IOERROR: zero index/expunge record

Simon Matter simon.matter at
Thu Aug 4 04:56:15 EDT 2011

> Am 04.08.2011 10:06, schrieb Bron Gondwana:
>> Pretty much - and the "patch" would be super-invasive even if someone
>> did write it.
> I opened a bugreport at redhat:
> Maybe they will fix it.


The interesting point is why do you see those problems and others do not.
Since you are running a rebuild of stock RHEL6 cyrus-imapd package it
seems like others should have the same problem since it's out for quite
some time.

>> Everything should migrate itself automatically. It will be VERY slow for
>> a while while it basically does a reconstruct of each mailbox first time
>> you open it to upgrade some of the datastructures.
> I'll setup a test system during the next days and try switching to 2.4.10.
> Just because of being curious: If I switch to the latest version now, is
> it
> possible to switch back to the distribution version, if Redhat fix it? Or
> is a
> downgrade not possible?

You can not directly go back because of the "upgrade some of the
datastructures". While I can suggest running 2.4.10 I'm quite sure it
should also work fine with 2.3.16. So there may really be something wrong
with your system. I'd try to find out first what's going on.

I could send you my 2.4.10 rpms for EL6 (i686 or x86_64) for testing, but
I don't think it's a good idea to upgrade your production box if you may
want to go back to 2.3.16 later.


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