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Document the 'show bio' command added in 2009.

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While here also reword 'show buffer' to have an 'addr' argument and to
match other struct documentation.

MFC after:	1 week
Sponsored by:	EMC / Isilon Storage Division
This commit is contained in:
bdrewery 2014-07-15 21:13:08 +00:00
parent 1fb217334d
commit d543f02759
1 changed files with 17 additions and 10 deletions
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27
share/man/man4/ddb.4
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@ -60,7 +60,7 @@
.\"
.\" $FreeBSD$
.\"
.Dd September 30, 2013
.Dd July 15, 2014
.Dt DDB 4
.Os
.Sh NAME
@ -572,17 +572,24 @@ Dump data about APIC IDT vector mappings.
Show breakpoints set with the "break" command.
.\"
.Pp
.It Ic show Cm buffer
Show buffer structure of
.It Ic show Cm bio Ar addr
Show information about the bio structure
.Vt struct bio
present at
.Ar addr .
See the
.Pa sys/bio.h
header file for more details on the exact meaning of the structure fields.
.\"
.Pp
.It Ic show Cm buffer Ar addr
Show information about the buf structure
.Vt struct buf
type.
Such a structure is used within the
.Fx
kernel for the I/O subsystem
implementation.
For an exact interpretation of the output, please see the
present at
.Ar addr .
See the
.Pa sys/buf.h
header file.
header file for more details on the exact meaning of the structure fields.
.\"
.Pp
.It Ic show Cm cbstat