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Add note about block device properties.

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From discussion with <riz>.
This commit is contained in:
pooka 2011-03-04 09:10:33 +00:00
parent 58ecd47e2f
commit 2c06d51fbf
1 changed files with 7 additions and 1 deletions
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8
usr.bin/rump_allserver/rump_allserver.1
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@ -1,4 +1,4 @@
.\" $NetBSD: rump_allserver.1,v 1.17 2011/02/23 19:59:18 pooka Exp $
.\" $NetBSD: rump_allserver.1,v 1.18 2011/03/04 09:10:33 pooka Exp $
.\"
.\" Copyright (c) 2010 Antti Kantee. All rights reserved.
.\"
@ -125,6 +125,12 @@ and
.Dq reg
for block device, character device and regular file, respectively.
The default is a block device.
.Pp
Note: the contents of block devices are cached in the rump kernel's
buffer cache.
To avoid cache incoherency, it is advisable not to access a file
through the host namespace while it is mapped as a block device in
a running rump kernel.
.El
.Pp
In case