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module(9), sysctl(7): Document kern.module.autounload_unsafe.

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riastradh 2022-08-12 15:43:38 +00:00
parent 4fd6c3fe81
commit 7ce51081c7
2 changed files with 18 additions and 6 deletions
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15
share/man/man7/sysctl.7
View File

@ -1,4 +1,4 @@
.\" $NetBSD: sysctl.7,v 1.158 2022/08/09 08:03:22 knakahara Exp $
.\" $NetBSD: sysctl.7,v 1.159 2022/08/12 15:43:38 riastradh Exp $
.\"
.\" Copyright (c) 1993
.\" The Regents of the University of California. All rights reserved.
@ -842,20 +842,27 @@ See
.It Li kern.module
Settings related to kernel modules.
The third level names for the settings are described below.
.Bl -column "kern.module.autoload" "integer" "Changeable" -offset indent
.Bl -column "kern.module.autounload_unsafe" "integer" "Changeable" -offset indent
.It Sy Third level name Ta Sy Type Ta Sy Changeable
.It kern.module.autoload integer yes
.It kern.module.autounload_unsafe integer yes
.It kern.module.autotime integer yes
.It kern.module.verbose boolean yes
.El
.Pp
The variables are as follows:
.Bl -tag -width "123456"
.Bl -tag -width 6n
.It Li kern.module.autoload
A boolean that controls whether kernel modules are loaded automatically.
See
.Xr module 7
for additional details.
for details.
.It Li kern.module.autounload_unsafe
A boolean that controls whether the kernel will autounload modules that
were automatically loaded and have not been audited for autounload.
.Pp
By default, only modules that have been audited will be autounloaded,
and only if they were autoloaded to begin with.
.It Li kern.module.autotime
An integer that controls the delay before an attempt is made to
automatically unload a module that was auto-loaded.

9
share/man/man9/module.9
View File

@ -1,4 +1,4 @@
.\" $NetBSD: module.9,v 1.53 2021/07/22 01:38:45 pgoyette Exp $
.\" $NetBSD: module.9,v 1.54 2022/08/12 15:43:38 riastradh Exp $
.\"
.\" Copyright (c) 2010 The NetBSD Foundation, Inc.
.\" All rights reserved.
@ -347,7 +347,7 @@ routine.
The module subsystem uses a kernel thread to attempt to automatically
unload modules a short time (currently, 10 seconds) after being loaded by
.Fn module_autoload .
Before the module is unloaded, its
Before the module is unloaded by this thread, its
.Fn modcmd
is called with the
.Fa cmd
@ -355,6 +355,11 @@ argument specified as
.Dv MODULE_CMD_AUTOUNLOAD .
A module can prevent itself from being unloaded by returning a non-zero
value.
Exception: If
.Li kern.module.autounload_unsafe
is set, a module that returns
.Er ENOTTY ,
meaning it does not understand the command, may still be autounloaded.
.Pp
The
.Fn module_autoload