[User-mode-linux-user] Re: user-mode port 0.24-2.3.99-pre9

[Pavel M. <pa...@su...>]

Hi!

> The user-mode port of 2.3.99-pre9 is available.
> 
> There is now a real hardware interrupt mechanism, which I got by copying the 
> i386 irq code, and wrapping user-mode stuff around it.  The consoles and 
> network device now do their I/O off interrupts rather than the timer, which 
> greatly reduces latency.  The interactive feel is much better, especially 
> under X.
> 
> As a side-effect of this, 'cat /proc/interrupts' will no longer hang the 
> kernel :-)
> 
> I fixed the stair-stepping problem with the console output.
> 
> I also fixed the problem that some people had running kernels that they had 
> built themselves.  So, if you built a -pre8 kernel from source, and it did 
> nothing but hang, that's fixed.
> 
> I've also got some caveats to go with this batch of good news.  Now that this 
> port is much more interrupt-driven, it is more prone to races.  I've fixed a 
> bunch of them, but I still see an occasional process segfault.
> 
> There is also a slight difficulty at times with the network.  Sometimes 
> packets will stop flowing.  I have no idea why, but typing at a console will 
> wake things up and get those packets flowing again.  This is most easy to 
> reproduce under X (start an xterm and a window manager and wave the mouse in 
> and out of the xterm, and after a while, the xterm will stop blinking and the 
> mouse will stop changing shape), but I've also seen it affect ping.

Does that mean that you can now run X under uml?


-- 
I'm pa...@uc.... "In my country we have almost anarchy and I don't care."
Panos Katsaloulis describing me w.r.t. patents me at di...@li...