A fix is available
APAR status
Closed as program error.
Error description
Reading data from loopback device causes system crash. The system crashed in fp_llseek in loopbackpg with the following stack trace. (3)> th SLOT NAME STATE TID PRI RQ CPUID CL WCHAN pvthread+016B00 363*loopback RUN 16B0013 05F 3 0 NAME................ loopbackpg : (3)> f pvthread+016B00 STACK: [005B0548]fp_llseek+000068 (0000000000000000, 0000000002722000, 0000000000000000 [??]) [00014F50].kernel_add_gate_cstack+000030 () [06400B70]loop_rw_strat+0002B0 (??, ??) [06400FF8]loop_pager+0000D8 (??, ??, ??) [00231A10]procentry+000010 (??, ??, ??, ??) [kdb_read_mem] no real storage @ FFFFFFFFFFF9340 (2)> dc fp_llseek 100
Local fix
N/A
Problem summary
READING FROM LOOPBACK CAUSES SYSTEM CRASH LOOP_RW_STRAT+0002B0
Problem conclusion
NULL pointer access eliminated
Temporary fix
Comments
APAR Information
APAR number
IV54915
Reported component name
AIX V7.1
Reported component ID
5765H4000
Reported release
710
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Submitted date
2014-02-03
Closed date
2014-02-03
Last modified date
2016-05-10
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 U860282
UP14/05/22 I 1000
PTF to Fileset Mapping
U860282 devices.loopback.rte 7.1.3.15
[{"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":"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:
10 May 2016