March 31, 2014 posted by Martin Husemann
After not having a usable compiler for a few years, the playstation2 port is returning, now that gcc 4.9 (gcc-current in NetBSD terms) re-acquired support for the R5900 CPU[Read More
March 06, 2014 posted by Martin Husemann
NetBSD starts deploying gcc 4.8[Read More
January 27, 2014 posted by Manuel Bouyer
The NetBSD Project is pleased to announce:
- NetBSD 6.1.3, the third security/bugfix update of the NetBSD 6.1 release
- NetBSD 6.0.4, the fourth security/bugfix update of the NetBSD 6.0 release
- NetBSD 5.2.2, the second security/bugfix update of the NetBSD 5.2 release
- and NetBSD 5.1.4, the fourth security/bugfix update of the NetBSD 5.1 release
December 17, 2013 posted by Matthew Sporleder
New interview with schmonz
December 17, 2013 posted by Antti Kantee
A cyclic trend in operating systems is moving things in and out of the
kernel for better performance. Currently, the pendulum is swinging
in the direction of userspace being the locus of high performance.
architecture of NetBSD ensures that the same kernel drivers work in a
monolithic kernel, userspace and beyond. One of those driver stacks is
networking. In this article we assume that
the NetBSD networking stack is run outside of the monolithic kernel in
a rump kernel and survey
the open source interface layer options.
November 16, 2013 posted by Benny Siegert
FOSDEM 2014 will take place on 1–2 February, 2014, in Brussels,
Belgium. Just like in the last years, there will be both a BSD booth
and a developer's room (on Saturday).
The topics of the devroom include all BSD operating systems. Every
talk is welcome, from internal hacker discussion to real-world
examples and presentations about new and shiny features. The default
duration for talks will be 45 minutes including discussion. Feel free
to ask if you want to have a longer or a shorter slot.
If you already submitted a talk last time, please note that the
procedure is slightly different.
To submit your proposal, visit
and follow the instructions to create an account and an “event”.
Please select “BSD devroom” as the track. (Click on “Show all” in
the top right corner to display the full form.)
Please include the following information in your submission:
- The title and subtitle of your talk (please be descriptive,
as titles will be listed with ~500 from other projects)
- A short abstract of one paragraph
- A longer description if you wish to do so
- Links to related websites/blogs etc.
The deadline for submissions is December 20, 2013. The talk committee,
consisting of Daniel Seuffert, Marius Nünnerich and Benny Siegert,
will consider the proposals. If yours has been accepted, you will be
informed by e-mail before the end of the year.
October 11, 2013 posted by Thomas Klausner
The following report is by Manuel Wiesinger:
First of all, I like to thank the NetBSD Foundation for enabling me to successfully complete this Google Summer of Code. It has been a very valuable experience for me.
My project is a defragmentation tool for FFS. I want to point out at the beginning that it is not ready for use yet.
What has been done:
Fragment analysis + reordering. When a file is smaller or equal than the file system's fragment size, it is stored as a fragment. One can think of a fragment as a block. It can happen that there are many small files that occupy a fragment. When the file systems changes over time it can happen that there are many blocks containing fewer fragments than they can hold. The optimization my tool does is to pack all these fragments into fewer blocks. This way the system may get a little more free space.
Directory optimization. When a directory gets deleted, the space for that directory and its name are appended to the previous directory. This can be imagined like a linked list. My tool reads that list and writes all entries sequentially.
Non-contiguous files analysis + reordering strategy. This is what most other operating systems call defragmentation - a reordering of blocks, so that blocks belonging to the same file or directory can be read sequentially.
September 30, 2013 posted by Jeff Rizzo
The NetBSD Project is pleased to announce NetBSD 6.1.2, the second security/bugfix update of the NetBSD 6.1 release branch, and NetBSD 6.0.3, the third security/bugfix update of the NetBSD 6.0 release branch. They represent a selected subset of fixes deemed important for security or stability reasons, and if you are running a prior release of NetBSD 6.x3, you are recommended to update.
For more details, please see the NetBSD 6.1.2 release notes or NetBSD 6.0.3 release notes.
Complete source and binaries for NetBSD 6.1.2 and NetBSD 6.0.3 are available for download at many sites around the world. A list of download sites providing FTP, AnonCVS, SUP, and other services may be found at http://www.NetBSD.org/mirrors/
September 28, 2013 posted by Jeff Rizzo
The NetBSD Project is pleased to announce NetBSD 5.2.1, the first security/bugfix update of the NetBSD 5.2 release branch, and NetBSD 5.1.3, the third security/bugfix update of the NetBSD 5.1 release branch. They represent a selected subset of fixes deemed important for security or stability reasons, and if you are running a release of NetBSD prior to 5.1.3, you are recommended to update to a supported NetBSD 5.x or NetBSD 6.x version.
For more details, please see the NetBSD 5.2.1 release notes or NetBSD 5.1.3 release notes.
Complete source and binaries for NetBSD 5.2.1 and NetBSD 5.1.3 are available for download at many sites around the world. A list of download sites providing FTP, AnonCVS, SUP, and other services may be found at http://www.NetBSD.org/mirrors/
Updates to NetBSD 6.x will be coming in the next few days.
September 23, 2013 posted by Martin Husemann
Just a small update on the previous post
about firefox on sparc64: after a bit more work, the brand new version 24 ESR builds straight from pkgsrc (so should be included in the next set of binary pkgs).
All open issues (wrong colours on scaled images, failing https, ...) have been resolved.
Here is a new screeenshot:
September 18, 2013 posted by Antti Kantee
Yesterday I wrote a serious, user-oriented post about running applications directly on the Xen
hypervisor. Today I compensate for the seriousness by writing a
why-so-serious, happy-buddha type kernel hacker post. This post is
about using NetBSD kernel PCI drivers in
rump kernels on Xen, with device access courtesy of Xen PCI passthrough.
September 17, 2013 posted by Antti Kantee
There are a number of motivations for running applications directly on
top of the Xen hypervisor without resorting to a full general-purpose OS.
For example, one might want to maximally isolate applications with minimal
overhead. Leaving the OS out of the picture decreases overhead, since
for example the inter-application protection offered normally by virtual
memory is already handled once by the Xen hypervisor.
However, at the same time problems arise: applications expect and use
many services normally provided by the OS, for example files, sockets,
event notification and so forth. We were able to set up a production
quality environment for running applications as Xen DomU's in a few
weeks by reusing hundreds of thousands of lines of unmodified driver and
infrastructure code from NetBSD. While the amount of driver code may
sound like a lot for running single applications, keep in mind that it
involves for example file systems, the TCP/IP stack, stdio, system calls
and so forth -- the innocent-looking open() alone accepts over
20 flags which must be properly handled. The remainder of this post
looks at the effort in more detail.