Bug 236763 - Inconsistent udev bug when using OpenIB stack on RT kernel
Inconsistent udev bug when using OpenIB stack on RT kernel
Status: CLOSED CURRENTRELEASE
Product: Red Hat Enterprise MRG
Classification: Red Hat
Component: realtime-kernel (Show other bugs)
1.0
All Linux
medium Severity medium
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Assigned To: Doug Ledford
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Depends On:
Blocks:
  Show dependency treegraph
 
Reported: 2007-04-17 11:48 EDT by Gurhan Ozen
Modified: 2013-11-03 20:32 EST (History)
1 user (show)

See Also:
Fixed In Version: -34
Doc Type: Bug Fix
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Last Closed: 2007-10-02 15:41:34 EDT
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Description Gurhan Ozen 2007-04-17 11:48:50 EDT
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.  
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Actual results:


Expected results:


Additional info:
Comment 1 Doug Ledford 2007-07-10 16:51:50 EDT
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 10:45:39 EDT
applied; testing

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