Bug 161657

Summary:	iscsi_sfnet driver does not calculate ConnFailTimeout correctly when greater than 15 secs
Product:	Red Hat Enterprise Linux 3	Reporter:	Mike Christie <mchristi>
Component:	kernel	Assignee:	Mike Christie <mchristi>
Status:	CLOSED ERRATA	QA Contact:	Brian Brock <bbrock>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	3.0	CC:	coughlan, davidw, petrides
Target Milestone:	---
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	RHSA-2005-663	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2005-09-28 15:25:30 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:	156320

Description Mike Christie 2005-06-24 23:25:43 UTC

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Description of problem:
For linux-iscsi (drivers/addon/iscsi_sfnet) it appears that if you set the ConnFailTimeout to any time setting then 15 seconds then an additional 50 seconds is added before I/O failover occurs. If your ConnFailTimeout is equal < 15 seconds then the I/O failover occurs based on the timer.

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


How reproducible:
Always

Steps to Reproduce:
1. set ConnFailTimeout > 15 seconds
2.
3.
  

Actual Results:  ConnFailTimeout is x + 50 seconds

Expected Results:  ConnFailTimeout should be x seconds

Additional info:

Comment 3 Mike Christie 2005-06-27 22:39:36 UTC

Updating "Steps to reproduce"

1. set ConnFailTimeout > 15 seconds in iscsi.conf file
2. setup iscsi (run iscsid).
3. unplug network cable (leave unplugged).
4. verify that the log msg from this printk

                printk("iSCSI: session %p replacement timed after %d seconds, "
                       "drop %lu, now %lu, failing all commands\n",
                       session, replacement_timeout, session->session_drop_time,
                      jiffies);

comes after ConnFailTimeout seconds set in iscsi.conf, not ConnFailTimeout + 50
secsonds.

Comment 4 Ernie Petrides 2005-07-13 23:37:38 UTC

A fix for this problem has just been committed to the RHEL3 U6
patch pool this evening (in kernel version 2.4.21-32.11.EL).

Comment 8 Red Hat Bugzilla 2005-09-28 15:25:30 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/RHSA-2005-663.html