TableOfContents()

Short overview (for news sites, etc)

Linux 2.6.20 greatly improves kdump (http://news.zdnet.co.uk/software/0,1000000121,39285165,00.htm ); KVM (http://kvm.sourceforge.net) for Intel with VT and AMD with SVM hardware virtualization.

Important things (AKA: ''the cool stuff'')

• Asynchronous SCSI scanning
• Multithreaded USB probing
• New 300Hz option. Good because it evenly devides PAL and NTSC framerates

Other stuff

Arch-independent changes in the kernel core

Architecture-specific changes

• ARM
  • Support to change MX1 CPU frequency at runtime.
• i386
  • Add support for a relocatable kernel. This is useful for kexec panics and another kernel being loaded.
• PowerPC
  • Add support for EFIKA boards
  • Add support for the Sony Playstation 3

Filesystems

• DebugFS: inotify support

Networking

CPU Freq

• Add support for CN400 when ACPI C3 isn't available.

Drivers and other subsystems

• pata: add support for Winbond, Marvel, and others
• Add support for Moxa SmartIO multiport serial cards
• optimize o_direct on block devices
• HWMon: New Winbond W83793 hardware monitoring driver

• [http://lwn.net/Articles/203596/ Add support for Log2 mechanism]

• Remove FTape driver
• Sensors
  • Add support for Apple Motion Sensors
  • Support for National Semiconductor PC87427 Super-I/O chip
  • Support for Winbond W83793 sensors

Video

• Add support for Philips UCB1400 touchscreen
• Framebuffer support for IBM GXT4500P adaptor
• Ability to set Geode framebuffer size

Network

• Atmel MACB support

Sound

• Remove obsolete OSS drivers that already have ALSA replacements