diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/ObjectDirectory.java b/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/ObjectDirectory.java
index 9b4323e..ad5afbf 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/ObjectDirectory.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/ObjectDirectory.java
@@ -359,6 +359,7 @@ boolean hasPackedObject(AnyObjectId objectId) {
 					// The hasObject call should have only touched the index,
 					// so any failure here indicates the index is unreadable
 					// by this process, and the pack is likewise not readable.
+					LOG.warn("Unable to read packfile " + p.getPackFile(), e);
 					removePack(p);
 				}
 			}
@@ -651,6 +652,7 @@ private void handlePackError(IOException e, PackFile p) {
 		if ((e instanceof CorruptObjectException)
 				|| (e instanceof PackInvalidException)) {
 			warnTmpl = JGitText.get().corruptPack;
+			LOG.warn("Packfile " + p.getPackFile() + " is corrupted", e);
 			// Assume the pack is corrupted, and remove it from the list.
 			removePack(p);
 		} else if (e instanceof FileNotFoundException) {