[PATCH 1/1] Fix bugs determining active VT consoles

[Joe Marcus Clarke]

On Fri, 2007-08-31 at 12:22 -0400, William Jon McCann wrote:
> On 8/30/07, Joe Marcus Clarke <marcus at freebsd.org> wrote:
> > On FreeBSD, having a process sit in VT_WAITACTIVE can cause kernel panics or
> > unkillable processes that consume 100% of the CPU.  To work around this
> > problem, replace the model where individual threads call VT_WAITACTIVE
> > with a g_timeout model which checks the active VT every second, and queues
> > an event when it changes.
> 
> As I said in the other mail, I don't think we want to do this.  Can
> you describe why you think this isn't a FreeBSD kernel bug?

I missed the other email, sorry.  From my reading of what this ioctl is
supposed to do, it is typically called after activating a given VT to
ensure that the VT is active before proceeding.  It should not be
something a program sits in for long periods of time.

Joe

-- 
Joe Marcus Clarke
FreeBSD GNOME Team      ::      gnome at FreeBSD.org
FreeNode / #freebsd-gnome
http://www.FreeBSD.org/gnome
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