r0 = socket$inet6_tcp(0xa, 0x1, 0x0)
bind$inet6(r0, &(0x7f00000000c0)={0xa, 0x4e20, 0x0, @loopback}, 0x1c)
setsockopt$inet6_tcp_int(r0, 0x6, 0x2, &(0x7f0000000100)=0x1ff, 0x4)
getpeername$inet6(0xffffffffffffffff, 0x0, 0x0)
connect$inet6(r0, &(0x7f0000000000)={0xa, 0x4e20, 0x0, @empty}, 0x1c)
ioctl$BTRFS_IOC_GET_SUBVOL_ROOTREF(0xffffffffffffffff, 0xd000943d, 0x0)
setsockopt$sock_int(r0, 0x1, 0x8, &(0x7f0000002ec0), 0x4)
dup(0xffffffffffffffff)
sendmsg$inet6(r0, &(0x7f00000006c0)={0x0, 0x0, &(0x7f0000000540)=[{&(0x7f00000001c0)="cf", 0xfffffdef}], 0x1}, 0x10044001)
recvfrom$inet6(r0, &(0x7f0000001700)=""/4099, 0xffffffc9, 0xcd04, 0x0, 0xfffffffffffffed7)