Bug 691065

Summary: Boot hangs for 10s before Initializing CPUs
Product: [Fedora] Fedora Reporter: Jacek Pliszka <Jacek.Pliszka>
Component: kernelAssignee: Kernel Maintainer List <kernel-maint>
Status: CLOSED INSUFFICIENT_DATA QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: unspecified    
Version: 14CC: gansalmon, itamar, jonathan, kernel-maint, madhu.chinakonda
Target Milestone: ---   
Target Release: ---   
Hardware: i686   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2011-03-31 06:29:12 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Attachments:
Description Flags
dmesg none

Description Jacek Pliszka 2011-03-26 13:55:08 UTC 
Description of problem:

This is fragment of dmesg:

[    0.068446] CPU0: Intel(R) Core(TM) i7 CPU       Q 720  @ 1.60GHz stepping 05
[    0.170370] Booting Node   0, Processors  #1
[   11.623286] Initializing CPU#1
[   11.702767]  #2

It does nothing for 11s - just hangs.

Version-Release number of selected component (if applicable):
2.6.35.11-83.fc14.i686

How reproducible:
boot and watch the messages on HP Pavilion dv6-3060ew
(Intel(R) Core(TM) i7 CPU       Q 720).

The problem does not happen on my wife's Intel Pentium D 3GHz desktop.

Steps to Reproduce:
1. boot
2.
3.
  
Actual results:
11s delay
[    0.068446] CPU0: Intel(R) Core(TM) i7 CPU       Q 720  @ 1.60GHz stepping 05
[    0.170370] Booting Node   0, Processors  #1
[   11.623286] Initializing CPU#1
[   11.702767]  #2

Expected results:
immediate initialization of CPUs

Additional info:
Comment 1 Jacek Pliszka 2011-03-26 13:55:48 UTC 
Created attachment 487742 [details]
dmesg
Comment 2 Jacek Pliszka 2011-03-31 06:29:12 UTC 
The bug disappeared.