RE: [PATCH] io_thread/x86: don't reset 'cs', 'ss', 'ds' and 'es' registers for io_threads

David Laight
2021-05-06T09:54:01Z

> > (To avoid confusion, this is not a universal property of Linux. arm64
> > and arm32 tasks on an arm64 Linux host are different and cannot
> > arbitrarily switch modes.)
>
> Although there are patches lurking to change that.
> (not from me).

Actually they may be just to allow 64bit tasks make 32bit system calls.
The code is almost certainly still 54bit.

David

-
Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK
Registration No: 1397386 (Wales)