A fix is available
APAR status
Closed as program error.
Error description
AIX may crash in the following stack with MODS enabled and while setting AIXC or NFS4 ACL. This can only happen on the systems which are having the APAR IV47117 and MODS enabled. (0)> dw xmdbg xmdbg+000000: 00000001 00000000 3FFFFFFF FFFFFFFC ........?....... (0)> dr r3 r3 : EEEE0000DA51B023 EEEE0000DA51B023 (0)> f pvthread+03DB00 STACK: [0001C040]abend_trap+000000 () [000DB2C8]xmdbg_error+000088 (??, ??, ??, ??) [00294338]check_free+000278 (??, ??, ??) [0028237C]validfault+00011C (??, ??, ??) [00280CEC]v_pfget+00038C (??, ??, ??, ??, ??, ??) [00279480]state_save_ret+000578 () ____ Exception (F00000002FF47600) ____ [0006AA7C].backt+000000 () [0006BEF0].vcs_movep_excp+000020 () [00361344]vmpcopy+000744 (F10001015175DC00, FFFFF00000000000, F00000002FF467C8, 0000060100000001, 0000000100000001, 0000000002E02660, 0000000000000000, 0000000000000000) [003629EC]vmfcopyin+0002CC (??, ??, ??, ??, ??, ??, ??, ??) [00361F18]vm_uiomove+000718 (??, ??, ??, ??) [003408D8]eaMapOut@AF43_5+000058 (??, ??, ??) [0033F2F4]j2_eav2_setxacl+000514 (??, ??, ??, ??, ??, ??) [0033E16C]j2_setxacl+0001CC (??, ??, ??, ??, ??, ??) [005FB788]vnop_setxacl_common+000088 (??, ??, ??, ??, ??, ??) [005FBB98]vnop_setxacl+0001D8 (??, ??, ??, ??, ??, ??) [008233C0]__chxacl+0002C0 (??, ??, ??, ??, ??, ??, ??, ??) [00003888]mfspurr_sc_flih01+0000E4 () [kdb_get_virtual_memory] no real storage @ 2FF203A8 [D029FEC0]D029FEC0 () [kdb_read_mem] no real storage @ FFFFFFFFFFF8D40
Local fix
Disable MODS
Problem summary
**************************************************************** * USERS AFFECTED: * Systems running the 6100-09 Technology Level with * bos.mp64 below 6.1.9.30 **************************************************************** * PROBLEM DESCRIPTION: * AIX may crash in the following stack with MODS enabled * and while setting AIXC or NFS4 ACL. * This can only happen on the systems which are having * the APAR IV47117 and MODS enabled. * (0)> dw xmdbg * xmdbg+000000: 00000001 00000000 3FFFFFFF FFFFFFFC * ........?....... * (0)> dr r3 * r3 : EEEE0000DA51B023 EEEE0000DA51B023 * (0)> f * pvthread+03DB00 STACK: * 0001C040 abend_trap+000000 () * 000DB2C8 xmdbg_error+000088 (??, ??, ??, ??) * 00294338 check_free+000278 (??, ??, ??) * 0028237C validfault+00011C (??, ??, ??) * 00280CEC v_pfget+00038C (??, ??, ??, ??, ??, ??) * 00279480 state_save_ret+000578 () * ____ Exception (F00000002FF47600) ____ * 0006AA7C .backt+000000 () * 0006BEF0 .vcs_movep_excp+000020 () * 00361344 vmpcopy+000744 (F10001015175DC00, * FFFFF00000000000, * F00000002FF467C8, 0000060100000001, 0000000100000001, * 0000000002E02660, * 0000000000000000, 0000000000000000) * 003629EC vmfcopyin+0002CC (??, ??, ??, ??, ??, ??, ??, * ??) * 00361F18 vm_uiomove+000718 (??, ??, ??, ??) * 003408D8 eaMapOut@AF43_5+000058 (??, ??, ??) * 0033F2F4 j2_eav2_setxacl+000514 (??, ??, ??, ??, ??, ??) * 0033E16C j2_setxacl+0001CC (??, ??, ??, ??, ??, ??) * 005FB788 vnop_setxacl_common+000088 (??, ??, ??, ??, ??, * ??) * 005FBB98 vnop_setxacl+0001D8 (??, ??, ??, ??, ??, ??) * 008233C0 __chxacl+0002C0 (??, ??, ??, ??, ??, ??, ??, * ??) * 00003888 mfspurr_sc_flih01+0000E4 () * kdb_get_virtual_memory no real storage @ 2FF203A8 * D029FEC0 D029FEC0 () * kdb_read_mem no real storage @ FFFFFFFFFFF8D40 **************************************************************** * RECOMMENDATION: * Install APAR IV70497. ****************************************************************
Problem conclusion
Corrected the code to write data within the allocated memory.
Temporary fix
Comments
6100-09 - use AIX APAR IV70497 7100-03 - use AIX APAR IV70710
APAR Information
APAR number
IV70497
Reported component name
AIX 610 STD EDI
Reported component ID
5765G6200
Reported release
610
Status
CLOSED PER
PE
YesPE
HIPER
NoHIPER
Submitted date
2015-03-03
Closed date
2015-03-06
Last modified date
2015-11-22
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 U861403
UP15/11/22 I 1000
PTF to Fileset Mapping
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Document Information
Modified date:
17 December 2021