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
5300-10 - use AIX APAR IZ90910 5300-11 - use AIX APAR IZ90643 5300-12 - use AIX APAR IZ90641 6100-02 - use AIX APAR IZ84123 6100-03 - use AIX APAR IZ83887 6100-04 - use AIX APAR IZ83933 6100-05 - use AIX APAR IZ83858 6100-06 - use AIX APAR IZ80701 6100-06 - use AIX APAR IZ80634 7100-00 - use AIX APAR IZ82520
APAR Information
APAR number
IZ82520
Reported component name
AIX V7.1
Reported component ID
5765H4000
Reported release
710
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Submitted date
2010-08-10
Closed date
2010-08-10
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:
Fix information
Fixed component name
AIX V7.1
Fixed component ID
5765H4000
Applicable component levels
R710 PSY U833014
UP11/05/12 I 1000
PTF to Fileset Mapping
U833014 bos.mp64 7.1.0.15
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Document Information
Modified date:
28 March 2013