Setting "debug" to "1" segfaults

[brunoseivam]

Hi Florian,

I finally got around to test this device support outside of an iseg device. I followed your advice (setting ISEGHAL, creating symlinks to the headers, etc) and got the IOC to compile. However, if I try to set "debug" to "1", it segfaults:

$ 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]
devIsegHalSetOpt "can0" "debug" "1"
Segmentation fault (core dumped)

The reason is because I inserted the devIsegHalSetOpt call before iocInit(), not after. At that point, myIsegHalThread is NULL.