Update.

go.mod

@@ -5,13 +5,11 @@ go 1.21
 require (
 	github.com/ncruces/julianday v1.0.0
 	github.com/psanford/httpreadat v0.1.0
-	github.com/tetratelabs/wazero v1.7.0
+	github.com/tetratelabs/wazero v1.7.1-0.20240410111357-a0fbb185447f
 	golang.org/x/crypto v0.22.0
 	golang.org/x/sync v0.7.0
 	golang.org/x/sys v0.19.0
 	golang.org/x/text v0.14.0
 )
 
 retract v0.4.0 // tagged from the wrong branch
-
-replace github.com/tetratelabs/wazero => github.com/ncruces/wazero v0.0.0-20240409122832-a4dd11a09060

go.sum

@@ -1,9 +1,9 @@
 github.com/ncruces/julianday v1.0.0 h1:fH0OKwa7NWvniGQtxdJRxAgkBMolni2BjDHaWTxqt7M=
 github.com/ncruces/julianday v1.0.0/go.mod h1:Dusn2KvZrrovOMJuOt0TNXL6tB7U2E8kvza5fFc9G7g=
-github.com/ncruces/wazero v0.0.0-20240409122832-a4dd11a09060 h1:dkYSDM1fMCDttJ6sCdlUHP/BiBzG3hJxDnA+k6zUdyY=
-github.com/ncruces/wazero v0.0.0-20240409122832-a4dd11a09060/go.mod h1:ytl6Zuh20R/eROuyDaGPkp82O9C/DJfXAwJfQ3X6/7Y=
 github.com/psanford/httpreadat v0.1.0 h1:VleW1HS2zO7/4c7c7zNl33fO6oYACSagjJIyMIwZLUE=
 github.com/psanford/httpreadat v0.1.0/go.mod h1:Zg7P+TlBm3bYbyHTKv/EdtSJZn3qwbPwpfZ/I9GKCRE=
+github.com/tetratelabs/wazero v1.7.1-0.20240410111357-a0fbb185447f h1:xJ6F/f7fM1OvnPFSn7Ggf9icswSXoYOYLZbu7aJVQbA=
+github.com/tetratelabs/wazero v1.7.1-0.20240410111357-a0fbb185447f/go.mod h1:ytl6Zuh20R/eROuyDaGPkp82O9C/DJfXAwJfQ3X6/7Y=
 golang.org/x/crypto v0.22.0 h1:g1v0xeRhjcugydODzvb3mEM9SQ0HGp9s/nh3COQ/C30=
 golang.org/x/crypto v0.22.0/go.mod h1:vr6Su+7cTlO45qkww3VDJlzDn0ctJvRgYbC2NvXHt+M=
 golang.org/x/sync v0.7.0 h1:YsImfSBoP9QPYL0xyKJPq0gcaJdG3rInoqxTWbfQu9M=

vfs/shm.go

@@ -35,7 +35,7 @@ const (
 
 func (f *vfsFile) shmMap(ctx context.Context, mod api.Module, id, size uint32, extend bool) (uint32, error) {
 	// Ensure size is a multiple of the OS page size.
-	if int(size)%unix.Getpagesize() != 0 {
+	if int(size)&(unix.Getpagesize()-1) != 0 {
 		return 0, _IOERR_SHMMAP
 	}