Experimental Physics and
Industrial Control System

Folks,

 

I have an NDArray with a string attribute holding the value “Continuous”.  When the NDArray gets converted to an NTNDArray in NTNDArrayConverter I am getting this crash:

 

#0  0x00007fad6f64e2ad in  () at /lib64/libstdc++.so.6

#1  0x00007fad6f6b1e5e in std::string::assign(std::string const&) () at /lib64/libstdc++.so.6

#2  0x00000000006c113d in epics::pvData::detail::ScalarStorageOps<std::string>::store(std::string const&) (__str="Continuous", this=0x7fac14002650)

    at /usr/include/c++/4.8.2/bits/basic_string.h:547

#3  0x00000000006c113d in epics::pvData::detail::ScalarStorageOps<std::string>::store(std::string const&) (this=this@entry=0x7fac14002650, val="Continuous")

    at /usr/local/epics-devel/base-7.0.2/include/pv/pvData.h:362

#4  0x00000000006cbf41 in NTNDArrayConverter::fromStringAttribute(std::tr1::shared_ptr<epics::pvData::PVStructure>, NDAttribute*) (v="Continuous", this=0x7fac140025f0)

    at /corvette/usr/local/epics-devel/base-7.0.2/include/pv/pvData.h:399

#5  0x00000000006cbf41 in NTNDArrayConverter::fromStringAttribute(std::tr1::shared_ptr<epics::pvData::PVStructure>, NDAttribute*) (this=this@entry=0x2fb0130, dest=

    std::tr1::shared_ptr (count 3, weak 1) 0x7fac140020b0, src="" at ../ntndArrayConverter.cpp:543

#6  0x00000000006ccc62 in NTNDArrayConverter::fromAttributes(NDArray*) (this=this@entry=0x2fb0130, src="" at ../ntndArrayConverter.cpp:589

#7  0x00000000006cf38d in NTNDArrayConverter::fromArray(NDArray*) (this=0x2fb0130, src="" at ../ntndArrayConverter.cpp:240

#8  0x000000000066c578 in NTNDArrayRecord::update(NDArray*) (this=0x2fad910, pArray=0x7fac94001270) at ../NDPluginPva.cpp:85

#9  0x000000000066c6ad in NDPluginPva::processCallbacks(NDArray*) (this=0x2f6c2a0, pArray=0x7fac94001270) at ../NDPluginPva.cpp:124

#10 0x000000000066f476 in NDPluginDriver::processTask() (this=0x2f6c2a0) at ../NDPluginDriver.cpp:524

#11 0x00000000012ac7f9 in epicsThreadCallEntryPoint(void*) (pPvt=0x2f6aff0) at ../../src/osi/epicsThread.cpp:83

#12 0x00000000012b226c in start_routine (arg=0x2f6aeb0) at ../../src/osi/os/posix/osdThread.c:403

#13 0x00007fad6ff53e25 in start_thread () at /lib64/libpthread.so.0

#14 0x00007fad6ee0cbad in clone () at /lib64/libc.so.6

 

This is base 7.0.2.2 on linux-x86_64.

 

Any idea why this is crashing?

 

Thanks,
Mark