I have a SunOS 4.1.3_U1 box running diskless and mounting filesystems 
from a NetBSD/mac68k box (-current from several weeks ago but this 
problem isn't new).

 Executables seem to be getting randomly corrupted on the SunOS box, which 
causes them to either crash in odd places or to do weird things. Once it 
has occurred, the crash or the problem always appears at the same place, so 
it doesn't vary randomly. An interesting example of this is that I was 
compiling something with g++, when suddenly instead of ".align" it started 
outputting ".a'ign".

 Large executables seem more prone to corruption than small ones. Most 
cases have occurred with executables >1mb. I've never seen anything else 
than an executable (and once a shared library) become corrupted.

 Sometimes rebooting the SunOS box fixes things (as with the g++ case 
mentioned above), but sometimes reinstalling the executable is required. 
Occasionally the problem even disappears after a few minutes.

 The problem commonly appears after heavy nfs traffic. I can't think of 
another likely culprit for this kind of corruption (consistently at the 
same place).


--
'Good-bye and hello, as always'