LinuxQuestions.org
Share your knowledge at the LQ Wiki.
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Distributions > Debian
User Name
Password
Debian This forum is for the discussion of Debian Linux.

Notices



Reply
 
Search this Thread
Old 07-30-2013, 10:12 PM   #1
Sheepa
LQ Newbie
 
Registered: Jul 2013
Posts: 2

Rep: Reputation: Disabled
Linux server crash (kernel NULL pointer dereference + soft lockup - CPU#1 stuck)


I have a Linux 3.2.0-4-amd64 #1 SMP Debian 3.2.46-1 x86_64 GNU/Linux server that keeps crashing, usually once every 24-72 hours.

I run lighttpd, mysql, haproxy and a couple of always-running java processes together with a bunch of shorter-lived java processes.

Below I have linked the /var/log/syslog and /var/log/messages. They both contain the kernel NULL pointer dereference and the soft lockup bugs lines.

syslog: http://pastebin.com/7VxdkEYu
messages: http://pastebin.com/UdiN2y0d
dmesg: http://pastebin.com/8iQC5c0K

Do anyone have any idea on how to debug this?

Thanks
 
Old 07-31-2013, 07:40 AM   #2
Dutch Master
Senior Member
 
Registered: Dec 2005
Posts: 1,684

Rep: Reputation: 124Reputation: 124
I can't see any obvious errors, on the next crash, try strace
Code:
man strace
It's also worth considering hardware failure.
 
Old 07-31-2013, 02:30 PM   #3
Sheepa
LQ Newbie
 
Registered: Jul 2013
Posts: 2

Original Poster
Rep: Reputation: Disabled
How can i use strace when the system have crashed?

I'm renting the server and they did a full hardware test and found no errors, besides I'm getting this on multiple servers.

Crashed again now while i got a terminal open, got this just before it died:

Code:
Message from syslogd@gs at Jul 31 19:37:37 ...
 kernel:[60109.097507] Oops: 0000 [#1] SMP

Message from syslogd@gs at Jul 31 19:37:37 ...
 kernel:[60109.098872] Stack:

Message from syslogd@gs at Jul 31 19:37:37 ...
 kernel:[60109.099163] Call Trace:

Message from syslogd@gs at Jul 31 19:37:37 ...
 kernel:[60109.099197]  <IRQ>

Message from syslogd@gs at Jul 31 19:37:37 ...
 kernel:[60109.102262]  <EOI>

Message from syslogd@gs at Jul 31 19:37:37 ...
 kernel:[60109.102267] Code: 04 01 00 00 7f a1 eb b0 58 5b 5d c3 48 81 fa 30 75 00 00 76 0c 48 c7 c0 d8 6d 2c 81 ba 30 75 00 00 83 fe 03 74 05 83 fe 01 75 21 <c8> 8b 05 12 e2 3c 00 40 88 b7 12 04 00 00 48 8d b7 50 03 00 00

Message from syslogd@gs at Jul 31 19:37:37 ...
 kernel:[60109.102442] CR2: 000000004744765c

Message from syslogd@gs at Jul 31 19:37:37 ...
 kernel:[60109.102838] Kernel panic - not syncing: Fatal exception in interrupt
 
  


Reply


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
BUG: soft lockup - CPU#3 stuck for 10s! chakkerz Linux - Server 2 06-16-2008 06:34 PM
Server crash: kernel NULL pointer dereference cheerful Linux - Server 1 03-14-2008 01:41 PM
unable to handle kernel NULL pointer dereference omkarlagu Programming 2 01-23-2006 10:50 PM
Kernel Null Pointer Dereference Error Smillie Slackware 3 04-27-2005 06:21 PM
Unable to handle kernel NULL pointer dereference.... kadaver Slackware 2 12-19-2003 08:46 AM


All times are GMT -5. The time now is 06:42 AM.

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