IJ58299: AWK USING STRING FUNCTIONS ON RECORD THEN ON FIELD LEAK

APAR status

• Closed as program error.

Error description

• example of awk command that will leak :
  dd if=/dev/random|od -x|awk
  '{gsub("a","z");$2="ab";print}'
  will return error like :
  awk: Internal software error in the tostring function
  on...
  It might fail also with error :
  awk: 0602-561 There is not enough memory available now.
  
  It can happen when using any string function instead of
  gsub().
  

Local fix

Problem summary

• AWK scripts using gsub() or field assignments fail with
  memory exhaustion when processing large files. The process is
  killed with "Out of Memory" error.
  

Problem conclusion

• The AWK memory management is corrected to properly free
  previously allocated memory during record rebuild operations.
  This prevents memory leaks.
  

Temporary fix

Comments

APAR Information

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

  IJ57601

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

Fix information

• Fixed component name

  AIX V7.3

• Fixed component ID

  5765CD300

Applicable component levels