Author: rpaulo
Date: Mon Sep 13 17:49:39 2010
New Revision: 212567
URL: http://svn.freebsd.org/changeset/base/212567
Log:
Add a note about userland DTracing.
Sponsored by: The FreeBSD Foundation
> Description of fields to fill in above: 76 columns --|
> PR: If a GNATS PR is affected by the change.
> Submitted by: If someone else sent in the change.
> Reviewed by: If someone else reviewed your modification.
> Approved by: If you needed approval for this commit.
> Obtained from: If the change is from a third party.
> MFC after: N [day[s]|week[s]|month[s]]. Request a reminder email.
> Security: Vulnerability reference (one per line) or description.
> Empty fields above will be automatically removed.
M UPDATING
Modified:
head/UPDATING
Modified: head/UPDATING
==============================================================================
--- head/UPDATING Mon Sep 13 17:30:29 2010 (r212566)
+++ head/UPDATING Mon Sep 13 17:49:39 2010 (r212567)
@@ -22,6 +22,16 @@ NOTE TO PEOPLE WHO THINK THAT FreeBSD 9.
machines to maximize performance. (To disable malloc debugging, run
ln -s aj /etc/malloc.conf.)
+20100913:
+ DTrace has grown support for userland tracing. Due to this, DTrace is
+ now i386 and amd64 only.
+ dtruss(1) is now installed by default on those systems and a new
+ kernel module is needed for userland tracing: fasttrap.
+ No changes to your kernel config file are necessary to enable
+ userland tracing, but you might consider adding 'STRIP=' and
+ 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want
+ to have informative userland stack traces in DTrace (ustack).
+
20100725:
The acpi_aiboost(4) driver has been removed in favor of the new
aibs(4) driver. You should update your kernel configuration file.
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