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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Matthew Stivala

HP OfficeJet 250 Mobile Printer

The HP OfficeJet 250 Mobile Printer is a great device that fits perfectly into my fast paced and mobile lifestyle. My first impression of the printer itself was how incredibly compact and sleek the device was.

Armand Abogado

HP OfficeJet 250 Mobile Printer

Wireless printing from my iPhone was also a handy feature, the whole experience was quick and seamless with no setup requirements - accessed through the default iOS printing menu options.

Azadeh Williams

HP OfficeJet Pro 8730

A smarter way to print for busy small business owners, combining speedy printing with scanning and copying, making it easier to produce high quality documents and images at a touch of a button.

Andrew Grant

HP OfficeJet Pro 8730

I've had a multifunction printer in the office going on 10 years now. It was a neat bit of kit back in the day -- print, copy, scan, fax -- when printing over WiFi felt a bit like magic. It’s seen better days though and an upgrade’s well overdue. This HP OfficeJet Pro 8730 looks like it ticks all the same boxes: print, copy, scan, and fax. (Really? Does anyone fax anything any more? I guess it's good to know the facility’s there, just in case.) Printing over WiFi is more-or- less standard these days.

Ed Dawson

HP OfficeJet Pro 8730

As a freelance writer who is always on the go, I like my technology to be both efficient and effective so I can do my job well. The HP OfficeJet Pro 8730 Inkjet Printer ticks all the boxes in terms of form factor, performance and user interface.

Michael Hargreaves

Windows 10 for Business / Dell XPS 13

I’d happily recommend this touchscreen laptop and Windows 10 as a great way to get serious work done at a desk or on the road.

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