diff --git a/manifest b/manifest
index 1b7bb9a180..296d435e22 100644
--- a/manifest
+++ b/manifest
@@ -1,5 +1,5 @@
-C Fix\sos_unix.c\sso\sthat,\sunless\s8.3\sfilenames\sare\sactually\sin\suse,\sjournal\sand\swal\sfile\spermissions\sare\sassigned\scorrectly\seven\sif\sSQLITE_ENABLE_8_3_NAMES\sis\sdefined.
-D 2011-12-12T19:48:43.750
+C Merge\sthe\snx-devkit\schanges\sinto\strunk.
+D 2011-12-13T15:37:12.235
 F Makefile.arm-wince-mingw32ce-gcc d6df77f1f48d690bd73162294bbba7f59507c72f
 F Makefile.in 5b4a3e12a850b021547e43daf886b25133b44c07
 F Makefile.linux-gcc 91d710bdc4998cb015f39edf3cb314ec4f4d7e23
@@ -146,8 +146,8 @@ F src/insert.c ea820fe9af748075b3b6827fb6f23f25079bf1f7
 F src/journal.c 552839e54d1bf76fb8f7abe51868b66acacf6a0e
 F src/legacy.c a199d7683d60cef73089e892409113e69c23a99f
 F src/lempar.c 0ee69fca0be54cd93939df98d2aca4ca46f44416
-F src/loadext.c d0d2022a5a07274d408820b978b9e549189d314f
-F src/main.c e10d5ad24ae1964d1dc53fbc283557c1c5cd29f3
+F src/loadext.c f20382fbaeec832438a1ba7797bee3d3c8a6d51d
+F src/main.c b4c74ff20abd393b14b3cf7b2130758e2187a5b2
 F src/malloc.c 591aedb20ae40813f1045f2ef253438a334775d9
 F src/mem0.c 6a55ebe57c46ca1a7d98da93aaa07f99f1059645
 F src/mem1.c 7998e7003a3047e323c849a26dda004debc04d03
@@ -214,7 +214,7 @@ F src/test_intarray.h 489edb9068bb926583445cb02589344961054207
 F src/test_journal.c 03313c693cca72959dcaaf79f8d76f21c01e19ff
 F src/test_loadext.c df586c27176e3c2cb2e099c78da67bf14379a56e
 F src/test_malloc.c 8d416f29ad8573f32601f6056c9d2b17472e9ad5
-F src/test_multiplex.c 7dcf429b53f5f5ef22bba7987bea61234a0c7418
+F src/test_multiplex.c 10aaf8b7ebeb74f82d5c96e06c398b776917e457
 F src/test_multiplex.h e99c571bc4968b7a9363b661481f3934bfead61d
 F src/test_mutex.c a6bd7b9cf6e19d989e31392b06ac8d189f0d573e
 F src/test_onefile.c 40cf9e212a377a6511469384a64b01e6e34b2eec
@@ -605,8 +605,9 @@ F test/misc5.test 528468b26d03303b1f047146e5eefc941b9069f5
 F test/misc6.test 953cc693924d88e6117aeba16f46f0bf5abede91
 F test/misc7.test eafaa41b9133d7a2ded4641bbe5f340731d35a52
 F test/misuse.test ba4fb5d1a6101d1c171ea38b3c613d0661c83054
-F test/multiplex.test 770f0295dd6673e60458cb93abd033ed2f253291
+F test/multiplex.test 8bc3c71f73fe833bc8a659d454d320044a33b5da
 F test/multiplex2.test 580ca5817c7edbe4cc68fa150609c9473393003a
+F test/multiplex3.test cbc0d03da5fcd0c18a33a8973ef1df1b4bc2100a
 F test/mutex1.test 78b2b9bb320e51d156c4efdb71b99b051e7a4b41
 F test/mutex2.test bfeaeac2e73095b2ac32285d2756e3a65e681660
 F test/nan.test e9648b9d007c7045242af35e11a984d4b169443a
@@ -979,7 +980,7 @@ F tool/tostr.awk e75472c2f98dd76e06b8c9c1367f4ab07e122d06
 F tool/vdbe-compress.tcl d70ea6d8a19e3571d7ab8c9b75cba86d1173ff0f
 F tool/warnings-clang.sh 9f406d66e750e8ac031c63a9ef3248aaa347ef2a
 F tool/warnings.sh fbc018d67fd7395f440c28f33ef0f94420226381
-P ee1e012256ae8010b6b6c4895a74b6883f20e73c
-R 6f54deb234c6e01cb7083112d4738ce0
-U dan
-Z 1fe68808d0e2249c5544c1978ff3d49d
+P 169e12295cca701443746b1209bd6a7714fd8988 2eb79efbff9cdab843b172e9fa9fb400c542fab1
+R e5aa0bc552fbb5033b8311d030f5558d
+U drh
+Z afe5f3537b446035b4ee9315704cbe8b
diff --git a/manifest.uuid b/manifest.uuid
index a794f24ca6..2ba39b2ac4 100644
--- a/manifest.uuid
+++ b/manifest.uuid
@@ -1 +1 @@
-169e12295cca701443746b1209bd6a7714fd8988
\ No newline at end of file
+03a70c3dae8d912fccd9d72c575dc372b198d238
\ No newline at end of file
diff --git a/src/loadext.c b/src/loadext.c
index e9c97adff3..3fcf5008cf 100644
--- a/src/loadext.c
+++ b/src/loadext.c
@@ -625,6 +625,7 @@ void sqlite3_reset_auto_extension(void){
 void sqlite3AutoLoadExtensions(sqlite3 *db){
   int i;
   int go = 1;
+  int rc;
   int (*xInit)(sqlite3*,char**,const sqlite3_api_routines*);
 
   wsdAutoextInit;
@@ -647,8 +648,8 @@ void sqlite3AutoLoadExtensions(sqlite3 *db){
     }
     sqlite3_mutex_leave(mutex);
     zErrmsg = 0;
-    if( xInit && xInit(db, &zErrmsg, &sqlite3Apis) ){
-      sqlite3Error(db, SQLITE_ERROR,
+    if( xInit && (rc = xInit(db, &zErrmsg, &sqlite3Apis))!=0 ){
+      sqlite3Error(db, rc,
             "automatic extension loading failed: %s", zErrmsg);
       go = 0;
     }
diff --git a/src/main.c b/src/main.c
index d6dc0c79ed..f4519c5b36 100644
--- a/src/main.c
+++ b/src/main.c
@@ -257,6 +257,10 @@ int sqlite3_initialize(void){
 */
 int sqlite3_shutdown(void){
   if( sqlite3GlobalConfig.isInit ){
+#ifdef SQLITE_EXTRA_SHUTDOWN
+    void SQLITE_EXTRA_SHUTDOWN(void);
+    SQLITE_EXTRA_SHUTDOWN();
+#endif
     sqlite3_os_end();
     sqlite3_reset_auto_extension();
     sqlite3GlobalConfig.isInit = 0;
@@ -2239,10 +2243,13 @@ static int openDatabase(
   /* Load automatic extensions - extensions that have been registered
   ** using the sqlite3_automatic_extension() API.
   */
-  sqlite3AutoLoadExtensions(db);
   rc = sqlite3_errcode(db);
-  if( rc!=SQLITE_OK ){
-    goto opendb_out;
+  if( rc==SQLITE_OK ){
+    sqlite3AutoLoadExtensions(db);
+    rc = sqlite3_errcode(db);
+    if( rc!=SQLITE_OK ){
+      goto opendb_out;
+    }
   }
 
 #ifdef SQLITE_ENABLE_FTS1
diff --git a/src/test_multiplex.c b/src/test_multiplex.c
index 091f2395fd..ce55bad083 100644
--- a/src/test_multiplex.c
+++ b/src/test_multiplex.c
@@ -213,71 +213,6 @@ static int multiplexStrlen30(const char *z){
   return 0x3fffffff & (int)(z2 - z);
 }
 
-/*
-** Create a temporary file name in zBuf.  zBuf must be big enough to
-** hold at pOrigVfs->mxPathname characters.  This function departs
-** from the traditional temporary name generation in the os_win
-** and os_unix VFS in several ways, but is necessary so that 
-** the file name is known for temporary files (like those used 
-** during vacuum.)
-**
-** N.B. This routine assumes your underlying VFS is ok with using
-** "/" as a directory seperator.  This is the default for UNIXs
-** and is allowed (even mixed) for most versions of Windows.
-*/
-static int multiplexGetTempname(sqlite3_vfs *pOrigVfs, int nBuf, char *zBuf){
-  static char zChars[] =
-    "abcdefghijklmnopqrstuvwxyz"
-    "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
-    "0123456789";
-  int i,j;
-  int attempts = 0;
-  int exists = 0;
-  int rc = SQLITE_ERROR;
-
-  /* Check that the output buffer is large enough for 
-  ** pVfs->mxPathname characters.
-  */
-  if( pOrigVfs->mxPathname <= nBuf ){
-    char *zTmp = sqlite3_malloc(pOrigVfs->mxPathname);
-    if( zTmp==0 ) return SQLITE_NOMEM;
-
-    /* sqlite3_temp_directory should always be less than
-    ** pVfs->mxPathname characters.
-    */
-    sqlite3_snprintf(pOrigVfs->mxPathname,
-                     zTmp,
-                     "%s/",
-                     sqlite3_temp_directory ? sqlite3_temp_directory : ".");
-    rc = pOrigVfs->xFullPathname(pOrigVfs, zTmp, nBuf, zBuf);
-    sqlite3_free(zTmp);
-    if( rc ) return rc;
-
-    /* Check that the output buffer is large enough for the temporary file 
-    ** name.
-    */
-    j = multiplexStrlen30(zBuf);
-    if( (j + 8 + 1 + 3 + 1) <= nBuf ){
-      /* Make 3 attempts to generate a unique name. */
-      do {
-        attempts++;
-        sqlite3_randomness(8, &zBuf[j]);
-        for(i=0; i<8; i++){
-          unsigned char uc = (unsigned char)zBuf[j+i];
-          zBuf[j+i] = (char)zChars[uc%(sizeof(zChars)-1)];
-        }
-        memcpy(&zBuf[j+i], ".tmp", 5);
-        rc = pOrigVfs->xAccess(pOrigVfs, zBuf, SQLITE_ACCESS_EXISTS, &exists);
-      } while ( (rc==SQLITE_OK) && exists && (attempts<3) );
-      if( rc==SQLITE_OK && exists ){
-        rc = SQLITE_ERROR;
-      }
-    }
-  }
-
-  return rc;
-}
-
 /* Compute the filename for the iChunk-th chunk
 */
 static int multiplexSubFilename(multiplexGroup *pGroup, int iChunk){
@@ -291,7 +226,7 @@ static int multiplexSubFilename(multiplexGroup *pGroup, int iChunk){
     pGroup->aReal = p;
     pGroup->nReal = iChunk+1;
   }
-  if( pGroup->aReal[iChunk].z==0 ){
+  if( pGroup->zName && pGroup->aReal[iChunk].z==0 ){
     char *z;
     int n = pGroup->nName;
     pGroup->aReal[iChunk].z = z = sqlite3_malloc( n+4 );
@@ -461,6 +396,7 @@ static int multiplexOpen(
 
   UNUSED_PARAMETER(pVfs);
   memset(pConn, 0, pVfs->szOsFile);
+  assert( zName || (flags & SQLITE_OPEN_DELETEONCLOSE) );
 
   /* We need to create a group structure and manage
   ** access to this group of files.
@@ -468,23 +404,9 @@ static int multiplexOpen(
   multiplexEnter();
   pMultiplexOpen = (multiplexConn*)pConn;
 
-  /* If the second argument to this function is NULL, generate a 
-  ** temporary file name to use.  This will be handled by the
-  ** original xOpen method.  We just need to allocate space for
-  ** it.
-  */
-  if( !zName ){
-    zName = zToFree = sqlite3_malloc( pOrigVfs->mxPathname + 10 );
-    if( zName==0 ){
-      rc = SQLITE_NOMEM;
-    }else{
-      rc = multiplexGetTempname(pOrigVfs, pOrigVfs->mxPathname, zToFree);
-    }
-  }
-
   if( rc==SQLITE_OK ){
     /* allocate space for group */
-    nName = multiplexStrlen30(zName);
+    nName = zName ? multiplexStrlen30(zName) : 0;
     sz = sizeof(multiplexGroup)                             /* multiplexGroup */
        + nName + 1;                                         /* zName */
     pGroup = sqlite3_malloc( sz );
@@ -495,32 +417,34 @@ static int multiplexOpen(
 
   if( rc==SQLITE_OK ){
     /* assign pointers to extra space allocated */
-    char *p = (char *)&pGroup[1];
-    pMultiplexOpen->pGroup = pGroup;
     memset(pGroup, 0, sz);
+    pMultiplexOpen->pGroup = pGroup;
     pGroup->bEnabled = -1;
     pGroup->szChunk = SQLITE_MULTIPLEX_CHUNK_SIZE;
-    if( flags & SQLITE_OPEN_URI ){
-      const char *zChunkSize;
-      zChunkSize = sqlite3_uri_parameter(zName, "chunksize");
-      if( zChunkSize ){
-        unsigned int n = 0;
-        int i;
-        for(i=0; zChunkSize[i]>='0' && zChunkSize[i]<='9'; i++){
-          n = n*10 + zChunkSize[i] - '0';
-        }
-        if( n>0 ){
-          pGroup->szChunk = (n+0xffff)&~0xffff;
-        }else{
-          /* A zero or negative chunksize disabled the multiplexor */
-          pGroup->bEnabled = 0;
+
+    if( zName ){
+      char *p = (char *)&pGroup[1];
+      if( flags & SQLITE_OPEN_URI ){
+        const char *zChunkSize;
+        zChunkSize = sqlite3_uri_parameter(zName, "chunksize");
+        if( zChunkSize ){
+          unsigned int n = 0;
+          int i;
+          for(i=0; zChunkSize[i]>='0' && zChunkSize[i]<='9'; i++){
+            n = n*10 + zChunkSize[i] - '0';
+          }
+          if( n>0 ){
+            pGroup->szChunk = (n+0xffff)&~0xffff;
+          }else{
+            /* A zero or negative chunksize disabled the multiplexor */
+            pGroup->bEnabled = 0;
+          }
         }
       }
+      pGroup->zName = p;
+      memcpy(pGroup->zName, zName, nName+1);
+      pGroup->nName = nName;
     }
-    pGroup->zName = p;
-    /* save off base filename, name length, and original open flags  */
-    memcpy(pGroup->zName, zName, nName+1);
-    pGroup->nName = nName;
     pGroup->flags = flags;
     rc = multiplexSubFilename(pGroup, 1);
     if( rc==SQLITE_OK ){
@@ -796,7 +720,6 @@ static int multiplexFileSize(sqlite3_file *pConn, sqlite3_int64 *pSize){
   multiplexConn *p = (multiplexConn*)pConn;
   multiplexGroup *pGroup = p->pGroup;
   int rc = SQLITE_OK;
-  int rc2;
   int i;
   multiplexEnter();
   if( !pGroup->bEnabled ){
@@ -809,38 +732,32 @@ static int multiplexFileSize(sqlite3_file *pConn, sqlite3_int64 *pSize){
   }else{
     sqlite3_vfs *pOrigVfs = gMultiplex.pOrigVfs;
     *pSize = 0;
-    for(i=0; 1; i++){
+    for(i=0; rc==SQLITE_OK; i++){
       sqlite3_file *pSubOpen = 0;
       int exists = 0;
       rc = multiplexSubFilename(pGroup, i);
-      if( rc ) break;
-      if( pGroup->flags & SQLITE_OPEN_DELETEONCLOSE ){
-        exists = pGroup->nReal>=i && pGroup->aReal[i].p!=0;
-        rc2 = SQLITE_OK;
-      }else{
-        rc2 = pOrigVfs->xAccess(pOrigVfs, pGroup->aReal[i].z,
-            SQLITE_ACCESS_EXISTS, &exists);
+      if( rc!=SQLITE_OK ) break;
+      if( pGroup->nReal>i && pGroup->aReal[i].p!=0 ){
+        exists = 1;
+      }else if( (pGroup->flags & SQLITE_OPEN_DELETEONCLOSE)==0 ){
+        const char *zReal = pGroup->aReal[i].z;
+        rc = pOrigVfs->xAccess(pOrigVfs, zReal, SQLITE_ACCESS_EXISTS, &exists);
       }
-      if( rc2==SQLITE_OK && exists){
-        /* if it exists, open it */
+      if( exists==0 ){
+        /* stop at first "gap" or IO error. */
+        break;
+      }
+      if( rc==SQLITE_OK ){
         pSubOpen = multiplexSubOpen(pGroup, i, &rc, NULL);
-      }else{
-        /* stop at first "gap" */
-        break;
       }
-      if( pSubOpen ){
-        sqlite3_int64 sz;
-        rc2 = pSubOpen->pMethods->xFileSize(pSubOpen, &sz);
-        if( rc2!=SQLITE_OK ){
-          rc = rc2;
-        }else{
-          if( sz>pGroup->szChunk ){
-            rc = SQLITE_IOERR_FSTAT;
-          }
-          *pSize += sz;
+      assert( pSubOpen || rc!=SQLITE_OK );
+      if( rc==SQLITE_OK ){
+        sqlite3_int64 sz = 0;
+        rc = pSubOpen->pMethods->xFileSize(pSubOpen, &sz);
+        if( rc==SQLITE_OK && sz>pGroup->szChunk ){
+          rc = SQLITE_IOERR_FSTAT;
         }
-      }else{
-        break;
+        *pSize += sz;
       }
     }
   }
@@ -1191,9 +1108,13 @@ static int test_multiplex_dump(
   for(pGroup=gMultiplex.pGroups; pGroup; pGroup=pGroup->pNext){
     pGroupTerm = Tcl_NewObj();
 
-    pGroup->zName[pGroup->nName] = '\0';
-    Tcl_ListObjAppendElement(interp, pGroupTerm,
+    if( pGroup->zName ){
+      pGroup->zName[pGroup->nName] = '\0';
+      Tcl_ListObjAppendElement(interp, pGroupTerm,
           Tcl_NewStringObj(pGroup->zName, -1));
+    }else{
+      Tcl_ListObjAppendElement(interp, pGroupTerm, Tcl_NewObj());
+    }
     Tcl_ListObjAppendElement(interp, pGroupTerm,
           Tcl_NewIntObj(pGroup->nName));
     Tcl_ListObjAppendElement(interp, pGroupTerm,
diff --git a/test/multiplex.test b/test/multiplex.test
index cb6c8a0b63..7168e753ab 100644
--- a/test/multiplex.test
+++ b/test/multiplex.test
@@ -14,6 +14,16 @@ set testdir [file dirname $argv0]
 source $testdir/tester.tcl
 source $testdir/malloc_common.tcl
 
+# The tests in this file assume that SQLite is compiled without
+# ENABLE_8_3_NAMES.
+#
+ifcapable 8_3_names {
+  puts -nonewline "SQLite compiled with SQLITE_ENABLE_8_3_NAMES. "
+  puts            "Skipping tests multiplex-*."
+  finish_test
+  return
+}
+
 set g_chunk_size [ expr ($::SQLITE_MAX_PAGE_SIZE*16384) ]
 set g_max_chunks 32
 
diff --git a/test/multiplex3.test b/test/multiplex3.test
new file mode 100644
index 0000000000..b5a2f1de73
--- /dev/null
+++ b/test/multiplex3.test
@@ -0,0 +1,98 @@
+
+# 2011 December 13
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file contains tests for error (IO, OOM etc.) handling when using
+# the multiplexor extension with 8.3 filenames.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/malloc_common.tcl
+set ::testprefix multiplex3
+
+ifcapable !8_3_names {
+  puts -nonewline "SQLite compiled without SQLITE_ENABLE_8_3_NAMES. "
+  puts            "Skipping tests multiplex3-*."
+  finish_test
+  return
+}
+
+db close
+sqlite3_shutdown
+sqlite3_config_uri 1
+autoinstall_test_functions
+
+sqlite3_multiplex_initialize "" 1
+
+proc destroy_vfs_stack {} {
+  generic_unregister stack
+  sqlite3_multiplex_shutdown
+}
+
+proc multiplex_delete_db {} {
+  forcedelete test.db
+  for {set i 1} {$i <= 1000} {incr i} {
+    forcedelete test.[format %03d $i]
+  }
+}
+
+# Procs to save and restore the current muliplexed database.
+#
+proc multiplex_save_db {} {
+  foreach f [glob -nocomplain sv_test.*] { forcedelete $f }
+  foreach f [glob -nocomplain test.*]    { forcecopy $f "sv_$f" }
+}
+proc multiplex_restore_db {} {
+  foreach f [glob -nocomplain test.*]    {forcedelete $f}
+  foreach f [glob -nocomplain sv_test.*] {forcecopy $f [string range $f 3 end]} }
+
+
+do_test 1.0 {
+  multiplex_delete_db
+  sqlite3 db file:test.db?8_3_names=1
+  sqlite3_multiplex_control db main chunk_size [expr 256*1024]
+  execsql {
+    CREATE TABLE t1(a PRIMARY KEY, b);
+    INSERT INTO t1 VALUES(randomblob(15), randomblob(2000));
+    INSERT INTO t1 SELECT randomblob(15), randomblob(2000) FROM t1;    --   2
+    INSERT INTO t1 SELECT randomblob(15), randomblob(2000) FROM t1;    --   4
+    INSERT INTO t1 SELECT randomblob(15), randomblob(2000) FROM t1;    --   8
+    INSERT INTO t1 SELECT randomblob(15), randomblob(2000) FROM t1;    --  16
+    INSERT INTO t1 SELECT randomblob(15), randomblob(2000) FROM t1;    --  32
+    INSERT INTO t1 SELECT randomblob(15), randomblob(2000) FROM t1;    --  64
+    INSERT INTO t1 SELECT randomblob(15), randomblob(2000) FROM t1;    -- 128
+    INSERT INTO t1 SELECT randomblob(15), randomblob(2000) FROM t1;    -- 256
+    INSERT INTO t1 SELECT randomblob(15), randomblob(2000) FROM t1;    -- 512
+  }
+  set ::cksum1 [execsql {SELECT md5sum(a, b) FROM t1 ORDER BY a}]
+  db close
+  multiplex_save_db
+} {}
+
+do_faultsim_test 1 -prep {
+  multiplex_restore_db
+  sqlite3 db file:test.db?8_3_names=1
+  sqlite3_multiplex_control db main chunk_size [expr 256*1024]
+} -body {
+  execsql "UPDATE t1 SET a=randomblob(12), b=randomblob(1500) WHERE (rowid%32)=0"
+} -test {
+  faultsim_test_result {0 {}}
+  if {$testrc!=0} {
+    set cksum2 [execsql {SELECT md5sum(a, b) FROM t1 ORDER BY a}]
+    if {$cksum2 != $::cksum1} { error "data mismatch" }
+  }
+}
+
+catch { db close }
+
+sqlite3_multiplex_shutdown
+finish_test