Module Name: src
Committed By: msaitoh
Date: Wed May 15 05:47:10 UTC 2013
Modified Files:
src/share/man/man4: options.4
Log Message:
- Add KERNHIST and KERNHIST_PRINT.
- Update UVMHIST and UVMHIST_PRINT.
To generate a diff of this commit:
cvs rdiff -u -r1.420 -r1.421 src/share/man/man4/options.4
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/share/man/man4/options.4
diff -u src/share/man/man4/options.4:1.420 src/share/man/man4/options.4:1.421
--- src/share/man/man4/options.4:1.420 Wed May 15 05:30:33 2013
+++ src/share/man/man4/options.4 Wed May 15 05:47:10 2013
@@ -1,4 +1,4 @@
-.\" $NetBSD: options.4,v 1.420 2013/05/15 05:30:33 msaitoh Exp $
+.\" $NetBSD: options.4,v 1.421 2013/05/15 05:47:10 msaitoh Exp $
.\"
.\" Copyright (c) 1996
.\" Perry E. Metzger. All rights reserved.
@@ -641,17 +641,31 @@ problems.
.It Cd options MALLOCLOGSIZE=integer
Defines the number of entries in the malloc log.
Default is 100000 entries.
+.It Cd options KERNHIST
+Enables the kernel history logs, which create in-memory traces of
+various kernel activities.
+These logs can be displayed by using
+.Cm show kernhist
+from DDB.
+See the kernel source file sys/kern/kern_history.c for details.
+.It Cd options KERNHIST_PRINT
+Prints the kernel history logs on the system console as entries are added.
+Note that the output is
+.Em extremely
+voluminous, so this option is really only useful for debugging
+the very earliest parts of kernel initialization.
.It Cd options UVMHIST
-Enables the UVM history logs, which create in-memory traces of
-various UVM activities.
-These logs can be displayed by calling
-.Fn uvmhist_dump
-or
-.Fn uvm_hist
-with appropriate arguments from DDB.
+Like
+.Em KERNHIST ,
+it enables the UVM history logs.
+These logs can be displayed by using
+.Cm show kernhist
+from DDB.
See the kernel source file sys/uvm/uvm_stat.c for details.
.It Cd options UVMHIST_PRINT
-Prints the UVM history logs on the system console as entries are added.
+Like
+.Em UVMHIST ,
+it prints the UVM history logs on the system console as entries are added.
Note that the output is
.Em extremely
voluminous, so this option is really only useful for debugging
