Bug 430130 - iscsi modules need to set the module reference in the host template
iscsi modules need to set the module reference in the host template
Product: Red Hat Enterprise Linux 5
Classification: Red Hat
Component: kernel (Show other bugs)
All Linux
low Severity low
: rc
: ---
Assigned To: Mike Christie
Martin Jenner
Depends On:
  Show dependency treegraph
Reported: 2008-01-24 13:05 EST by Mike Christie
Modified: 2008-05-21 11:07 EDT (History)
1 user (show)

See Also:
Fixed In Version: RHBA-2008-0314
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Last Closed: 2008-05-21 11:07:25 EDT
Type: ---
Regression: ---
Mount Type: ---
Documentation: ---
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

Attachments (Terms of Use)
patch to set module reference (1.19 KB, patch)
2008-01-24 13:59 EST, Mike Christie
no flags Details | Diff

  None (edit)
Description Mike Christie 2008-01-24 13:05:56 EST
Description of problem:

If the iscsi modules do not set the module reference in the scsi host template
then if iscsi is shutdown and other entities are holding a reference then they
will be referencing bad memory.

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

How reproducible:


Steps to Reproduce:
1. start iscsi
2. start multipath
3. stop iscsi 
4. stop multipath and get oops

Actual results:

You get an oops

Expected results:

should not get a oops and the system should gracefully handle the out of order

Additional info:

Patch is upstream here:

Comment 2 RHEL Product and Program Management 2008-01-24 13:07:22 EST
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
Comment 3 Tom Coughlan 2008-01-24 13:20:28 EST
Mike says this is not critical for 1st beta release. It should go in an early 
Comment 4 Mike Christie 2008-01-24 13:59:40 EST
Created attachment 292841 [details]
patch to set module reference

Here is the patch I am sending to rh kernel. It is a really simple two liner.
Comment 6 Don Zickus 2008-01-30 12:02:01 EST
in 2.6.18-76.el5
You can download this test kernel from http://people.redhat.com/dzickus/el5
Comment 9 errata-xmlrpc 2008-05-21 11:07:25 EDT
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.


Note You need to log in before you can comment on or make changes to this bug.