[Pharo-project] [Vm-dev] Cog issue? Re: StandardFileStream size limit?

Eliot Miranda eliot.miranda at gmail.com
Wed Jun 13 18:00:29 EDT 2012


On Wed, Jun 13, 2012 at 7:40 AM, David T. Lewis <lewis at mail.msen.com> wrote:

>
> On Wed, Jun 13, 2012 at 04:08:14PM +0200, G?ran Krampe wrote:
> >
> > Hey!
> >
> > Ok, so the plot thickens:
> >
> > If I run this in a "oneclick 1.4" I will get a file write error on 2Gb:
> >
> > | f b |
> > f := StandardFileStream newFileNamed: 'test'.
> > b := ByteArray new: 1024*1024*100. "100Mb"
> > [30 timesRepeat: [f nextPutAll: b]] ensure: [f close] "3Gb"
> >
> >
> > ...but it worked fine using a self built "standard" VM from squeakvm.org
> > (4.4.7.2357)! Same image btw.
> >
> > Now, does it work with the bleeding edge Cog? Tried r2556 and nope, same
> > problem.
> >
> > So I "guess" it is a Cog thing? I haven't tried building Cog from source.
> >
> > regards, G?ran
>
> Background on large file support, see especially Bert's summary:
>
>
> http://forum.world.st/Re-squeak-dev-filesize-reporting-0-for-very-large-files-td4483646.html
> http://bugs.squeak.org/view.php?id=7522
> http://www.suse.de/~aj/linux_lfs.html
>
> I'm not sure if the Cog VMs are being compiled with the the LFS option,
> although
> I expect that if you compile it yourself with the build options that Bert
> explains,
> then it should start working.
>

I just committed the necessary changes for my branch.  Will rebuild soon.
 Göran, if you're in a hurry build your own?  You'd need to be in
http://www.squeakvm.org/svn/squeak/branches/Cog/unixbuild/bld and run ./mvm.
-- 
best,
Eliot
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