IBM Support

IT27760: MEMORY THREAD CAN REMAIN IN A READY STATE BECAUSE IT CANNOT BINDTO THE VP AND RESULTS IN VPCACHE TO GROW

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APAR status

  • Closed as returned (APAR cannot be resolved without additional info from IBM or customer.)

Error description

  • In case a CPU VP got stuck for whatever reason the memory thread
    is stuck (ready) with that stack
    
    Stack for thread: 43 memory
    
    0x000000010007b918 (oninit)yield_processor_mvp
    0x000000010007cbcc (oninit)mt_yield
    0x000000010007d0a0 (oninit)mt_bind
    0x00000001000888f8 (oninit)mt_purge_cpu_vp_caches
    0x000000010004a538 (oninit)memory_thread
    0x0000000100abce70 (oninit)th_init_initgls
    0x00000001017002a8 (oninit)startup
    
    Then vpcache memory isn't cleaned properly which can lead to out
    of shared memory after a while
    

Local fix

Problem summary

Problem conclusion

Temporary fix

Comments

  • Additional diagnostic information from the source environment
    was needed to investigate further, but never provided.
    

APAR Information

  • APAR number

    IT27760

  • Reported component name

    INFORMIX SERVER

  • Reported component ID

    5725A3900

  • Reported release

    C10

  • Status

    CLOSED RET

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2019-01-14

  • Closed date

    2022-04-26

  • Last modified date

    2022-04-26

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

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

Fix information

Applicable component levels

[{"Line of Business":{"code":"LOB10","label":"Data and AI"},"Business Unit":{"code":"BU053","label":"Cloud \u0026 Data Platform"},"Product":{"code":"SSGU8G","label":"Informix Servers"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"C10"}]

Document Information

Modified date:
27 April 2022