Experimental Physics and
Industrial Control System

Hi -

Perhaps others can correct me but until the sequencer is ready for 64 bits, it is best to build any IOC application that uses a sequence on linux-x86 (EPICS_HOST_ARCH) instead of linux-x86_64.

I discovered that even building RTEMS 32 bit sequences (using the RTEMS 32bit tool chain) on a linux-x86_64 build is problematic as the 64bit-built SNC compiler will, in some special cases, convert the .st file to a buggy .c file (in the initialization of the state event masks).

I look forward to testing whatever beta version of the sequencer, with 64 bit support, Ben Franksen makes available.

Stephanie Allison

> -----Original Message-----
> From: Abadie Lana [mailto:[email protected]]
> Sent: Wednesday, April 13, 2011 11:22 PM
> To: Allison, Stephanie
> Cc: [email protected]
> Subject: RE: ioc segfault if - c seq flag is not set or +c?
> 
> Yes Red Hat 64-bits
> Lana
> 
> -----Original Message-----
> From: Allison, Stephanie [mailto:[email protected]]
> Sent: 13 April 2011 23:44
> To: Abadie Lana
> Subject: RE: ioc segfault if - c seq flag is not set or +c?
> 
> Hi -
> 
> What OS are you running?  Hopefully not 64 bit...
> 
> Stephanie Allison
> 
> > -----Original Message-----
> > From: [email protected] [mailto:[email protected]] On Behalf
> > Of Abadie Lana
> > Sent: Wednesday, April 13, 2011 1:41 PM
> > To: [email protected]
> > Subject: ioc segfault if - c seq flag is not set or +c?
> >
> > Hi all
> > may be a well known problem but as i'm new...
> > i just want to check that my assumptions are correct and see if it is the expected
> behavior...
> > i have a snl program started within an IOC . the SNL code includes some monitor PVs
> and
> > pvPut.
> > The loading of the SNL program is done in the st.cmd file
> > if i put as seq flags options for compilation -c, the ioc starts properly
> > if I omit the -c flag or if i put +c flag, then IOC segfault. Actually the first time i didn't
> put
> > this +/-c option. and it segfault.. I was a little bit surprised.
> >
> >
> > Version of EPICS BASE:3.14.12
> > version of SNL : 2.0.12
> >
> > thanks for your feedback
> > Lana
> >

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Re: ioc segfault if - c seq flag is not set or +c? J. Lewis Muir

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ioc segfault if - c seq flag is not set or +c? Abadie Lana

RE: ioc segfault if - c seq flag is not set or +c? Abadie Lana

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