LinuxQuestions.org
View the Most Wanted LQ Wiki articles.
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Distributions > Slackware
User Name
Password
Slackware This Forum is for the discussion of Slackware Linux.

Notices

Reply
 
Search this Thread
Old 05-31-2007, 07:58 PM   #1
Furlinastis
Member
 
Registered: Dec 2004
Location: Ball of Confusion
Distribution: Slackware,Bluewhite64
Posts: 252

Rep: Reputation: 30
kernel does not detect L2 cache


cat /proc/cpuinfo:

cache size : 32 KB

dmesg | grep -i cache:

CPU: L1 I cache: 16K, L1 D cache: 16K

cat /boot/config | grep -i cache:

CONFIG_X86_L1_CACHE_SHIFT=5


Both CPUs are like that. I know my motherboard is compatible with my CPU. I have no idea what gives? I know it has 512K of L2 cache. I know it should read like:

cat /proc/cpuinfo:

cache size : 512 KB

dmesg | grep -i cache:

CPU: L1 I cache: 16K, L1 D cache: 16K
CPU: L2 cache: 512K

or so... I was wondering why my computer felt slow. I'm guessing this is why.

Here is my specs of my CPUs if it's helpful:
http://processorfinder.intel.com/det...px?sspec=sl6by
 
Old 05-31-2007, 10:17 PM   #2
H_TeXMeX_H
Guru
 
Registered: Oct 2005
Location: $RANDOM
Distribution: slackware64
Posts: 12,928
Blog Entries: 2

Rep: Reputation: 1269Reputation: 1269Reputation: 1269Reputation: 1269Reputation: 1269Reputation: 1269Reputation: 1269Reputation: 1269Reputation: 1269
That's odd. Could be something dealing with either hardware config or it could be a kernel misconfiguration. I'm guessing you're running a custom kernel 'Kernal 2.6.19.1', right ? Are you sure you configured it right, maybe something in the processor section isn't quite right.
 
Old 05-31-2007, 10:55 PM   #3
Furlinastis
Member
 
Registered: Dec 2004
Location: Ball of Confusion
Distribution: Slackware,Bluewhite64
Posts: 252

Original Poster
Rep: Reputation: 30
oops, I haven't updated my sig in a while it should be kernel 2.6.20.4

Anyway, I have SMT support off and Multi-core on. Would turning multi-core scheduler off do anything? Or microcode/msr/cpuid? I have those as modules, which don't load on boot and modprobing them into memory doesn't seem to have any affect on anything.

As soon as I finish backing my stuff up I'll check to see if the default kernel shows the same symptom. I would think if it doesn't that would show this is not a hardware issue?

Another oddity, although this could quite possibly be completely unrelated so if it doesn't jump out at you pay it no mind, is that even though I'm sure my motherboard is ACPI compliant I had to disable it for some reason I forgot. Though, I'll probably remember the reason as soon as I tick "post reply." lol ... I was right, lspci doesn't output anything if I enable ACPI.

Last edited by Furlinastis; 05-31-2007 at 10:57 PM.
 
Old 06-01-2007, 04:52 AM   #4
JZL240I-U
Senior Member
 
Registered: Apr 2003
Location: Germany
Distribution: openSuSE 13.1 / 12.3_64-KDE, Ubuntu 14.04, Fedora 20, Mint 17, Chakra
Posts: 3,667

Rep: Reputation: Disabled
You probably already did it, but just to be on the secure side ... did you look into your BIOS settings?
 
Old 06-01-2007, 09:44 PM   #5
Furlinastis
Member
 
Registered: Dec 2004
Location: Ball of Confusion
Distribution: Slackware,Bluewhite64
Posts: 252

Original Poster
Rep: Reputation: 30
Quote:
Originally Posted by JZL240I-U
You probably already did it, but just to be on the secure side ... did you look into your BIOS settings?
hmm... yea... I enabled "external cache" in the BIOS and problem solved.
 
Old 06-04-2007, 02:37 AM   #6
JZL240I-U
Senior Member
 
Registered: Apr 2003
Location: Germany
Distribution: openSuSE 13.1 / 12.3_64-KDE, Ubuntu 14.04, Fedora 20, Mint 17, Chakra
Posts: 3,667

Rep: Reputation: Disabled
Ah. Thank you for a good smile on monday morning .
 
  


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
cache folder like /var/cache/apt/packages on Debian Shaddy Suse/Novell 0 08-13-2006 10:02 AM
Ram wiht suse, cache Disk cache??? fadelhomsi Linux - Newbie 2 02-05-2006 11:29 PM
clearing cache, web cache on linux varunbihani Linux - General 2 12-08-2005 12:02 PM
Error: Caching enabled and local cache: //var/cache/yum/base/primary.xml.gz does... dr_zayus69 Linux - Software 2 07-06-2005 04:32 AM


All times are GMT -5. The time now is 08:05 AM.

Main Menu
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