Bug 723670

Summary: Introduce "acpi_rsdp=" parameter for kdump
Product: Red Hat Enterprise Linux 6 Reporter: Takao Indoh <tindoh>
Component: kernelAssignee: Takao Indoh <tindoh>
Status: CLOSED ERRATA QA Contact: Chao Ye <cye>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 6.1CC: czhang, lwang, qcai
Target Milestone: rc   
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: kernel-2.6.32-176.el6 Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2011-12-06 13:53:12 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 681796    
Attachments:
Description Flags
Patch to pass RSDP address none

Description Takao Indoh 2011-07-20 19:15:31 UTC 
Created attachment 514071 [details]
Patch to pass RSDP address

Description of problem:
kdump did not work on EFI-booted machine and this problem was fixed in 6.0
by using EFI physical-mode(bz593111). But physical-mode does not work on some
firmwares, so instead of physical-mode, introduce "acpi_rsdp=" parameter to pass
ACPI RSDP address so that 2nd kernel can boot without EFI.

Version-Release number of selected component (if applicable):
kernel-2.6.32-131.0.15.el6

How reproducible:
always on some machines

Steps to Reproduce:
1.Boot system from EFI
2.Start kdump
  
Actual results:
Kdump does not wrok

Expected results:
Kdump works

Additional info:
bz681796 for kexec-tools
Comment 2 Takao Indoh 2011-07-21 20:12:06 UTC 
The patch is included in Len Brown's tree.
commit 4996c02306a25def1d352ec8e8f48895bbc7dea9
Author: Takao Indoh <indou.takao.com>
Date:   Thu Jul 14 18:05:21 2011 -0400

If need help to test it, please contact me(Takao Indoh, tindoh).
I and Fujitsu can help it.
Comment 3 Aristeu Rozanski 2011-08-02 13:57:59 UTC 
Patch(es) available on kernel-2.6.32-176.el6
Comment 7 Chao Ye 2011-09-19 07:16:32 UTC 
Change status to VERIFIED based on https://bugzilla.redhat.com/show_bug.cgi?id=681796#c18.
Comment 8 errata-xmlrpc 2011-12-06 13:53:12 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

http://rhn.redhat.com/errata/RHSA-2011-1530.html