r0 = openat$cdrom(0xffffffffffffff9c, &(0x7f0000000180), 0x40800, 0x0) ioctl$CDROMPLAYTRKIND(r0, 0x5304, &(0x7f0000000000)) socket$inet6_udp(0xa, 0x2, 0x0) ioctl$BTRFS_IOC_GET_SUBVOL_ROOTREF(0xffffffffffffffff, 0xd000943d, 0x0)