Download – Burn – Boot: Syllable LiveCD4

BurningShadow has released LiveCD4, which is based on LiveCD3, but uses a RAM disk, which makes it more stable and easier to use. Unlike its predecessor, this CD doesn't require floppies or other writable storage to boot. The CD image is available for download here. An installation CD, InstCD1, is also available, with which you can get a system similar to that on LiveCD4 installed permanently.

Kernel debugging with Kprobes

Collecting debugging information from the Linux™ kernel using printk is a well-known method -- and with Kprobes, it can be done without the need to constantly reboot and rebuild the kernel. Kprobes, in combination with 2.6 kernels, provides a lightweight, non-disruptive, and powerful mechanism to insert printk's dynamically. Logging debug info such as the kernel stack trace, kernel data structures, and registers has never been so easy!