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Domain: kerneltrap.org
Stories and comments across the archive that link to kerneltrap.org.
Stories · 185
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Running 100,000 Parallel Threads
An anonymous reader writes "This story explains how the latest Linux development kernel is now able to start and stop over 100,000 threads in parallel in only 2 seconds (about 14 minutes 58 seconds faster than with earlier Linux kernels)! Much of this impressive work is thanks to Ingo Molnar, author of the O(1) scheduler recently merged with the 2.5 Linux development kernel." -
User-Mode Linux Merged Into 2.5 Kernel
An anonymous reader writes "With little fanfare, User Mode-Linux (UML) has been merged into Linus' BitKeeper tree. The merge followed a patch by UML author Jeff Dike, resynching UML with the 2.5.34 development kernel. From the UML homepage, User-Mode Linux provides you with a virtual machine that offers 'a safe, secure way of running Linux versions and Linux processes. Run buggy software, experiment with new Linux kernels or distributions, and poke around in the internals of Linux, all without risking your main Linux setup.'" There's more UML resources available at the community site. -
New Linux Kernel Configuration System
An anonymous reader writes "When Eric S. Raymond tried to replace the Linux kernel's configuration system with "something better", he got booed off the stage. Now Roman Zippel is bravely having his own go at it. Here's an interview with Roman and a look at his new configuration system, aimed for inclusion into the 2.5 development kernel. Also, find some screenshots of his new graphical configuration frontend." -
New Linux Kernel Configuration System
An anonymous reader writes "When Eric S. Raymond tried to replace the Linux kernel's configuration system with "something better", he got booed off the stage. Now Roman Zippel is bravely having his own go at it. Here's an interview with Roman and a look at his new configuration system, aimed for inclusion into the 2.5 development kernel. Also, find some screenshots of his new graphical configuration frontend." -
New Linux Kernel Configuration System
An anonymous reader writes "When Eric S. Raymond tried to replace the Linux kernel's configuration system with "something better", he got booed off the stage. Now Roman Zippel is bravely having his own go at it. Here's an interview with Roman and a look at his new configuration system, aimed for inclusion into the 2.5 development kernel. Also, find some screenshots of his new graphical configuration frontend." -
Panicking In Morse Code
An anonymous reader writes "When an i386 running Linux panics, a function in the kernel called 'panic_blink' causes the system's LEDs to blink. Andrew Rodland recently posted a creative patch to turn that steady blink into a useful message in morse code!" -
New Features For 2.5 Linux Kernel
An anonymous person writes "The current development version of the Linux kernel is 2.5. At the recent Linux kernel summit, it was agreed to have a "feature freeze" on this kernel by October 31, 2002. Here's a story looking at what's left to be merged before the freeze. Projects most likely to make it into 2.5 (and thus be a part of the next stable kernel, 2.6), include: the reverse mapping VM, the Linux Security Module framework, User Mode Linux and support for filesystems greater than 2TB." -
New Features For 2.5 Linux Kernel
An anonymous person writes "The current development version of the Linux kernel is 2.5. At the recent Linux kernel summit, it was agreed to have a "feature freeze" on this kernel by October 31, 2002. Here's a story looking at what's left to be merged before the freeze. Projects most likely to make it into 2.5 (and thus be a part of the next stable kernel, 2.6), include: the reverse mapping VM, the Linux Security Module framework, User Mode Linux and support for filesystems greater than 2TB." -
New Features For 2.5 Linux Kernel
An anonymous person writes "The current development version of the Linux kernel is 2.5. At the recent Linux kernel summit, it was agreed to have a "feature freeze" on this kernel by October 31, 2002. Here's a story looking at what's left to be merged before the freeze. Projects most likely to make it into 2.5 (and thus be a part of the next stable kernel, 2.6), include: the reverse mapping VM, the Linux Security Module framework, User Mode Linux and support for filesystems greater than 2TB." -
Interview with Kernel Hacker Robert Love
An anonymous reader writes: "An interview with the ever interesting Robert Love is at KernelTrap. Robert is author of the kernel preemption patch which has been merged into the 2.5 development kernel. In this interview, Robert discusses the status of Linux kernel preemption, talks about his recent involvement with the O(1) scheduler and explains his recent VM overcommit work. He also reflects upon Linus' use of Bitkeeper, the future of Linux, and the recent Kernel Summit in Ottawa. A Good Read." -
The Future Of The 2.0 Linux Kernel
An Anonymous Reader writes: "The first 2.0 stable kernel was released over six years ago, in June of 1996. It was followed by the 2.2 stable kernel two and a half years later, in January of 1999. The more recent 2.4 stable kernel followed by two years in January of 2001. And the upcoming 2.6 kernel is at least a year off. Through all these years, 2.0 has continued to be maintained, currently up to revision 2.0.39, also released in January of 2001. David Weinehall maintains this kernel, and says, "there _are_ people that still use 2.0 and wouldn't consider an upgrade the next few years, simply because they know that their software/hardware works with 2.0 and have documented all quirks. Upgrading to a newer kernel-series means going through this work again." Read the full story here." -
2.6 and 2.7 Release Management
An anonymous reader writes: "A recent discussion on the Linux kernel mailing list debated whether the upcoming 2.6 and 2.7 kernels should be released at the same time instead of first stabilizing the 2.6 'stable tree' then branching the 2.7 'development tree.' The theory behind the proposition is to keep "new" things from going into 2.6 once it is released, focusing instead only on making it stable. On the flip side of this argument is the possibility that with a 2.7 kernel in development, there will be too little focus on stabilizing the 2.6 kernel. The resulting debate makes for an interesting read." -
Interview With WOLK Creator Marc-Christian Peterse
Jeremy Andrews writes "KernelTrap has spoken with Marc-Christian Petersen, who originated the WOLK project in March of 2002. WOLK is the Working Overloaded Linux Kernel, a large set of nearly 450 useful patches applied against the current stable 2.4 Linux kernel tree. The project has recently expanded to offer a second 'secure' patchset, this one against the older stable 2.2 tree. In this interview, Marc-Christian Petersen tells the history behind WOLK and discusses many of the patches included." -
Interview With WOLK Creator Marc-Christian Peterse
Jeremy Andrews writes "KernelTrap has spoken with Marc-Christian Petersen, who originated the WOLK project in March of 2002. WOLK is the Working Overloaded Linux Kernel, a large set of nearly 450 useful patches applied against the current stable 2.4 Linux kernel tree. The project has recently expanded to offer a second 'secure' patchset, this one against the older stable 2.2 tree. In this interview, Marc-Christian Petersen tells the history behind WOLK and discusses many of the patches included." -
Interview With Jordan Hubbard
Jeremy Andrews writes: "KernelTrap has interviewed kernel hacker and guru Jordan Hubbard, one of the creators of FreeBSD and currently a manager of Apple's Darwin project. With just a high school education, Jordan has offered some impressive contributions to the world of computing. In this interview, Jordan talks about his current involvement with Darwin, as well as his past efforts with FreeBSD and 386BSD. He also reflects on his recent decision to step down from the core FreeBSD team." -
Interview With Jordan Hubbard
Jeremy Andrews writes: "KernelTrap has interviewed kernel hacker and guru Jordan Hubbard, one of the creators of FreeBSD and currently a manager of Apple's Darwin project. With just a high school education, Jordan has offered some impressive contributions to the world of computing. In this interview, Jordan talks about his current involvement with Darwin, as well as his past efforts with FreeBSD and 386BSD. He also reflects on his recent decision to step down from the core FreeBSD team." -
Interview With Jordan Hubbard
Jeremy Andrews writes: "KernelTrap has interviewed kernel hacker and guru Jordan Hubbard, one of the creators of FreeBSD and currently a manager of Apple's Darwin project. With just a high school education, Jordan has offered some impressive contributions to the world of computing. In this interview, Jordan talks about his current involvement with Darwin, as well as his past efforts with FreeBSD and 386BSD. He also reflects on his recent decision to step down from the core FreeBSD team." -
Interview With BitKeeper Author Larry McVoy
Jeremy Andrews writes "KernelTrap has spoken with Larry McVoy, BitMover founder and primary BitKeeper author. BitKeeper, a distributed source control system, has been adopted by Linux kernel creator Linus Torvalds and condemned by free software icon Richard Stallman. In this interview, Larry looks back through the years, describing his exposure to computers and Linux. He also discusses the history of BitKeeper, from writing NSElite for Sun (which turned into their still used SCM, Teamware), to his desire to keep Linus from burning out, to the present day solution. The choice to not license BitKeeper under the GPL is also explained. Larry discusses much beyond Bitkeeper as well, exploring some of his other interests. Find the full interview on KernelTrap." -
Interview With BitKeeper Author Larry McVoy
Jeremy Andrews writes "KernelTrap has spoken with Larry McVoy, BitMover founder and primary BitKeeper author. BitKeeper, a distributed source control system, has been adopted by Linux kernel creator Linus Torvalds and condemned by free software icon Richard Stallman. In this interview, Larry looks back through the years, describing his exposure to computers and Linux. He also discusses the history of BitKeeper, from writing NSElite for Sun (which turned into their still used SCM, Teamware), to his desire to keep Linus from burning out, to the present day solution. The choice to not license BitKeeper under the GPL is also explained. Larry discusses much beyond Bitkeeper as well, exploring some of his other interests. Find the full interview on KernelTrap." -
Interview With BitKeeper Author Larry McVoy
Jeremy Andrews writes "KernelTrap has spoken with Larry McVoy, BitMover founder and primary BitKeeper author. BitKeeper, a distributed source control system, has been adopted by Linux kernel creator Linus Torvalds and condemned by free software icon Richard Stallman. In this interview, Larry looks back through the years, describing his exposure to computers and Linux. He also discusses the history of BitKeeper, from writing NSElite for Sun (which turned into their still used SCM, Teamware), to his desire to keep Linus from burning out, to the present day solution. The choice to not license BitKeeper under the GPL is also explained. Larry discusses much beyond Bitkeeper as well, exploring some of his other interests. Find the full interview on KernelTrap." -
Interview With BitKeeper Author Larry McVoy
Jeremy Andrews writes "KernelTrap has spoken with Larry McVoy, BitMover founder and primary BitKeeper author. BitKeeper, a distributed source control system, has been adopted by Linux kernel creator Linus Torvalds and condemned by free software icon Richard Stallman. In this interview, Larry looks back through the years, describing his exposure to computers and Linux. He also discusses the history of BitKeeper, from writing NSElite for Sun (which turned into their still used SCM, Teamware), to his desire to keep Linus from burning out, to the present day solution. The choice to not license BitKeeper under the GPL is also explained. Larry discusses much beyond Bitkeeper as well, exploring some of his other interests. Find the full interview on KernelTrap." -
Interview With BitKeeper Author Larry McVoy
Jeremy Andrews writes "KernelTrap has spoken with Larry McVoy, BitMover founder and primary BitKeeper author. BitKeeper, a distributed source control system, has been adopted by Linux kernel creator Linus Torvalds and condemned by free software icon Richard Stallman. In this interview, Larry looks back through the years, describing his exposure to computers and Linux. He also discusses the history of BitKeeper, from writing NSElite for Sun (which turned into their still used SCM, Teamware), to his desire to keep Linus from burning out, to the present day solution. The choice to not license BitKeeper under the GPL is also explained. Larry discusses much beyond Bitkeeper as well, exploring some of his other interests. Find the full interview on KernelTrap." -
Reaching Beyond Two-Terabyte Filesystems
Jeremy Andrews writes: "Peter Chubb posted a patch to the lkml, with which he's now managed to mount a 15 terabyte file (using JFS and the loopback device). Without the patch, Peter explains, "Linux is limited to 2TB filesystems even on 64-bit systems, because there are various places where the block offset on disc are assigned to unsigned or int 32-bit variables." Peter works on the Gelato project in Australia. His efforts include cleaning up Linux's large filesystem support, removing 32-bit filesystem limitations. When I asked him about the new 64-bit filesystem limits, he offered a comprehensive answer and this interesting link. The full thread can be found here on KernelTrap. Reaching beyond terabytes, beyond pentabytes, on into exabytes. I feel this sudden discontent with my meager 60 gigabyte hard drive..." -
Reaching Beyond Two-Terabyte Filesystems
Jeremy Andrews writes: "Peter Chubb posted a patch to the lkml, with which he's now managed to mount a 15 terabyte file (using JFS and the loopback device). Without the patch, Peter explains, "Linux is limited to 2TB filesystems even on 64-bit systems, because there are various places where the block offset on disc are assigned to unsigned or int 32-bit variables." Peter works on the Gelato project in Australia. His efforts include cleaning up Linux's large filesystem support, removing 32-bit filesystem limitations. When I asked him about the new 64-bit filesystem limits, he offered a comprehensive answer and this interesting link. The full thread can be found here on KernelTrap. Reaching beyond terabytes, beyond pentabytes, on into exabytes. I feel this sudden discontent with my meager 60 gigabyte hard drive..." -
Linux Multiuser Servers
An Anonymous Coward writes: "John Looney recently posted to the lkml, asking about the possibility of one computer serving multiple users. That is to say, multiple keyboards, mice, monitors, etc, hooked up to a single server. The advantages of such a setup in a lab type environment are obvious. The following discussion ranges through several technical issues with such a configuration, including a kernel limitation of one virtual terminal active at a time, and the typical lack of quality in long video cables. However, none of the issues raised are unbeatable. James Simmons, for example, has been working on cleaning up the virtual terminal code, with many related fixes already merged into Dave Jones' tree." -
KernelTrap Interviews William Lee Irwin III
An Anonymous Coward writes: "KernelTrap has posted an interview with kernel hacker William Lee Irwin III (aka "wli"). He is one of the developers helping to implement a reverse mapping feature into the Linux kernel. (Rik van Riel, the lead of this effort, was interviewed by KernelTrap earlier.) From the interview: 'For regular kernel hacking, rewrites aren't going to get anywhere, those who wrote the originals will scream bloody murder and those who have to call the stuff are terrified they'll have to deal with new bugs in unfamiliar code. But as a crutch for getting around not quite being able to read things it's fine. Maybe someone will come after me for saying so as there are bound to be frivolous rewrites of all kinds of things after any kind of public statement like this, but if people get off their butts and stop duplicating everyone else's merges of $VM + O(1) + misc garbage to write some actual new code, it's worth the flames.'" -
KernelTrap Interviews William Lee Irwin III
An Anonymous Coward writes: "KernelTrap has posted an interview with kernel hacker William Lee Irwin III (aka "wli"). He is one of the developers helping to implement a reverse mapping feature into the Linux kernel. (Rik van Riel, the lead of this effort, was interviewed by KernelTrap earlier.) From the interview: 'For regular kernel hacking, rewrites aren't going to get anywhere, those who wrote the originals will scream bloody murder and those who have to call the stuff are terrified they'll have to deal with new bugs in unfamiliar code. But as a crutch for getting around not quite being able to read things it's fine. Maybe someone will come after me for saying so as there are bound to be frivolous rewrites of all kinds of things after any kind of public statement like this, but if people get off their butts and stop duplicating everyone else's merges of $VM + O(1) + misc garbage to write some actual new code, it's worth the flames.'" -
Andrew Morton And The Low-Latency Kernel Patch
An Anonymous Coward writes: "KernelTrap has interviewed Linux kernel hacker Andrew Morton, author of the low-latency patch. Though his patch has received less attention than Robert Love's preemptible kernel patch (recently merged into the 2.5 kernel), it results in quite significantly lower latencies. The interview is quite interesting, delving into the low-latency patch, explaining how it works and the differences between it and the preempt patch. He also talks about his ext3 work, porting that journaling filesystem from the older stable 2.2 kernel to the current stable 2.4 kernel." -
Andrew Morton And The Low-Latency Kernel Patch
An Anonymous Coward writes: "KernelTrap has interviewed Linux kernel hacker Andrew Morton, author of the low-latency patch. Though his patch has received less attention than Robert Love's preemptible kernel patch (recently merged into the 2.5 kernel), it results in quite significantly lower latencies. The interview is quite interesting, delving into the low-latency patch, explaining how it works and the differences between it and the preempt patch. He also talks about his ext3 work, porting that journaling filesystem from the older stable 2.2 kernel to the current stable 2.4 kernel." -
Major NFS Bugs Found & Being Fixed
mbadolato writes "From an article at kerneltrap.org: On the FreeBSD hacker mailing list, Jordan Hubbard commented on some serious issues with NFS, posting a tool called 'fsx' - originally developed for the NeXT OS - that was ideal for finding them. Matt Dillon was quite impressed by the tool and immediately started playing with it. In very little time, he presented a number of major fixes..."There's a good collection of the emails here describing some of the fixes that Matt Dillon has made."
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Major NFS Bugs Found & Being Fixed
mbadolato writes "From an article at kerneltrap.org: On the FreeBSD hacker mailing list, Jordan Hubbard commented on some serious issues with NFS, posting a tool called 'fsx' - originally developed for the NeXT OS - that was ideal for finding them. Matt Dillon was quite impressed by the tool and immediately started playing with it. In very little time, he presented a number of major fixes..."There's a good collection of the emails here describing some of the fixes that Matt Dillon has made."
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The Evolution of Linux
Taiko writes: "Kerneltrap.org has posted some of the more interesting messages from a recent kernel mailing list discussion. It started with a post on proper indentation, but turned into something a bit more. There are some posts by Linus and Alan Cox about the nature of design, computer science, Linux development, evolution, and more. Quite interesting and funny." -
OpenBSD 3.0 Release, Interview with Theo
mvw writes: "Here is an interview with OpenBSD's Theo de Raadt. Interesting is his comment on Soft Updates and the comparison to the rivaling Journaling file systems technology. Further he links to a very interesting paper by some Soft Updates researchers." And although OpenBSD 3.0 has an "official" release date of December 1 for whatever reason, it seems to be available by FTP or CD already. Lots of changes since 2.9. -
KernelTrap Talks WIth GNU/Hurd Developer Neal Walfield
An Anonymous Coward writes: "One of the GNU/Hurd developers, Neal Walfield, was recently interviewed by KernelTrap. Nice read." -
KernelTrap Talks WIth GNU/Hurd Developer Neal Walfield
An Anonymous Coward writes: "One of the GNU/Hurd developers, Neal Walfield, was recently interviewed by KernelTrap. Nice read."