diff --git a/manifest b/manifest
index 761dc881e1..8fd3ad6738 100644
--- a/manifest
+++ b/manifest
@@ -1,5 +1,5 @@
-C Fix\stypos\sin\scommands.\s\sCombine\sthe\sExpandBlob\sand\sexpandBlob\smacros\sinto\sone.
-D 2012-01-08T22:18:33.638
+C Have\stest_multiplex.c\sadd\sa\ssecond\snul-terminator\sbyte\sto\sthe\sstrings\sthat\sit\spasses\sto\sthe\sxOpen\smethod\sof\sthe\sunderlying\sVFS,\sin\scase\sthat\sVFS\spasses\sthe\sstring\sto\ssqlite3_uri_parameter()\sor\ssimilar.
+D 2012-01-09T11:37:34.923
 F Makefile.arm-wince-mingw32ce-gcc d6df77f1f48d690bd73162294bbba7f59507c72f
 F Makefile.in 5b4a3e12a850b021547e43daf886b25133b44c07
 F Makefile.linux-gcc 91d710bdc4998cb015f39edf3cb314ec4f4d7e23
@@ -214,7 +214,7 @@ F src/test_intarray.h 489edb9068bb926583445cb02589344961054207
 F src/test_journal.c 2c06e4be6584d51b935dc8b353980a9388de62ef
 F src/test_loadext.c df586c27176e3c2cb2e099c78da67bf14379a56e
 F src/test_malloc.c 8d416f29ad8573f32601f6056c9d2b17472e9ad5
-F src/test_multiplex.c 2bf2eb36c9eff73c808ba6d19388e2f577438d9e
+F src/test_multiplex.c 5dc22dbeb43b304373b6d5c6fe6ea295d78caf02
 F src/test_multiplex.h e99c571bc4968b7a9363b661481f3934bfead61d
 F src/test_mutex.c a6bd7b9cf6e19d989e31392b06ac8d189f0d573e
 F src/test_onefile.c 40cf9e212a377a6511469384a64b01e6e34b2eec
@@ -630,7 +630,7 @@ F test/pageropt.test 9191867ed19a2b3db6c42d1b36b6fbc657cd1ab0
 F test/pagesize.test 1dd51367e752e742f58e861e65ed7390603827a0
 F test/pcache.test 065aa286e722ab24f2e51792c1f093bf60656b16
 F test/pcache2.test a83efe2dec0d392f814bfc998def1d1833942025
-F test/permutations.test 8db6d3b72e6ce423cfb94d87926e5edcb4b0078f
+F test/permutations.test 0f40a13ba43170a0f4e179c9ac0b77bc87c490fe
 F test/pragma.test 7fa35e53085812dac94c2bfcbb02c2a4ad35df5e
 F test/pragma2.test 3a55f82b954242c642f8342b17dffc8b47472947
 F test/printf.test ec9870c4dce8686a37818e0bf1aba6e6a1863552
@@ -986,7 +986,7 @@ F tool/tostr.awk e75472c2f98dd76e06b8c9c1367f4ab07e122d06
 F tool/vdbe-compress.tcl d70ea6d8a19e3571d7ab8c9b75cba86d1173ff0f
 F tool/warnings-clang.sh 9f406d66e750e8ac031c63a9ef3248aaa347ef2a
 F tool/warnings.sh fbc018d67fd7395f440c28f33ef0f94420226381
-P 429380f99c59ca10de18638ce6f9ec7c47082999
-R 9b790a47dcff0bf2c5786bcb4562c116
-U drh
-Z 8f90de0c23a8df1cb3585afb30babe53
+P fc9179e154751b51ddef429600d30a89d4a098bd
+R b97de21d05351bae95745d0c83332eb7
+U dan
+Z 54c888cc6eca4296547cf85c4dc77f0c
diff --git a/manifest.uuid b/manifest.uuid
index 463a7e20cf..4f4da0f8c4 100644
--- a/manifest.uuid
+++ b/manifest.uuid
@@ -1 +1 @@
-fc9179e154751b51ddef429600d30a89d4a098bd
\ No newline at end of file
+12f5b8c9c9a15bd9e6aabdc708d4e869ff918e76
\ No newline at end of file
diff --git a/src/test_multiplex.c b/src/test_multiplex.c
index eceb8d74ab..62fad9c79f 100644
--- a/src/test_multiplex.c
+++ b/src/test_multiplex.c
@@ -220,9 +220,27 @@ static int multiplexStrlen30(const char *z){
 /*
 ** Generate the file-name for chunk iChunk of the group with base name
 ** zBase. The file-name is written to buffer zOut before returning. Buffer
-** zOut must be allocated by the caller so that it is at least (nBase+4)
+** zOut must be allocated by the caller so that it is at least (nBase+5)
 ** bytes in size, where nBase is the length of zBase, not including the
 ** nul-terminator.
+**
+** If iChunk is 0 (or 400 - the number for the first journal file chunk),
+** the output is a copy of the input string. Otherwise, if 
+** SQLITE_ENABLE_8_3_NAMES is not defined or the input buffer does not contain
+** a "." character, then the output is a copy of the input string with the 
+** three-digit zero-padded decimal representation if iChunk appended to it. 
+** For example:
+**
+**   zBase="test.db", iChunk=4  ->  zOut="test.db004"
+**
+** Or, if SQLITE_ENABLE_8_3_NAMES is defined and the input buffer contains
+** a "." character, then everything after the "." is replaced by the 
+** three-digit representation of iChunk.
+**
+**   zBase="test.db", iChunk=4  ->  zOut="test.004"
+**
+** The output buffer string is terminated by 2 0x00 bytes. This makes it safe
+** to pass to sqlite3_uri_parameter() and similar.
 */
 static void multiplexFilename(
   const char *zBase,              /* Filename for chunk 0 */
@@ -231,9 +249,9 @@ static void multiplexFilename(
   int iChunk,                     /* Chunk to generate filename for */
   char *zOut                      /* Buffer to write generated name to */
 ){
-  memcpy(zOut, zBase, nBase+1);
+  int n = nBase;
+  memcpy(zOut, zBase, n+1);
   if( iChunk!=0 && iChunk!=SQLITE_MULTIPLEX_JOURNAL_8_3_OFFSET ){
-    int n = nBase;
 #ifdef SQLITE_ENABLE_8_3_NAMES
     int i;
     for(i=n-1; i>0 && i>=n-4 && zOut[i]!='.'; i--){}
@@ -247,7 +265,11 @@ static void multiplexFilename(
     }
 #endif
     sqlite3_snprintf(4,&zOut[n],"%03d",iChunk);
+    n += 3;
   }
+
+  assert( zOut[n]=='\0' );
+  zOut[n+1] = '\0';
 }
 
 /* Compute the filename for the iChunk-th chunk
@@ -266,7 +288,7 @@ static int multiplexSubFilename(multiplexGroup *pGroup, int iChunk){
   if( pGroup->zName && pGroup->aReal[iChunk].z==0 ){
     char *z;
     int n = pGroup->nName;
-    pGroup->aReal[iChunk].z = z = sqlite3_malloc( n+4 );
+    pGroup->aReal[iChunk].z = z = sqlite3_malloc( n+5 );
     if( z==0 ){
       return SQLITE_NOMEM;
     }
@@ -611,7 +633,7 @@ static int multiplexDelete(
     */
     int nName = strlen(zName);
     char *z;
-    z = sqlite3_malloc(nName + 4);
+    z = sqlite3_malloc(nName + 5);
     if( z==0 ){
       rc = SQLITE_IOERR_NOMEM;
     }else{
diff --git a/test/permutations.test b/test/permutations.test
index 922e6e37ef..fa09e4a6ac 100644
--- a/test/permutations.test
+++ b/test/permutations.test
@@ -142,7 +142,7 @@ test_suite "valgrind" -prefix "" -description {
   Run the "veryquick" test suite with a couple of multi-process tests (that
   fail under valgrind) omitted.
 } -files [
-  test_set $allquicktests -exclude *malloc* *ioerr* *fault*
+  test_set $allquicktests -exclude *malloc* *ioerr* *fault* wal.test
 ] -initialize {
   set ::G(valgrind) 1
 } -shutdown {