A fix is available
APAR status
Closed as program error.
Error description
A multi-threaded process that calls dlopen/load/dlclose/unload in one thread while opening its own /proc/<pid>/as file with write permission in another thread can deadlock the process and hang the system.
Local fix
Problem summary
A multi-threaded process that calls dlopen/load/dlclose/unload in one thread while opening its own /proc/<pid>/as file with write permission in another thread can deadlock the process and hang the system.
Problem conclusion
Fix locking code for a thread opening its own /proc/<pid>/as file.
Temporary fix
Comments
APAR Information
APAR number
IZ80634
Reported component name
AIX 610 STD EDI
Reported component ID
5765G6200
Reported release
610
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Submitted date
2010-07-20
Closed date
2010-07-20
Last modified date
2013-03-28
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
IZ80701 IZ82520 IZ83858 IZ83887 IZ83933 IZ84123 IZ90641 IZ90643
IZ90910
Fix information
Fixed component name
AIX 610 STD EDI
Fixed component ID
5765G6200
Applicable component levels
R610 PSY U833973
UP11/05/13 I 1000
PTF to Fileset Mapping
U833973 bos.mp64 6.1.6.15
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Document Information
Modified date:
28 March 2013