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Date: Wed, 26 Nov 1997 00:23:01 -0800 (PST)
From: vova@plugcom.ru
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Subject: bin/5154: NULL_FS crash system with large traffic 
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>Number:         5154
>Category:       bin
>Synopsis:       NULL_FS crash system with large traffic
>Confidential:   no
>Severity:       critical
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Wed Nov 26 00:30:01 PST 1997
>Last-Modified:
>Originator:     Vladimir B. Grebenschikov
>Organization:
Plug Communications LTD
>Release:        2.2-SNAP-110597
>Environment:
FreeBSD radiance.plugcom.ru 2.2-110597 FreeBSD 2.2-110597 #0: Tue Nov 18 19:41:05 MSK 1997     vova@radiance.plugcom.ru:/usr/src/sys/compile/Radiance  i386

>Description:
mount -t null /mnt/myarchives ~ftp/pub

ftp localhost
user: ftp
password: 
ftp> get largefile.zip

... crash ...

When I place public ftp home on null-fs mounted partition, 
any transfer about 500 kb crash system with panic

But small tranfers work correct

>How-To-Repeat:
mount any directrory as ~ftp, and download or upload large file (more
500kb) over ftp	
>Fix:

>Audit-Trail:
>Unformatted: