Bug 4491 - combination of null-FS , NFS and chroot crash the system
Summary: combination of null-FS , NFS and chroot crash the system
Status: Closed FIXED
Alias: None
Product: Base System
Classification: Unclassified
Component: bin (show other bugs)
Version: 2.2.1-RELEASE
Hardware: Any Any
: Normal Affects Only Me
Assignee: freebsd-bugs (Nobody)
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 1997-09-08 03:00 UTC by Mikhail Teterin
Modified: 1998-04-19 21:01 UTC (History)
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Description Mikhail Teterin 1997-09-08 03:00:01 UTC 
	null-FS is mounted over the subdirectory of NFS mount point

Fix: 

I wish I knew
How-To-Repeat: 
On BigMachine as root:
	mkdir /SmallMachine
	mount -t nfs SmallMachine:/ /SmallMachine
	mount -t nfs SmallMachine:/usr /SmallMachine/usr
	# SmallMachine does not have anything in it's /usr/local
	mount -t null /usr/local /SmallMachine/usr/local
	chroot /SmallMachine tcsh
		!!! BigMachine reboots !!!
Comment 1 Poul-Henning Kamp freebsd_committer freebsd_triage 1998-04-19 21:00:33 UTC 
State Changed
From-To: open->closed

See PR5355