[4596] in Athena Bugs

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x11r4 xmh fails hard when folders unavailable

daemon@ATHENA.MIT.EDU (geer@crl.dec.com)
Thu Mar 22 10:02:01 1990

Date: Thu, 22 Mar 90 09:59:44 EST
From: geer@crl.dec.com
To: bugs@crl.dec.com
Cc: bugs@ATHENA.MIT.EDU, swick@ATHENA.MIT.EDU

WHAT'S WRONG

	xmh (X11R4) fails catastrophically when it is unable to open
	a folder.

REPEAT BY

	% xmh &
	% cd ~/Mail
	% mv foo bar

	[within xmh, try to open the folder foo]

	xmh: Error in FOpenAndCheck(/udir/geer/Mail/foo/.xmhcache, r)
	errno = 2; No such file or directory
	exiting.
	[4]    Exit -1              xmh

DISCUSSION

	This is simply inappropriate if for no other reason that one
	of the most important features of xmh is the delayed commit
	of message handling operations such as ``rmm'' or ``refile''.
	A catastrophic failure will leave the user in a state of
	arbitrary lost-work-and-confusion.

	Although this was demonstrated with a folder rename, presumably
	fileservice environments can produce failure-to-open for their
	own reasons, that is to say reasons not so obviously dependent
	on the user's inadvertent self-victimization.

--dan


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