virtuoso-t constantly segfaulting

Gene Heskett gheskett at wdtv.com
Fri Jan 31 03:04:03 GMT 2014


On Thursday 30 January 2014 21:54:58 Thomas Tanghus did opine:

> On Thursday 30 January 2014 21:39 Duncan wrote:
> > > I did not know akonadictl had that option! Will try it as soon as I
> > > get back.
> > > 
> > > 
> > > 
> > > I now see that it also has a 'vacuum' option, but the help text just
> > > says "Vacuum internal storage". Do you have any idea what it does?
> > 
> > Active databases (and filesystems, which work similarly) typically
> > create and delete a lot of records/files.  Akonadi deals with
> > messaging, so consider email and IM messages as they come in, with a
> > lot of them being spam and thus often deleted.  But for performance
> > reasons most databases and filesystems don't normally entirely wipe
> > all those deleted records (files) at the time of deletion; they
> > simply mark them as deleted in their index(s) somewhere and continue.
> 
> Thanks for the very detailed explanation Duncan. I wasn't familiar with
> the "vacuuming" term, but the assumptions I made seemed to be right.
> 
> In another matter, @Gene:
> > Interesting Duncan, but my old 10.04.4 LTS version of it doesn't seem
> > to recognize that and doesn't do anything but throw a help screen, so
> > I have to stop, and restart kmail at least daily or it just gets
> > slower and slower.  I assume the effect is the same?
> 
> "but my old 10.04.4 LTS version"
> 
> Gene, old lad, you're one LTS behind. I appreciate conservatism to a
> certain degree, but you really need to upgrade.

Thanks for the flowers "lad" Indeed... :)  But I am stuck with kernel 
2.6.32-132-rtai to be able to run linuxcnc even in the sim mode.  But we (I 
have mice in my pocket) should be ready to upgrade by 14.04 IF we can patch 
that kernel.  Paolo M. is behind on maintaining the rtai patch kit in 
regard to late kernels.  The xenomai patchkit also looks promising but 
doesn't manage the almost vanishingly small latency jitter figures that the 
RTAI patches can.  That is rather important when running stepper motors as 
jitter burns up available torque.

Cheers, Gene
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page <http://geneslinuxbox.net:6309/gene>

NOTICE: Will pay 100 USD for an HP-4815A defective but
complete probe assembly.

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