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Date: Sat, 24 Dec 2011 14:43:20 GMT
From: "Vladislav V. Prodan" <universite@ukr.net>
To: freebsd-gnats-submit@FreeBSD.org
Subject: The ULE scheduler does not load in the fourth core processor i3
X-Send-Pr-Version: www-3.1
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>Number:         163587
>Category:       kern
>Synopsis:       [sched_ule] The ULE scheduler does not load in the fourth core processor i3
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:  
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sat Dec 24 14:50:09 UTC 2011
>Closed-Date:    
>Last-Modified:  Sun Dec 25 21:51:39 UTC 2011
>Originator:     Vladislav V. Prodan
>Release:        9.0
>Organization:
support.od.ua
>Environment:
FreeBSD update.xxx 9.0-PRERELEASE FreeBSD 9.0-PRERELEASE #0: Fri Dec 23 23:38:35 MSK 2011     root@update.xxx:/usr/obj/usr/src/sys/update.1  amd64

>Description:
http://i28.fastpic.ru/big/2011/1224/89/b0aa527ed051f352dc938d5c139be989.png

hw.machine: amd64
hw.model: Intel(R) Core(TM) i3-2100 CPU @ 3.10GHz
hw.ncpu: 4

Dec 23 23:41:07 update kernel: FreeBSD/SMP: Multiprocessor System Detected: 4 CPUs
Dec 23 23:41:07 update kernel: FreeBSD/SMP: 1 package(s) x 2 core(s) x 2 SMT threads
Dec 23 23:41:07 update kernel: cpu0 (BSP): APIC ID:  0
Dec 23 23:41:07 update kernel: cpu1 (AP): APIC ID:  1
Dec 23 23:41:07 update kernel: cpu2 (AP): APIC ID:  2
Dec 23 23:41:07 update kernel: cpu3 (AP): APIC ID:  3


Maybe the problem is in the ACPI and/or hyperthreading?
>How-To-Repeat:

>Fix:


>Release-Note:
>Audit-Trail:

From: Yuri Pankov <yuri.pankov@gmail.com>
To: bug-followup@freebsd.org
Cc:  
Subject: Re: misc/163587: The ULE scheduler does not load in the fourth core
 processor i3
Date: Mon, 26 Dec 2011 00:27:27 +0400

 > Dec 23 23:41:07 update kernel: cpu0 (BSP): APIC ID:  0
 > Dec 23 23:41:07 update kernel: cpu1 (AP): APIC ID:  1
 > Dec 23 23:41:07 update kernel: cpu2 (AP): APIC ID:  2
 > Dec 23 23:41:07 update kernel: cpu3 (AP): APIC ID:  3
 
 This looks like 4 CPUs (counted from 0) to me.
 
 
 Yuri
State-Changed-From-To: open->closed 
State-Changed-By: eadler 
State-Changed-When: Sun Dec 25 21:20:24 UTC 2011 
State-Changed-Why:  
Computers count from 0 :) 


http://www.freebsd.org/cgi/query-pr.cgi?pr=163587 

From: "Vladislav V. Prodan" <universite@ukr.net>
To: FreeBSD-gnats-submit@FreeBSD.org
Cc:  
Subject: Re: kern/163587: [sched_ule] The ULE scheduler does not load in the
 fourth core processor i3
Date: Sun, 25 Dec 2011 23:43:57 +0200

 25.12.2011 23:20, eadler@FreeBSD.org пишет:
 > Synopsis: [sched_ule] The ULE scheduler does not load in the fourth core processor i3
 > 
 > State-Changed-From-To: open->closed
 > State-Changed-By: eadler
 > State-Changed-When: Sun Dec 25 21:20:24 UTC 2011
 > State-Changed-Why: 
 > Computers count from 0 :)
 
 That's right.
 cpu3 fourth.
 And the chart cpu3 NOT loaded.
 
 
 -- 
 Vladislav V. Prodan
 System & Network Administrator
 http://support.od.ua
 +380 67 4584408, +380 99 4060508
 VVP88-RIPE
State-Changed-From-To: closed->open 
State-Changed-By: eadler 
State-Changed-When: Sun Dec 25 21:51:38 UTC 2011 
State-Changed-Why:  
I completely missed the chart - sorry. This still _may_ be user error - 
but I can't investigate right now 

http://www.freebsd.org/cgi/query-pr.cgi?pr=163587 
>Unformatted:
