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Re: How to add timeout to Ada tests on Linux/ia64?
On Thu, 2004-03-25 at 21:16, Chris Proctor wrote:
> On Thu, Mar 25, 2004 at 01:43:46PM +0100, Arnaud Charlet wrote:
> > > I tried 0.01 but still basicly got the same intermittant failures.
> >
> > Please tell us which failures you're seeing, because we're discussing
> > in the dark otherwise.
> >
> > Arno
>
> I believe from memory the main test I was seeing problems with
> was C954025. This test has delays of 0.5, 1.0 and 2.0 seconds.
> When these are multiplied by 0.001 the resultant delays become
> much less that the HZ(100) scheduling of a loaded Linux machine.
Funny I never see this one failing but it tests order of
operations and delays and can deadlock in some cases,eg:
main: Launch_Control.Enable_Launch_Control;
Launch_Control:Enable_Launch_Control
main:Mission_Control.Do_Launch;
Mission_Control:Launch_Control.Start_Countdown
Launch_Control:Start_Countdown, delay too small, select on null, loop back to top
Mission_Control:requeue hangs
I guess it's more visible on loaded multiprocessors.
So it's safer to remove all Impdef.One_Second
for this test and document why. Arnaud, do you agree with my
analysis?
Laurent