Bug 738096

Summary: Power virtual serial driver fails to connect
Product: [Fedora] Fedora Reporter: IBM Bug Proxy <bugproxy>
Component: kernelAssignee: Kernel Maintainer List <kernel-maint>
Status: CLOSED ERRATA QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: high Docs Contact:
Priority: unspecified    
Version: 16CC: gansalmon, itamar, jkachuck, jonathan, karsten, kernel-maint, madhu.chinakonda, wgomerin
Target Milestone: ---   
Target Release: ---   
Hardware: ppc64   
OS: All   
Whiteboard:
Fixed In Version: kernel-3.1.0-0.rc6.git0.3.fc16 Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2011-09-24 04:37:50 UTC Type: ---
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
[PATCH] hvcs: Ensure page aligned partner info buffer none

Description IBM Bug Proxy 2011-09-13 21:40:43 UTC 
1. Feature Overview:
Feature Id: [75123]
a. Name of Feature: Power virtual serial driver fails to connect
b. Feature Description



2. Feature Details:
Sponsor: Power Virtualization
Architectures:  

Arch Specificity: ---
Affects Kernel Modules: ---
Delivery Mechanism: ---
Category: Kernel
Request Type: F16
d. Upstream Acceptance: ---
Sponsor Priority P3
f. Severity: high
IBM Confidential: ---
Code Contribution: ---
g. Component Version Target: ---

3. Business Case


4. Primary contact at Red Hat:
John Jarvis, jjarvis

5. Primary contacts at Partner:
Project Management Contact:
Luciano Chavez, chavez.com

Technical contact(s):
Brian J. King, bjking1.com

=Comment: #1=================================================
   Brian J. King <brking&#64;us.ibm.com> - 

   
[PATCH] hvcs: Ensure page aligned partner info buffer

The Power platform requires the partner info buffer to be page aligned otherwise it will fail the partner info hcall with H_PARAMETER. Switch from using kmalloc to allocate this buffer to __get_free_page to ensure
page alignment.
=Comment: #2=================================================
   Brian J. King <brking&#64;us.ibm.com> - 

   This patch has been submitted upstream:

http://lists.ozlabs.org/pipermail/linuxppc-dev/2011-September/092887.html
=Comment: #3=================================================
   Brian J. King <brking&#64;us.ibm.com> - 

   The patch was loaded on the previously failing system. With the patch applied, the problem no longer occurs.
Comment 1 IBM Bug Proxy 2011-09-13 21:40:51 UTC 
Created attachment 523015 [details]
[PATCH] hvcs: Ensure page aligned partner info buffer
Comment 2 Josh Boyer 2011-09-13 22:28:15 UTC 
I have no problems adding this patch, but if this is headed to be merged for 3.1 it will find its way into f16 naturally.  How urgent is this?
Comment 3 Josh Boyer 2011-09-14 13:45:50 UTC 
Brian mentioned this is needed to debug anaconda.  I'll add it to the kernel and it will be in the next build.
Comment 4 Fedora Update System 2011-09-16 13:58:37 UTC 
kernel-3.1.0-0.rc6.git0.3.fc16 has been submitted as an update for Fedora 16.
https://admin.fedoraproject.org/updates/kernel-3.1.0-0.rc6.git0.3.fc16
Comment 5 Fedora Update System 2011-09-17 19:33:39 UTC 
Package kernel-3.1.0-0.rc6.git0.3.fc16:
* should fix your issue,
* was pushed to the Fedora 16 testing repository,
* should be available at your local mirror within two days.
Update it with:
# su -c 'yum update --enablerepo=updates-testing kernel-3.1.0-0.rc6.git0.3.fc16'
as soon as you are able to, then reboot.
Please go to the following url:
https://admin.fedoraproject.org/updates/kernel-3.1.0-0.rc6.git0.3.fc16
then log in and leave karma (feedback).
Comment 6 Fedora Update System 2011-09-24 04:37:10 UTC 
kernel-3.1.0-0.rc6.git0.3.fc16 has been pushed to the Fedora 16 stable repository.  If problems still persist, please make note of it in this bug report.