diff --git a/manifest b/manifest
index b1b9ea84ff..53293465dd 100644
--- a/manifest
+++ b/manifest
@@ -1,5 +1,5 @@
-C Move\sthe\smultiplexor\schanges\sin\sthe\sexperimental\sbranch\n(check-ins\s[255d21499b]\sand\s[199f52bced])\sinto\sthe\snx-devkit\sbranch.
-D 2011-12-13T15:02:54.819
+C Update\sthe\smultiplex.test\sscript\sto\sconform\sto\sthat\sfound\sin\sthe\s"experimental"\nbranch\soff\sof\strunk.
+D 2011-12-13T15:25:06.872
 F Makefile.arm-wince-mingw32ce-gcc d6df77f1f48d690bd73162294bbba7f59507c72f
 F Makefile.in 5b4a3e12a850b021547e43daf886b25133b44c07
 F Makefile.linux-gcc 91d710bdc4998cb015f39edf3cb314ec4f4d7e23
@@ -605,7 +605,8 @@ F test/misc5.test 528468b26d03303b1f047146e5eefc941b9069f5
 F test/misc6.test 953cc693924d88e6117aeba16f46f0bf5abede91
 F test/misc7.test eafaa41b9133d7a2ded4641bbe5f340731d35a52
 F test/misuse.test ba4fb5d1a6101d1c171ea38b3c613d0661c83054
-F test/multiplex.test 9df8bf738b3b97c718fceb3fadb30900ba494418
+F test/multiplex.test 8bc3c71f73fe833bc8a659d454d320044a33b5da
+F test/multiplex3.test 2860177d0ec8d494c538f2199b8812df1c09c7c5
 F test/mutex1.test 78b2b9bb320e51d156c4efdb71b99b051e7a4b41
 F test/mutex2.test bfeaeac2e73095b2ac32285d2756e3a65e681660
 F test/nan.test e9648b9d007c7045242af35e11a984d4b169443a
@@ -976,7 +977,7 @@ F tool/tostr.awk e75472c2f98dd76e06b8c9c1367f4ab07e122d06
 F tool/vdbe-compress.tcl d70ea6d8a19e3571d7ab8c9b75cba86d1173ff0f
 F tool/warnings-clang.sh 9f406d66e750e8ac031c63a9ef3248aaa347ef2a
 F tool/warnings.sh fbc018d67fd7395f440c28f33ef0f94420226381
-P ce55f250f56fa3a1ca864f81e9e86f911b981490
-R cc774ebd7c088b6b617c7f855781c545
+P eb95d2f72c625bcfd0f8e9db1db2cb8799854b57
+R f11319d97c8d3b9123b61c079ca9c86c
 U drh
-Z 1b3d8d40cb48e276ed9ae7077034a64e
+Z b47be607cba7caec297cb5893d5ae313
diff --git a/manifest.uuid b/manifest.uuid
index a4233b55c6..a66362662f 100644
--- a/manifest.uuid
+++ b/manifest.uuid
@@ -1 +1 @@
-eb95d2f72c625bcfd0f8e9db1db2cb8799854b57
\ No newline at end of file
+2eb79efbff9cdab843b172e9fa9fb400c542fab1
\ No newline at end of file
diff --git a/test/multiplex.test b/test/multiplex.test
index 3abdcf4507..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
 
@@ -24,7 +34,7 @@ set g_max_chunks 32
 # file name with the chunk number.
 proc multiplex_name {name chunk} {
   if {$chunk==0} { return $name }
-  set num [format "%02d" $chunk]
+  set num [format "%03d" $chunk]
   ifcapable {multiplex_ext_overwrite} {
     set name [string range $name 0 [expr [string length $name]-2-1]]
   }
diff --git a/test/multiplex3.test b/test/multiplex3.test
new file mode 100644
index 0000000000..b1fd4d1f84
--- /dev/null
+++ b/test/multiplex3.test
@@ -0,0 +1,99 @@
+
+# 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 $env(SQLITE_TEST_DIR)
+source $testdir/tester.tcl
+source $testdir/malloc_common.tcl
+set ::testprefix multiplex3
+
+ifcapable !8_3_names {
+  puts -nonewline "SQLite compiled without SQLITE_ENABLE_8_3_NAMES. "
+  puts            "Skipping tests zipvfsD-*."
+  finish_test
+  return
+}
+
+db close
+sqlite3_shutdown
+sqlite3_config_uri 1
+autoinstall_test_functions
+
+sqlite3_multiplex_initialize "" 1
+
+proc destroy_vfs_stack {} {
+  generic_unregister stack
+  sqlite3_multiplex_shutdown
+}
+
+proc multiplex_delete_db {} {
+  forcedelete test.db
+  for {set i 1} {$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
+