Bug 861515

Summary: kernel 3.6 fails to boot. apci=off works, acpi=ht does not
Product: [Fedora] Fedora Reporter: Thomas H.P. Andersen <phomes>
Component: kernelAssignee: Kernel Maintainer List <kernel-maint>
Status: CLOSED NOTABUG QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 18CC: gansalmon, itamar, jonathan, kernel-maint, madhu.chinakonda, phomes
Target Milestone: ---   
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2012-10-04 01:10:23 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Attachments:
Description Flags
lspci (from 3.6.0-0.rc6.git0.2)
none
dmidecode (from 3.6.0-0.rc6.git0.2)
none
dmesg (from 3.6.0-0.rc6.git0.2) none

Description Thomas H.P. Andersen 2012-09-28 21:50:57 UTC 
Description of problem:

The kernel hangs when trying to boot the 3.6 version. Latest 3.5 works.
Booting with acpi=off works, but acpi=ht does not.

Version-Release number of selected component (if applicable):
I have tried all the kernels since the alpha (latest test with 3.6.0-0.rc7.git1.4.fc18.x86_64)

How reproducible:
Boot any 3.6 kernel on this hardware.
  
Actual results:
The kernel hangs after "Loading initial ramdisk...".

Expected results:
A booting kernel with acpi turned on

Additional info:
I tried the suggestions given on the wiki:
http://fedoraproject.org/wiki/Common_kernel_problems#Crashes.2FHangs

acpi=off makes it boot. acpi=ht does not boot. Found this comment somewhere:
"This disables all of ACPI except just enough to enable Hyper Threading. If acpi=off works and acpi=ht fails, then the issue is in the ACPI table parsing code itself, or perhaps the SMP code."
Comment 1 Thomas H.P. Andersen 2012-09-28 21:56:13 UTC 
Created attachment 618775 [details]
lspci (from 3.6.0-0.rc6.git0.2)
Comment 2 Thomas H.P. Andersen 2012-09-28 21:56:54 UTC 
Created attachment 618776 [details]
dmidecode (from 3.6.0-0.rc6.git0.2)
Comment 3 Thomas H.P. Andersen 2012-09-28 21:57:32 UTC 
Created attachment 618777 [details]
dmesg (from 3.6.0-0.rc6.git0.2)
Comment 4 Thomas H.P. Andersen 2012-10-04 01:10:23 UTC 
With the newer kernels (3.6.0-1) the problem is gone. I do get a lot of warnings and errs in dmesg but I can live with that.

Closing.