Stories by Jonathan Corbet

Kernel space: The Tru64 Advanced Filesystem

On June 23, HP announced that it was releasing the source for the "Tru64 Advanced Filesystem" (or AdvFS) under version 2 of the GPL. This is, clearly, a large release of code from HP. What is a bit less clear is what the value of this release will be...

Kernel space: the vmsplice() exploit

When this was being written, distributors were working quickly to ship kernel updates fixing the local root vulnerabilities in the vmsplice() system call. Unlike a number of other recent vulnerabilities which have required special situations (such as...

Kernel space: Details of the vmsplice() exploit

Last week, we published a discussion of the vmsplice() exploit which showed how the failure to check permissions for a read operation led to a buffer overflow within the kernel. Subsequently, a linux-kernel reader pointed out that the article stopped...

Kernel space: How to use a terabyte of RAM

We have not yet reached a point where systems - even high-end boxes - come with a terabyte of installed memory. But products like those from Violin Memory make it clear that the day is coming; one can buy a Violin box with 500GB in it now. So it seem...

In search of a quality kernel

Discussions of kernel quality are not a new phenomenon on linux-kernel. It is, indeed, a topic which comes up with a certain regularity, more so than with many other free software projects. The size of the kernel, the rate at which its code changes, ...

Fair user scheduling for Linux

The Completely Fair Scheduler (CFS) was merged for the 2.6.23 kernel. One CFS feature which did not get in, though, was the group scheduling facility. Group scheduling makes the CFS fairness algorithm operate in a hierarchical fashion: processes are ...

Linux gets CAN support

The Controller Area Network (CAN) specification describes a networking stack aimed at a specific environment: embedded, realtime controller networks. At the physical layer, it uses a differential serial technology which is intended to be highly resis...

A generic tracing API for Linux

Dynamic kernel tracing remains high on the wishlists presented by many Linux users. While much work has been done to create a powerful tracing capability, very little of that work has found its way into the mainline. The recent posting of one small p...

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GGG Evaluation Team

Kathy Cassidy

STYLISTIC Q702

First impression on unpacking the Q702 test unit was the solid feel and clean, minimalist styling.

Anthony Grifoni

STYLISTIC Q572

For work use, Microsoft Word and Excel programs pre-installed on the device are adequate for preparing short documents.

Steph Mundell

LIFEBOOK UH574

The Fujitsu LifeBook UH574 allowed for great mobility without being obnoxiously heavy or clunky. Its twelve hours of battery life did not disappoint.

Andrew Mitsi

STYLISTIC Q702

The screen was particularly good. It is bright and visible from most angles, however heat is an issue, particularly around the Windows button on the front, and on the back where the battery housing is located.

Simon Harriott

STYLISTIC Q702

My first impression after unboxing the Q702 is that it is a nice looking unit. Styling is somewhat minimalist but very effective. The tablet part, once detached, has a nice weight, and no buttons or switches are located in awkward or intrusive positions.

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