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Date: Mon, 30 Dec 1996 08:00:02 -0800 (PST)
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From: J Wunsch <j@uriah.heep.sax.de>
Subject: Re: bin/2315: tail segfaults on NFS permission denied
Reply-To: J Wunsch <j@uriah.heep.sax.de>
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The following reply was made to PR bin/2315; it has been noted by GNATS.

From: J Wunsch <j@uriah.heep.sax.de>
To: hhui@arcfour.com
Cc: FreeBSD-gnats-submit@FreeBSD.org
Subject: Re: bin/2315: tail segfaults on NFS permission denied
Date: Mon, 30 Dec 1996 16:50:53 +0100 (MET)

 As Hui-Hui Hu wrote:
 
 > client# mount -t nfs -o nosuid server:/foo /foo
 > client# tail /foo/filename
 > Segmentation fault
 
 What's up with your environment?  
 
 uriah # mount localhost:/tmp /mnt
 uriah # umount /mnt
 uriah # mount -o nosuid localhost:/tmp /mnt
 uriah # tail /mnt/makefile
 SYSTEM := $(shell uname -s)
 
 all:
         echo $(SYSTEM)
 uriah # umount /mnt
 
 > /kernel: vnode_pager_getpages: I/O read error
 > /kernel: vm_fault: pager input (probably hardware) error, PID 15308 failure
 > /kernel: pid 15308 (tail), uid 0: exited on signal 11
 
 That seems to be the culprit.  Is your filesystem the `tail' came from
 also NFS?
 
 -- 
 cheers, J"org
 
 joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE
 Never trust an operating system you don't have sources for. ;-)