diff --git a/src/overlaybd/cache/full_file_cache/cache_pool.cpp b/src/overlaybd/cache/full_file_cache/cache_pool.cpp
index 25761dbc..006d860f 100644
--- a/src/overlaybd/cache/full_file_cache/cache_pool.cpp
+++ b/src/overlaybd/cache/full_file_cache/cache_pool.cpp
@@ -203,13 +203,21 @@ void FileCachePool::eviction() {
         evictByCache = totalUsed_ - waterMark_;
     }
 
-    auto actualEvict = static_cast<int64_t>(std::max(evictByCache, evictByDisk));
+    auto actualEvict = std::min(
+        static_cast<int64_t>(std::max(evictByCache, evictByDisk)),
+        totalUsed_
+    );
+
     if (actualEvict <= 0) {
         return;
     }
 
     isFull_ = true;
 
+    if (!lru_.empty() && !exit_) {
+        LOG_AUDIT("eviction", VALUE(actualEvict), VALUE(evictByCache), VALUE(evictByDisk), VALUE(totalUsed_));
+    }
+
     while (actualEvict > 0 && !lru_.empty() && !exit_) {
         auto fileIter = lru_.back();
         const auto &fileName = fileIter->first;