Re: via timer/clock problem workaround

[Eric Seppanen <eds@reric.net>]

Note that most of this thread occurred off-list and this is the tail end.

It looks as though the timer tick interrupt is going away.  If true, 
that's well outside the scope of what can be detected/repaired from inside 
do_gettimeofday().  So the workarounds posted on this list that I've seen 
look like the wrong approach.  That includes the fix that's in 2.4.18.


On Thu, May 23, 2002 at 09:38:12AM -0700, george anzinger wrote:
> Eric Seppanen wrote:
> > george anzinger wrote:
> > > The unfortunate thing about the fix is that execution of the
> > > detection code requires some one to request the time of
> > > day.  This, of course, could be delayed by an arbitrary
> > > time, depending on system activity.
> > 
> > Good point.  Looking at it from that perspective, it may be a waste of
> > time to put fixes in do_gettimeofday().  A dead timer is pretty serious,
> > and I can't think of a simple way to detect it.

On this note, if anybody has any hints on why the timer may be dying, how 
to debug it, or better places to detect/fix it, I'd be grateful.