all: activate pbss as experimental feature (#26274)

* all: activate pbss

* core/rawdb: fix compilation error

* cma, core, eth, les, trie: address comments

* cmd, core, eth, trie: polish code

* core, cmd, eth: address comments

* cmd, core, eth, les, light, tests: address comment

* cmd/utils: shorten log message

* trie/triedb/pathdb: limit node buffer size to 1gb

* cmd/utils: fix opening non-existing db

* cmd/utils: rename flag name

* cmd, core: group chain history flags and fix tests

* core, eth, trie: fix memory leak in snapshot generation

* cmd, eth, internal: deprecate flags

* all: enable state tests for pathdb, fixes

* cmd, core: polish code

* trie/triedb/pathdb: limit the node buffer size to 256mb

---------

Co-authored-by: Martin Holst Swende <martin@swende.se>
Co-authored-by: Péter Szilágyi <peterke@gmail.com>

eth/tracers/internal/tracetest/calltrace_test.go

@@ -137,8 +137,10 @@ func testCallTracer(tracerName string, dirPath string, t *testing.T) {
 					GasLimit:    uint64(test.Context.GasLimit),
 					BaseFee:     test.Genesis.BaseFee,
 				}
-				_, statedb = tests.MakePreState(rawdb.NewMemoryDatabase(), test.Genesis.Alloc, false)
+				triedb, _, statedb = tests.MakePreState(rawdb.NewMemoryDatabase(), test.Genesis.Alloc, false, rawdb.HashScheme)
 			)
+			triedb.Close()
+
 			tracer, err := tracers.DefaultDirectory.New(tracerName, new(tracers.Context), test.TracerConfig)
 			if err != nil {
 				t.Fatalf("failed to create call tracer: %v", err)
@@ -237,7 +239,8 @@ func benchTracer(tracerName string, test *callTracerTest, b *testing.B) {
 		Difficulty:  (*big.Int)(test.Context.Difficulty),
 		GasLimit:    uint64(test.Context.GasLimit),
 	}
-	_, statedb := tests.MakePreState(rawdb.NewMemoryDatabase(), test.Genesis.Alloc, false)
+	triedb, _, statedb := tests.MakePreState(rawdb.NewMemoryDatabase(), test.Genesis.Alloc, false, rawdb.HashScheme)
+	defer triedb.Close()
 
 	b.ReportAllocs()
 	b.ResetTimer()
@@ -363,7 +366,7 @@ func TestInternals(t *testing.T) {
 		},
 	} {
 		t.Run(tc.name, func(t *testing.T) {
-			_, statedb := tests.MakePreState(rawdb.NewMemoryDatabase(),
+			triedb, _, statedb := tests.MakePreState(rawdb.NewMemoryDatabase(),
 				core.GenesisAlloc{
 					to: core.GenesisAccount{
 						Code: tc.code,
@@ -371,7 +374,9 @@ func TestInternals(t *testing.T) {
 					origin: core.GenesisAccount{
 						Balance: big.NewInt(500000000000000),
 					},
-				}, false)
+				}, false, rawdb.HashScheme)
+			defer triedb.Close()
+
 			evm := vm.NewEVM(context, txContext, statedb, params.MainnetChainConfig, vm.Config{Tracer: tc.tracer})
 			msg := &core.Message{
 				To:                &to,

eth/tracers/internal/tracetest/flat_calltrace_test.go

@@ -100,7 +100,8 @@ func flatCallTracerTestRunner(tracerName string, filename string, dirPath string
 		Difficulty:  (*big.Int)(test.Context.Difficulty),
 		GasLimit:    uint64(test.Context.GasLimit),
 	}
-	_, statedb := tests.MakePreState(rawdb.NewMemoryDatabase(), test.Genesis.Alloc, false)
+	triedb, _, statedb := tests.MakePreState(rawdb.NewMemoryDatabase(), test.Genesis.Alloc, false, rawdb.HashScheme)
+	defer triedb.Close()
 
 	// Create the tracer, the EVM environment and run it
 	tracer, err := tracers.DefaultDirectory.New(tracerName, new(tracers.Context), test.TracerConfig)

eth/tracers/internal/tracetest/prestate_test.go

@@ -108,8 +108,10 @@ func testPrestateDiffTracer(tracerName string, dirPath string, t *testing.T) {
 					GasLimit:    uint64(test.Context.GasLimit),
 					BaseFee:     test.Genesis.BaseFee,
 				}
-				_, statedb = tests.MakePreState(rawdb.NewMemoryDatabase(), test.Genesis.Alloc, false)
+				triedb, _, statedb = tests.MakePreState(rawdb.NewMemoryDatabase(), test.Genesis.Alloc, false, rawdb.HashScheme)
 			)
+			defer triedb.Close()
+
 			tracer, err := tracers.DefaultDirectory.New(tracerName, new(tracers.Context), test.TracerConfig)
 			if err != nil {
 				t.Fatalf("failed to create call tracer: %v", err)

eth/tracers/tracers_test.go

@@ -79,7 +79,9 @@ func BenchmarkTransactionTrace(b *testing.B) {
 		Code:    []byte{},
 		Balance: big.NewInt(500000000000000),
 	}
-	_, statedb := tests.MakePreState(rawdb.NewMemoryDatabase(), alloc, false)
+	triedb, _, statedb := tests.MakePreState(rawdb.NewMemoryDatabase(), alloc, false, rawdb.HashScheme)
+	defer triedb.Close()
+
 	// Create the tracer, the EVM environment and run it
 	tracer := logger.NewStructLogger(&logger.Config{
 		Debug: false,