Date: Thu, 15 Oct 1998 14:16:39 -0400 (EDT) From: Ryan <ryan@ryan.org> To: FreeBSD-gnats-submit@FreeBSD.ORG Subject: docs/8337: documentation relic Message-ID: <199810151816.OAA17634@ryan.org>
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>Number: 8337
>Category: docs
>Synopsis: documentation relic
>Confidential: no
>Severity: non-critical
>Priority: low
>Responsible: freebsd-doc
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: doc-bug
>Submitter-Id: current-users
>Arrival-Date: Thu Oct 15 11:20:01 PDT 1998
>Last-Modified:
>Originator: Ryan
>Organization:
>Release: FreeBSD 2.2.7-STABLE i386
>Environment:
>Description:
rename(2) mentioned as a CAVEAT:
The system can deadlock if a loop in the file system graph is present.
This loop takes the form of an entry in directory `a', say `a/foo', being
a hard link to directory `b', and an entry in directory `b', say `b/bar',
being a hard link to directory `a'. When such a loop exists and two sepa-
rate processes attempt to perform `rename a/foo b/bar' and `rename b/bar
a/foo', respectively, the system may deadlock attempting to lock both di-
rectories for modification. Hard links to directories should be replaced
by symbolic links by the system administrator.
if I remember correctly, directory hard links were outlawed long ago.
>How-To-Repeat:
>Fix:
>Audit-Trail:
>Unformatted:
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