A fix is available
APAR status
Closed as program error.
Error description
**************************************************************** * USERS AFFECTED: * Systems running the AIX 7200-01 Technology Level * with bos.mp64 between and including the 7.2.1.0 and 7.2.1.3 * levels. **************************************************************** * ERROR DESCRIPTION: * After removing large files in jfs2, on AIX 7200-01, the * system may crash when an inode is re-used before garbage * collection is completed. * * The stack trace will be similar to: * Ý003E4728¨iUnlinkZombie+0000A8 (...) * Ý003E3B68¨zombieGarbageXT+000048 (..) * Ý003E38D0¨zombieGarbageTrunc+0000D0 (...) * Ý002EA670¨procentry+000010 (...) * * There is also potential data loss if this process does * not assert and continues garbage collection of the * re-used inode. * * With the default system settings, 'large files' may be any * files larger than around 15.8 MB. Removing files larger * than this utilizes the background garbage collection and * opens up the possibility of encountering this bug. ************************************************************** * RECOMMENDATION: * Install APAR IV93320. * Prior to fix availability, an interim fix is available from * either * ftp://aix.software.ibm.com/aix/ifixes/iv93320/ * https://aix.software.ibm.com/aix/ifixes/iv93320/ * The ifixes can be installed using AIX Live Update. * The ifixes can also be installed using emgr's Concurrent * Update. * If neither of these options are used, installation of these * fixes requires a reboot. ****************************************************************
Local fix
Problem summary
A system crash with the stack: 003E4728 iUnlinkZombie+0000A8 (...) 003E3B68 zombieGarbageXT+000048 (..) 003E38D0 zombieGarbageTrunc+0000D0 (...) 002EA670 procentry+000010 (...) Note that if data corruption occurs, this may manifest itself in unpredictable ways.
Problem conclusion
Disable the new background unlink processing for large files.
Temporary fix
********* * HIPER * *********
Comments
7200-01 - use AIX APAR IV93320
APAR Information
APAR number
IV93320
Reported component name
AIX V7.2
Reported component ID
5765CD200
Reported release
720
Status
CLOSED PER
PE
YesPE
HIPER
YesHIPER
Submitted date
2017-02-13
Closed date
2017-04-03
Last modified date
2017-09-29
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 V7.2
Fixed component ID
5765CD200
Applicable component levels
R720 PSY U873438
UP17/09/21 I 1000
PTF to Fileset Mapping
U873438 bos.mp64 7.2.1.4
[{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SSVEF8","label":"AIX 7.2 Enterprise Edition"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"720","Edition":"","Line of Business":{"code":"LOB08","label":"Cognitive Systems"}},{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SG11S","label":"AIX 7.2 HIPERS, APARs and Fixes"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"720","Edition":"","Line of Business":{"code":"","label":""}}]
Document Information
Modified date:
29 September 2017