Review your favorite Linux distribution.
Go Back > Forums > Non-*NIX Forums > Programming
User Name
Programming This forum is for all programming questions.
The question does not have to be directly related to Linux and any language is fair game.


  Search this Thread
Old 05-29-2013, 07:02 AM   #1
LQ Newbie
Registered: Mar 2013
Posts: 5

Rep: Reputation: Disabled
linux doesn't call scheduler after interrupt and set task need resch flag


In a linux task I am generating interrupts for each memory request it is doing. When the interrupt is called I am doing the following in the interrupt handler:

1 dequeue the task
2 Set the task state to TASK_UNINTERRUPTIBLE.
3 call set_tsk_need_resch for this task.

After the interrupt handler completes I expect that another task is going to run, but instead
this task still generates printk's that I print in the task itself because it is still running.
I think there are no semaphores holded by the task.
What can be the problem why it is still running?

---------- Post added 05-29-13 at 06:03 AM ----------

By the way, the values are set are set correct.


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
LXer: The DB2 SQL-based Admin Task Scheduler for Linux and UNIX LXer Syndicated Linux News 0 09-23-2008 05:10 PM
Event based task scheduler? beeblequix Linux - Software 1 01-30-2008 12:49 PM
Task Scheduler FC4, KDE lowebb Linux - Software 7 02-21-2006 06:19 PM
More accurate task scheduler lowspeed Linux - General 7 02-17-2005 09:21 PM
task scheduler? is there any? bruno buys Linux - General 1 11-17-2003 04:09 PM > Forums > Non-*NIX Forums > Programming

All times are GMT -5. The time now is 11:04 AM.

Main Menu
Write for LQ is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration