Subject: Re: /dev/vga and /dev/mem XFree problems with UVM
To: Jason Thorpe <email@example.com>
From: Thor Lancelot Simon <firstname.lastname@example.org>
Date: 02/09/1998 18:01:41
On Mon, Feb 09, 1998 at 02:27:27PM -0800, Jason Thorpe wrote:
> On Mon, 9 Feb 1998 15:19:17 -0500
> Thor Lancelot Simon <email@example.com> wrote:
> > I'm having some trouble using XFree with UVM.
> I know that Chuck has run XFree w/ UVM...
...With which graphics hardware?
> ...and to double-check, I just ran it on my ppro which is running UVM.
> > Fatal server error:
> > xf86MapVidMem: Address 0xf9000000 outside allowable range
> ...this is typical "kernel secure level too high"...
No, it isn't. I changed nothing about the machine or kernel configuration
except for building with options UVM. The securelevel is -1.
Besides, did you notice in the first part of my message that with the XF86_S3
server, I was losing using /dev/vga? That's actually a friend's machine, so
I haven't had a lot of time to hack at it.
> > 284 XF86_SVGA RET mmap -1 errno 22 Invalid argument
> > 284 XF86_SVGA CALL write(0x2,0xefbfd360,0x15)
> > 284 XF86_SVGA GIO fd 2 wrote 21 bytes
> ...but the EINVAL is interesting.
Yeah, it is. But it's not because of the securelevel.
I still want to know why XFree is using 0xf9000000 as the third argument of
the open() it tries to do that mmap from, but that seems like an unrelated