diff --git a/libboard_zynq/src/eth/rx.rs b/libboard_zynq/src/eth/rx.rs
index e2d9396..25fd32e 100644
--- a/libboard_zynq/src/eth/rx.rs
+++ b/libboard_zynq/src/eth/rx.rs
@@ -59,7 +59,7 @@ register_bit!(desc_word1, global_broadcast, 31);
 #[repr(C)]
 pub struct DescList {
     list: UncachedSlice<DescEntry>,
-    buffers: Vec<Buffer>,
+    buffers: UncachedSlice<Buffer>,
     next: usize,
 }
 
@@ -67,7 +67,8 @@ impl DescList {
     pub fn new(size: usize) -> Self {
         let mut list = UncachedSlice::new(size, || DescEntry::zeroed())
             .unwrap();
-        let mut buffers = vec![Buffer::new(); size];
+        let mut buffers = UncachedSlice::new(size, || Buffer::new())
+            .unwrap();
 
         let last = list.len().min(buffers.len()) - 1;
         for (i, (entry, buffer)) in list.iter_mut().zip(buffers.iter_mut()).enumerate() {
@@ -83,8 +84,8 @@ impl DescList {
             entry.word1.write(
                 DescWord1::zeroed()
             );
-            l2cache().invalidate_slice(&mut buffer[..]);
-            dcci_slice(&buffer[..]);
+            // l2cache().invalidate_slice(&mut buffer[..]);
+            // dcci_slice(&buffer[..]);
         }
 
         DescList {
@@ -141,10 +142,10 @@ pub struct PktRef<'a> {
 
 impl<'a> Drop for PktRef<'a> {
     fn drop(&mut self) {
-        // Flush buffer from cache, to be filled by the peripheral
-        // before next read
-        l2cache().invalidate_slice(self.buffer);
-        dcci_slice(self.buffer);
+        // // Flush buffer from cache, to be filled by the peripheral
+        // // before next read
+        // l2cache().invalidate_slice(self.buffer);
+        // dcci_slice(self.buffer);
 
         self.entry.word0.modify(|_, w| w.used(false));
         dmb();
diff --git a/libboard_zynq/src/eth/tx.rs b/libboard_zynq/src/eth/tx.rs
index fd8ec67..830c56c 100644
--- a/libboard_zynq/src/eth/tx.rs
+++ b/libboard_zynq/src/eth/tx.rs
@@ -1,6 +1,7 @@
 use core::ops::{Deref, DerefMut};
 use alloc::{vec, vec::Vec};
 use libcortex_a9::{asm::dmb, cache::dcc_slice, UncachedSlice};
+//use libcortex_a9::{asm::*, cache::*, UncachedSlice};
 use libregister::*;
 use log::{debug, warn};
 use crate::l2cache;
@@ -46,7 +47,7 @@ pub const DESCS: usize = 8;
 #[repr(C)]
 pub struct DescList {
     list: UncachedSlice<DescEntry>,
-    buffers: Vec<Buffer>,
+    buffers: UncachedSlice<Buffer>,
     next: usize,
 }
 
@@ -54,7 +55,8 @@ impl DescList {
     pub fn new(size: usize) -> Self {
         let mut list = UncachedSlice::new(size, || DescEntry::zeroed())
             .unwrap();
-        let mut buffers = vec![Buffer::new(); size];
+        let mut buffers = UncachedSlice::new(size, || Buffer::new())
+            .unwrap();
 
         let last = list.len().min(buffers.len()) - 1;
         // Sending seems to not work properly with only one packet
@@ -133,9 +135,9 @@ pub struct PktRef<'a> {
 
 impl<'a> Drop for PktRef<'a> {
     fn drop(&mut self) {
-        // Write back all dirty cachelines of packet buffer
-        dcc_slice(self.buffer);
-        l2cache().clean_slice(self.buffer);
+        // // Write back all dirty cachelines of packet buffer
+        // dcc_slice(self.buffer);
+        // l2cache().clean_slice(self.buffer);
 
         self.entry.word1.modify(|_, w| w.used(false));
         dmb();