On Friday 04 May 2007 11:34:40 Jesse Barnes wrote:
> On Thursday, May 03, 2007, Antonino A. Daplas wrote:
> > On Thu, 2007-05-03 at 23:58 -0400, Daniel Hazelton wrote:
> > > On Thursday 03 May 2007 20:39:05 H. Peter Anvin wrote:
> > > > Kyle Moffett wrote:
> > >
> > > I guess I could start on that work again - shouldn't take me all that
> > > long to recover the stuff I lost when a blackout caused my hard drive
> > > to get corrupted beyond recovery (and the automated journal replay
> > > didn't do a damned thing - I think it actually *added* to the
> > > corruption, but I don't think any filesystem would have survived that)
> >
> > You might want to look at the modesetting-101 branch of DRM. It's goal
> > is similar to yours. They even have a drm framebuffer. I don't know
> > how far they are with their goal, but I can see some progress.
> >
> > Here's their git tree:
> >
> > git://git.freedesktop.org/git/mesa/drm#modesetting-101
Nope. Address doesn't work for me.
> It sounds like we'll need a new KD_* flag for this work too, something like
> KD_TEXT_BUT_ONLY_ON_PANIC, sine with the above tree, the kernel will have
> intimite knowledge of the current graphics mode, framebuffer location,
> etc. It should be enough to clear the scanout buffer and output the
> printk, though if there's a lot of rendering going on, the DRM driver
> might have to be pretty smart about it.
Yeah, I had thought about this. What I was thinking was that, on panic, the
kernel could either kill the graphics mode entirely or do something like what
the Amiga used to do - ie: scroll the screeen *down* and insert the error
output at the top. (well, the opposite, really - scroll up and insert, just
to keep the code simple and elegant)
Other than that, well... I figure that if the kernel is using DRM internally
it can easily tell DRM to cancel out all extended rendering contexts -
OpenGL, overlays and such - when the panic happens.
DRH
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]