Bug 211486

Summary: LTC27431-lcs: device does not recover after disable/enable or link failure
Product: Red Hat Enterprise Linux 4 Reporter: Issue Tracker <tao>
Component: kernelAssignee: Chris Snook <csnook>
Status: CLOSED ERRATA QA Contact: Brian Brock <bbrock>
Severity: medium Docs Contact:
Priority: medium    
Version: 4.4CC: jbaron, tao
Target Milestone: ---   
Target Release: ---   
Hardware: s390   
OS: Linux   
Whiteboard:
Fixed In Version: RHBA-2007-0304 Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2007-05-08 03:52:25 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: 234547    
Attachments:
Description Flags
lcs driver update none

Description Issue Tracker 2006-10-19 17:50:46 UTC
Escalated to Bugzilla from IssueTracker

Comment 1 Issue Tracker 2006-10-19 17:50:59 UTC
LTC Owner is: jan.glauber.com
LTC Originator is: jan.glauber.com


Description:
lcs: Unpredictable results after cable pull/plug-in.

Symptom:
Device not operational anymore after cable pull/plug-in. Unpredictable results
occured, e.g. kernel panic using cards of type QD8F.

Problem:
Stoplan command and delete multicast address command were not proper recognized
by OSA card under heavy network workload.
Channel/device error checks missing in interrupt handler.

Solution:
Missing error checks in interrupt handler added. LCS device recovery improved.
Schedule recovery on card's problems or cable plug-in.
This event sent from IssueTracker by csnook  [Support Engineering Group]
 issue 102553

Comment 2 Chris Snook 2006-10-19 18:08:07 UTC
Created attachment 138892 [details]
lcs driver update

Attached patch against 2.6.9-42.EL fixes the link status change handling, and
has been tested by IBM.  This code is upstream as of 2.6.17.

Comment 5 Jason Baron 2006-12-15 02:37:04 UTC
committed in stream U5 build 42.32. A test kernel with this patch is available
from http://people.redhat.com/~jbaron/rhel4/


Comment 7 Jay Turner 2007-01-02 13:45:53 UTC
QE ack for RHEL4.5.

Comment 10 Red Hat Bugzilla 2007-05-08 03:52:26 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.

http://rhn.redhat.com/errata/RHBA-2007-0304.html