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Sun Workstation Problem !!

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by sachinshenoy

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I have a SunSPARC Ultra 5 with Solaris 2.6. When I boot I am getting a "Memmory Address not Aligned" error or a "Fast Data Access MMU Miss" error.... What do I do to solve this ???? My OBP Ver is 3.19.4.....

5 replies

by insatiable

Is this a system you just put together?
Check to see if you have a scsi (or non-scsi) device attached that isn't terminated.

Do you have all the patches installed for 2.6?

Sometimes you can get that error if you're trying to boot from a device that isn't available. So, if you're booting from disk 2, make sure that disk 2 is plugged in well, or try booting from cdrom, or another disk to see if you can isolate it to the disk.

Good luck!!!
Melissa

by sachinshenoy

I have discovered that the Problem was due to a faulty Hard disk drive. Once the disk was replaced the problem got solved.

by cpfeiffe

Funny you ask this, I just had this problem two days ago. This appears to be a memory error, but can be a CPU error. If the CPU isn't seated firmly (can come lose rather easily in an Ultra 5 that is moved around and upside down a lot - you'll see what I mean if you open it up) this error can occur. Also - if you just did a CPU or memory upgrade you may have CPU or memory that is not compatible with your board. That was my problem. I upgraded to a 400 MHz processor and my board was only equipped for 333 MHZ or less. It booted fine the first time and then started acting wierd.

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