open("/dev/sda", O_RDONLY|O_NONBLOCK)   = 3
fcntl(3, F_SETFD, FD_CLOEXEC)           = 0
ioctl(3, SG_IO, {'S', SG_DXFER_FROM_DEV, cmd[6]=[12, 00, 00, 00, 24, 00], mx_sb_len=32, iovec_count=0, dxfer_len=36, timeout=20000, flags=0, data[36]=["52[ATA     WDC WD5000LPVX-0"...], status=00, masked_status=00, sb[0]=[], host_status=0, driver_status=0, resid=0, duration=0, info=0}) = 0
ioctl(3, SG_IO, {'S', SG_DXFER_FROM_DEV, cmd[16]=[85, 08, 0e, 00, 00, 00, 01, 00, 00, 00, 00, 00, 00, 00, ec, 00], mx_sb_len=32, iovec_count=0, dxfer_len=512, timeout=20000, flags=0, data[512]=["zB377?731020?    W -DXW11"...], status=00, masked_status=00, sb[0]=[], host_status=0, driver_status=0, resid=0, duration=0, info=0}) = 0
ioctl(3, SG_IO, {'S', SG_DXFER_FROM_DEV, cmd[16]=[85, 08, 0e, 00, 00, 00, 01, 00, 00, 00, 00, 00, 00, 00, ec, 00], mx_sb_len=32, iovec_count=0, dxfer_len=512, timeout=20000, flags=0, data[512]=["zB377?731020?    W -DXW11"...], status=00, masked_status=00, sb[0]=[], host_status=0, driver_status=0, resid=0, duration=0, info=0}) = 0