amd64/73322: unarchiving /etc to msdos fs locks up amd64 system

[Sean McNeil]

>Number:         73322
>Category:       amd64
>Synopsis:       unarchiving /etc to msdos fs locks up amd64 system
>Confidential:   no
>Severity:       serious
>Priority:       low
>Responsible:    freebsd-amd64
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sat Oct 30 19:30:18 GMT 2004
>Closed-Date:
>Last-Modified:
>Originator:     Sean McNeil
>Release:        6.0-CURRENT
>Organization:
Sean McNeil Consulting
>Environment:
FreeBSD server.mcneil.com 6.0-CURRENT FreeBSD 6.0-CURRENT #46: Fri Oct 29 14:37:40 PDT 2004     root at server.mcneil.com:/usr/obj/usr/src/sys/AMD64  amd64

>Description:
Certain functionality appears to be broken with the msdos filesystem.  With a usb pen drive (either uhci or ehci) I can read and write files but if I attempt to unarchive /etc it will cause my system to lock up without a trace or going to debug.

This could be an issue with USB.  I do not have another type of device with an msdos filesystem to verify.
>How-To-Repeat:
/etc/malloc.conf is a symlink to "aj"

mount an msdos filesystem to /mnt
cd /
tar cf - etc | (cd /mnt; tar xvf -)

system locks up on me every time.

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