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authorPoul-Henning Kamp <phk@FreeBSD.org>2004-01-02 14:28:06 +0000
committerPoul-Henning Kamp <phk@FreeBSD.org>2004-01-02 14:28:06 +0000
commitb4bca2d5ec08a70ae9ce5b721774412af991f9ec (patch)
treed5ddbe4658cc42425f69349f8f04deba18b82444 /sbin/mdconfig/mdconfig.8
parent6b11e29d1ee52b8e8c4ae751adfd2960239bc130 (diff)
downloadsrc-b4bca2d5ec08a70ae9ce5b721774412af991f9ec.tar.gz
src-b4bca2d5ec08a70ae9ce5b721774412af991f9ec.zip
Warn that big malloc disks are a panic(8) implementation.
Submitted by: Colin Percival <cperciva@builder.daemonology.net> (Who should really get his own bit one of these days!) PR: 59988
Notes
Notes: svn path=/head/; revision=124075
Diffstat (limited to 'sbin/mdconfig/mdconfig.8')
-rw-r--r--sbin/mdconfig/mdconfig.85
1 files changed, 5 insertions, 0 deletions
diff --git a/sbin/mdconfig/mdconfig.8 b/sbin/mdconfig/mdconfig.8
index 4c4b3066929d..1988b3e31710 100644
--- a/sbin/mdconfig/mdconfig.8
+++ b/sbin/mdconfig/mdconfig.8
@@ -91,6 +91,11 @@ Select the type of the memory disk.
Storage for this type of memory disk is allocated with
.Xr malloc 9 .
This limits the size to the malloc bucket limit in the kernel.
+If the
+.Fl o Cm reserve
+option is not set, creating and filling a large
+malloc-backed memory disk is a very easy way to
+panic a system.
.It Cm vnode
A file specified with
.Fl f Ar file