Here is what I've found:
1) The error is repeatable.
I used UKA17X2.EXE to produce this error over and over again.
UKA17X2 creates ~300 files. Other pgms that create a lot of
files could probably be used just as well.
Here is the sequence that I used to reproduce the error:
a) Copy UKA17X2.EXE to the root directory of C:
b) create a new subdir in c:\
c) cd to that new subdir
d) execute "\UKA17X2"
The "corrupted" directory sector appears in either the new subdir
or in NOS\HELP under it.
One other curious thing: If you move UKA17X2.EXE into the new subdir
and then execute it without the leading "\", i.e. "UKA17X2",
the corruption does *not* occur. I don't know why.
2) Disabling SMARTDRV's write caching *prevents* the corruption
from occurring.
The downside of this (i.e. disabling write caching) is that UKA17X2
takes ~3 times longer to run without write caching enabled.
3) The directory "corruption" may *not* be related to LFNs.
a) The LFNs that I saw in previous "corrupted" directory sectors
were probably already in those sectors
b) I've also seen source code snippets, sections of doc files,
and other inappropriate data in "corrupted" directory sectors.
c) Sometimes one or more *correct* directory entries are scattered
within all the garbage in a "corrupted" directory sector.
d) BTW I have yet to see a corrupted sector that was the also the
first sector in a cluster. But that might just be the result of
randomness.
4) Per Eric's request I tried substituting NWCACHE for SMARTDRV. I
used DELAY=667 as the only operand. The results were:
a) no corruption
b) run time was very close to SMARTDRV (with its write caching on)
HTH
-Eddie
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