Unaligned traps in Alpha RedHat 6.1

I recently installed Postgres in a 21164A Alpha system, running RedHat 6.1
(the installation was off the RPMs included with RedHat). While Postgres
runs correctly, it does not run as fast as I would expect it to on this
machine. Besides, every time a query is made, I get on my
/var/log/messages a couple of lines similar to this one:

May 10 15:08:59 tlamantli kernel: postmaster(1446): unaligned trap at 000000012013f2a0: 000000011fff9e55 28 1

From what I have read, this is more a warning than an error, explaining
that the program tried to access memory not aligned to the 64-bit
boundaries needed by the Alpha architecture - and thus slowing down
execution.

Is there something I can do about this?

Thank you.

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           Gunnar Wolf    gwolf@campus.iztacala.unam.mx
     Universidad Nacional Autónoma de México, Campus Iztacala
   Jefatura de Sección de Desarrollo y Admon. de Sistemas en Red
        Area de Seguridad en Computo - DCI - DGSCA - UNAM
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  Beginner thinks 1Kb == 1000 bytes.   Master knows 1Km == 1024m