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Re: X server in dom0: Bad VBT signature
On 28 August 2012 17:19, Eric Schnoebelen <eric%cirr.com@localhost> wrote:
> rudolf writes:
> - Pierre Pronchery wrote:
> - > http://gnats.netbsd.org/cgi-bin/query-pr-single.pl?number=46634
> - >
> - > http://uberwall.org/bin/project/browse/101/UWvbiosdump?file=%
> - > 2FUWvbiosdump.c%2Cv&revision=1.1
> - >
> - > http://mail-index.netbsd.org/port-xen/2012/04/thread1.html
> - Thanks for the pointers, it's good to see I am not alone in this
> - trouble, it raises the probability, that somebody finds the problematic
> - spot.
> - I'll try digging in the code a bit, but I don't have any experience in
> - this area and my chances are thus diminutive.
> I suspect it stopped working when XEN_DOM0 kernels stopped
> allowing arbitrary kernel memory access somewhere post 5.99.52.
> (I'm thinking the discussion took place in mid-2011, but I could
> easily be wrong.)
> I have a faint rememberance of an option being added to define
> a pass-through region, but that too could be figment of my
> I've been suffering from the lack of ability to run X on dom0
> since 6.0_BETA, so one system is still running 5.1_STABLE, while
> another is running 5.99.52.
> Eric Schnoebelen eric%cirr.com@localhost
> "I did what any self-respecting hacker would do.
> I reinvented a third wheel" -- Barry Warsaw
riz@ and I have found the breakage, if you're in a hurry you can try
backing out this commit:
We'll get a proper fix in ASAP.
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