[squeak-dev] Re: [Vm-dev] new Cog VMs available

Eliot Miranda eliot.miranda at gmail.com
Wed Feb 6 22:40:04 UTC 2013


On Wed, Feb 6, 2013 at 1:36 PM, Frank Shearar <frank.shearar at gmail.com>wrote:

> http://build.squeak.org/job/SqueakTrunk/153/console shows r.2678's new
> output:
>
> stack page bytes 4096 available headroom 3300 minimum unused headroom 3496
>

it may seem not to make sense, since unused headroom is > available
headroom, but the system is measuring unused space in a stack page, and if
a page hasn't filled up the portion used by Smalltalk (4096 - 3300) then
the unused space will be > available headroom.


> frank
>
> On 6 February 2013 20:10, Eliot Miranda <eliot.miranda at gmail.com> wrote:
> >
> > http://www.mirandabanda.org/files/Cog/VM/VM.r2678
> >
> > CogVM binaries as per VMMaker.oscog-eem.264/r2678.
> >
> > Fix snapshot primitive failure in the StackVM and Cogit.  The
> > primitive should fail, not merely return the receiver.  Also if in
> > Cogit, need to back-up instruction pointer on failure.
> >
> > Make reportMinimumUnusedHeadroom more informative (also print
> > available headroom).
> >
> > --
> > best,
> > Eliot
> >
>
>


-- 
best,
Eliot
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