IV20279: INCORRECT LOOP OPTIMIZATION FROM JIT CAUSING A CRASH

Subscribe to this APAR

By subscribing, you receive periodic emails alerting you to the status of the APAR, along with a link to the fix after it becomes available. You can track this item individually or track all items by product.

Notify me when this APAR changes.

Notify me when an APAR for this component changes.

APAR status

  • Closed as program error.

Error description

  • Error Message: N/A
    .
    Stack Trace: N/A
    .
    

Local fix

  • The problem can be avoided by using the option
    
    -Xjit:disableLoopVersioner
    

Problem summary

  • The problem is caused when the JIT compiler incorrectly moves a
    computation outside a loop.
    

Problem conclusion

  • This defect will be fixed in:
    6.0.1 SR2
    7.0.0 SR1
    .
    The JIT compiler has been updated to prevent the incorrect
    behaviour when performing a particular loop optimization.
    

Temporary fix

Comments

APAR Information

  • APAR number

    IV20279

  • Reported component name

    JIT

  • Reported component ID

    620700124

  • Reported release

    260

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2012-04-26

  • Closed date

    2012-04-26

  • Last modified date

    2012-05-03

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

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

Fix information

  • Fixed component name

    JIT

  • Fixed component ID

    620700124

Applicable component levels

  • R260 PSY

       UP



Rate this page:

(0 users)Average rating

Add comments

Document information


More support for:

Runtimes for Java Technology
Just In Time (JIT) Compiler

Software version:

260

Reference #:

IV20279

Modified date:

2012-05-03

Translate my page

Machine Translation

Content navigation