[rrd-users] VDEF hangs rrdtool

[Dag Erlandsson]

It looks like it was the optimizer. If turning it off it works OK.
Added some other printf and fond that the steps was wrong calculated.

The Diff is src->end - src->start (not calculated corrct)

Diff=4294880656
Step=240
DEBUG: start == 1182873600, end == 1182960240, 17895336 steps

I tested with some other expression to get it correct.

steps = ((long)src->end - (long)src->start) / src->step; Same result.

steps = src->end;
steps -= src->start;
steps /= src->step;
Also same result.

I was not able to find any expression that gives the correct result with
optimition.


Thanks for the help.

/Dag

2007/6/27, Alex van den Bogaerdt <alex at ergens.op.het.net>:
>
> On Tue, Jun 26, 2007 at 11:53:43PM +0200, Dag Erlandsson wrote:
> > It hangs with AVERAGE, MINIMUM and LAST also.
>
> Ack.
>
> > The strange thing is that if I enable the debug printf in the beginning
> of
> > vcalc_def() function, it prints out AND returns OK.
> > Then I tested to remove the debug printf again and now it hangs again.
>
> :-)
>
> Maybe a faulty optimizer?  Try different optimizer settings when
> compiling.
>
> > So just now I'm in the situation when I add printfs to see what happens
> it
> > works, removes the dosn't work. It looks like I have to learn how to use
> > gdb. Can it be run on an ARM7 platform?
>
> Sorry, can't help here.
>
> --
> Alex van den Bogaerdt
> http://www.vandenbogaerdt.nl/rrdtool/
>
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