diff --git a/debuggers/common/miframestackmodel.cpp b/debuggers/common/miframestackmodel.cpp
--- a/debuggers/common/miframestackmodel.cpp
+++ b/debuggers/common/miframestackmodel.cpp
@@ -26,6 +26,8 @@
 
 #include <KLocalizedString>
 
+#include <algorithm>
+
 using namespace KDevelop;
 using namespace KDevMI;
 using namespace KDevMI::MI;
@@ -74,25 +76,26 @@
 {
     const Value& threads = r["threads"];
 
-    // Traverse GDB threads in backward order -- since GDB
-    // reports them in backward order. We want UI to
-    // show thread IDs in the natural order.
-    // FIXME: at least GDB 7.11 is reporting in the right order,
-    // consider sort the list afterwards.
-
-    QList<KDevelop::FrameStackModel::ThreadItem> threadsList;
-    int gidx = threads.size()-1;
-    for (; gidx >= 0; --gidx) {
-        KDevelop::FrameStackModel::ThreadItem i;
-        const Value & threadMI = threads[gidx];
-        i.nr = threadMI["id"].toInt();
+    QList<FrameStackModel::ThreadItem> threadsList;
+    for (int i = 0; i!= threads.size(); ++i) {
+        const auto &threadMI = threads[i];
+        FrameStackModel::ThreadItem threadItem;
+        threadItem.nr = threadMI["id"].toInt();
         if (threadMI["state"].literal() == "stopped") {
-            i.name = getFunctionOrAddress(threads[gidx]["frame"]);
+            threadItem.name = getFunctionOrAddress(threadMI["frame"]);
         } else {
-            i.name = i18n("(running)");
+            i18n("(running)");
         }
-        threadsList << i;
+        threadsList << threadItem;
     }
+    // Sort the list by id, some old version of GDB
+    // reports them in backward order. We want UI to
+    // show thread IDs in the natural order.
+    std::sort(threadsList.begin(), threadsList.end(),
+              [](const FrameStackModel::ThreadItem &a, const FrameStackModel::ThreadItem &b){
+                  return a.nr < b.nr;
+              });
+
     setThreads(threadsList);
     if (r.hasField("current-thread-id")) {
         int currentThreadId = r["current-thread-id"].toInt();
diff --git a/debuggers/gdb/debugsession.h b/debuggers/gdb/debugsession.h
--- a/debuggers/gdb/debugsession.h
+++ b/debuggers/gdb/debugsession.h
@@ -72,6 +72,11 @@
     VariableController * variableController() const override;
     GdbFrameStackModel * frameStackModel() const override;
 
+    // FIXME: only used in unit test currently,
+    // potentially could be made a user configurable option
+    // Whether turn off auto-disable ASLR when starting inferiors
+    void setAutoDisableASLR(bool enable);
+
 protected:
     GdbDebugger *createDebugger() const override;
     void initializeDebugger() override;
@@ -89,6 +94,8 @@
     BreakpointController *m_breakpointController;
     VariableController *m_variableController;
     GdbFrameStackModel *m_frameStackModel;
+
+    bool m_autoDisableASLR;
 };
 
 } // end of namespace GDB
diff --git a/debuggers/gdb/debugsession.cpp b/debuggers/gdb/debugsession.cpp
--- a/debuggers/gdb/debugsession.cpp
+++ b/debuggers/gdb/debugsession.cpp
@@ -58,6 +58,7 @@
     , m_breakpointController(nullptr)
     , m_variableController(nullptr)
     , m_frameStackModel(nullptr)
+    , m_autoDisableASLR(false)
 {
     m_breakpointController = new BreakpointController(this);
     m_variableController = new VariableController(this);
@@ -68,6 +69,11 @@
 {
 }
 
+void DebugSession::setAutoDisableASLR(bool enable)
+{
+    m_autoDisableASLR = enable;
+}
+
 BreakpointController *DebugSession::breakpointController() const
 {
     return m_breakpointController;
@@ -120,6 +126,10 @@
         addCommand(MI::NonMI, "source " + fileName);
     }
 
+    // GDB can't disable ASLR on CI server.
+    addCommand(MI::GdbSet,
+               QStringLiteral("disable-randomization %1").arg(m_autoDisableASLR ? "on" : "off"));
+
     qCDebug(DEBUGGERGDB) << "Initialized GDB";
 }
 
diff --git a/debuggers/gdb/gdb.h b/debuggers/gdb/gdb.h
--- a/debuggers/gdb/gdb.h
+++ b/debuggers/gdb/gdb.h
@@ -35,11 +35,6 @@
     ~GdbDebugger() override;
 
     bool start(KConfigGroup& config, const QStringList& extraArguments = {}) override;
-
-    /** Reports debugger interal output, including stderr output from debugger
-        and the 'log' MI channel */
-    void debuggerInternalOutput(const QString& s);
-
 };
 
 } // end of namespace GDB
diff --git a/debuggers/gdb/gdbframestackmodel.cpp b/debuggers/gdb/gdbframestackmodel.cpp
--- a/debuggers/gdb/gdbframestackmodel.cpp
+++ b/debuggers/gdb/gdbframestackmodel.cpp
@@ -21,8 +21,6 @@
  */
 
 #include "gdbframestackmodel.h"
-#include <algorithm>
-
 
 #include "debugsession.h"
 
diff --git a/debuggers/gdb/unittests/test_gdb.cpp b/debuggers/gdb/unittests/test_gdb.cpp
--- a/debuggers/gdb/unittests/test_gdb.cpp
+++ b/debuggers/gdb/unittests/test_gdb.cpp
@@ -57,7 +57,6 @@
 namespace KDevMI { namespace GDB {
 
 QUrl findExecutable(const QString& name)
-
 {
     QFileInfo info(qApp->applicationDirPath()  + "/unittests/" + name);
     Q_ASSERT(info.exists());
@@ -182,6 +181,7 @@
     TestDebugSession() : DebugSession()
     {
         setSourceInitFile(false);
+        setAutoDisableASLR(false);
         m_frameStackModel = new TestFrameStackModel(this);
         KDevelop::ICore::self()->debugController()->addSession(this);
     }