From 5629f2668c69149bf3d9d8e2a25bb32a2648606e Mon Sep 17 00:00:00 2001
From: Nick Craig-Wood <nick@craig-wood.com>
Date: Mon, 3 Aug 2026 21:03:32 +0100
Subject: [PATCH] overview: fix "internal error: no overview data found" on 32
 bit architectures - fixes #9723

The precision field in the backend overview YAML files can hold
fs.ModTimeNotSupported (100 years in nanoseconds) which overflows int
on 32 bit platforms, making the YAML for those backends fail to parse
and causing rclone to log 18 internal errors on every invocation.

Use int64 for the precision field and add a test that parses every
embedded backend YAML file so this is caught on 32 bit test runs.
---
 backend/overview/overview.go      |  2 +-
 backend/overview/overview_test.go | 16 ++++++++++++++++
 2 files changed, 17 insertions(+), 1 deletion(-)

diff --git a/backend/overview/overview.go b/backend/overview/overview.go
index 11af24fd3..ebf068e7b 100644
--- a/backend/overview/overview.go
+++ b/backend/overview/overview.go
@@ -26,7 +26,7 @@ type BackendConfig struct {
 	Remote           string   `yaml:"remote"`
 	Features         []string `yaml:"features"`
 	Hashes           []string `yaml:"hashes"`
-	Precision        int      `yaml:"precision"`
+	Precision        int64    `yaml:"precision"`
 }
 
 // GetBackendConfig from docs/data/backends
diff --git a/backend/overview/overview_test.go b/backend/overview/overview_test.go
index f7441bfb8..260a0ce72 100644
--- a/backend/overview/overview_test.go
+++ b/backend/overview/overview_test.go
@@ -1,8 +1,10 @@
 package overview
 
 import (
+	"strings"
 	"testing"
 
+	"github.com/rclone/rclone/docs/data/backends"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 )
@@ -53,3 +55,17 @@ func TestGetBackendConfig(t *testing.T) {
 	assert.Equal(t, expectedMemoryConfig, conf, "parsed memory.yaml should match")
 
 }
+
+// Check every embedded backend YAML file parses on all architectures
+func TestGetBackendConfigAll(t *testing.T) {
+	entries, err := backends.BackendFS.ReadDir(".")
+	require.NoError(t, err)
+	require.NotEmpty(t, entries)
+
+	for _, entry := range entries {
+		name := strings.TrimSuffix(entry.Name(), ".yaml")
+		conf, err := GetBackendConfig(name)
+		assert.NoError(t, err, "failed to load %s", entry.Name())
+		assert.NotNil(t, conf)
+	}
+}