October 20, 2009 posted by David Maxwell
This is the summary of the "Improve and Extend resize_ffs" Summer of Code 2009 project.
October 15, 2009 posted by Phil Nelson
This is the summary of Maxwell Winderbaum's "PXE Bulk Install" Summer of Code 2009 project.
October 15, 2009 posted by David Young
Here is my summary of project goals and results for Lloyd Parkes' Summer
of Code project, Miniaturize NetBSD.
Lloyd's project was concerned with helping developers to build small,
bootable NetBSD system images by extending NetBSD's cross-compilation
toolset and adding new kernel facilities.
October 11, 2009 posted by Greg Oster
The work to improve the parity handling in RAIDframe was done by Jed
Davis as a 2009 Google Summer of Code project in NetBSD. The
mentoring on this project was done by Greg Oster. This document
summarizes the project and the results.
RAIDframe (the software RAID implementation in NetBSD) suffers from
long parity checking/rebuilding times in the event of an unclean
shutdown. The goal of this project was to implement a solution that
greatly reduces the amount of time required to ensure that the parity
is correct after an unclean shutdown.
The main project goals were met. Jed's solution to the parity
rebuilding problem is based on a "parity map". In this solution, the
RAID set is divided into some number of "zones", where the parity
status of each zone is reflected in the parity map. So while the
existing RAIDframe code can be though of as having just a single zone
(i.e. the entire RAID set) the new parity map code uses simple
heuristics (e.g. minimum zone size of 25MiB per component, maximum of
4096 zones) to determine the number of zones and the size of the
Part of the work involved exploring various zone sizes and
investigating the performance implications of not only the zone sizes
but the frequency of updating the parity map as well. There were also
data consistency (e.g. order of write operations) and update issues
(e.g. drive cache flushing) to deal with.
The code has yet to be merged into the main NetBSD tree, pending
additional testing and verification of the code involved.
October 08, 2009 posted by S.P.Zeidler
ISC has informed us of network maintenance to happen between 14:00 and 15:00 UTC today (Oct 8th).
This concerns most public services directly under NetBSD.org (including this blog).
Expected outage duration is 20 minutes. Please stay calm :)
September 24, 2009 posted by S.P.Zeidler
Around 00:00 UTC on 2009-09-25, nyftp.netbsd.org will be offline for an
unknown interval of time due to the emergency replacement of a chiller
and other air conditioning equipment at the location where it is hosted.
The current expected date for the return of services is ~2009-09-28.
September 24, 2009 posted by S.P.Zeidler
blog.NetBSD.org was not very available between ~13:00 and ~20:00 UTC today.
One of its disks semi-failed and led to really exhaustive retries that left the httpds so exhausted they timed nearly everybody out instead. The faulty disk has been taken offline, and lo, we have a blog again.
September 23, 2009 posted by Jared D. McNeill
For a second consecutive year I mentored Jeremy Morse for NetBSD's Google Summer of Code project entitled Display Control and Acceleration.
This post will review the goals of the project and present the results.
September 21, 2009 posted by Antti Kantee
This year I mentored Arnaud Ysmal's Summer
of Code project entitled "Generic file system mounting".
This post contains a recap of the goals and presents the
September 18, 2009 posted by Emile Heitor
Our fourth edition of the "discussions with a NetBSD developer" series is a very special one, as we had the chance to talk to Alistair G. Crooks, president of The NetBSD Foundation.
Alistair gave us a historical point of view some of you might be unaware of, explaining "The NetBSD way" while telling us what is his analysis of NetBSD's status today and what he thinks about its future. A must read.
August 29, 2009 posted by Sarah Cockburn
On 31 August 2009 our very own David Maxwell is taking part in the Free and Open Source Software Learning Centre's debate 'Which open source license is best?'. Obviously, David is advocating for the BSD License. His opponents are Mike Milinkovich (for EPL License) and Matt Asay (for GPL License).
FOSSLC are allowing the public to participate in the event by either posing their own questions or voting on those already listed. For more information see http://moderator.appspot.com/#15/e=9faeb&t=94b79.
You can show your support by registering to either attend on the day or view the webcast stream.
For more information see the FOSSLC website.
Good luck David!
August 21, 2009 posted by Marc Balmer
Recently, generic support for electro-mechanical multi-position keylocks in the kernel has been added to NetBSD. Such locks can be turned into various positions, usually up to three or four position. They come with a set of keys that are different in so far as not all positions can be reached will all keys (which key can go up to which position is called the "locking program"). With the new keylock support, such locks can be used to tinker with the kernel security, much like the traditional securelevel variable...