A fix is available
APAR status
Closed as program error.
Error description
AIX NFSv3 server could crash with the following stack: (17)> f pvthread+2AC300 STACK: [04B37D60]lockfh_walk_vnodes@AF80_7+000080 (0000000000000000, 496E616374697661 [??]) [0076BE90]vn_search+000090 (??, ??, ??) [00014F50].kernel_add_gate_cstack+000030 () [04B37C70]lockfh_walk_vfs@AF79_8+000030 (??, ??) [0076CFB4]vfs_search+000094 (??, ??) [00014F50].kernel_add_gate_cstack+000030 () [04B37BE4]unlock_lockmgr_granted@AF78_55+000024 (??, ??) [04B43688]lm_unlock_client+0000E8 (??) [04B45554]lm_free_all+000054 (??, ??, ??, ??) [04B48538]lm_nlm4_dispatch+000438 (??, ??) [049A0C78]svc_getreq+0009B8 (??) [0024AD9C]threadentry+00005C (??, ??, ??, ??) [kdb_read_mem] no real storage @ FFFFFFFFFFF95E0 Mostly seen with non-UNIX NFS clients or clients that rely on the NLMPROC4_FREE_ALL call.
Local fix
Problem summary
AIX NFS server may crash, If NFS clients make NLMPROC4_FREE_ALL call to release all locks.
Problem conclusion
vnode list travarsal is bypassed if vfs type is MNT_PROCFS, MNT_AHAFS, MNT_UDF, MNT_CDROM. We should not go ahead and search for VNODEs on these VFS types.
Temporary fix
Comments
6100-07 - use AIX APAR IV58283 6100-08 - use AIX APAR IV57915 6100-09 - use AIX APAR IV51135 6100-09 - use AIX APAR IV51135 6100-09 - use AIX APAR IV51135 7100-01 - use AIX APAR IV57532 7100-02 - use AIX APAR IV57082 7100-03 - use AIX APAR IV49919
APAR Information
APAR number
IV51135
Reported component name
AIX 610 STD EDI
Reported component ID
5765G6200
Reported release
610
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Submitted date
2013-10-21
Closed date
2013-10-21
Last modified date
2014-08-14
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 U859271
UP14/05/21 I 1000
PTF to Fileset Mapping
U859271 bos.net.nfs.client 6.1.9.15
[{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SSMV87","label":"AIX 6.1 Enterprise Edition"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"610","Edition":"","Line of Business":{"code":"LOB08","label":"Cognitive Systems"}},{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SSMVAX","label":"AIX Express Edition"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"610","Edition":"","Line of Business":{"code":"LOB08","label":"Cognitive Systems"}},{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SSAUMY","label":"IBM AIX Enterprise Edition"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"610","Edition":"","Line of Business":{"code":"","label":""}},{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SG11Q","label":"AIX 6.1 HIPERS, APARs and Fixes"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"610","Edition":"","Line of Business":{"code":"","label":""}}]
Document Information
Modified date:
14 August 2014