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- Sync with -HEAD

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Approved by: trhodes (mentor), keramida (mentor)
This commit is contained in:
danger 2007-01-01 21:26:32 +00:00
parent 4713a8c0b0
commit 8b577d2188
1 changed files with 13 additions and 1 deletions
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14
share/man/man9/ktr.9
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@ -24,7 +24,7 @@
.\"
.\" $FreeBSD$
.\"
.Dd February 15, 2001
.Dd December 27, 2005
.Dt KTR 9
.Os
.Sh NAME
@ -51,6 +51,8 @@
.Fn CTR4 "u_int mask" "char *format" "arg1" "arg2" "arg3" "arg4"
.Ft void
.Fn CTR5 "u_int mask" "char *format" "arg1" "arg2" "arg3" "arg4" "arg5"
.Ft void
.Fn CTR6 "u_int mask" "char *format" "arg1" "arg2" "arg3" "arg4" "arg5" "arg6"
.Sh DESCRIPTION
KTR provides a circular buffer of events that can be logged in a
.Xr printf 9
@ -143,3 +145,13 @@ It might be profitable at some point in time to use per-CPU buffers instead
so that if one CPU halts or starts spinning, then the log messages it
emitted just prior to halting or spinning will not be drowned out by events
from the other CPUs.
.Pp
The arguments given in
.Fn CTRx
macros are stored as
.Vt u_long ,
so do not pass arguments larger than size of an
.Vt u_long
type.
For example passing 64bit arguments on 32bit architectures will give incorrect
results.