IBM Support

IV20880: SYSTEM HANGS OR CRASHES WHEN APP USES SHARED SYMTAB CAPABILITY. APPLIES TO AIX 6100-07

A fix is available

Obtain the fix for this APAR.

Subscribe

You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • This problem requires use of shared symbol table
and has been seen on AIX 6.1 TL7 and 7.1 TL1
when using Oracle 11gR2 with on-line patching.
This includes versions  11.2.0.2 / 11.2.0.3 with
Oracle Patch 13443029.
.
Two issues could occur:
.
System crashes in shlap_request()
pvthread+070200 STACK:
￭001DEBC8shlap_request+0000A8
(0000000000000000,0000000040000000 ￭??)
￭001DF930shlap_shared_symtab+0001D0 (??, ??, ??)
.
OR
.
System hangs in ld_usecount()
pvthread+07A500 STACK:
￭0063FEE8ld_usecount+000928 (0000000000000000 ￭??)
￭001E2490kexitx+001270 (??)

Local fix

  • Specifying the LDR_CNTRL=SHARED_SYMTAB=N option prevents
the system from creating
a shared symbol table for a 64-bit program. This option
overrides the
AOUT_SHR_SYMTAB flag in the XCOFF auxiliary header.

Problem summary

  • ****************************************************************
* USERS AFFECTED:
* Systems running the 6100-07 Technology Level.
****************************************************************
* PROBLEM DESCRIPTION:
* This problem requires use of shared symbol table and has been
* seen on AIX 6.1 TL7 and 7.1 TL1 when using Oracle 11gR2 with
* on-line patching.  This includes versions 11.2.0.2 / 11.2.0.3
* with Oracle Patch 13443029.
*
* Two issues could occur:
*
* System crashes in shlap_request()
* pvthread+070200 STACK:
*  001DEBC8 shlap_request+0000A8
* (0000000000000000,0000000040000000  ?? )
*  001DF930 shlap_shared_symtab+0001D0 (??, ??, ??)
*
* OR
*
* System hangs in ld_usecount()
* pvthread+07A500 STACK:
*  0063FEE8 ld_usecount+000928 (0000000000000000  ?? )
*  001E2490 kexitx+001270 (??)
****************************************************************
* RECOMMENDATION:
* Install APAR IV20880.
*
* Prior to APAR availability, an inerim fix is available from:
* ftp://public.dhe.ibm.com/aix/ifixes/iv20880/
*
* Specifying the LDR_CNTRL=SHARED_SYMTAB=N option prevents the
* system from creating a shared symbol table for a 64-bit
* program. This option overrides the AOUT_SHR_SYMTAB flag in
* the XCOFF auxiliary header.
****************************************************************

Problem conclusion

  • Fix serialization problems with the shared symbol table
capability.

Temporary fix

  • *********
* HIPER *
*********

Comments

  • 



APAR Information




    

  • APAR number
    IV20880
    • 

  • Reported component name
    AIX 610 STD EDI
    • 

  • Reported component ID
    5765G6200
    • 

  • Reported release
    610
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    YesPE
    • 

  • HIPER
    YesHIPER
    • 

  • Submitted date
    2012-05-09
    • 

  • Closed date
    2012-06-05
    • 

  • Last modified date
    2013-04-09
    • 





    

  • APAR is sysrouted FROM one or more of the following:
    

    • 

  • APAR is sysrouted TO one or more of the following:
    

    
IV21116 IV21846 IV21878
    

    • 



Fix information


    

  • Fixed component name
    AIX 610 STD EDI
    • 

  • Fixed component ID
    5765G6200
    • 



Applicable component levels


    

  • R610  PSY  U850425
       UP12/07/16  I  1000
    • 



PTF to Fileset Mapping








      
              
                            

              

              [{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SSMV87","label":"AIX 6.1 Enterprise Edition"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"610","Edition":"","Line of Business":{"code":"LOB08","label":"Cognitive Systems"}},{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SSMVAX","label":"AIX Express Edition"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"610","Edition":"","Line of Business":{"code":"LOB08","label":"Cognitive Systems"}},{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SSAUMY","label":"IBM AIX Enterprise Edition"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"610","Edition":"","Line of Business":{"code":"","label":""}},{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SG11Q","label":"AIX 6.1 HIPERS, APARs and Fixes"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"610","Edition":"","Line of Business":{"code":"","label":""}}]
              

                          

          
 
        

      

    

      

        

          

            
Document Information


            

            


                        

            Modified date:
            

            09 April 2013
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
Page Feedback