Extend even further the logging designed to find problems in the pointer-map

structure. Call abort() to dump a core as soon as such a problem is seen.

FossilOrigin-Name: f131677dcb4937e0dd62626afa91756aa28079e92acd6e9e127f6f676aa334f9

manifest

@@ -1,5 +1,5 @@
-C Generate\sextra\slog\smessages\sin\sresponse\sto\sirregularites\sin\sthe\spointer-map\nused\sby\s"BEGIN\sCONCURRENT"\stransactions.
-D 2017-05-31T17:06:13.603
+C Extend\seven\sfurther\sthe\slogging\sdesigned\sto\sfind\sproblems\sin\sthe\spointer-map\nstructure.\sCall\sabort()\sto\sdump\sa\score\sas\ssoon\sas\ssuch\sa\sproblem\sis\sseen.
+D 2017-06-02T09:31:27.185
 F Makefile.in 1cc758ce3374a32425e4d130c2fe7b026b20de5b8843243de75f087c0a2661fb
 F Makefile.linux-gcc 7bc79876b875010e8c8f9502eb935ca92aa3c434
 F Makefile.msc 8eeb80162074004e906b53d7340a12a14c471a83743aab975947e95ce061efcc
@@ -350,7 +350,7 @@ F src/auth.c 79f96c6f33bf0e5da8d1c282cee5ebb1852bb8a6ccca3e485d7c459b035d9c3c
 F src/backup.c faf17e60b43233c214aae6a8179d24503a61e83b
 F src/bitvec.c c77b7f5759e413c1c8b53267d633c952e66db79c1171964c7e24c0f92f5019cf
 F src/btmutex.c 0e9ce2d56159b89b9bc8e197e023ee11e39ff8ca
-F src/btree.c 322cd2e8aa98c5e44fb9fc756e15fe86c093bdba2e8c4465541098a56b1dd0a7
+F src/btree.c 63ae7953340839b84a1462f01414debebf8a178867085189280698f0cf724219
 F src/btree.h 14e99cc2b666beb60322173c761d16b668ec2e07c18bbb74e8a49fe85946f8a0
 F src/btreeInt.h 7429915fc8f51bbd78b7ac023aa4afbe5b9660fc1e6970f144b07540a34a4623
 F src/build.c ba3f389668754c407805bbc5f8ab140f063ba6b04a6a86f63006b63b3c7319a8
@@ -1591,7 +1591,7 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
 F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
 F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
 F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
-P 9ad846e57bd427adc7c29768cabca18905f7f978168e0642a5917d894fda8bfd
-R 524ad4cfe044e13975f9c2307068a2ae
+P f7e3e2bc88f110d9282ce5d2fa58580c585faeb57cb707253f05001e5f4bd91b
+R 0cc4cace2096d9ccd320cd1d9a64685a
 U dan
-Z b8c7e688cb5faa52956d652176272c93
+Z 40b70ad4ffb9dd03aeca52705a79b953

manifest.uuid

@@ -1 +1 @@
-f7e3e2bc88f110d9282ce5d2fa58580c585faeb57cb707253f05001e5f4bd91b
+f131677dcb4937e0dd62626afa91756aa28079e92acd6e9e127f6f676aa334f9

src/btree.c

@@ -657,6 +657,7 @@ static void btreeCheckPtrmap(BtShared *p, int nPage, const char *zLog){
             (n>4 ? (int)pMap->aPtr[4].eType : -1),
             (n>4 ? (int)pMap->aPtr[4].parent : -1)
             );
+        abort();
         break;
       }
     }
@@ -8806,6 +8807,8 @@ int sqlite3BtreeDelete(BtCursor *pCur, u8 flags){
     invalidateIncrblobCursors(p, pCur->pgnoRoot, pCur->info.nKey, 0);
   }
 
+  btreeCheckPtrmap(pBt, pBt->nPage, "sqlite3BtreeDelete(0)");
+
   /* Make the page containing the entry to be deleted writable. Then free any
   ** overflow pages associated with the entry and finally remove the cell
   ** itself from within the page.  */
@@ -8815,6 +8818,8 @@ int sqlite3BtreeDelete(BtCursor *pCur, u8 flags){
   dropCell(pPage, iCellIdx, info.nSize, &rc);
   if( rc ) return rc;
 
+  btreeCheckPtrmap(pBt, pBt->nPage, "sqlite3BtreeDelete(1)");
+
   /* If the cell deleted was not located on a leaf page, then the cursor
   ** is currently pointing to the largest entry in the sub-tree headed
   ** by the child-page of the cell that was just deleted from an internal
@@ -8840,6 +8845,8 @@ int sqlite3BtreeDelete(BtCursor *pCur, u8 flags){
     if( rc ) return rc;
   }
 
+  btreeCheckPtrmap(pBt, pBt->nPage, "sqlite3BtreeDelete(2)");
+
   /* Balance the tree. If the entry deleted was located on a leaf page,
   ** then the cursor still points to that page. In this case the first
   ** call to balance() repairs the tree, and the if(...) condition is
@@ -8863,6 +8870,8 @@ int sqlite3BtreeDelete(BtCursor *pCur, u8 flags){
     rc = balance(pCur);
   }
 
+  btreeCheckPtrmap(pBt, pBt->nPage, "sqlite3BtreeDelete(3)");
+
   if( rc==SQLITE_OK ){
     if( bSkipnext ){
       assert( bPreserve && (pCur->iPage==iCellDepth || CORRUPT_DB) );
@@ -8882,7 +8891,6 @@ int sqlite3BtreeDelete(BtCursor *pCur, u8 flags){
       }
     }
   }
-  btreeCheckPtrmap(pBt, pBt->nPage, "sqlite3BtreeInsert()");
   return rc;
 }