A fix is available
APAR status
Closed as program error.
Error description
*************************************************************** * USERS AFFECTED: * Systems running the 7100-03 Technology Level * with bos.mp64 below the 7.1.3.45 level. *************************************************************** * PROBLEM DESCRIPTION: * If a process tries to get psinfo on itself from a prochcall * resource handler during exec, that process will end up * stuck sleeping in prUblockSegAttach forever, waiting for * SEXECING_P to clear. This will cause key system daemons to * eventually hang, waiting on a lock held by that process. * This will lead to the entire system to be effectively hung. * * This has been commonly encountered on systems running * Symantec VCS 6.0.xxx or custom kernel extensions that * register a prochcall resource handler during exec. *************************************************************** * RECOMMENDATION: * An interim fix is available from either * ftp://aix.software.ibm.com/aix/ifixes/iv66484/ * https://aix.software.ibm.com/aix/ifixes/iv66484/ ***************************************************************
Local fix
Problem summary
*************************************************************** * USERS AFFECTED: * Systems running the 7100-03 Technology Level * with bos.mp64 below the 7.1.3.45 level. *************************************************************** * PROBLEM DESCRIPTION: * If a process tries to get psinfo on itself from a prochcall * resource handler during exec, that process will end up * stuck sleeping in prUblockSegAttach forever, waiting for * SEXECING_P to clear. This will cause key system daemons to * eventually hang, waiting on a lock held by that process. * This will lead to the entire system to be effectively hung. * * This has been commonly encountered on systems running * Symantec VCS 6.0.xxx or custom kernel extensions that * register a prochcall resource handler during exec. *************************************************************** * RECOMMENDATION: * An interim fix is available from either * ftp://aix.software.ibm.com/aix/ifixes/iv66484/ * https://aix.software.ibm.com/aix/ifixes/iv66484/ ***************************************************************
Problem conclusion
Avoid dead lock by properly serialize the opertion of holding the lock and posting event.
Temporary fix
********* * HIPER * *********
Comments
APAR Information
APAR number
IV66484
Reported component name
AIX V7.1
Reported component ID
5765H4000
Reported release
710
Status
CLOSED PER
PE
NoPE
HIPER
YesHIPER
Submitted date
2014-10-31
Closed date
2015-01-05
Last modified date
2015-05-22
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
AIX V7.1
Fixed component ID
5765H4000
Applicable component levels
R710 PSY U865837
UP15/05/19 I 1000
PTF to Fileset Mapping
U865837 bos.mp64 7.1.3.45
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Document Information
Modified date:
22 May 2015