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MA46049 - LIC-OTHER-SRCB6005120-INCORROUT Concurrent Maintenance

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 APAR (Authorized Program Analysis Report)

Abstract

LIC-OTHER-SRCB6005120-INCORROUT Concurrent Maintenance

Error Description

While attempting concurrent maintenance against a failing slot,
the concurrent maintenance fails.  This could be actions such as
a Dynamic Logical Partitioning remove, a concurrent maintenance
repair, or a power off of a slot.                              

Problem Summary

****************************************************************
* PROBLEM: (MA46049) Licensed Program = 5770999 for i 7.1,     *
*                                        i 7.2, and i 7.3      *
*           Crash/Hang Requiring an IPL to Recover.            *
*            SRC B600 5120                                     *
****************************************************************
* USERS AFFECTED: All IBM i operating system users.            *
****************************************************************
* RECOMMENDATION: Apply LIC PTF MF63053 for i 7.1.             *
*                 Apply LIC PTF MF63054 for i 7.2.             *
*                 Apply LIC PTF MF63055 for i 7.3.             *
****************************************************************
While attempting concurrent maintenance against a failing slot,
the concurrent maintenance fails.  This could be an action such
as a Dynamic Logical Partitioning remove, a concurrent          
maintenance repair, or a power off of a slot.                  

Problem Conclusion

While the concurrent maintenance action was shutting down the  
device, error recovery was still using it.  This caused an      
exception in a critical path.  This timing window is very small.
 In order for this problem to occur, the hardware essentially  
must fail repeatedly, failing again every time recovery        
completes.  The serialization between concurrent maintenance and
error recovery code paths has been enhanced.                    

Temporary Fix

                       *********                                
                       * HIPER *                                
                       *********                                

Comments

Circumvention


PTFs Available

R710 MF63053 PTF Cover Letter   7192
R720 MF63054 PTF Cover Letter   7068
R730 MF63055 PTF Cover Letter   7061

Affected Modules

         
         

Affected Publications

Summary Information

Status............................................ CLOSED PER
HIPER........................................... Yes
Component.................................. 9400DG300
Failing Module.......................... RCHMGR
Reported Release................... R710
Duplicate Of..............................




System i Support

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Document Information

Modified date:
28 July 2017