Bug #12594: A few fixes

ndb/src/kernel/blocks/dblqh/Dblqh.hpp:
  Fixed a bug and an issue with the added debug code for finding
  redo log write mistakes
ndb/src/kernel/blocks/dblqh/DblqhMain.cpp:
  Fixed a bug and an issue with the added debug code for finding
  redo log write mistakes
  Removed a number of unnecessary break's
ndb/src/kernel/blocks/dblqh/redoLogReader/records.cpp:
  Added printouts of new debug info in log page header

ndb/src/kernel/blocks/dblqh/Dblqh.hpp

@@ -91,7 +91,7 @@
 #define ZPOS_PAGE_I 13
 #define ZPOS_PLACE_WRITTEN_FROM 14
 #define ZPOS_PAGE_NO 15
-#define ZPOS_FILE_NO 16
+#define ZPOS_PAGE_FILE_NO 16
 #define ZPOS_WORD_WRITTEN 17
 #define ZPOS_IN_WRITING 18
 #define ZPOS_PREV_PAGE_NO 19
@@ -2289,7 +2289,7 @@ private:
 			  const LogPartRecordPtr &sltLogPartPtr);
   void checkGcpCompleted(Signal* signal, Uint32 pageWritten, Uint32 wordWritten);
   void initFsopenconf(Signal* signal);
-  void initFsrwconf(Signal* signal);
+  void initFsrwconf(Signal* signal, bool write);
   void initLfo(Signal* signal);
   void initLogfile(Signal* signal, Uint32 fileNo);
   void initLogpage(Signal* signal);

ndb/src/kernel/blocks/dblqh/redoLogReader/records.cpp

@@ -267,6 +267,15 @@ NdbOut& operator<<(NdbOut& no, const PageHeader& ph) {
   printOut("Oldest prepare op. file No.:", ph.m_old_prepare_file_number);	 
   printOut("Oldest prepare op. page ref.:",  ph.m_old_prepare_page_reference);	 
   printOut("Dirty flag:", ph.m_dirty_flag);
+  printOut("Write Timer:", ph.m_log_timer);
+  printOut("Page i-val:", ph.m_page_i_value);
+  printOut("Place written:", ph.m_place_written_from);
+  printOut("Page No in File:", ph.m_page_no);
+  printOut("File No:", ph.m_file_no);
+  printOut("Word Written:", ph.m_word_written);
+  printOut("In Writing (should be 1)", ph.m_in_writing_flag);
+  printOut("Prev Page No (can be garbage)", ph.m_prev_page_no);
+  printOut("In Free List (should be 0):", ph.m_in_free_list);
   no << endl;
   return no;
 }