A fix is available
APAR status
Closed as program error.
Error description
In a rare case, if the system has lot of memory, many CPUs and is having lot of paging activity, the system may hang with one of the CPU's stack as (22)> f pvthread+001800 STACK: [0012B014]addrepage+000258 (F100070009000000 [??]) [0012DB94]v_pageout+000100 (??, ??, ??) [00174398]v_steal+00046C (??, ??, ??, ??) [00175534]v_steal_lrulist+0003B8 (??) [00175854]v_pass2+0000D8 (??, ??) [0017621C]v_fblru_scanlist+0000B4 (??) [0017263C]v_lru+000298 (??) [00173D30]v_memp_lru+0001C0 (??) [0024EAFC]v_prememp_lru+000020 (??) [002EEBF4].backt+000088 ()
Local fix
There is no workaround of the issue. System would need to be rebooted.
Problem summary
A system hang with one cpu stuck in addrepage().
Problem conclusion
The addrepage code is modified such that a process will detect that it lost the race for an entry, and it will loop until it finds an unused entry.
Temporary fix
Comments
5300-09 - use AIX APAR IZ59687 5300-10 - use AIX APAR IZ82561 5300-11 - use AIX APAR IZ82386 5300-12 - use AIX APAR IZ81664 6100-02 - use AIX APAR IZ79443 6100-03 - use AIX APAR IZ79435 6100-04 - use AIX APAR IZ78922 6100-05 - use AIX APAR IZ78969 6100-06 - use AIX APAR IZ74559 7100-00 - use AIX APAR IZ84451
APAR Information
APAR number
IZ59687
Reported component name
AIX 5.3
Reported component ID
5765G0300
Reported release
530
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Submitted date
2009-08-31
Closed date
2010-04-09
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:
IZ74559 IZ78922 IZ78969 IZ79435 IZ79443 IZ81664 IZ82386 IZ82561
IZ84451
Fix information
Fixed component name
AIX 5.3
Fixed component ID
5765G0300
Applicable component levels
R530 PSY U839462
UP10/09/21 I 1000
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Document Information
Modified date:
28 March 2013