From: Tom Flynn (flynnt++at++engr.sgi.com)
Date: 01/19/2002 01:23:59
On Fri, 18 Jan 2002, Mark Lewis wrote:
> We are experiencing a similar problem to this, in that on a dual CPU PC
> our Performer based app locks up after a few runs, but only if a DBASE
> process is forked, and it's fine if we use the single processor kernel.
>
> We are using Performer 2.5 Beta2.
>
> We do not get the error message, but we are using an older kernel
> (2.4.7-10). If you do a "ps -efl" on the machine in the locked state,
> you can see that the DBASE is waiting on a semaphore (semop).
>
> Please can we have a comment on (or preferably a solution to) this from
> the Performer team.
It is being looked into. I've double checked Performer's semaphore code
and it looks correct. Everything matches up. It needs further
investigation. Please be patient.
thanks,
tom
>
> Thanks
>
> Jason Daly wrote:
> >
> > Hi, when running Perfly (or any of the Performer programs we've written)
> > for a certain length of time (about 10 minutes, give or take), the program
> > crashes with this error:
> >
> > PF Fatal/Internal: : Numerical result out of range
> > PF Warning/SysErr(34): Error posting semaphore 248011 [9] in pid 2013
> > PF Fatal/Internal: PF_USPSEMA() errno = 0
> >
> > (the semaphore and pid numbers are obviously different each time). This
> > happens whether or not I have set the _PF_SEMA_NEW_PARADIGM variable to 0.
> >
> > System configuration:
> >
> > SGI 330L with 2 P3/933, VR7 gfx, and 1GB RAM
> > Red Hat 7.2
> > Performer 2.4.2 (full version)
> > NVIDIA driver 1.0-1251 (same error on 1541 and 2313/2314)
> >
> > Same error happens on this system:
> >
> > Dell Workstation 420, 2 P3/1GHz, NVIDIA GeForceII/MX, 512MB RAM
> > Same OS, Performer revision, NVIDIA driver.
> >
> > We've also tried with the full version of Performer 2.4.0 and the demo
> > version of Performer 2.5 and gotten the same result. As indicated we've
> > tried NVIDIA drivers 1241, 1541, and the latest 2313/2314 drivers with
> > no improvement. If we run on a single-processor machine, or in
> > PFMP_APPCULLDRAW mode this problem does NOT happen.
> >
> > Any help with this issue would be GREATLY appreciated.
> >
> > Thanks!
> >
> > --"J"
> >
> > "I'm a castaway stranded in a desolate land,
> > I can see the footprints in the virtual sand."
> > --Neil Peart
> >
> > -----------------------------------------------------------------------
> > List Archives, Info, FAQ: http://www.sgi.com/software/performer/
> > Open Development Project: http://oss.sgi.com/projects/performer/
> > Submissions: info-performer++at++sgi.com
> > Admin. requests: info-performer-request++at++sgi.com
> > -----------------------------------------------------------------------
>
> --
> Mark C Lewis
>
> Software Development Manager
> Equipe Electronics Ltd.
>
> "Visualising Your Imagination"
>
> Phone +44 (0) 1903 216 622
> FAX +44 (0) 1903 216 633
> Mobile +44 (0) 7939 109 910
>
> mailto:markl++at++equipe.ltd.uk
> http://www.equipe.ltd.uk
>
> 13 Liverpool Gardens
> Worthing, W. Sussex
> BN11 1RY
> ENGLAND
> -----------------------------------------------------------------------
> List Archives, Info, FAQ: http://www.sgi.com/software/performer/
> Open Development Project: http://oss.sgi.com/projects/performer/
> Submissions: info-performer++at++sgi.com
> Admin. requests: info-performer-request++at++sgi.com
> -----------------------------------------------------------------------
>
-- "Mongooses are famous for their snake-fighting ability, and are almost always victorious because of their speed, agility, and timing and also because of their thick coat."
This archive was generated by hypermail 2b29 : Sat Jan 19 2002 - 01:24:04 PST