Bug 738096 - Power virtual serial driver fails to connect
Summary: Power virtual serial driver fails to connect
Alias: None
Product: Fedora
Classification: Fedora
Component: kernel
Version: 16
Hardware: ppc64
OS: All
Target Milestone: ---
Assignee: Kernel Maintainer List
QA Contact: Fedora Extras Quality Assurance
Depends On:
TreeView+ depends on / blocked
Reported: 2011-09-13 21:40 UTC by IBM Bug Proxy
Modified: 2011-11-14 19:40 UTC (History)
8 users (show)

Fixed In Version: kernel-3.1.0-0.rc6.git0.3.fc16
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2011-09-24 04:37:50 UTC

Attachments (Terms of Use)
[PATCH] hvcs: Ensure page aligned partner info buffer (1.34 KB, text/plain)
2011-09-13 21:40 UTC, IBM Bug Proxy
no flags Details

System ID Priority Status Summary Last Updated
IBM Linux Technology Center 75123 None None None Never

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

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@redhat.com

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

Technical contact(s):
Brian J. King, bjking1@us.ibm.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:

=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.

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:
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.

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