[Vm-dev] Bug in writing compressed stream when saving an mcz (was: New Cog VMs available...)

David T. Lewis lewis at mail.msen.com
Thu Jul 3 00:08:42 UTC 2014

On Wed, Jul 02, 2014 at 03:48:03PM -0700, Eliot Miranda wrote:
> On Wed, Jul 2, 2014 at 3:39 PM, Nicolas Cellier <
> nicolas.cellier.aka.nice at gmail.com> wrote:
> >
> > Anyway, it happens that I cannot publish because there is a bug in my
> > image (mostly an updated trunk image)...
> > I'm currently stuck with ZipWriteStream(DeflateStream)>>updateHashAt:
> > which tries to write at position 65537 in a buffer of length 65536
> > Huh?
> >
> Ah, I've seen this recently too!  I think it's just a corrupted mcz
> package.  Delete the package and download a fresh one and you could find
> the bug evaporates.

I saw it last weekend too. I thought that it was an improbable edge condition,
so I did not mention it on squeak-dev until I could explain the bug.

It is not a corrupted mcz. In my case, the failure occurred while trying to
write a new mcz.

We should move this to squeak-dev and figure out what is going on.


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