Error reading some values (and repeated, periodic warnings)

[brunoseivam]

While trying to run this IOC outside of the iseg, I encountered a bunch of error messages. Some PVs update fine:

epics> dbgf ISEG:5230102:BitRate
DBR_LONG:           1000000   0xf4240

But not others, as seen in the log below. Maybe I am doing something wrong?

Also, the message "QSocketNotifier: Socket notifiers cannot be enabled or disabled from another thread" keeps getting printed periodically. I wonder if this is a problem with libisegHAL.

$ LD_LIBRARY_PATH=/home/martins/workspace/diag-iseg/iseg-bin ./st.cmd 
#!../../bin/linux-x86_64/isegIoc
< envPaths
epicsEnvSet("IOC","ioc-iseg")
epicsEnvSet("TOP","/home/martins/workspace/devIsegHal")
epicsEnvSet("EPICS_BASE","/usr/lib/epics")
epicsEnvSet("ISEGHAL","/home/martins/workspace/diag-iseg/iseg-bin")
dbLoadDatabase("/home/martins/workspace/devIsegHal/dbd/isegIoc.dbd",0,0)
isegIoc_registerRecordDeviceDriver(pdbbase)
isegHalConnect "can0" "hal://192.168.1.101:1454/can0,user,pass"
using HAL version [1.1.2.8]
dbLoadRecords("/home/martins/workspace/devIsegHal/db/iseg_epics.db", "CONTROLLER_SN=5230102,port=can0,CAN_LINE=0,DEVICE_ID=1000,MODULE_ID=0,CHANNEL_ID=0")
iocInit()
Starting iocInit
############################################################################
## EPICS R3.15.7-3+0~20191126215846.15+debian10~1.gbp050662
## EPICS Base built Nov 26 2019
############################################################################
ISEG:5230102:ModuleNumber: Error while reading value 'ModuleNumber' from interface 'can0': '0' (Q: )
ISEG:5230102:ModuleNumber: Error parsing timestamp for 'ModuleNumber': 
ISEG:5230102:CycleCounter: Error while reading value 'CycleCounter' from interface 'can0': '0' (Q: )
ISEG:5230102:CycleCounter: Error parsing timestamp for 'CycleCounter': 
ISEG:5230102:0:0:SerialNumber: Error while reading item property '0.0.SerialNumber' (Q: )
ISEG:5230102:0:0:ChannelNumber: Error while reading item property '0.0.ChannelNumber' (Q: )
ISEG:5230102:0:0:SampleRate: Error while reading item property '0.0.SampleRate' (Q: )
ISEG:5230102:0:0:DigitalFilter: Error while reading item property '0.0.DigitalFilter' (Q: )
ISEG:5230102:0:0:EventMask: Error while reading item property '0.0.EventMask' (Q: )
ISEG:5230102:0:0:0:EventMask: Error while reading item property '0.0.0.EventMask' (Q: )
ISEG:5230102:0:0:0:DelayedTripAction: Error while reading item property '0.0.0.DelayedTripAction' (Q: )
ISEG:5230102:0:0:0:ExternalInhibitAction: Error while reading item property '0.0.0.ExternalInhibitAction' (Q: )
ISEG:5230102:0:0:VoltageRampSpeed: Error while reading item property '0.0.VoltageRampSpeed' (Q: )
Bad init_rec return value  PV: ISEG:5230102:0:0:VoltageRampSpeed ao: init_record

ISEG:5230102:0:0:CurrentRampSpeed: Error while reading item property '0.0.CurrentRampSpeed' (Q: )
Bad init_rec return value  PV: ISEG:5230102:0:0:CurrentRampSpeed ao: init_record

ISEG:5230102:0:0:0:VoltageSet: Error while reading item property '0.0.0.VoltageSet' (Q: )
Bad init_rec return value  PV: ISEG:5230102:0:0:0:VoltageSet ao: init_record

ISEG:5230102:0:0:0:CurrentSet: Error while reading item property '0.0.0.CurrentSet' (Q: )
Bad init_rec return value  PV: ISEG:5230102:0:0:0:CurrentSet ao: init_record

ISEG:5230102:0:0:0:VoltageBounds: Error while reading item property '0.0.0.VoltageBounds' (Q: )
Bad init_rec return value  PV: ISEG:5230102:0:0:0:VoltageBounds ao: init_record

ISEG:5230102:0:0:0:CurrentBounds: Error while reading item property '0.0.0.CurrentBounds' (Q: )
Bad init_rec return value  PV: ISEG:5230102:0:0:0:CurrentBounds ao: init_record

ISEG:5230102:0:0:0:VctCoefficient: Error while reading item property '0.0.0.VctCoefficient' (Q: )
Bad init_rec return value  PV: ISEG:5230102:0:0:0:VctCoefficient ao: init_record

ISEG:5230102:0:0:0:DelayedTripTime: Error while reading item property '0.0.0.DelayedTripTime' (Q: )
Bad init_rec return value  PV: ISEG:5230102:0:0:0:DelayedTripTime ao: init_record

ISEG:5230102:0:0:VoltageLimit: Error while reading item property '0.0.VoltageLimit' (Q: )
ISEG:5230102:0:0:CurrentLimit: Error while reading item property '0.0.CurrentLimit' (Q: )
ISEG:5230102:0:0:Temperature: Error while reading item property '0.0.Temperature' (Q: )
ISEG:5230102:0:0:0:VoltageMeasure: Error while reading item property '0.0.0.VoltageMeasure' (Q: )
ISEG:5230102:0:0:0:CurrentMeasure: Error while reading item property '0.0.0.CurrentMeasure' (Q: )
ISEG:5230102:0:0:0:VoltageNominal: Error while reading item property '0.0.0.VoltageNominal' (Q: )
ISEG:5230102:0:0:0:CurrentNominal: Error while reading item property '0.0.0.CurrentNominal' (Q: )
ISEG:5230102:0:0:0:TemperatureExternal: Error while reading item property '0.0.0.TemperatureExternal' (Q: )
ISEG:5230102:0:0:Status: Error while reading item property '0.0.Status' (Q: )
ISEG:5230102:0:0:StatusLow: Error while reading item property '0.0.Status' (Q: )
ISEG:5230102:0:0:StatusHigh: Error while reading item property '0.0.Status' (Q: )
ISEG:5230102:0:0:EventStatus: Error while reading item property '0.0.EventStatus' (Q: )
ISEG:5230102:0:0:0:Status: Error while reading item property '0.0.0.Status' (Q: )
ISEG:5230102:0:0:0:EventStatus: Error while reading item property '0.0.0.EventStatus' (Q: )
ISEG:5230102:0:0:Control:doClear: Error while reading item property '0.0.Control:6' (Q: )
ISEG:5230102:0:0:Control:setFineAdjustment: Error while reading item property '0.0.Control:12' (Q: )
ISEG:5230102:0:0:Control:setKillEnable: Error while reading item property '0.0.Control:14' (Q: )
ISEG:5230102:0:0:Control:disableVoltageRampSpeedLimit: Error while reading item property '0.0.Control:16' (Q: )
ISEG:5230102:0:0:0:Control:setOn: Error while reading item property '0.0.0.Control:3' (Q: )
ISEG:5230102:0:0:0:Control:setEmergency: Error while reading item property '0.0.0.Control:5' (Q: )
ISEG:5230102:0:0:FirmwareRelease: Error while reading item property '0.0.FirmwareRelease' (Q: )
ISEG:5230102:0:0:FirmwareName: Error while reading item property '0.0.FirmwareName' (Q: )
ISEG:5230102:0:0:Article: Error while reading item property '0.0.Article' (Q: )
iocRun: All initialization complete
epics> QSocketNotifier: Socket notifiers cannot be enabled or disabled from another thread
QSocketNotifier: Socket notifiers cannot be enabled or disabled from another thread
QSocketNotifier: Socket notifiers cannot be enabled or disabled from another thread
QSocketNotifier: Socket notifiers cannot be enabled or disabled from another thread
QSocketNotifier: Socket notifiers cannot be enabled or disabled from another thread
QSocketNotifier: Socket notifiers cannot be enabled or disabled from another thread
...

[brunoseivam]

OK, it was my fault. When the STATUS LED on the front panel (I should mention, this is a CC24) is OFF, I see the error messages above. When the LED is ON, I see only two error messages:

ISEG:5230102:0:0:0:VctCoefficient: Error while reading value '0.0.0.VctCoefficient' from interface 'can0': '0.0000000E+00' (Q: 003)
ISEG:5230102:0:0:0:TemperatureExternal: Error while reading value '0.0.0.TemperatureExternal' from interface 'can0': '0.0000000E+00' (Q: 003)

But the QSocketNotifier messages are still present. I will investigate more tomorrow.