Zimbra

rolandbreedveld · #21 (**permalink**) 10-27-2009, 06:36 AM

Raised bug 0003941 at CentOS:

mstroven · #22 (**permalink**) 11-05-2009, 10:39 AM

Seeing the same with CentOS 5.4 and Zimbra 6. The consensus out there is that this is a problem with the XEN 3.0.x included in Centos 5.3 and above. If this is the case, is anyone aware of a version os XEN that fixes this?

mrball · #23 (**permalink**) 01-09-2010, 11:16 PM

Getting this exact same problem on Centos 5.4 after upgrading to Zimbra 6.0.4.

No issue when using Zimbra 5.0.5.

Anyone found a solution yet?

phoenix · #24 (**permalink**) 01-10-2010, 12:41 AM

Quote:

Originally Posted by mrball

Anyone found a solution yet?

This isn't a Zimbra problem it's a problem with xen, please read the rest of this thread.

mrball · #25 (**permalink**) 01-10-2010, 01:17 AM

I have spent some time researching around this and it might be a problem with Xen but unfortunately there is no easy way for me to do either of the solutions that will probably work:

1. Change to a 64 bit xen domU (as the dom0 is 32 bit)
2. Upgrade to the latest stable xen (latest xen on RHEL5 is 3.03, latest stable is 3.4.1 but with no official RHEL5 RPM and I really do not want to do this on a production server with 10 VMs)

I am currently on Zimbra 5.0.5 and there is no issue like this.

I setup test VMs and tried upgrading to 6.0.4 and also 5.0.21, both of which caused this issue to happen.

The fact that 5.0.5 does not suffer from this issue, and 5.0.21 does, leads me to think that there might be a way to workaround this, without resorting to changing Xen.

What might have changed from 5.0.5 to 5.0.21 to have caused this?

mrball · #26 (**permalink**) 01-10-2010, 08:29 PM

I have tested several versions of Zimbra to find out where this error starts appearing:

#5.0.5 - WORKS - openldap-2.3.41.6z openldap-clibs-2.3.41.6z
#5.0.10 - WORKS - openldap-2.3.43.5z openldap-clibs-2.3.43.5z
#5.0.16 - WORKS - openldap-2.3.43.8z openldap-clibs-2.3.43.8z
#5.0.18 - DOES NOT WORK - openldap-2.3.43.10z openldap-clibs-2.3.43.10z

So this issue only started appearing in 5.0.18 when openldap version moved from 2.3.43.8z to 2.3.43.10z.

mrball · #27 (**permalink**) 01-14-2010, 07:14 AM

seems like these guys (ruby enterprise edition), had the same issue, and managed to workaround by recompiling with some flags:

Quote:

I think I fixed this.
export CFLAGS="-mno-tls-direct-seg-refs"
export CXXFLAGS="-mno-tls-direct-seg-refs"
before installing REE.

4gb seg fixup REE XEN - Ruby Enterprise Edition | Google Groups

Do you think we could do the same for Zimbra? Anybody able to put together some instructions on how to do this? (this is beyond me)