I didn't mean to bust you, I just wanted to be sure that I understood the problem. And yes, you have busted me, too. I admit it. Perderabo is not really my name.
Seriously, the reason that I use a pseudonym is so I can remain anonymous. For some reason I find that to be unspeakably cool. I picked my name from the world of horror fiction. It was supposed to be so very obscure as to be unique. Unforutately several dozen other folks had the same idea... I occasionally use a printer, but I'm not well-known in the world of printers. Must be one of those fake Perderabo's running around.
*sigh* I guess that I'll just have to think of them as assistants helping to preserve my anonymity.
I have worked with HP equipment for a very long time. Yes, the software and service sucks. I give thanks for that every day. Very few people can handle any HP software issue. Life is very sweet when you're one of them.
The PA-risc chip does not support address aliasing. A physical address can have only one virtual address. That's why a shared memory segment must be installed at the same virtual address for each process that uses it. If the physical address is the same as the virtual address, that is called equivalent mapping. Some drivers need to use equivalently mapped pages. Often the OS can find one just laying around. If it can't, it must dip into it's reserved pool of equivalently mapped pages. If they are all in use, the I/O must wait until one becomes available. The size of the reserve pool is eqmemsize. Each time that you see that message, I/O was deferred. If it only happened once, it's not a big deal. If it happens a lot, you want to increase eqmemsize. Proceed very slowly. Go from 15 to 20 and see how performance seems. Remember that you are dedicating physical memory to a specific purpose. I just looked at a bunch of HP systems... 27 is the largest value that I found.