Linux Kernel Workout
From WorkOutWiki2008
Contents |
Proposer
Christoph Hellwig
Purpose
Abstract
This session will be hand on Linux Kernel hacking. We will have some experienced kernel hackers helping attendees to work on the kerne.
There are two primary focusses for this workout:
- fixing bugs from the kernel.org bugzilla or other user reports
- helping to bring drivers up to a standard where they can be submitted for mainline inclusion.
Other aspects will be tolerated, time permitting, but we won't get into things like integration complex new subsystems.
Pre-requisites
Building and running custom kernels Please have built the kernel at least once. Doing a fresh build takes sometime even on a fast laptop and would take a long time.
Languages, tools to be known
C, git/quilt
Getting and compiling the code
Please download the kernel in advance. Use git to download the latest mainline tree.
git clone git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Also build a config in advance for your laptop. It is a good idea to build a kernel in advance and see that it boots and nothing is broken. Feel free to contact the organizers of the workout if you face issues. Please do this in advance
For building a kernel configuration, streamline_config.pl might be of use. Check out [1] for more details on how to use it. Please note, have all the modules you use loaded in when you run streamline_config. Streamline config is also available at [2]
Pre-event planning
Tasks
FIEMAP implementation for btrfs
tracepoints on buffer_heads - akpm buffer tracing patch reborn -> Prasad
check whether partitions size is supported when creating new partitions
randconfig build and related fixes with debug turned on
http://bugzilla.kernel.org/show_bug.cgi?id=11854
build with sparse and fix issues
http://bugzilla.kernel.org/show_bug.cgi?id=11902
http://bugzilla.kernel.org/show_bug.cgi?id=12076 patch available needs testing.
unrestricted_chown mount option -> Niraj and Guru
GUI for lockstat
GUI for ftrace
lockdep with lock location information
implement XFS preallocation ioctls in the VFS
look at whether all compat support is done for all archs
user_regset enablement for architectures (ARM, MIPS etc..)
make a union out sched_entity and sched_rt_entity
Fix group scheduler stats for RT tasks -> Ankita
Add uid information to runqueues in /proc/sched_debug -> Arun
Make runtime decision on whether to enable SCHED_MC exporter sysfs file
xfs_errmask settable through sysctl
File information during mount time on POHMELFS -> Varun
Clean up Glendix (Plan 9 binary support) patches -> Anant
Getting in touch
Links to ML, IRC, people to contact
IRC Channel, OFTC, #fossin-kernel
There should be charts all around. Come up with kernel problems faced, list them on the charts. Email the organizers.
Participants
List of people who will be participating,
Suparna Bhattacharya
Aneesh Kumar
Christoph Hellwig
Amit Shah
Ananth N Mavinakayanahalli
Vaidyanathan Srinivasan
Sripathi Kodi
James Morris
Dhaval Giani
Balbir Singh
Srivatsa Vaddagiri
Bharata B Rao
Maneesh Soni
Srikar
Kamalesh Babulal
Ankita Garg
Arun Bharadwaj
Nikanth Karthikesan
