diff --git a/ext/wasm/api/sqlite3-vfs-opfs-sahpool.c-pp.js b/ext/wasm/api/sqlite3-vfs-opfs-sahpool.c-pp.js
index ac5e2a2248..cb4864e3be 100644
--- a/ext/wasm/api/sqlite3-vfs-opfs-sahpool.c-pp.js
+++ b/ext/wasm/api/sqlite3-vfs-opfs-sahpool.c-pp.js
@@ -462,7 +462,6 @@ globalThis.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
       /* Inherit certain VFS members from the default VFS,
          if available. */
       opfsVfs.$xRandomness = dVfs.$xRandomness;
-      opfsVfs.$xSleep = dVfs.$xSleep;
       dVfs.dispose();
     }
     if(!opfsVfs.$xRandomness && !vfsMethods.xRandomness){
@@ -475,9 +474,14 @@ globalThis.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
         return i;
       };
     }
-    if(!opfsVfs.$xSleep && !vfsMethods.xSleep){
-      vfsMethods.xSleep = (pVfs,ms)=>0;
-    }
+    /**
+       This VFS's xSleep() must be a no-op. In this environment,
+       only db handles within the same thread can ever come into
+       contention, and that contention cannot be resolved if
+       one of the handles sleeds in that same thread.
+       See also: forum:3f0794c5d8
+    */
+    vfsMethods.xSleep = (pVfs,ms)=>0;
     sqlite3.vfs.installVfs({
       vfs: {struct: opfsVfs, methods: vfsMethods}
     });
diff --git a/manifest b/manifest
index 71b2c1b7b7..eb887e9c49 100644
--- a/manifest
+++ b/manifest
@@ -1,5 +1,5 @@
-C JS:\swhen\sdisposing\sof\sa\sC\sstruct\sinstance,\sdo\snot\sunmap\sthe\s'pointer'\sproperty\sinterceptor\suntil\safter\sall\sclient-added\sfinalizers\shave\sbeen\scalled.
-D 2026-09-30T13:18:14.287
+C Do\snot\sinherit\sthe\sOPFS\sSAHPool's\sxSleep\smethod\sfrom\sthe\sdefault\sVFS,\sas\sdoing\sso\scan\scause\sthe\sthread\sto\sfreeze.\sThis\sVFS\sonly\sdeals\swith\scontention\soriginating\sin\sthe\ssame\sthread,\sso\sxSleep()\sneeds\sto\sbe\sa\sno-op.\sAddresses\s[forum:3f0794c5d8|bug\sreport\s2026-09-30T12:52:54Z].
+D 2026-09-30T13:23:56.388
 F .fossil-settings/binary-glob 61195414528fb3ea9693577e1980230d78a1f8b0a54c78cf1b9b24d0a409ed6a x
 F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
 F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
@@ -609,7 +609,7 @@ F ext/wasm/api/sqlite3-license-version-header.js 98d90255a12d02214db634e041c8e7f
 F ext/wasm/api/sqlite3-opfs-async-proxy.c-pp.js f378c8edd98941bdfa32bae0db86f5cc6410c69b28943d9761f2d95511630029
 F ext/wasm/api/sqlite3-vfs-helper.c-pp.js 57a54bd6351a52100743b1eac44fc20a858f44838df249bb1e7facac2127b110
 F ext/wasm/api/sqlite3-vfs-kvvfs.c-pp.js 6327e15f7ffeb471ed1dc10ed98aab1896d61c2ec9c6646a337d4d2f8b3f7bb9
-F ext/wasm/api/sqlite3-vfs-opfs-sahpool.c-pp.js f8ebfd97054aec2d4212aa1a42e0f80a595187466722cf19e31fcc71b91d5310
+F ext/wasm/api/sqlite3-vfs-opfs-sahpool.c-pp.js d63b2857da2234759820d592f808b37f64c9d24d6b1623d75b1104ecce9dfc28
 F ext/wasm/api/sqlite3-vfs-opfs-wl.c-pp.js 60fa106fc11d31adb1773ac16dd60fc9335a35496b0ca7bab8b4032cb61a441b
 F ext/wasm/api/sqlite3-vfs-opfs.c-pp.js 5dd8410121acf623ce53005a4aab2c7b2b7f5d1ad072f69ebc208882bc7b7236
 F ext/wasm/api/sqlite3-vtab-helper.c-pp.js 3218318194b11fa625ebda9f7900280c5c26cf257ab5b2b66709ce58e9531624
@@ -2221,8 +2221,8 @@ F tool/warnings-clang.sh bbf6a1e685e534c92ec2bfba5b1745f34fb6f0bc2a362850723a9ee
 F tool/warnings.sh a554d13f6e5cf3760f041b87939e3d616ec6961859c3245e8ef701d1eafc2ca2
 F tool/win/sqlite.vsix deb315d026cc8400325c5863eef847784a219a2f
 F tool/winmain.c 00c8fb88e365c9017db14c73d3c78af62194d9644feaf60e220ab0f411f3604c
-P 9e2caaa382cee5d5df26ad3af7d727ab3f68a912e39655ffcc52f592d5a08a8d
-R bee390359e76358b84c4ea5fe5ff4089
+P fa44643f65d6815c8c21ec25e7aa6e39a00fdc818d1d058e03123042e45884e1
+R 3a63c51ccb58b2a22c00bdb1b8f5247c
 U stephan
-Z 4ff29a481b1fb8b2a35002dd6ce97aa5
+Z 901de4bdf6f0c30a65a3330271325068
 # Remove this line to create a well-formed Fossil manifest.
diff --git a/manifest.uuid b/manifest.uuid
index 373282ea32..a3c528ac13 100644
--- a/manifest.uuid
+++ b/manifest.uuid
@@ -1 +1 @@
-fa44643f65d6815c8c21ec25e7aa6e39a00fdc818d1d058e03123042e45884e1
+c9dd4d88e44a9eae4ea11d0ce5491c7ac2ac2d60a3bc83ed485812234be374da