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Date:      Mon, 15 Feb 1999 17:59:25 +0100
From:      "Jose M. Alcaide" <jose@we.lc.ehu.es>
To:        freebsd-stable@FreeBSD.ORG
Cc:        freebsd-current@FreeBSD.ORG
Subject:   easily reproducible NFS-related panic
Message-ID:  <36C8526D.9987934@we.lc.ehu.es>

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Sorry for the cross-posting, but I am running -STABLE and I would
like to hear from -CURRENT users about this problem.

The panic is easily reproducible: simply, try to hard-link a file
from a local filesystem to a NFS-mounted one (yes, I _know_ that
this is non-sense):

  mount remotesys:/exportedfs /mnt
  cd /mnt
  ln /bin/ls .   --> this complaints about cross-device link, OK
  ln /bin/ls .   --> (yes, again)
  panic: vrele: negative ref cnt     --> CRASH!!!

I have confirmed this with recent 3.0-STABLE and 3.1-BETA clients
and servers, and also with a Solaris 2.5.1 NFS server. However,
it does not happen on a 2.2.8-RELEASE client.

Some feedback from the NFS gurus ;-) would be very useful.

-- JMA
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José Mª Alcaide                         | mailto:jose@we.lc.ehu.es
Universidad del País Vasco              | mailto:jmas@es.FreeBSD.ORG
Dpto. de Electricidad y Electrónica     | http://www.we.lc.ehu.es/~jose
Facultad de Ciencias - Campus de Lejona | Tel.:  +34-946012479
48940 Lejona (Vizcaya) - SPAIN          | Fax:   +34-944858139
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