RE: [Xen-devel] X under dom0

[James Harper <JamesH@xxxxxxxxxxxxxxxx>]

This is just a completely random thought and not really related to this thread at all... the X protocol can use shared memory in the case where the display is on the same pc as the application. What would be involved in making shared memory work with X in the case where an application running in a dom != 0 is using a display (X server) on dom0?

 

James

---

From: Keir Fraser
Sent: Tue 17/08/2004 6:12 PM
To: Keir Fraser
Cc: Daisaku Watanabe; xen-devel@xxxxxxxxxxxxxxxxxxxxx
Subject: Re: [Xen-devel] X under dom0

> Hi Daisaku,
> 
> I have a nasty feeling that I've recently broken this by rejecting
> mmap() requests to very low virtual addresses.
> 
> Please pull the very latest unstable tree, build it, and when you
> start X please look on the kernel console (e.g., by using dmesg) to
> see whether you get a line of the form:
>  WARNING: Preventing a mmap() request by XXX at XXX, len XXX
> 
> If you do then this is a problem that I can fix. :-)
> 
>  -- Keir

Don't bother with this -- I confirmed that this is the problem from
the strace log that you sent previously. I'll look into a fix.

 -- Keir


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