I also looked it up and found this:
Under "Storage Allocator Errors"
memAdrErr: address was odd; or out of range
Do I have any better idea what this means than the other guy?………Hell no…maybe. It sounds disk-related for sure, so immediate thought is a drive issue-possibly about to fail or a really corrupted directory.
I do know this: In 25+ years, I've never once seen that error that I can remember, and I think if it had ever been that big a pain, I'd remember it.
So first: Verify backup is good and (preferably) replace drive. You should have a spare for this exact purpose…you're using "obsolete" hardware, remember.
If that works, cool. Don't believe everything you read from Windoze users.
If not, then: (See what I'm doing? If we could post graphics, this would be a tree, wouldn't it?)
I also know that: Just about every single time any of my Macs have started throwing un-explainable errors related in any way to memory, it's been a RAM issue - usually an intermittent RAM issue which, of course, makes it that much harder to pin down.
My SOP:
1) Clean & reseat RAM…if no joy, goto 2
2) Run MEMTEST…Result BAD, goto 3…Result GOOD, goto 4
3) Replace bad RAM with known-to-be-good RAM
4) Replace all RAM with known-to-be-good RAM OR go back to 2 as long as you can stand it until you get new RAM
If all of that doesn't work, you're probably in motherboard territory.