[3924] in Athena Bugs

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rt 6.4R: attach

daemon@ATHENA.MIT.EDU (Jonathan I. Kamens)
Mon Jan 8 23:17:06 1990

Date: Mon, 8 Jan 90 23:16:42 -0500
From: Jonathan I. Kamens <jik@PIT-MANAGER.MIT.EDU>
To: bugs@ATHENA.MIT.EDU
System name:		pit-manager
Type and version:	RTPC-ROMPC 6.4R
Display type:		apa16
			megapel

What were you trying to do?
	Attach sipb on top of sipb-rw (a filesystem local to my
	workstation which attaches the read-write sipb filesystem on
	/mit/sipb).  I shouldn't be able to do this, but I can.  I
	already reported this bug once, and I thought it had been
	fixed.

What's wrong:
	pit-manager% attach sipb-rw
	sipb-rw: AFS mounted /afs/.athena.mit.edu/contrib/sipb on /mit/sipb (read-write)
	pit-manager% attach sipb
	sipb: AFS mounted /afs/athena.mit.edu/contrib/sipb on /mit/sipb (read-only)
	
What should have happened:
	I should NOT have been able to perform the second attach.

Please describe any relevant documentation references:
	When I try to detach both, I get this, as expected:

	pit-manager% detach sipb sipb-rw
	sipb: detached
	sipb-rw: already detached, continuing....
	sipb-rw: detached

  This is a MAJOR bug.  It really has to be fixed before the release.
A few more notes:

pit-manager% cmp /bin/athena/attach /srvd/bin/athena/attach
pit-manager% ls -l /srvd/bin/athena/attach
-rwsr-xr-x  1 root       165888 Dec 11 12:37 /srvd/bin/athena/attach*

  jik

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