hush problem with the exec command

[Martinb_ARM_NOMMU_KISSDVD]

If I try to use the exec from a script it will fail
I’m not sure if this is a old bug because i never did use the hush as a
active shell
(I always did use lash 1.1)

to reproduce i did:

1- make a simple script named testscript

/paste
#!/bin/hush

export TVOFF=`echo hallo`
echo $TVOFF
/endpaste

Run this from prompt will run ok

If I run this with the exec my telnet is exiting

If I try to run strace from a other console and I attach I get:

--- SIGCHLD (Child exited) @ 0 (0) ---
read(3, "hallo\r\n", 4000)              = 7
select(4, [0 3], [1], NULL, NULL)       = 2 (in [3], out [1])
write(1, "hallo\r\n", 7)                = 7
read(3, 0x1cdafdf, 3993)                = -1 EIO (Input/output error)
write(1, "\r\n", 2)                     = 2
_exit(0)                                = ?
Process 66 detached

I repeat:
if i just run this from console with:
./testscript
its ok

If I run this from console with:
exec ./testscript
It will exit / fail

The problem for me is that i use the exec inside scripts and this is broken

I guess its related to the NOMMU
Would be nice if someone can give this a look, so I can finally get rid of
lash and the old hush