Re: Two rapid VT_ACTIVATE's

James Simmons (jsimmons@transvirtual.com)
Fri, 5 Apr 2002 09:27:36 -0800 (PST)

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> I wonder what happens when somebody calls VT-ACTIVATE in close succession.
> So that the second one overwrites the first one. Let's assume the first one is
> generated by program #1 and the second one by program #2. And some of the programs
> may be using graphics and some of them text. What will happen? Will screen corruption
> and/or kernel crash induced by botched videocard registers result?

In theory the vt_dont_switch lock should protect you from this.

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