[Zope] Re: Consistent Data.fs corruption in 2.6.1

[David Lutz]

Quoting Maik Jablonski <maik.jablonski@uni-bielefeld.de>:

> Robin Breathe wrote:
> > I believe we have found a bug in the 2.6.1 release (possibly more 
> > specifically in ZODB 3.1.1).
> > 
> > -----------
> > # Summary:
> > -----------
> > 
> > When an undo is the last transaction preceeding a "pack(days:float=0)", 
> > the FileStorage is corrupted.
> 
> Hi,
> 
> can you add your whole valuable description as followup to:
> 
> http://collector.zope.org/Zope/875
> 
> Seems to be the same wired bug which killed already some of my objects...
> 
> Cheers, Maik

We are running Zope 2.6.1 on FreeBSD.  Our website was down for 3 days (after
packing) with a POSKeyError, probably caused by the same bug.
 
I eventually fixed the Data.fs by using an old installation of 2.5.1 and the
fsrecover.py that shipped with it.

David