Bug 462117

Summary: [QLogic 5.3 bug] qla2xxx - Additional residual-count corrections during UNDERRUN handling.
Product: Red Hat Enterprise Linux 5 Reporter: Marcus Barrow <mbarrow>
Component: kernelAssignee: Marcus Barrow <mbarrow>
Status: CLOSED ERRATA QA Contact: Martin Jenner <mjenner>
Severity: urgent Docs Contact:
Priority: urgent    
Version: 5.3CC: andrew.vasquez, andriusb, coughlan, cward, dhoward, dl-iop-bugzilla, jpirko, jplans, mgahagan, qlogic-redhat-ext, rlary
Target Milestone: rcKeywords: ZStream
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2009-01-20 19:39:15 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: 415811, 465741    
Attachments:
Description Flags
data underrun correction none

Description Marcus Barrow 2008-09-12 19:05:48 UTC 
This is a back port of a patch currently being submitted upstream.

It is a very simple 3 line fix to a problem reported by a major OEM.

This is been verified both via FW simulation of the FCP_RSP packet as
well as tested within the lab with a FC-jammer. It was also verified to fix
the original problem reported.

Add additional tightening of residual-count handling (originally
from commit 6acf8190025e9c4ea513d4084ff089d476112816) where the
driver should discard any lower SCSI-status during
firmware/transport residual-count mismatches.
Comment 1 Marcus Barrow 2008-09-12 19:38:29 UTC 
Created attachment 316616 [details]
data underrun correction
Comment 2 RHEL Program Management 2008-09-12 20:30:20 UTC 
This request was evaluated by Red Hat Product Management for inclusion in a Red
Hat Enterprise Linux maintenance release.  Product Management has requested
further review of this request by Red Hat Engineering, for potential
inclusion in a Red Hat Enterprise Linux Update release for currently deployed
products.  This request is not yet committed for inclusion in an Update
release.
Comment 3 Don Zickus 2008-09-15 14:19:09 UTC 
in kernel-2.6.18-115.el5
You can download this test kernel from http://people.redhat.com/dzickus/el5
Comment 8 Marcus Barrow 2008-11-18 04:16:09 UTC 
Patch verified in 2.6.18-123.el5.
Comment 10 errata-xmlrpc 2009-01-20 19:39:15 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 therefore 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.

http://rhn.redhat.com/errata/RHSA-2009-0225.html