A fix is available
APAR status
Closed as program error.
Error description
System hang in: [00009938].simple_unlock_mem+000020 () [000F239C]e_block_thread+00049C () [000F2D08]e_sleep_thread+0000E8 (??, ??, ??) [000ECDA8]prUblockSegAttach+000048 (??, ??) [0043CD34]prGetPsinfo+0005F4 (??, ??, ??) [0043CEE8]prReadPsinfo+000168 (??, ??, ??, ??, ??, ??, ??, ??) [00439B78]procfsRdwr+0001D8 (??, ??, ??, ??, ??, ??, ??, ??) [006009F4]vnop_rdwr+000814 (??, ??, ??, ??, ??, ??, ??, ??) [00619AB4]vno_rw+0000B4 (??, ??, ??, ??, ??) [005AF020]rwuio+000100 (??, ??, ??, ??, ??, ??) [005AFA60]fp_rdwr+000160 (??, ??, ??, ??, ??, ??, ??, ??) [005B03D4]fp_read+000034 (??, ??, ??, ??, ??, ??) [0536BB88]amf_get_psinfo+000160 (??, ??) [0536BC7C]amf_s_proff_pid_monitor+000068 (??) [0536B7EC]amf_prexec_hook+000088 (??, ??, ??) [000E9188]prochcall+000268 (??, ??, ??, ??) [0048FA58]execvex_common+0022D8 (??, ??, ??, ??, ??) [00492F8C]execve+0000A8 ()
Local fix
Problem summary
Customer may see system hang if a process tries to get psinfo on it self from a prochcall resource handler during exec.
Problem conclusion
Fixed the issue in such a way that the there will be no system hang if a process tries to get psinfo on it self.This is done by not to sleep for exec event completion if current process is trying to get psinfo on it self.
Temporary fix
Comments
APAR Information
APAR number
IV64629
Reported component name
AIX V7.1
Reported component ID
5765H4000
Reported release
710
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Submitted date
2014-09-05
Closed date
2014-09-05
Last modified date
2015-12-31
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 V7.1
Fixed component ID
5765H4000
Applicable component levels
R710 PSY U863867
UP15/11/22 I 1000
PTF to Fileset Mapping
U863867 bos.mp64 7.1.4.0
[{"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":"710","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":"710","Edition":"","Line of Business":{"code":"LOB08","label":"Cognitive Systems"}},{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SG11R","label":"AIX 7.1 HIPERS, APARs and Fixes"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"710","Edition":"","Line of Business":{"code":"","label":""}}]
Document Information
Modified date:
31 December 2015