Share your knowledge at the LQ Wiki.
Go Back > Forums > Linux Forums > Linux - General
User Name
Linux - General This Linux forum is for general Linux questions and discussion.
If it is Linux Related and doesn't seem to fit in any other forum then this is the place.


  Search this Thread
Old 12-25-2014, 06:52 AM   #1
LQ Newbie
Registered: Sep 2014
Posts: 5

Rep: Reputation: Disabled
Debian with Apache and TvHeadend: crashes and crashes again

I have installed Debian on a desktop PC and I use it as webserver (apache, only internal LAN) and as tvHeadend server.
It has installed two PCIe TBS DVBS/T cards (Link to product page)
I had to create the file "tbs.conf" in "/etc/modprobe.d" for making working them. Content of the file: "options saa716x_tbs-dvb int_type=1". This tells the driver to start with MSI interrupt support.

It happens again and again, that the machine crashes. It still runs, but is not reachable on the lan and there is no reaction on keyboard inputs. After a cold reset the machine restarts and works again.

At one of the last crashes there were the following messages on the screen:

I added the lines "kernel.panic = 20" and "kernel.panic_on_oops = 20" in the file /etc/sysctl.conf, but this makes no difference. Debian doesn't restart on errors.

What can I try to do?

Old 01-12-2015, 05:11 PM   #2
Senior Member
Registered: Jul 2012
Location: Aachen, Germany
Distribution: Void, Debian
Posts: 1,016

Rep: Reputation: 308Reputation: 308Reputation: 308Reputation: 308
Just ran a quick search for "rcu_sched detected stalls". One of the results that came up was this:

This seems at least somewhat similar. Might be worth trying the proposed solution of adding "nosmp" to the kernel command line parameters. In case you do not know how to do that:

As root edit /etc/default/grub. There is a line that says something like

Change it to
If it already has values you can just append the nosmp. So if e.g. it says
Change it to
GRUB_CMDLINE_LINUX="quiet nosmp"
Then, again as root, run
Then reboot. If it does not help you can go back to the original setting by changing the line back and running update-grub again.
Old 01-12-2015, 05:17 PM   #3
Senior Member
Registered: Jul 2012
Location: Aachen, Germany
Distribution: Void, Debian
Posts: 1,016

Rep: Reputation: 308Reputation: 308Reputation: 308Reputation: 308
Another thought: One thing you could try to isolate potential root causes would be to reinstall from scratch. Start with the base system. See if that crashes. If it doesn't, start installing the software you mentioned package by package, until the crashes reoccur. It would help to see which software package causes the problem.

If it happens right away before you installed any software you may want to try different kernel versions.

Another thought: When you say "desktop PC", does that mean you are running this with Xorg? What happens if you run the machine in headless mode. Does it still crash?

Last edited by joe_2000; 01-12-2015 at 05:17 PM. Reason: typo


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 On
HTML code is Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
plasma desktop crashes, nepomuk crashes, after loggin in fm_clau SUSE / openSUSE 2 09-02-2009 10:14 AM
problem crashes my apache dianarani Linux - Server 3 08-08-2007 01:00 AM
apache crashes shifter General 2 08-01-2007 04:54 AM
Apache Crashes at 12:15 AM Every Time! Louie55 Linux - Software 4 11-13-2005 07:43 PM
Konqueror crashes, SuseWatcher crashes!!! bruno buys Linux - Newbie 9 10-07-2003 10:44 AM > Forums > Linux Forums > Linux - General

All times are GMT -5. The time now is 01:34 PM.

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
Open Source Consulting | Domain Registration