Kernel modules for macppc and shark


January 19, 2010 posted by Julio Merino

As of past night, the macppc and shark ports have support for the new-style kernel modules. I've added support for these through a workaround in the build system, which makes the compiler generate long jumps for all calls in the code, avoiding unsupported ELF relocation types. This allows us to use the modules even if the kernel-level loader is not able to deal with such relocations. The kernel-level support is now enabled by default in macppc and shark GENERIC kernels.

We'll need to revisit this in the future and implement real support for dealing with those relocation types. Why? The modules built with this flag are slower than they should be... but at least they do work.

[0 comments]

 

Hardware accelerated Xorg on Shark is back


November 25, 2009 posted by Michael Lorenz

Hardware accelerated X for Rev. 4 Sharks using the xf86-video-chips driver has been around for a while but Rev. 5 Sharks were stuck with a dumb framebuffer driver. This has changed, a few days ago I committed an Xorg driver for the IGS CyberPro 2010 graphics controller found in Rev. 5 Sharks.
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Interview with Christos Zoulas


November 22, 2009 posted by Sarah Cockburn

In September this year, Guillaume Lasmayous spent 5 weeks in the US where he took the opportunity to meet with some developers from the NetBSD project. On a Saturday afternoon Guillaume met Christos Zoulas to answer a few questions about NetBSD.

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OpenGrok for NetBSD


November 03, 2009 posted by Zafer Aydoğan

The opengrok code search and cross reference service has been set up and is available at:

http://opengrok.netbsd.org

It contains the NetBSD sources which are updated every three hours.
This service is running on NetBSD-5 using opengrok with openjdk from pkgsrc.

Happy Grokking :)

[2 comments]

 

BSD Magazine: NetBSD sshfs


October 26, 2009 posted by Antti Kantee

In BSD Magazine issue 4/2009 I write about out-of-the-box support for sshfs on NetBSD 5.0. The article goes over the basic principles, use, tuning, and features in store beyond NetBSD 5.0. See the magazine website for purchase/subscription instructions.

[0 comments]

 

Summer of Code Results: Improve and Extend resize_ffs


October 20, 2009 posted by David Maxwell

This is the summary of the "Improve and Extend resize_ffs" Summer of Code 2009 project.

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Summer of Code results: PXE Bulk Install


October 15, 2009 posted by Phil Nelson

This is the summary of Maxwell Winderbaum's "PXE Bulk Install" Summer of Code 2009 project.

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Summer of Code results: Miniaturize NetBSD


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.

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Summer of Code results: Improving RAIDframe parity handling


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.

Goals

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.

Results

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 zones.

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.

[1 comment]

 

network maintenance planned at ISC Oct 8th 14:00-15:00 UTC


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 :)

[0 comments]

 

NYftp.NetBSD.org will take a vacation from 2009-09-25 around 00:00 UTC


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. [0 comments]

 

Outage of blog.NetBSD.org today


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. [0 comments]