On Fri, Jun 20, 2014 at 2:39 PM, Frank Shearar <frank.shearar at gmail.com> wrote:
>   pthread_setschedparam failed; consider using ITIMER_HEARTBEAT:
> Operation not permitted

>From the source:

    http://squeakvm.org/cgi-bin/viewvc.cgi/squeak/branches/Cog/platforms/unix/vm/sqUnixHeartbeat.c?revision=2935&view=markup#l360

it looks like maybe you do not have permissions to set thread
priorities.  Did you configure /etc/security/limits.d/squeak.conf?  If
not, then there are some instructions here:

  http://forum.world.st/New-Cog-VMs-available-td4701895.html

Regards,
-- Bob