dup(0xffffffffffffffff)
ioctl$BTRFS_IOC_GET_SUBVOL_INFO(0xffffffffffffffff, 0x81f8943c, 0x0)
r0 = openat$sr(0xffffffffffffff9c, &(0x7f0000000040), 0x1ed982, 0x0)
ioctl$CDROMPLAYBLK(r0, 0x5317, &(0x7f0000000200))