crash on writing usbstick

[Brett Wynkoop]

Greeting-

I just had a thought, while trying to crash my BBone again.  Back when
I started with BSD on PDP-11/70 we had to order special disk packs for
BSD that were certified error free because Unix in those days had no
way to map out bad blocks and could crash on hitting bad blocks.

When we moved to using BSD on Pyramid and Sun boxes there were
utilities to map out bad blocks.  I do not remember what it was under
OS/X, but on Sun OS 3.x and on it is of course part of the format
command.  As I recall we used to have utilities for bad block mapping
in FreeBSD back in the 2.x and 3.x days.  Sometime around the 4.x or
5.x days drive makers started to do bad block mapping with the firmware
on the drives. 

Could it be that the whole issue here is that I am running into disk
faults on the flash disks and the flash drives have no way to map the
blocks out such as modern rotating drives do with SMART and such?

I have done a bit of man -k searching but I have not found anything for
mapping out bad blocks in 11-current. 

At the moment I am just over 1/2 way in copying /usr/ports
to /export/ports with no crash yet but a bunch of 

aintc0: Spurious interrupt detected (0xffffffff)
aintc0: Spurious interrupt detected (0xffffffff)
aintc0: Spurious interrupt detected (0xffffffff)

messages on the console.

-Brett

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