[5131] in Athena Bugs
vax 7.0F: NFS attach/kernel
daemon@ATHENA.MIT.EDU (cfields@ATHENA.MIT.EDU)
Sat Jun 9 22:59:21 1990
From: cfields@ATHENA.MIT.EDU
To: bugs@ATHENA.MIT.EDU
Date: Sat, 09 Jun 90 22:59:08 EDT
System name: fries
Type and version: CVAXSTAR 7.0F (1 update(s) to same version)
Display type: SM
What were you trying to do?
There is an NFS bug which sometimes causes there to appear to be a
null or two in your file when there really isn't; I was using the
detach hack that jik just told me about to straighten NFS out.
What's wrong:
The hack is to detach the filesystem while you are cd'd into it; since
it's busy, the detach will fail. But, while the detach fails, it does
purge your NFS mappings. Here is a sample:
fries 10:46pm 98> cat > dog
sdfkljdsk
fries 10:47pm 99> rm dog
fries 10:47pm 100> detach calendar
calendar: Unable to unmount /mit/calendar: Device busy
fries 10:47pm 101> cat > dog
dog: Permission denied
Apparently this is only for the VAX; I couldn't reproduce it on my RT.
What should have happened:
It should not purge your mappings when the detach fails.
