Dear all,

I am trying to understand some long standing issues we have with freebsd and Dell servers.

Over the last 3 year we have installed freebsd 5.x and 6.x, with currently deployed version being 6.1, to a variety of of Dell rack mounted systems.

The Dell systems used so far are Poweredge 1750, 2950 (both scsi), and sc1425 (sata). All of them are dual CPU Xeon systems.

All these systems serve as mail/web servers, with 2 to 15 jails.

Installation has always proceeded normally without problems. However, after a few months of operation, all of these systems, purchased at different moments during the last 3 years, will begin rebooting randomly or freezing completely.

These reboots/freezes will at first occur once per 6 months, then gradually will move to to once per month, to normally stabilize around once per week, but in the case of the 1750 system once it even happened twice a day.

Load does not seem to matter, since even after shutting down all services in the servers, still random reboots occured.

So far we tried various tricks digged from the archives, like disabling ACPI, HT, but nothing changed.

We have migrated some systems that had these issues to RHEL compatible OS, and they run rock solid under heavy load.

Right now I have enabled kernel crash dumps and I am waiting for the next crash. But I understad a lot of people use FreeBSD with Dell servers, and I would like to listen on how to tackle this situation we are facing.

        Best regards,


Dimitris Zilaskos

Department of Physics @ Aristotle University of Thessaloniki , Greece
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