IBM Support

IZ95132: ISSUES WITH GETCWD() INTERFACE APPLIES TO AIX 7100-01

A fix is available

Subscribe

You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • getwd() has functional and performance issue with the lstat64()
    call. The lstat64() calls that it makes while going across FS
    boundary is expensive and if it is within a NFS FS. then the
    call will hang if server is not up.
    

Local fix

Problem summary

  • getwd() has functional and performance issue with the lstat64()
    call. The lstat64() calls that it makes while going across FS
    boundary is expensive and if it is within a NFS FS. then the
    call will hang if server is not up.
    

Problem conclusion

  • instead of making lstat64() call, it will make a kernel call
    to get the lowest mounted over vnode's inode number and then
    match it against parent's dirent
    

Temporary fix

Comments

  • 6100-07 - use AIX APAR IZ94911
    7100-01 - use AIX APAR IZ95132
    

APAR Information

  • APAR number

    IZ95132

  • Reported component name

    AIX V7.1

  • Reported component ID

    5765H4000

  • Reported release

    710

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Submitted date

    2011-02-15

  • Closed date

    2011-02-15

  • Last modified date

    2013-03-24

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

    IZ94911

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

    U847864

Fix information

  • Fixed component name

    AIX V7.1

  • Fixed component ID

    5765H4000

Applicable component levels

  • R710 PSY U847864

       UP11/10/12 I 1000

[{"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":"710","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":"710","Edition":"","Line of Business":{"code":"LOB08","label":"Cognitive Systems"}},{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SG11R","label":"AIX 7.1 HIPERS, APARs and Fixes"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"710","Edition":"","Line of Business":{"code":"","label":""}}]

Document Information

Modified date:
24 March 2013