diff -uNr a/bitcoin/src/init.cpp b/bitcoin/src/init.cpp
--- a/bitcoin/src/init.cpp 971b82be435c99a1af9d5cacc9c05af7616f4af7ee1466efacd46d41eddc1c4d7da2fdb4a302aab7c99933d33ad2d613f3bfbe76fec67a71c6d4d1fe14ac142d
+++ b/bitcoin/src/init.cpp 3ad5a434f08b5029a39bb0e57216a37ae0047caf1f05cb2984796e9c80fc4ceb9fb9ffe3ca067c9bffb12ffe465e3d92408a79a5e940c66253a358f393b6c29f
@@ -262,8 +262,6 @@
             fprintf(stderr, "Error: setsid() returned %d errno %d\n", sid, errno);
     }
 
-    if (!fDebug && !pszSetDataDir[0])
-        ShrinkDebugFile();
     printf("\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n");
     printf("Bitcoin version %s\n", FormatFullVersion().c_str());
     printf("Default data directory %s\n", GetDefaultDataDir().c_str());
diff -uNr a/bitcoin/src/util.cpp b/bitcoin/src/util.cpp
--- a/bitcoin/src/util.cpp 66a8ac388136aceac7d24bd73c18b06445c2580849dd6c548d6684b5f1e9c19eafd3f71427476fd982383dcfd0425f34ce524eac1d8320fd990a28a1e4933288
+++ b/bitcoin/src/util.cpp 737f20496467f30d16567d63d809fe08641d524903ae5eb425a9d209da2e9524195d7b3364bf723bce428621344cc6c4861c58d601bfcd93b2af50c537d5d038
@@ -764,35 +764,6 @@
     return nFilesize;
 }
 
-void ShrinkDebugFile()
-{
-    // Scroll debug.log if it's getting too big
-    string strFile = GetDataDir() + "/debug.log";
-    FILE* file = fopen(strFile.c_str(), "r");
-    if (file && GetFilesize(file) > 10 * 1000000)
-    {
-        // Restart the file with some of the end
-        char pch[200000];
-        fseek(file, -sizeof(pch), SEEK_END);
-        int nBytes = fread(pch, 1, sizeof(pch), file);
-        fclose(file);
-
-        file = fopen(strFile.c_str(), "w");
-        if (file)
-        {
-            fwrite(pch, 1, nBytes, file);
-            fclose(file);
-        }
-    }
-}
-
-
-
-
-
-
-
-
 //
 // "Never go to sea with two chronometers; take one or three."
 // Our three time sources are:
diff -uNr a/bitcoin/src/util.h b/bitcoin/src/util.h
--- a/bitcoin/src/util.h f0c21c349b56516feac63c9cf8018c82b26583ad290a4b3610965e5a5a703d116671b1ef270395b8289c170b603630b5b7e493725e420e187ba1fbd326061ff5
+++ b/bitcoin/src/util.h e217371b4da3b8f7b7fb1acd0b281f361de3854e91af884bf70cb39267075a6be1bb504dc9e4d3eebee60ecaf371ac8e83daf88f69569a14c53fb189c4871a9f
@@ -156,7 +156,6 @@
 void ReadConfigFile(std::map<std::string, std::string>& mapSettingsRet, std::map<std::string, std::vector<std::string> >& mapMultiSettingsRet);
 std::string GetDefaultDataDir();
 std::string GetDataDir();
-void ShrinkDebugFile();
 int GetRandInt(int nMax);
 uint64 GetRand(uint64 nMax);
 int64 GetTime();