1. Computers
  2. Display Drivers
  3. Graphics Cards
  4. Memory
  5. Motherboards
  6. Processors
  7. Software
  8. Storage
  9. Operating Systems


Facebook RSS Twitter Twitter Google Plus


Phoronix Test Suite

OpenBenchmarking.org

FBLOG: A Frame-Buffer Driver Just For Kernel Logs

Linux Kernel

Published on 17 June 2012 11:25 AM EDT
Written by Michael Larabel in Linux Kernel
12 Comments

Appearing this weekend on the Linux kernel mailing list was a new frame-buffer driver with the sole purpose of the "fblog" driver being for showing the kernel logs.

David Herrmann is the developer who has been trying to kill CONFIG_VT from the Linux kernel, a.k.a. virtual terminal support. Herrmann was responsible for developing KMSCOM, a DRM-based terminal emulator. Now his latest work on the VT-killing spree is fblog. This is just a frame-buffer driver for displaying kernel logs across all connected frame-buffers.

In David's mailing list message he describes fblog as "This driver simply writes the kernel log to all connected framebuffers. It works similar to fbcon but removes all the complexity of the virtual terminals. There is a sysfs attribute called "active" that allows to enable/disable fblog so user-space can start an xserver or similar. The main purpose is debugging kernel boot problems. Therefore, it is not optimized for speed and I tried keeping it simple. I splitted the patches into 10 small chunks to make review easier."

It's unsure at this point whether the kernel log frame-buffer driver, which is less than 1,000 lines of code, will be accepted to the mainline kernel.

About The Author
Michael Larabel is the principal author of Phoronix.com and founded the web-site in 2004 with a focus on enriching the Linux hardware experience and being the largest web-site devoted to Linux hardware reviews, particularly for products relevant to Linux gamers and enthusiasts but also commonly reviewing servers/workstations and embedded Linux devices. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics hardware drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated testing software. He can be followed via and or contacted via .
Latest Linux Hardware Reviews
  1. Trying The Configurable 45 Watt TDP With AMD's A10-7800 / A6-7400K
  2. Sumo's Omni Gets Reloaded
  3. AMD A10-7800 & A6-7400K APUs Run Great On Linux
  4. Radeon Gallium3D Is Running Increasingly Well Against AMD's Catalyst Driver
Latest Linux Articles
  1. Intel's Latest Linux Graphics Code Competes Against OS X 10.9
  2. Intel Sandy Bridge Gets A Surprise Boost From Linux 3.17
  3. Open-Source Radeon Graphics Have Some Improvements On Linux 3.17
  4. CPUFreq Scaling Tests With AMD's Kaveri On Linux 3.16
Latest Linux News
  1. Steam Now Supports VA-API For In-Home Game Streaming
  2. GNOME 3.14 Beta Released
  3. Mesa 10.3 Branched & RC1 Released, Mesa 10.4 On Master
  4. Intel Sandy Bridge Gains On Linux 3.17 Extend Beyond Graphics
  5. LinuxCon: What's Going On With Fedora.Next
  6. Canonical Joined The Khronos Group To Help Mir/Wayland Drivers
  7. EFL 1.11 Is A Big Milestone For Enlightenment Users
  8. DirectFB Updates GTK3 Support, Working Towards DirectFB 1.8
  9. Userptr Support Set For AMD Radeon GPUs In Linux 3.18
  10. NVIDIA Releases CUDA 6.5 As A Huge Update
Latest Forum Discussions
  1. Btrfs Gets Talked Up, Googler Encourages You To Try Btrfs
  2. American Citizens running AMOK for food stamps
  3. Systemd 216 Piles On More Features, Aims For New User-Space VT
  4. What Linux Distribution Should Be Benchmarked The Most?
  5. Microsoft vs. Campaign
  6. OSS radeon driver for A10-7850K (Kaveri)
  7. Updated and Optimized Ubuntu Free Graphics Drivers
  8. AMD Offers Mantle For OpenGL-Next, Pushes Mantle To Workstations