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The previous 2.4 Linux kernel maintainer, Marcelo Tossati, resurrected a discussion on adding support for out of memory notifications to the Linux kernel. He explained, "AIX contains the SIGDANGER signal to notify applications to free up some unused cached memory," then noting, "there have been a few discussions on implementing such an idea on Linux, but nothing concrete has been achieved." In a request for discussion, Marcelo added, "on the kernel side Rik suggested two notification points: 'about to swap' (for desktop scenarios) and 'about to OOM' (for embedded-like scenarios)."

Ken Chen submitted a patch to reduce the memory footprint of schedstat in a thread titled, "schedstat needs a diet". He explained, "schedstat is useful in investigating CPU scheduler behavior. Ideally, I think it is beneficial to have it on all the time. However, the cost of turning it on in production system is quite high, largely due to number of events it collects and also due to its large memory footprint." His patch converted numerous unsigned long variables to unsigned int, "most of the fields probably don't need to be [a] full 64-bits on 64-bit [architectures]. Rolling over 4 billion events will most likly take a long time and user space tools can be made to accommodate that."

"This is a request to merge KGDB into the mainline kernel," Jason Wessel announced, posting a series of patches aiming toward that goal. He continued, "as of right now KGDB is comprised of 21 different patches adding in the core api and docs first and then working up to add drivers and arch specific support to KGDB. The patches were broken down into logical pieces for review and comments."

"I'm trying to keep some external drivers up to date with the kernel, and the first two weeks after the release is the worst time for me. There is no way to distinguish the current git kernel from the latest release. It's only after rc1 is released that I can use the preprocessor to check LINUX_VERSION_CODE," explained Pavel Roskin, describing the ongoing effort to keep the out of tree MadWifi driver in sync with the latest released kernel.

Poster printing with KDE. From any KDE application. With preview of results. To any print device. Even to the "PDF printer" that ships with KDE. And also for any printable file format (PDF, image, PostScript, text),...

Installing OpenSUSE 10.3 on the box I selected Xen entry into Grub menu after first phase was completed and system rebooted for final configuration.It brought me into text mode setup very similar graphical one when you select ordinary kernel.

In How Far Behind is Linux?, WSJ writer Lee Gomes sets up a beautiful strawman about the security of GNU/Linux versus Windows and knocks it down with its own answer.

Linux is now mainstream -- so mainstream, in fact, that two of the top three Linux distributions are commercially successful operations, and the third aims to be. Every day, more and more old-school IT firms shake off their initial doubts, get in line behind their customers, and try Linux and other free software projects. In the face of such success, will Linux remain true to its free software ideals and to the community which created it? Or will it morph into a corporate byproduct, driven by the bottom line, and complacent with all forms of predatory intellectual property (IP), including software patents and closed, proprietary standards which are standard fare in the IT industry.

The virtual memory subsystem of a processor implements the virtual address spaces provided to each process. This makes each process think it is alone in the system. The list of advantages of virtual memory are described in detail elsewhere so they will not be repeated here. Instead this section concentrates on the actual implementation details of the virtual memory subsystem and the associated costs.

It’s been almost 200 years since Charles Babbage first started work on his difference engine, and programmable computation is fast approaching 100 years old. Over this time there has been a lot of change in software development and in this article we look at the evolutionary pressure that has shaped that.

The Firefox browser is built using XUL, and the upcoming Firefox 3.0 release will provide a XUL runtime allowing any Firefox user to run any XUL application. In this tutorial, you'll start to program in XUL. You'll see how to leverage your Web development skills to build a XUL-based blog editor. The editor will provide some basic rich text editing, and allow you to save drafts locally that you can reload later for editing.

This week's release of Ubuntu 7.10 "Gutsy Gibbon" is a significant win for the free software community. Not only does this release incorporate an updated package set -- most notably with the Linux 2.6.22 kernel and GNOME 2.20, but it also delivers on new desktop innovations from BulletProofX and displayconfig-gtk to Compiz Fusion being enabled by default on supported systems. However, for those business professionals and gamers that remain dependent on some Windows-only binary applications, the WINE (WINE Is Not An Emulator) project has been making some excellent headway into supporting Windows applications on the Linux desktop. With Ubuntu 7.10 and WINE 0.9.46 in hand, we had set out to compare the performance between Windows XP and Gutsy Gibbon with WINE on two popular DirectX benchmarks.

Java heap areas define objects, arrays, and classes, and Java heap dumps are snap shots of Java heaps at specific times. HeapAnalyzer is a graphical tool that can find possible Java heap leak areas through its heuristic search engine and analysis of the Java heap dump. This technology works on Linux, UNIX, and Windows platforms, and version 2.1 fixes Solaris/HP hprof parser defects.

Fred Trotter has an article in which he discusses Electronic Health Records, the Iroquois Nation's notion of considering the impact of the current generation decision 7 generations from now and Microsoft's HealthVault as well as Google's announced Personal Health Records:

All of the various clients and servers for Enemy Territory: Quake Wars (Community Site) are now available! Thanks TTimo for a job well done as always. You can find all the info you need on the ETQW GNU/Linux FAQ page.

Jaroslav Sykora posted a series of five patches to handle the kernel portion of what he described as "shadow directories", providing an example which utilized FUSE to access the contents of a compressed file from the command line.

Gutsy is running fine -- at times -- on the $0 Laptop (Gateway Solo 1450, 256 MB RAM, 1.3 GHz Celeron). I say "at times" because sometimes power management works, sometimes it doesn't. That part is a bit troubling. It was going fine for awhile, but then I ran a couple of live CDs, some successful, some not (Mepis 6.5, Ubuntu 6.06, DSL 3.3). None of the live CDs ran as well as Ubuntu 7.10, given the latter's superior hardware detection and handling. But after running Mepis (and the live CD probably has nothing to do with it), I rebooted into Ubuntu 7.10 and the fan kept on running. I put the laptop into suspend mode, and when I came out of it, the fan stopped.

Exchanging business cards is a rudimentary form of networking (the people, not the server kind). However, to get the most out of the exchange, you need a card that attracts attention and reflects the image or values you want to project.read more

We often take the ability to choose our default Firefox search engine for granted. By default, it's set to Google, and for most people, this is just fine. But what about queries where a typical search engine is not cutting it?

Thanks to Canonical's System Builder Program, pre-installed Ubuntu Linux PCs are available throughout the world and not just from Dell. Everyone in the Linux desktop world knows that Dell now offers Ubuntu Linux 7.04 on some of its laptops and desktops. Some also know that Dell will soon be offering the latest Ubuntu, 7.10, on its systems. Dell, however, is far from the only PC builder that offers Ubuntu to its customers.