A fix is available
APAR status
Closed as program error.
Error description
procstack hangs in exit() after it receives sigsegv signal. The stack info for the hang is : (0)> tpid -d 42598508 SLOT NAME STATE TID PRI RQ CPUID CL WCHAN pvthread+050E00 1294!procstac RUN 50E00DB 06C 24 0 (0)> f pvthread+050E00 pvthread+050E00 STACK: Use current context [F00000002FF47600] of cpu 24 [9000000000407EC]free_y+00022C (09001000A04AFF38, 09001000A04AFF48 [??]) [900000000029F98]free_common+0000D8 (??) [9000000008E4494]__vd__FPv+000014 (??) [9000000008B6398]09000000008B6398 () [900000000054E40]exit+000140 (??) [100000A08]sighdl+000028 (??) [00004AD8].sig64+000070 () [kdb_read_mem] no real storage @ FFFFFFFFFFF8F70
Local fix
Problem summary
procstack hangs in exit() with below stack : (0)> f pvthread+050E00 pvthread+050E00 STACK: Use current context F00000002FF47600 of cpu 24 9000000000407EC free_y+00022C (09001000A04AFF38, 09001000A04AFF48 ?? ) 900000000029F98 free_common+0000D8 (??) 9000000008E4494 __vd__FPv+000014 (??) 9000000008B6398 09000000008B6398 () 900000000054E40 exit+000140 (??) 100000A08 sighdl+000028 (??) 00004AD8 .sig64+000070 () kdb_read_mem no real storage @ FFFFFFFFFFF8F70
Problem conclusion
Call _exit() in the signal handler which is Async-Signal-Safe instead calling exit()
Temporary fix
Comments
6100-08 - use AIX APAR IV70132 6100-09 - use AIX APAR IV64929 7100-02 - use AIX APAR IV70196 7100-03 - use AIX APAR IV64665
APAR Information
APAR number
IV64929
Reported component name
AIX 610 STD EDI
Reported component ID
5765G6200
Reported release
610
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Submitted date
2014-09-16
Closed date
2014-09-16
Last modified date
2015-11-20
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 U861471
UP15/11/20 I 1000
PTF to Fileset Mapping
U867519 bos.perf.proctools 6.1.9.45
U861471 bos.perf.proctools 6.1.9.100
[{"Business Unit":{"code":"BU058","label":"IBM Infrastructure 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":"LOB08","label":"Cognitive Systems"}},{"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":"LOB08","label":"Cognitive Systems"}},{"Business Unit":{"code":"BU058","label":"IBM Infrastructure 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":"LOB08","label":"Cognitive Systems"}},{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SG11R","label":"APARs - AIX 7.1 environment"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"610","Edition":"","Line of Business":{"code":"LOB08","label":"Cognitive Systems"}}]
Document Information
Modified date:
17 December 2021