A fix is available
APAR status
Closed as program error.
Error description
This problem occurs after APAR IZ83495 "multiple threads in __modfini() during exit causes coredump" is applied; attaching with dbx and generating a stack trace will show that the exit() function has been entered twice: pthread_yield() at 0x90000000048589c exit(??) at 0x90000000007c040 ibm_efm_exit() at 0x100004d04 ix_sigcleanup() at 0x100004d48 ix_sigproc() at 0x10000ca2c efsignal_sigHup() at 0x10000c650 usl_exit_fini_mods(??) at 0x9fffffff0002ad0 __modfini64() at 0x900000000045dbc exit(??) at 0x90000000007c1c0 : :
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: * Users of the 6100-05 Technology Level with the bos.rte.libc * fileset at the 6.1.5.6 or 6.1.5.7 level. **************************************************************** * PROBLEM DESCRIPTION: * When users login window terminates, processes remain active * consuming resources and causing performance issues. These * SIGHUP'd processes hang repeatedly calling pthread_yield(). **************************************************************** * RECOMMENDATION: * Install APAR IV13519. ****************************************************************
Problem conclusion
Call yield loop in exit() only for multi-threaded processes.
Temporary fix
********* * HIPER * *********
Comments
APAR Information
APAR number
IV13519
Reported component name
AIX 610 STD EDI
Reported component ID
5765G6200
Reported release
610
Status
CLOSED PER
PE
YesPE
HIPER
YesHIPER
Submitted date
2012-01-19
Closed date
2012-01-19
Last modified date
2013-03-26
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
U850943
Fix information
Fixed component name
AIX 610 STD EDI
Fixed component ID
5765G6200
Applicable component levels
R610 PSY U850943
UP12/03/15 I 1000
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Document Information
Modified date:
26 March 2013