bk commit into 4.1 tree (jonas:1.2462) BUG#17295

[jonas]

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ChangeSet
  1.2462 06/02/10 09:17:53 jonas@stripped +1 -0
  bug#17295 - ndb - error while reading REDO log
    fix corruption due to page 0, file 0 gets released

  ndb/src/kernel/blocks/dblqh/DblqhMain.cpp
    1.61 06/02/10 09:17:51 jonas@stripped +11 -3
    Make sure that page 0, file 0 isnt released

# This is a BitKeeper patch.  What follows are the unified diffs for the
# set of deltas contained in the patch.  The rest of the patch, the part
# that BitKeeper cares about, is below these diffs.
# User:	jonas
# Host:	perch.ndb.mysql.com
# Root:	/home/jonas/src/41-work

--- 1.60/ndb/src/kernel/blocks/dblqh/DblqhMain.cpp	2006-02-06 11:42:43 +01:00
+++ 1.61/ndb/src/kernel/blocks/dblqh/DblqhMain.cpp	2006-02-10 09:17:51 +01:00
@@ -14767,7 +14767,9 @@
           signal->theData[4] = logFilePtr.p->currentFilepage;
           signal->theData[5] = logFilePtr.p->currentMbyte;
           signal->theData[6] = logPagePtr.p->logPageWord[ZCURR_PAGE_INDEX];
-          sendSignal(cownref, GSN_DEBUG_SIG, signal, 7, JBA);
+	  signal->theData[7] = ~0;
+	  signal->theData[8] = __LINE__;
+          sendSignal(cownref, GSN_DEBUG_SIG, signal, 9, JBA);
           return;
         }//if
       }//if
@@ -14833,7 +14835,8 @@
       signal->theData[5] = logFilePtr.p->currentFilepage;
       signal->theData[6] = logPagePtr.p->logPageWord[ZCURR_PAGE_INDEX];
       signal->theData[7] = logWord;
-      sendSignal(cownref, GSN_DEBUG_SIG, signal, 8, JBA);
+      signal->theData[8] = __LINE__;
+      sendSignal(cownref, GSN_DEBUG_SIG, signal, 9, JBA);
       return;
       break;
     }//switch
@@ -14862,8 +14865,9 @@
 
   char buf[100];
   BaseString::snprintf(buf, 100, 
-	   "Error while reading REDO log.\n"
+	   "Error while reading REDO log. from %d\n"
 	   "D=%d, F=%d Mb=%d FP=%d W1=%d W2=%d",
+	   signal->theData[8],
 	   signal->theData[2], signal->theData[3], signal->theData[4],
 	   signal->theData[5], signal->theData[6], signal->theData[7]);
 
@@ -15439,6 +15443,10 @@
   // to read a page from file. 
   lfoPtr.p->lfoState = LogFileOperationRecord::WRITE_SR_INVALIDATE_PAGES;
 
+  /**
+   * Make sure we dont release zero page
+   */
+  seizeLogpage(signal);
   invalidateLogAfterLastGCI(signal);
   return;
 }//Dblqh::readSrFourthZeroLab()