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Bug 156875

Summary: libata - master supports lba48 but slave does not
Product: Red Hat Enterprise Linux 4 Reporter: David Milburn <dmilburn>
Component: kernelAssignee: John W. Linville <linville>
Status: CLOSED ERRATA QA Contact: Brian Brock <bbrock>
Severity: high Docs Contact:
Priority: medium    
Version: 4.0CC: davej, jgarzik, poelstra, tao
Target Milestone: ---   
Target Release: ---   
Hardware: i686   
OS: Linux   
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2005-06-08 15:14:11 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Description Flags
Kernel bootup messages after applying linux-2.6.9-libata-lba48-max-sectors.patch none

Description David Milburn 2005-05-04 20:54:27 UTC
From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.6) Gecko/20050302 Firefox/1.0.1 Fedora/1.0.1-1.3.2

Description of problem:
Dell reports that a SATA host configured with a master supporting lba48 and a slave that does not support lba48, renders the slave inaccessible. The customer has supplied a patch that will not set the host's max_sectors when a drive supporting lba48 has been detected, since this becomes the default max sectors for any drives probed after that point. 

Version-Release number of selected component (if applicable):

How reproducible:
Couldn't Reproduce

Additional info:

I patched the kernel-2.6.9-6.37.EL with the customer patch, booted kernel on i686 system with a Promise SX4 controller and a SATA ST3160023AS to verify that it was still accessible.

Comment 2 David Milburn 2005-05-04 21:03:52 UTC
Created attachment 114042 [details]
Kernel bootup messages after applying linux-2.6.9-libata-lba48-max-sectors.patch

Kernel messages at boot up after applying the

Comment 3 John W. Linville 2005-05-05 21:27:22 UTC
RHEL4 test kernels w/ above patches available here: 
Please verify that they are working and post the results here.  Thanks! 

Comment 4 Dave Jones 2005-05-09 22:25:52 UTC
fixed in CVS.

Comment 5 Tim Burke 2005-05-12 13:49:34 UTC
In 2.6.9-9. So its in U1.

Comment 7 Tim Powers 2005-06-08 15:14:11 UTC
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on the solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.