calcru: runtime went backwards, RELENG_6, SMP
dillon at apollo.backplane.com
Tue Jun 12 02:13:58 UTC 2007
: cs3661.rinet.ru 22.214.171.124 2 u 354 1024 377 5.305 -66314. 4321.47
: ns.rinet.ru 126.96.36.199 2 u 365 1024 377 6.913 -66316. 4305.33
: whale.rinet.ru 188.8.131.52 2 u 358 1024 377 7.939 -66308. 4304.90
:Any directions to debug this?
:D.Marck [DM5020, MCK-RIPE, DM3-RIPN]
Since you are running on HEAD now, could you also kgdb the live kernel
and print cpu_ticks? I believe the sequence is (someone correct me if
I am wrong):
kgdb /kernel /dev/mem
As for further tests... try building a non-SMP kernel (i.e. one that
only recognizes one cpu) and see if the problem occurs there. That
will determine whether there is a basic problem with time keeping or
whether it is an issue with SMP.
I'm afraid there isn't much more I can do to help, other then to make
suggestions on tests that you can run that will hopefully ring a bell
with another developer.
<dillon at backplane.com>
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