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Bug 1324340 - be2iscsi iSCSI boot server does not boot after installation
Summary: be2iscsi iSCSI boot server does not boot after installation
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 6
Classification: Red Hat
Component: dracut
Version: 6.8
Hardware: Unspecified
OS: Linux
high
high
Target Milestone: rc
: ---
Assignee: Harald Hoyer
QA Contact: Martin Hoyer
URL:
Whiteboard:
: 1392411 (view as bug list)
Depends On:
Blocks: 1202403 1309862 1319034
TreeView+ depends on / blocked
 
Reported: 2016-04-06 06:33 UTC by Martin Hoyer
Modified: 2016-11-10 12:59 UTC (History)
14 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2016-05-11 01:10:14 UTC
Target Upstream Version:
Embargoed:
harald: needinfo-
harald: needinfo-

Attachments (Terms of Use)
console (3.82 KB, text/plain)
2016-04-06 06:39 UTC, Martin Hoyer 		no flags Details
dracut-004-409.el6 boot (32.14 KB, text/plain)
2016-04-07 13:53 UTC, Martin Hoyer 		no flags Details
View All


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2016:0954 0 normal SHIPPED_LIVE dracut bug fix and enhancement update 2016-05-10 22:56:39 UTC

Description Martin Hoyer 2016-04-06 06:33:36 UTC 
Description of problem:
Our server is using OCe10102-IM card for iSCSI SAN boot. With the RHEL-6.8-20160315.0 it cannot boot after installation.

Version-Release number of selected component (if applicable):
RHEL-6.8-20160315.0
  kernel-2.6.32-627.el6
  iscsi-initiator-utils-6.2.0.873-20.el6
  dracut-004-400.el6

Working well with:
RHEL-6.8-20160308.0
  kernel-2.6.32-621.el6
  iscsi-initiator-utils-6.2.0.873-19.el6
  dracut-004-406.el6

How reproducible:
100%

Steps to Reproduce:
1.install RHEL-6.8-20160315.0 or newer
2.check console log while booting

Actual results:

Expected results:


Additional info:
Comment 1 Martin Hoyer 2016-04-06 06:39:06 UTC 
Created attachment 1144114 [details]
console

Attachment with console log from both booting and not booting distros.
Comment 2 Martin Hoyer 2016-04-06 06:40:21 UTC 
Hello Harald,
could this be related to dracut?
Comment 5 Maurizio Lombardi 2016-04-06 11:12:25 UTC 
No changes in the be2iscsi driver between kernel-2.6.32-621 and kernel-2.6.32-627
Comment 6 Harald Hoyer 2016-04-06 11:29:37 UTC 
What was the kernel cmdline? Does it help, if you add "ip=ibft" ?
Comment 7 Harald Hoyer 2016-04-06 11:32:48 UTC 
dracut changed the behaviour:
If "iscsistart -N" fails, no "iscsistart -b" is tried.

Seems like this assumption is wrong?
Comment 8 Laurie Barry 2016-04-06 12:29:19 UTC 
This will impact all of our OEMs/customers (HP, Dell, Lenovo, FTS/FJJ, Hitachi, Huawei, EMC, NetApp, NEC, etc...).  

Can this be resolved for RHEL6.8?

thank you
Laurie
Comment 9 Martin Hoyer 2016-04-06 12:52:46 UTC 
(In reply to Harald Hoyer from comment #6)
> What was the kernel cmdline? Does it help, if you add "ip=ibft" ?
I've put ip=ibft to post installation cmd - same result.
Updating last working distro from dracut-004-400 to -406 and rebooting does not reproduce this problem.
Comment 10 Maurizio Lombardi 2016-04-06 13:14:19 UTC 
Martin can you try to update the last working distro to kernel-2.6.32-627.el6 too?
Comment 11 Martin Hoyer 2016-04-06 13:31:33 UTC 
(In reply to Martin Hoyer from comment #9)
> Updating last working distro from dracut-004-400 to -406 and rebooting does
> not reproduce this problem.
I forgot to rebuild initrd before. Rebuilding initrd after updating dracut to -406 indeed is causing this problem. Sorry for the confusion.
Comment 12 Maurizio Lombardi 2016-04-06 13:48:27 UTC 
(In reply to Harald Hoyer from comment #7)
> dracut changed the behaviour:
> If "iscsistart -N" fails, no "iscsistart -b" is tried.
> 
> Seems like this assumption is wrong?

I suspect (but I am not 100% sure yet) that this assumption is wrong.

I'll quote part of this bug report:
https://bugs.launchpad.net/ubuntu/+source/open-iscsi/+bug/1513254

------------
Right now, the following logic is used if you pass iscsi_auto as a kernel option:

modprobe iscsi_ibft
iscsistart -b

However, in a PXE boot environment, the interface initialized will be something like the "primary" interface of the system, probably not where your iscsi traffic is running.

The '-N' flag of iscsistart should also be used to configure the networking before attempting to create a session to the target.

so:

modprobe iscsi_ibft
iscsistart -N
iscsistart -b
------------

So, in certain cases, it's not necessary to run "iscsistart -N" to guarantee that "iscsistart -b" will succeed.
Comment 13 Harald Hoyer 2016-04-07 09:24:43 UTC 
Please test:
http://people.redhat.com/harald/downloads/dracut/dracut-004-409.el6/
Comment 14 Martin Hoyer 2016-04-07 13:53:50 UTC 
Created attachment 1144752 [details]
dracut-004-409.el6 boot

After Harald's update to dracut test version from comment 13, the machine boots successfully. Please see attached console log.
Comment 16 Martin Hoyer 2016-04-08 07:41:27 UTC 
Works well dracut-004-409.el6
Regression tests are passed on iSCSI boot machines.
Comment 18 errata-xmlrpc 2016-05-11 01:10:14 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.

https://rhn.redhat.com/errata/RHBA-2016-0954.html
Comment 19 Charles Rose (Dell) 2016-11-10 12:59:26 UTC 
*** Bug 1392411 has been marked as a duplicate of this bug. ***
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