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2024-12-13 - 01:28

Dates and Events:

OSADL Articles:

2024-10-02 12:00

Linux is now an RTOS!

PREEMPT_RT is mainline - What's next?


2023-11-12 12:00

Open Source License Obligations Checklists even better now

Import the checklists to other tools, create context diffs and merged lists


2023-03-01 12:00

Embedded Linux distributions

Results of the online "wish list"


2022-01-13 12:00

Phase #3 of OSADL project on OPC UA PubSub over TSN successfully completed

Another important milestone on the way to interoperable Open Source real-time Ethernet has been reached


2021-02-09 12:00

Open Source OPC UA PubSub over TSN project phase #3 launched

Letter of Intent with call for participation is now available



Real Time Linux Workshops

1999 - 2000 - 2001 - 2002 - 2003 - 2004 - 2005 - 2006 - 2007 - 2008 - 2009 - 2010 - 2011 - 2012 - 2013 - 2014 - 2015

13th Real-Time Linux Workshop from October 20 to 22 at the Faculty of Electrical Engineering, Czech Technical University in Prague

Announcement - Hotels - Directions - Agenda - Paper Abstracts - Presentations - Registration - Abstract Submission - Sponsoring - Gallery

lockdep: What it can catch, and what it can't, in RT and mainline

Steven Rostedt, Red Hat

Ever since lockdep was introduced in 2006, most deadlock scenarios have been avoided. But when lockdep does detect a problem with the locking, the output it gives can be very cryptic and hard to understand, especially when the locking issues have to do with interrupts or del_timer_sync().

This talk will explain how to translate the lockdep output so that you can understand the locking problem scenario and confidently fix your code (or someone else’s code) to avoid any deadlocks.