Download your favorite Linux distribution at LQ ISO.
Go Back > Forums > Linux Forums > Linux - Server
User Name
Linux - Server This forum is for the discussion of Linux Software used in a server related context.


  Search this Thread
Old 08-21-2012, 01:40 AM   #1
LQ Newbie
Registered: Jul 2012
Posts: 9

Rep: Reputation: Disabled
sles11sp1 system freeze (cpu mem disk all idle)

We have 600 suse servers, and there are system freeze occured some times, just 1 or 2 servers freeze at a time.

When the server freeze, I can not ssh to it , and can not login using monitor(all is freeze)

Then, I create a screen session for every server. When I found a server freeze, I opened the screen session, then found some times I can run command in the session.

command such as 'vmstat', 'uptime', 'iostat' ,'cat', 'ls' usually can run, but very little time hang.
top command may hang some times.
if I use pipe, the the session will hang 100%.

I have check cpu , mem , disk io, also the file in /proc/sys/fs/ such as file-nr, but they were all idle .

So I think there maybe a io lock occured in the kernel, but I can not find it


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
[SOLVED] High CPU load, but low CPU usage (high idle CPU) baffy Linux - Newbie 5 03-13-2013 09:24 AM
Why is the disk accessed when the system is idle? stf92 Linux - Software 2 06-18-2010 12:58 PM
System freeze, hard disk problem? nicolas765 Linux - General 1 03-27-2007 05:58 AM
System freeze on large file/heavy disk jshellman Linux - Hardware 1 11-15-2006 03:47 PM > Forums > Linux Forums > Linux - Server

All times are GMT -5. The time now is 12:52 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
Open Source Consulting | Domain Registration