Re:

[Dave Airlie]

On Mon, 22 Oct 2018 at 10:49, Michael Tirado <mtirado418@xxxxxxxxx> wrote:
>
> On Mon, Oct 22, 2018 at 12:26 AM Dave Airlie <airlied@xxxxxxxxx> wrote:
> >
> > This shouldn't be necessary, did someone misbackport the mmap changes without:
> >
> > drm: set FMODE_UNSIGNED_OFFSET for drm files
> >
> > Dave.
>
> The latest kernel I have had to patch was a 4.18-rc6.  I'll try with a
> newer 4.19 and let you know if it decides to work.  If not I'll
> prepare a test case for demonstration on qemu-system-i386.

If you have custom userspace software, make sure it's using
AC_SYS_LARGEFILE or whatever the equivalant is in your build system.

64-bit file offsets are important.

Dave.