bin/77260: df behaviour has changed between 4.x and 5.x

[Kris Kennaway]

The following reply was made to PR bin/77260; it has been noted by GNATS.

From: Kris Kennaway <kris at obsecurity.org>
To: Jamie Heckford <jamie at tridentmicrosystems.co.uk>
Cc: FreeBSD-gnats-submit at FreeBSD.org
Subject: Re: bin/77260: df behaviour has changed between 4.x and 5.x
Date: Tue, 8 Feb 2005 20:21:22 -0800

 On Tue, Feb 08, 2005 at 11:58:46AM +0000, Jamie Heckford wrote:
 
 > * 4.x *
 > =======
 > 
 > admin at cobain:~> uname -v
 > FreeBSD 4.9-RELEASE #1: Thu Apr 15 10:00:08 GMT 2004     admin at cobain.trident-uk.co.uk:/usr/src/sys/compile/COBAIN 
 > 
 > admin at morrison:~> df
 > Filesystem  1K-blocks      Used     Avail Capacity  Mounted on
 > /dev/da0s1a    604718     50564    505778     9%    /
 > /dev/da0s1e    100750       202     92488     0%    /tmp
 > /dev/da0s1g  10050414   1699344   7547038    18%    /usr
 > /dev/da0s1f   6193438   1458468   4239496    26%    /var
 > procfs              4         4         0   100%    /proc
 > lennon:/u   538172626 215128824 279989992    43%    /u       <===== NFS SHOWN
 > 
 > 
 > * 5.x *
 > =======
 > 
 > admin at lennon:~> uname -v
 > FreeBSD 5.3-RELEASE #0: Sun Dec 12 13:42:02 GMT 2004     root at lennon.trident-uk.co.uk:/usr/obj/usr/src/sys/LENNON 
 > 
 > admin at lennon:~> df
 > Filesystem  1K-blocks      Used     Avail Capacity  Mounted on
 > /dev/da0s1a   1012974     52206    879732     6%    /
 > devfs               1         1         0   100%    /dev
 > /dev/da0s1e   1012974         6    931932     0%    /tmp
 > /dev/da0s1g 538172626 215265926 279852890    43%    /u
 > /dev/da0s1f  10154158   1556208   7785618    17%    /usr
 > /dev/da0s1d   4058062     22098   3711320     1%    /var
 > 
 > admin at lennon:~> df -t nfs
 > df: /backup stats possibly stale
 
   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 This indicates that the statfs call failed, e.g. you don't have read
 access to the filesystem mount, or there's some other error condition.
 
 Certainly I see nfs filesystem mounts from plain 'df' on 5.x and 6.x.
 
 > Filesystem    1K-blocks      Used    Avail Capacity  Mounted on
 > data1:/backup 229592288 160110224 69252472    70%    /backup
 
 Kris