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IZ94911: ISSUES WITH GETCWD() INTERFACE APPLIES TO AIX 6100-07

A fix is available

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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

    IZ94911

  • Reported component name

    AIX 610 STD EDI

  • Reported component ID

    5765G6200

  • Reported release

    610

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Submitted date

    2011-02-10

  • Closed date

    2011-02-10

  • Last modified date

    2013-03-24

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

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

    IZ95132 U848306

Fix information

  • Fixed component name

    AIX 610 STD EDI

  • Fixed component ID

    5765G6200

Applicable component levels

  • R610 PSY U848306

       UP11/10/25 I 1000

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Document Information

Modified date:
24 March 2013