LinuxQuestions.org
Did you know LQ has a Linux Hardware Compatibility List?
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 03-15-2014, 12:21 PM   #1
trist007
Senior Member
 
Registered: May 2008
Distribution: Slackware
Posts: 1,004

Rep: Reputation: 67
A question about kernel upgrade...


I did a clean install of Slackware64 14.1 off dvd media. This came with kernel 3.10.17-x86_64.

I am running a i7-4770 processor and slackware64 8 cores or 8 penguins on boot. I setup a mirror in /etc/slackpkg/mirrors for the slackware-current repo.

I ran a slackpkg upgrade-all, which upgraded me to 3.10.30-x86_64. My computer has EFI so I copied the new vmlinuz-huge-3.10.30 over /boot/efi/EFI/Slackware/vmlinuz. I rebooted and I saw the new kernel 3.10.30-x86_64. However, when it boots it only shows 4 cores or 4 penguins on boot.

I'm trying to figure out why this kernel would only recognize 4 cores instead of 8. It's an SMP kernel. Have any of you guys encountered this?

-Tristan
 
Old 03-15-2014, 12:49 PM   #2
phenixia2003
Member
 
Registered: May 2006
Location: France
Distribution: Slackware
Posts: 299

Rep: Reputation: 179Reputation: 179
Hello,

Quote:
Originally Posted by trist007 View Post
I am running a i7-4770 processor and slackware64 8 cores or 8 penguins on boot.

I rebooted and I saw the new kernel 3.10.30-x86_64. However, when it boots it only shows 4 cores or 4 penguins on boot.
The i7-4770 has hyper-threading (i.e 4 cores/8 threads). Have you changed something in your bios ? There must be an option for Hyper-Threading which must be enabled to get 2 threads/core (i.e 8 penguins), otherwise, you will get only 1 thread/core (4 penguins)

--
SeB
 
1 members found this post helpful.
Old 03-15-2014, 03:45 PM   #3
trist007
Senior Member
 
Registered: May 2008
Distribution: Slackware
Posts: 1,004

Original Poster
Rep: Reputation: 67
Turned out when I removed the "acpi=off" boot parameter got my 8 penguins back. I guess acpi works with hyperthreading. The fan noise is back down. Thanks.
 
  


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
kernel Upgrade Question. rvijay Debian 4 02-21-2005 03:54 PM
Kernel upgrade question daniel_lidstrom Debian 2 01-17-2005 09:51 AM
Upgrade kernel question satimis Linux - Distributions 1 10-26-2003 09:47 PM
Kernel upgrade question murpheus Linux - General 5 03-15-2003 11:08 PM
Kernel upgrade question crealkillerI75 Slackware 4 08-06-2002 02:38 PM


All times are GMT -5. The time now is 03:17 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