BTW, i don’t see problem with the sample app gpsApp:
root@fx30:~# app start gpsApp
Jan 6 08:04:06 fx30 user.info Legato: INFO | supervisor[1013]/supervisor T=main | app.c app_Create() 3258 | Creating app 'gpsApp'
Jan 6 08:04:06 fx30 user.info Legato: INFO | supervisor[1013]/supervisor T=main | proc.c GetFaultAction() 326 | No fault action specified for process 'gpsApp'. Assuming 'ignore'.
Jan 6 08:04:06 fx30 user.warn Legato: -WRN- | supervisor[1013]/supervisor T=main | proc.c GetWatchdogAction() 362 | gpsApp watchdogAction '' in proc section
Jan 6 08:04:06 fx30 user.warn Legato: -WRN- | supervisor[1013]/supervisor T=main | proc.c GetWatchdogAction() 362 | gpsApp watchdogAction '' in proc section
Jan 6 08:04:06 fx30 user.info Legato: INFO | supervisor[1013]/supervisor T=main | app.c app_Start() 3471 | Starting app 'gpsApp'
root@fx30:~# Jan 6 08:04:06 fx30 user.info Legato: INFO | supervisor[1013]/supervisor T=main | app.c CreateFileLink() 2154 | Created file link '/legato/systems/current/apps/gpsApp/read-only/lib/libComponent_gpsComponent.so' to '/legato/systems/current/appsWriteable/gpsApp/lib/
Jan 6 08:04:06 fx30 user.info Legato: INFO | supervisor[1013]/supervisor T=main | app.c CreateFileLink() 2154 | Created file link '/legato/systems/current/apps/gpsApp/read-only/lib/libComponent_ctrlComponent.so' to '/legato/systems/current/appsWriteable/gpsApp/lib
Jan 6 08:04:06 fx30 user.info Legato: INFO | supervisor[1013]/supervisor T=main | app.c CreateFileLink() 2154 | Created file link '/legato/systems/current/apps/gpsApp/read-only/lib/libssl.so.1.0.2' to '/legato/systems/current/appsWriteable/gpsApp/lib/libssl.so.1.0
Jan 6 08:04:06 fx30 user.info Legato: INFO | supervisor[1013]/supervisor T=main | app.c CreateFileLink() 2154 | Created file link '/legato/systems/current/apps/gpsApp/read-only/lib/libcrypto.so.1.0.2' to '/legato/systems/current/appsWriteable/gpsApp/lib/libcrypto.
Jan 6 08:04:06 fx30 user.info Legato: INFO | supervisor[1013]/supervisor T=main | app.c CreateFileLink() 2154 | Created file link '/legato/systems/current/apps/gpsApp/read-only/lib/libcurl.so.4' to '/legato/systems/current/appsWriteable/gpsApp/lib/libcurl.so.4'.
Jan 6 08:04:06 fx30 user.info Legato: INFO | supervisor[1013]/supervisor T=main | app.c CreateFileLink() 2154 | Created file link '/legato/systems/current/apps/gpsApp/read-only/lib/libz.so.1' to '/legato/systems/current/appsWriteable/gpsApp/lib/libz.so.1'.
Jan 6 08:04:06 fx30 user.info Legato: INFO | supervisor[1013]/supervisor T=main | app.c CreateFileLink() 2154 | Created file link '/legato/systems/current/apps/gpsApp/read-only/bin/map' to '/legato/systems/current/appsWriteable/gpsApp/bin/map'.
Jan 6 08:04:06 fx30 user.info Legato: INFO | supervisor[1013]/supervisor T=main | app.c CreateFileLink() 2154 | Created file link '/legato/systems/current/apps/gpsApp/read-only/bin/gpsApp' to '/legato/systems/current/appsWriteable/gpsApp/bin/gpsApp'.
Jan 6 08:04:06 fx30 user.info Legato: INFO | supervisor[1013]/supervisor T=main | app.c CreateFileLink() 2084 | Skipping file link '/legato/systems/current/apps/gpsApp/read-only/lib/libcurl.so.4' to '/legato/systems/current/appsWriteable/gpsApp/lib/libcurl.so.4':
Jan 6 08:04:06 fx30 user.info Legato: INFO | supervisor[1013]/supervisor T=main | app.c CreateFileLink() 2084 | Skipping file link '/legato/systems/current/apps/gpsApp/read-only/lib/libcrypto.so.1.0.2' to '/legato/systems/current/appsWriteable/gpsApp/lib/libcrypto
Jan 6 08:04:06 fx30 user.info Legato: INFO | supervisor[1013]/supervisor T=main | app.c CreateFileLink() 2084 | Skipping file link '/legato/systems/current/apps/gpsApp/read-only/lib/libssl.so.1.0.2' to '/legato/systems/current/appsWriteable/gpsApp/lib/libssl.so.1.
Jan 6 08:04:06 fx30 user.info Legato: INFO | supervisor[1013]/supervisor T=main | app.c CreateFileLink() 2084 | Skipping file link '/legato/systems/current/apps/gpsApp/read-only/lib/libz.so.1' to '/legato/systems/current/appsWriteable/gpsApp/lib/libz.so.1': Alread
Jan 6 08:04:06 fx30 user.info Legato: INFO | supervisor[1013]/supervisor T=main | app.c CreateFileLink() 2154 | Created file link '/bin/date' to '/legato/systems/current/appsWriteable/gpsApp/bin/date'.
Jan 6 08:04:06 fx30 user.info Legato: INFO | supervisor[1013]/supervisor T=main | app.c CreateFileLink() 2154 | Created file link '/bin/sh' to '/legato/systems/current/appsWriteable/gpsApp/bin/sh'.
Jan 6 08:04:06 fx30 user.info Legato: INFO | supervisor[1013]/supervisor T=main | app.c CreateFileLink() 2154 | Created file link '/etc/hosts' to '/legato/systems/current/appsWriteable/gpsApp/etc/hosts'.
Jan 6 08:04:06 fx30 user.info Legato: INFO | supervisor[1013]/supervisor T=main | app.c CreateFileLink() 2154 | Created file link '/etc/nsswitch.conf' to '/legato/systems/current/appsWriteable/gpsApp/etc/nsswitch.conf'.
Jan 6 08:04:06 fx30 user.info Legato: INFO | supervisor[1013]/supervisor T=main | app.c CreateFileLink() 2154 | Created file link '/etc/resolv.conf' to '/legato/systems/current/appsWriteable/gpsApp/etc/resolv.conf'.
Jan 6 08:04:06 fx30 user.info Legato: INFO | supervisor[1013]/supervisor T=main | app.c CreateFileLink() 2154 | Created file link '/etc/ssl/certs/ca-certificates.crt' to '/legato/systems/current/appsWriteable/gpsApp/etc/ssl/certs/ca-certificates.crt'.
Jan 6 08:04:06 fx30 user.info Legato: INFO | supervisor[1013]/supervisor T=main | app.c CreateFileLink() 2154 | Created file link '/lib/libnss_compat.so.2' to '/legato/systems/current/appsWriteable/gpsApp/lib/libnss_compat.so.2'.
Jan 6 08:04:06 fx30 user.info Legato: INFO | supervisor[1013]/supervisor T=main | app.c CreateFileLink() 2154 | Created file link '/lib/libnss_dns.so.2' to '/legato/systems/current/appsWriteable/gpsApp/lib/libnss_dns.so.2'.
Jan 6 08:04:06 fx30 user.info Legato: INFO | supervisor[1013]/supervisor T=main | app.c CreateFileLink() 2154 | Created file link '/lib/libnss_files.so.2' to '/legato/systems/current/appsWriteable/gpsApp/lib/libnss_files.so.2'.
Jan 6 08:04:06 fx30 user.info Legato: INFO | supervisor[1013]/supervisor T=main | app.c CreateFileLink() 2154 | Created file link '/lib/libresolv.so.2' to '/legato/systems/current/appsWriteable/gpsApp/lib/libresolv.so.2'.
Jan 6 08:04:06 fx30 user.info Legato: INFO | supervisor[1013]/supervisor T=main | app.c CreateFileLink() 2154 | Created file link '/usr/bin/curl' to '/legato/systems/current/appsWriteable/gpsApp/usr/bin/curl'.
Jan 6 08:04:06 fx30 user.info Legato: INFO | supervisor[1013]/supervisor T=main | app.c CreateFileLink() 2154 | Created file link '/dev/null' to '/legato/systems/current/appsWriteable/gpsApp/dev/null'.
Jan 6 08:04:06 fx30 user.info Legato: INFO | supervisor[1013]/supervisor T=main | app.c CreateFileLink() 2154 | Created file link '/dev/random' to '/legato/systems/current/appsWriteable/gpsApp/dev/random'.
Jan 6 08:04:06 fx30 user.info Legato: INFO | supervisor[1013]/supervisor T=main | app.c CreateFileLink() 2154 | Created file link '/dev/urandom' to '/legato/systems/current/appsWriteable/gpsApp/dev/urandom'.
Jan 6 08:04:06 fx30 user.info Legato: INFO | supervisor[1013]/supervisor T=main | resourceLimits.c GetCfgResourceLimit() 207 | Configured resource limit maxStackBytes is not available. Using the default value 0.
Jan 6 08:04:06 fx30 user.info Legato: INFO | supervisor[1013]/supervisor T=main | proc.c proc_Start() 1403 | Starting process 'gpsApp' with pid 2530
Jan 6 08:04:06 fx30 user.info Legato: INFO | supervisor[1013]/supervisor T=main | supervisor.c SigChildHandler() 899 | Reaping unconfigured child process 2526.
Jan 6 08:04:06 fx30 user.info Legato: INFO | supervisor[2530]/supervisor T=main | proc.c proc_Start() 1363 | Execing 'gpsApp'
Jan 6 08:04:06 fx30 user.info Legato: INFO | supervisor[2530]/supervisor T=main | resourceLimits.c SetRLimitValue() 301 | Setting resource limit maxCoreDumpFileBytes to value 102400.
Jan 6 08:04:06 fx30 user.info Legato: INFO | supervisor[2530]/supervisor T=main | resourceLimits.c SetRLimitValue() 301 | Setting resource limit maxFileBytes to value 102400.
Jan 6 08:04:06 fx30 user.info Legato: INFO | supervisor[2530]/supervisor T=main | resourceLimits.c SetRLimitValue() 301 | Setting resource limit maxLockedMemoryBytes to value 8192.
Jan 6 08:04:06 fx30 user.info Legato: INFO | supervisor[2530]/supervisor T=main | resourceLimits.c SetRLimitValue() 301 | Setting resource limit maxFileDescriptors to value 256.
Jan 6 08:04:06 fx30 user.info Legato: INFO | supervisor[2530]/supervisor T=main | resourceLimits.c SetRLimitValue() 301 | Setting resource limit maxMQueueBytes to value 512.
Jan 6 08:04:06 fx30 user.info Legato: INFO | supervisor[2530]/supervisor T=main | resourceLimits.c SetRLimitValue() 301 | Setting resource limit maxThreads to value 20.
Jan 6 08:04:06 fx30 user.info Legato: INFO | supervisor[2530]/supervisor T=main | resourceLimits.c SetRLimitValue() 301 | Setting resource limit maxQueuedSignals to value 100.
Jan 6 08:04:06 fx30 user.warn Legato: -WRN- | posDaemon[1180]/framework T=main | safeRef.c le_ref_CreateRef() 547 | Safe reference map maximum exceeded for refFdMonitors, new size 42
root@fx30:~# app status
[running] atAirVantage
[running] atQmiLinker
[running] atService
[running] audioService
[running] avcService
[running] cellNetService
[running] columbiaAtService
[running] dataConnectionService
[running] factoryRecoveryService
[running] fwupdateService
[running] gpioService
[running] modemService
[running] portService
[running] positioningService
[running] powerMgr
[running] qmiAirVantage
[running] secStore
[stopped] smsInboxService
[stopped] spiService
[stopped] tools
[stopped] voiceCallService
[stopped] wifi
[stopped] wifiApTest
[stopped] wifiClientTest
[running] wifiService
[stopped] wifiWebAp
[running] gpsApp
root@fx30:~# legato version
19.11.5.86c98a88_535cbe294c2b528b4fc38a47809866e9_modified