amd64/74811: df, nfs mount, negative Avail -> 32/64-bit confusion

[Palle Girgensohn]

>Number:         74811
>Category:       amd64
>Synopsis:       df, nfs mount, negative Avail -> 32/64-bit confusion
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-amd64
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Tue Dec 07 12:00:54 GMT 2004
>Closed-Date:
>Last-Modified:
>Originator:     Palle Girgensohn
>Release:        FreeBSD 5.3-RELEASE amd64
>Organization:
>Environment:
System: FreeBSD rambutan.pingpong.net 4.10-RELEASE FreeBSD 4.10-RELEASE #2: Mon Jun 21 17:45:46 CEST 2004 girgen at banan.pingpong.net:/usr/obj/usr/src/sys/WORKSTATION i386


	
>Description:

using FreeBSD 5.3 amd64 as nfs client
      FreeBSD 4.10 i386 as nfs server

when a disk is filled up over 100%, Avail becomes negative on the
server, but hugely postive on the 64-bit platform. Not very
surprising, but still a bug... :)

4.10 i386 server:
Filesystem         1K-blocks     Used   Avail Capacity  Mounted on
/dev/da6s1f         17388202 16153532 -156386   101%    /dumps/0

5.3  amd64 client:
Filesystem                    1K-blocks     Used             Avail Capacity  Mounted on
banan:/dumps/0                 17388202 16153532 18014398509325598     0%    /mnt


	
>How-To-Repeat:
1. fill up a volume on FreeBSD 4.10 i386 to 101%
2. nfs mount this system on a FreeBSD 5.3 amd64 system
3. df on the 5.3 amd64 system reveals LOTS of space on the volume. :)

	
>Fix:

	


>Release-Note:
>Audit-Trail:
>Unformatted: