I just tried running btrsfck without enough right to open the device, i got the same : a segfault. I also got the segfault taking a unknow device. Please display a message like : "Unknow device or file, you may not have enough rights to open it" -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html