Ownership Chain Doesn't Work When Access Cross Database

i have enable cross database chain,but it return error message:



The server principal "S-1-9-3-1149532189-1170944071-2610337685-3868961652." is not able to access the database "db2" under the current security context.


I list the sql script as follows:






Code Block


use master;
go
create database db1;
create database db2;
go
use db2
go
create table table1
(
col int
)
go
use db1
go

create user u1 without login
go
create proc p1
as
insert into db2.dbo.table1 values(1)
go
grant execute on p1 to u1



execute as user='u1'
exec p1





thanks