Bug 714190

Summary: System Hang when there is smart error on IBM platform
Product: Red Hat Enterprise Linux 6 Reporter: RHEL Program Management <pm-rhel>
Component: kernelAssignee: Frantisek Hrbata <fhrbata>
Status: CLOSED ERRATA QA Contact: Red Hat Kernel QE team <kernel-qe>
Severity: urgent Docs Contact:
Priority: urgent    
Version: 6.1CC: coughlan, dhoward, eric.moore, fge, jwest, kashyap.desai, kzhang, pm-eus, rlary, sathya.prakash, syeghiay, thenzl
Target Milestone: rcKeywords: ZStream
Target Release: ---   
Hardware: All   
OS: Unspecified   
Whiteboard:
Fixed In Version: kernel-2.6.32-131.6.1.el6 Doc Type: Bug Fix
Doc Text:
A kernel panic in the mpt2sas driver could occur on an IBM system using a drive with SMART (Self-Monitoring, Analysis and Reporting Technology) issues. This was because the driver was sending an SEP request while the kernel was in the interrupt context, causing the driver to enter the sleep state. With this update, a fake event is not executed from the interrupt context, assuring the SEP request is properly issued.
Story Points: ---
Clone Of: Environment:
Last Closed: 2011-07-12 21:12:20 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 701951    
Bug Blocks:    

Description RHEL Program Management 2011-06-17 15:02:26 UTC
This bug has been copied from bug #701951 and has been proposed
to be backported to 6.1 z-stream (EUS).

Comment 6 xiali 2011-06-24 06:08:33 UTC
It's hard for us to find a IBM system with a disk having SMART issues, can kashyap or any partner help?

Comment 7 kashyap 2011-06-27 14:51:27 UTC
(In reply to comment #6)
> It's hard for us to find a IBM system with a disk having SMART issues, can
> kashyap or any partner help?

Adam, Same issue with LSI. We don't have required hw too. I see multiple BZ with same question. Shall we mark this as tested by customer once when it was exactly reproduced. Now difficult to create same setup.  

` kashyap

Comment 9 Martin Prpič 2011-07-12 11:37:04 UTC
    Technical note added. If any revisions are required, please edit the "Technical Notes" field
    accordingly. All revisions will be proofread by the Engineering Content Services team.
    
    New Contents:
A kernel panic in the mpt2sas driver could occur on an IBM system using a drive with SMART (Self-Monitoring, Analysis and Reporting Technology) issues. This was because the driver was sending an SEP request while the kernel was in the interrupt context, causing the driver to enter the sleep state. With this update, a fake event is not executed from the interrupt context, assuring the SEP request is properly issued.

Comment 10 errata-xmlrpc 2011-07-12 21:12:20 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 therefore 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/RHSA-2011-0928.html