diff --git a/velox/common/memory/MmapAllocator.cpp b/velox/common/memory/MmapAllocator.cpp
index 65d5abe7aa5df..1aa9e0643d790 100644
--- a/velox/common/memory/MmapAllocator.cpp
+++ b/velox/common/memory/MmapAllocator.cpp
@@ -345,6 +345,7 @@ bool MmapAllocator::allocateContiguousImpl(
         (useMmapArena_ ? "true" : "false"),
         folly::errnoStr(errno));
     VELOX_MEM_LOG(ERROR) << errorMsg;
+    VELOX_MEM_LOG(ERROR) << toString();
     setAllocatorFailureMessage(errorMsg);
     // If the mmap failed, we have unmapped former 'allocation' and the extra to
     // be mapped.