1 files changed, 13 insertions, 12 deletions

diff --git a/src/test6.c b/src/test6.c
index bae6b65..c151ea4 100644
--- a/src/test6.c
+++ b/src/test6.c
@@ -87,7 +87,7 @@ typedef struct WriteBuffer WriteBuffer;
 **   an aligned write() of an integer number of 512 byte regions, then
 **   option (3) above is never selected. Instead, each 512 byte region
 **   is either correctly written or left completely untouched. Similar
-**   logic governs the behaviour if any of the other ATOMICXXX flags
+**   logic governs the behavior if any of the other ATOMICXXX flags
 **   is set.
 **
 **   If either the IOCAP_SAFEAPPEND or IOCAP_SEQUENTIAL flags are set
@@ -312,8 +312,8 @@ static int writeListSync(CrashFile *pFile, int isCrash){
         assert(pWrite->zBuf);
 
 #ifdef TRACE_CRASHTEST
-        printf("Trashing %d sectors @ sector %d (%s)\n", 
-            1+iLast-iFirst, iFirst, pWrite->pFile->zName
+        printf("Trashing %d sectors @ %lld (sector %d) (%s)\n", 
+            1+iLast-iFirst, pWrite->iOffset, iFirst, pWrite->pFile->zName
         );
 #endif
 
@@ -628,18 +628,19 @@ static int cfOpen(
       ** to read data from the 512-byte locking region of a file opened
       ** with the SQLITE_OPEN_MAIN_DB flag. This region of a database file
       ** never contains valid data anyhow. So avoid doing such a read here.
+      **
+      ** UPDATE: It also contains an assert() verifying that each call
+      ** to the xRead() method reads less than 128KB of data.
       */
       const int isDb = (flags&SQLITE_OPEN_MAIN_DB);
-      i64 iChunk = pWrapper->iSize;
-      if( iChunk>PENDING_BYTE && isDb ){
-        iChunk = PENDING_BYTE;
-      }
+      i64 iOff;
+
       memset(pWrapper->zData, 0, pWrapper->nData);
-      rc = sqlite3OsRead(pReal, pWrapper->zData, (int)iChunk, 0); 
-      if( SQLITE_OK==rc && pWrapper->iSize>(PENDING_BYTE+512) && isDb ){
-        i64 iOff = PENDING_BYTE+512;
-        iChunk = pWrapper->iSize - iOff;
-        rc = sqlite3OsRead(pReal, &pWrapper->zData[iOff], (int)iChunk, iOff);
+      for(iOff=0; iOff<pWrapper->iSize; iOff += 512){
+        int nRead = pWrapper->iSize - (int)iOff;
+        if( nRead>512 ) nRead = 512;
+        if( isDb && iOff==PENDING_BYTE ) continue;
+        rc = sqlite3OsRead(pReal, &pWrapper->zData[iOff], nRead, iOff);
       }
     }else{
       rc = SQLITE_NOMEM;