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

There Might Be Another EXT4 Corruption Bug

Free Software

Published on 01 November 2012 10:59 AM EDT
Written by Michael Larabel in Free Software
33 Comments

It was only days ago that an EXT4 file-system corruption bug affected the stable Linux kernel, which was finally patched yesterday. Now though it looks like there may be another EXT4 corruption bug affecting the stable kernel.

A Phoronix reader, Ernest Boyd, sent in an email "Unfortunately another problem appears to exist which more simply produces Ext4 shutdown corruption." From his LaunchPad bug report, it's easy to reproduce this problem:
1. Format and label a target Ext4 partion using Ubuntu 12.04
2. Install 64bit 12.10 OS using that target without reformatting it
3. Shut down
4. Boot an alternate copy of Ubuntu
5. Restart selecting the newly installed OS
6. Login then shutdown
6. Boot an alternate copy of Ubuntu
7.Fsck the newly installed OS allowing corrections to be made

Each time the the newly installed OS is executed and then shutdown, even if execution only consists of logging on, a subsequent fsck will FAIL.
The bug is marked as critical since it results in file-system corruption and is reproducible with the user having made an image of the Ubuntu 12.10 64-bit installation to reproduce. "I can recreate the symptoms of Ext4 filesystem corruption 100% of the time by restoring from the image, booting, logging on and shutting down."

As of yet there's no comment by the upstream Linux kernel developers or the Ubuntu kernel folks.

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. Even With Re-Clocking, Nouveau Remains Behind NVIDIA's Proprietary Linux Driver
  2. The Power Consumption & Efficiency Of Open-Source GPU Drivers
  3. AMD R600g/RadeonSI Performance On Linux 3.16 With Mesa 10.3-devel
  4. Intel Pentium G3258 On Linux
Latest Linux Articles
  1. Nouveau vs. Radeon vs. Intel Tests On Linux 3.16, Mesa 10.3-devel
  2. KVM Benchmarks On Ubuntu 14.10
  3. X.Org Server 1.16 Officially Released With Terrific Features
  4. Ubuntu With Linux 3.16 Smashes OS X 10.9.4 On The MacBook Air
Latest Linux News
  1. The FFmpeg vs. Libav War Continues In Debian Land
  2. Grand Theft Auto Running On Direct3D Natively On Linux Shows Gallium3D Potential
  3. GCC As A Just-In Time Compiler Is An Interesting Project
  4. Age Of Wonders III Is Still Being Ported To Linux
  5. Git 2.1 To Further Mainline Windows Support Patches
  6. Debian 8.0 Jessie Is Settling For Linux 3.16
  7. Meson: A Next-Gen Build System Showing Promise
  8. Linux 3.16-rc7 Calms Things Down For The Linux 3.16 Kernel
  9. Open-Source AMD Users Report Hawaii GPU Acceleration Is Working
  10. Linus Torvalds On GCC 4.9: Pure & Utter Crap
Latest Forum Discussions
  1. List of Linux friendly Kickstarter projects
  2. Updated and Optimized Ubuntu Free Graphics Drivers
  3. Linus Torvalds On GCC 4.9: Pure & Utter Crap
  4. Porting Mesa to the Playstation 2
  5. ASRock AM1H-ITX: One Of The Best AM1 Mini-ITX Motherboards
  6. Debian + radeonsi
  7. Open-source drivers on ATI R7 260X
  8. Table test