Bug 204281 - rmmod cifs leads to kernel panic
Summary: rmmod cifs leads to kernel panic
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 4
Classification: Red Hat
Component: kernel
Version: 4.4
Hardware: i386
OS: Linux
medium
medium
Target Milestone: ---
: ---
Assignee: Jose Plans
QA Contact: Brian Brock
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2006-08-28 08:10 UTC by Sirius Rayner-Karlsson
Modified: 2007-11-17 01:14 UTC (History)
2 users (show)

Fixed In Version: RHBA-2007-0304
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2007-05-08 03:26:57 UTC
Target Upstream Version:
Embargoed:


Attachments (Terms of Use)
Screen dump of panic (13.53 KB, image/png)
2006-08-28 08:10 UTC, Sirius Rayner-Karlsson
no flags Details


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2007:0304 0 normal SHIPPED_LIVE Updated kernel packages available for Red Hat Enterprise Linux 4 Update 5 2007-04-28 18:58:50 UTC
Samba Project 3015 0 None None None Never

Description Sirius Rayner-Karlsson 2006-08-28 08:10:26 UTC
Description of problem:
  When mounting and then unmounting a CIFS file system, and subsequently quickly
issuing 'rmmod cifs' - the system will hang solid after a few seconds.

Version-Release number of selected component (if applicable):
RHEL4.4, kernel 2.6.9-42, samba 3.0.10-1.4E.9

How reproducible:
Very, can reproduce it at will.

Steps to Reproduce:
1. Configure samba and a share
2. mount said share (mount -t cifs //localhost/share /mnt/share)
3. umount /mnt/share
4. rmmod cifs
  
Actual results:
Total system hang after a few seconds

Expected results:
System working normally

Additional info:
Attaching screen capture of crash

Comment 1 Sirius Rayner-Karlsson 2006-08-28 08:10:27 UTC
Created attachment 135028 [details]
Screen dump of panic

Comment 5 Jason Baron 2006-09-14 16:01:26 UTC
committed in stream U5 build 42.10. A test kernel with this patch is available
from http://people.redhat.com/~jbaron/rhel4/


Comment 6 RHEL Program Management 2006-10-12 23:17:04 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 7 Jay Turner 2006-10-17 15:35:37 UTC
QE ack for RHEL4.5.

Comment 10 Red Hat Bugzilla 2007-05-08 03:26:57 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


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