Bug 236763 - Inconsistent udev bug when using OpenIB stack on RT kernel
Summary: Inconsistent udev bug when using OpenIB stack on RT kernel
Keywords:
Status: CLOSED CURRENTRELEASE
Alias: None
Product: Red Hat Enterprise MRG
Classification: Red Hat
Component: realtime-kernel
Version: 1.0
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
: ---
Assignee: Doug Ledford
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2007-04-17 15:48 UTC by Gurhan Ozen
Modified: 2013-11-04 01:32 UTC (History)
1 user (show)

Fixed In Version: -34
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2007-10-02 19:41:34 UTC
Target Upstream Version:
Embargoed:

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Description Gurhan Ozen 2007-04-17 15:48:50 UTC 
Description of problem:
  So I was trying to test OpenIB on RT kernel using the kernel at:
porkchop.redhat.com/brewroot/packages/kernel-rt/2.6.20/19.el5rt/

  However after installing OpenIB packages, on at least one occasion, I got the
following error:

   Starting udev: BUG: spinlock lockup on CPU#3, softirq-tasklet/48, 
ffff81999999d4c8

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

2.6.20-19.el5rt

How reproducible:
Not reliably:( It happened on both machine last night, but when i reboot them
today, i don't get the same issue. Will keep an eye on it to figure out if there
is a reliable way to reproducing it. 

Steps to Reproduce:
1.  
2.
3.
  
Actual results:


Expected results:


Additional info:
Comment 1 Doug Ledford 2007-07-10 20:51:50 UTC 
This should likely be resolved by the updated OFED patch I used in the latest rt
kernel.  The patches have been mailed to Clark Williams for inclusion in his
official rt kernel builds.
Comment 2 Clark Williams 2007-07-26 14:45:39 UTC 
applied; testing
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