FTL诊断：探针窗口前移至f_mount前+页内容指纹（定位挂载期坏读来源）

2026-09-20 05:16:27 +08:00
parent 0669471178
commit f05b056318
2 changed files with 10 additions and 2 deletions
@@ -105,8 +105,14 @@ static int ftl_read_page(dhara_sector_t lpn) {
    s_cached_lpn = lpn;
    s_cache_dirty = 0;
    if (s_tree_probe_log) {
-        DBG_INFO("ftl read LPN=%lu (binding see nand read lines)",
-                 (unsigned long)lpn);
+        /* 内容指纹：前 8 字节（BPB=33 52 / FAT32=F8 FF.. / 擦除=FF FF..）
+         * 半新半旧混合页在此直接现形 */
+        DBG_INFO("ftl t %lu read LPN=%lu: %02X %02X %02X %02X %02X %02X %02X %02X",
+                 (unsigned long)HAL_GetTick(), (unsigned long)lpn,
+                 (unsigned int)s_cache_buf[0], (unsigned int)s_cache_buf[1],
+                 (unsigned int)s_cache_buf[2], (unsigned int)s_cache_buf[3],
+                 (unsigned int)s_cache_buf[4], (unsigned int)s_cache_buf[5],
+                 (unsigned int)s_cache_buf[6], (unsigned int)s_cache_buf[7]);
    }
    return GD5F_OK;
 }