From be2b6e62ad5c71c969dcd35275ec0209d3d810de Mon Sep 17 00:00:00 2001 From: rpaulo Date: Mon, 13 Sep 2010 17:49:39 +0000 Subject: 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 --- UPDATING | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'UPDATING') diff --git a/UPDATING b/UPDATING index 22fd3c6..f4a8fed 100644 --- a/UPDATING +++ b/UPDATING @@ -22,6 +22,16 @@ NOTE TO PEOPLE WHO THINK THAT FreeBSD 9.x IS SLOW: 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. -- cgit v1.1