Add log for proof generation errors.

node/storage/src/log_store/flow_store.rs

@@ -90,6 +90,14 @@ impl FlowStore {
         }
         self.db.delete_batch_list(batch_list)
     }
+
+    pub fn get_raw_batch(&self, batch_index: u64) -> Result<Option<EntryBatch>> {
+        self.db.get_entry_batch(batch_index)
+    }
+
+    pub fn get_batch_root(&self, batch_index: u64) -> Result<Option<DataRoot>> {
+        self.db.get_batch_root(batch_index)
+    }
 }
 
 #[derive(Clone, Debug)]
@@ -575,6 +583,13 @@ impl FlowDBStore {
         }
         Ok(self.kvdb.write(tx)?)
     }
+
+    fn get_batch_root(&self, batch_index: u64) -> Result<Option<DataRoot>> {
+        Ok(self
+            .kvdb
+            .get(COL_ENTRY_BATCH_ROOT, &batch_index.to_be_bytes())?
+            .map(|v| DataRoot::from_slice(&v)))
+    }
 }
 
 #[derive(DeriveEncode, DeriveDecode, Clone, Debug)]

node/storage/src/log_store/load_chunk/chunk_data.rs

@@ -6,6 +6,7 @@ use std::mem;
 use tracing::error;
 use zgs_spec::{BYTES_PER_LOAD, BYTES_PER_SECTOR, SECTORS_PER_LOAD, SECTORS_PER_SEAL};
 
+#[derive(Debug)]
 pub enum EntryBatchData {
     Complete(Vec<u8>),
     /// All `PartialBatch`s are ordered based on `start_index`.

node/storage/src/log_store/load_chunk/mod.rs

@@ -23,7 +23,7 @@ use super::SealAnswer;
 use chunk_data::EntryBatchData;
 use seal::SealInfo;
 
-#[derive(Encode, Decode)]
+#[derive(Debug, Encode, Decode)]
 pub struct EntryBatch {
     seal: SealInfo,
     // the inner data

node/storage/src/log_store/load_chunk/seal.rs

@@ -19,7 +19,7 @@ pub struct SealContextInfo {
 type ChunkSealBitmap = WrappedBitmap<SEALS_PER_LOAD>;
 const_assert!(SEALS_PER_LOAD <= u128::BITS as usize);
 
-#[derive(Default, DeriveEncode, DeriveDecode)]
+#[derive(Debug, Default, DeriveEncode, DeriveDecode)]
 pub struct SealInfo {
     // a bitmap specify which sealing chunks have been sealed
     bitmap: ChunkSealBitmap,

node/storage/src/log_store/log_manager.rs

@@ -768,7 +768,21 @@ impl LogManager {
                     .gen_proof(flow_index as usize % PORA_CHUNK_SIZE)?,
             }
         };
-        entry_proof(&top_proof, &sub_proof)
+        let r = entry_proof(&top_proof, &sub_proof);
+        if r.is_err() {
+            let raw_batch = self.flow_store.get_raw_batch(seg_index as u64)?;
+            let db_root = self.flow_store.get_batch_root(seg_index as u64)?;
+            error!(
+                ?r,
+                ?raw_batch,
+                ?db_root,
+                ?seg_index,
+                "gen proof error: top_leaves={}, last={}",
+                merkle.pora_chunks_merkle.leaves(),
+                merkle.last_chunk_merkle.leaves()
+            );
+        }
+        r
     }
 
     #[instrument(skip(self, merkle))]