver (might be nic). -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html