A fix is available
APAR status
Closed as program error.
Error description
cron has been observed to either core dump or hang. The cores can occur in a variety of functions: el_add, el_remove, readcron, rm_ctevents, and possibly others. The hangs will tend to happen in the el_add and el_remove functions, but could occur elsewhere. The particular instance where this was noticed was when there was an invalid entry in a user's crontab, and that user updated their crontab. It will not happen with every update of the crontab, and will not happen with all types of invalid entries. The code that causes the core/hang is in a function that cron uses to send mail to the user to notify them of the invalid entry; although this is the only situation the core/hang has currently been observed, it could potentially happen other times that cron sends mail to a user.
Local fix
WORKAROUND: remove any invalid entries from all user's crontabs.
Problem summary
CRON CORE DUMPS OR HANGS
Problem conclusion
Avoid the cron core dump by correcting a scenario where a pointer could have still pointed to memory that was just freed
Temporary fix
Comments
5300-08 - use AIX APAR IZ66355 5300-09 - use AIX APAR IZ69439 5300-10 - use AIX APAR IZ69511 5300-11 - use AIX APAR IZ66507 5300-12 - use AIX APAR IZ66482 6100-01 - use AIX APAR IZ75405 6100-02 - use AIX APAR IZ71752 6100-03 - use AIX APAR IZ71686 6100-05 - use AIX APAR IZ66518 6100-04 - use AIX APAR IZ66489 6100-05 - use AIX APAR IZ66518 6100-06 - use AIX APAR IZ67039 7100-00 - use AIX APAR IZ86079
APAR Information
APAR number
IZ71686
Reported component name
AIX 610 STD EDI
Reported component ID
5765G6200
Reported release
610
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Submitted date
2010-03-01
Closed date
2010-03-01
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 610 STD EDI
Fixed component ID
5765G6200
Applicable component levels
R610 PSY U831238
UP10/04/22 I 1000
PTF to Fileset Mapping
U831238 bos.rte.cron 6.1.3.3
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Document Information
Modified date:
28 March 2013