PM99545: LOAD BALANCER MIGHT CRASH OR HANG ON MICROSOFT WINDOWS WITH MULTI-PROCESS MACHINES.

Fixes are available

APAR status

Closed as program error.

Error description

Load Balancer might crash or hang on Microsoft Windows with
multi-process machines.

Local fix

Problem summary

****************************************************************
* USERS AFFECTED:  IBM WebSphere Application Server Load       *
*                  Balancer for ipv4 users on Microsoft        *
*                  Windows operating systems                   *
****************************************************************
* PROBLEM DESCRIPTION: When using the Load Balancer for ipv4   *
*                      on Microsoft Windows, you may           *
*                      experience a blue screen crash or a     *
*                      hang                                    *
****************************************************************
* RECOMMENDATION:                                              *
****************************************************************
The Load Balancer for ipv4 can deadlock with each processor
waiting for the other. This issue can be seen as a system
freeze or you might see a blue screen crash. Although the
situation does not occur often, the deadlock  circumstances
depend on common network activity and if you are running the
Load Balancer for ipv4 on Microsoft Windows operating systems
and use a multi-processor machine, you should apply this fix.

Problem conclusion

Code was modified such that the deadlock can not occur but
releasing a lock before freeing memory associated with an ARP
request.


Fix levels:
8.0.0.8
8.5.5.2

Temporary fix

Comments

APAR Information

APAR number
PM99545
Reported component name
WEBS LOAD BALAN
Reported component ID
5724H8811
Reported release
850
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2013-10-21
Closed date
2013-10-23
Last modified date
2013-10-23

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
WEBS LOAD BALAN
Fixed component ID
5724H8811

Applicable component levels

R800 PSY
UP
R850 PSY
UP

[{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSEQTP","label":"WebSphere Application Server"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"850","Line of Business":{"code":"LOB45","label":"Automation"}}]

Document Information

Modified date:
28 April 2022

Tips

PM99545: LOAD BALANCER MIGHT CRASH OR HANG ON MICROSOFT WINDOWS WITH MULTI-PROCESS MACHINES.

Fixes are available

Subscribe

APAR status

Closed as program error.

Error description

Local fix

Problem summary

Problem conclusion

Temporary fix

Comments

APAR Information

APAR number

Reported component name

Reported component ID

Reported release

Status

PE

HIPER

Special Attention

Submitted date

Closed date

Last modified date

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

Fixed component ID

Applicable component levels

R800 PSY

R850 PSY

Document Information

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