NetBSD Blog
This report was written by Maciej Grochowski as a part of developing the AFL+KCOV project. How Fuzzing works? The dummy Fuzzer. The easy way to describe fuzzing is to compare it to the process of unit testing a program, but with different input. This input can be random, or it can be generated in some way that makes it unexpected form standard execution perspective. The simplest 'fuzzer' can be wr
NetBSD Blog
I have presented the state of NetBSD sanitizers during two conferences in the San Francisco Bay Area: Google Summer of Code Mentor Summit (Mountain View) and MeetBSDCa (Santa Clara, Intel Campus SC12). I've also made progress in upstreaming of our local patches to LLVM sanitizers and introducing generic NetBSD enhancements there. The Bay Area I took part (together with William Coldwell - cryo@) in
NetBSD Blog
Hello all, the repository conversion setup for NetBSD CVS -> Fossil -> Git has found a new home. Ironically, on former cvs.NetBSD.org hardware. This provides a somewhat faster conversion cycle as well as removing anoncvs.NetBSD.org from the process. This should avoid occasional problems with incomplete syncs. Two other changes have been applied at the same time: The Fossil repositories have moved
NetBSD fully reproducible builds | NetBSD Blog
Introduction I have been working on and off for almost a year trying to get reproducible builds (the same source tree always builds an identical cdrom) on NetBSD. I did not think at the time it would take as long or be so difficult, so I did not keep a log of all the changes I needed to make. I was also not the only one working on this. Other NetBSD developers have been making improvements for the
NetBSD Blog
Some years ago I wrote about the possibility to load and use standard NetBSD kernel modules in rump kernels on i386 and amd64. With the recent developments in buildrump.sh and the improved ability to host rump kernels on non-NetBSD platforms, I decided to try loading a binary NetBSD kernel module into a rump kernel compiled for and running on Linux. The hypothesis was that the NetBSD kernel module
NetBSD Blog
There are numerous good tools which do an excellent job of testing kernel features and help to catch bugs. The more frequently they are run as part of the regular development cycle, the more bugs they expose before the bugs are shipped to be discovered by end users. However, prior to being able to execute kernel tests configuration is required. Examples of configuration steps include mounting the
NetBSD Blog
In a software project as large as NetBSD the interactions between different software components are not always immediately obvious to even the most skilled programmers. Tests help ensure that the system functions according to the desired criteria. Periodic automated runs of these tests with results visible on the web ensures both that tests are run in a regular fashion and that the results are ava
NetBSD Blog: Runnable Userspace Meta Programs in NetBSD 5.0
Introduction Rump (Runnable Userspace Meta Programs) is a kernel virtualization and isolation technique available only in NetBSD. Rump uses the standard user process abstraction to provide a virtualization container for kernel components such as file systems and networking. The first release to feature rump support is NetBSD 5.0. For the user, rump offers increased reliability and system partition
NetBSD Blog
With the release of NetBSD 5.0, a new testing infrastructure for the operating system will get wide exposure. This testing infrastructure is based on the Automated Testing Framework (ATF), a project that was started as part of the Google Summer of Code 2007 program, and that provides a platform-independent framework to easily write and automatically exercise test cases. As of this release, only a
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