David Laight wrote on 08/09/16 15:30: > Try with raw writes to the disk, rather than going through the filesystem. > That will remove effects caused by the alignment of the filesystem and the > size of the filesystem blocks. Ok, I did dd if=768MB.test of=/dev/sdb oflag=direct bs=1M dd if=/dev/sdb bs=1M count=768 iflag=direct|sha1sum with the differently sized files from before (and a 2GB file) now... I wrote them all once and the larger files (768MB, 2GB) multiple times, but only the 768MB and the 2GB file failed once yet: 768MB.test: 0x2F58B000-0x2F58FFFF This one occured with "oflag=nonblock,seek_bytes seek=4G" 2GB.test: 0x55A01000-0x55A07FFF With kind regards, Wolfgang -- Wolfgang Breyha <wbreyha@xxxxxxx> | http://www.blafasel.at/ Vienna University Computer Center | Austria -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
