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Mention that 'options ALQ' is required when using KTR_ALQ.

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Approved by:	simon, trhodes, grehan (mentor)
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ssouhlal 2005-01-25 14:17:38 +00:00
parent cc56e6bcc5
commit 93011bae8e
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share/man/man4/ktr.4
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@ -32,6 +32,7 @@
.Nd kernel tracing facility
.Sh SYNOPSIS
.Cd options KTR
.Cd options ALQ
.Cd options KTR_ALQ
.Cd options KTR_COMPILE=(KTR_LOCK|KTR_INTR|KTR_PROC)
.Cd options KTR_CPUMASK=0x3
@ -145,6 +146,9 @@ option can be used to log
entries to disk for post analysis using the
.Xr ktrdump 8
utility.
This option depends on the
.Dv ALQ
option.
Due to the potentially high volume of trace messages the trace mask should be
selected carefully.
This feature is configured through a group of sysctls.
@ -187,6 +191,7 @@ records the number of entries that have currently been written to disk.
.El
.Sh SEE ALSO
.Xr ktrdump 8 ,
.Xr alq 9 ,
.Xr ktr 9
.Sh HISTORY
The KTR kernel tracing facility first appeared in