Experimental Physics and
Industrial Control System

"Jim Chen" <[email protected]> · Fri, 7 Feb 2014 14:47:46 -0000

Hello,

Has anybody experienced segmentation fault when using asynPortDriver
parameter interfaces such as 

	getIntegerParam
	setIntegerParam
	setDoubleParam

in the queuetask in Linux 3.8.13 for arm processor?

My environment is an EPICS application on BeagleBone Black:

	Platform: BeagleBone Black
	Processor: ARMv7 Processor rev 2 (v7l)
	Linux distro: Angstrom Linux version 3.8.13 (koen@rrMBP) (gcc
version 4.7.3 20130205 (prerelease) (Linaro GCC 4.7-2013.02-01) ) #1 SMP Thu
Sep 12 10:27:06 CEST 2013
	EPICS R3.14.12.3
	Asyn4-22/4-18

Everything else works fine until an interrupt which wakes up the queuetask.
Inside the queuetask, any of those parameter interfaces causes the
segmentation fault.

I have tried the same code in other arch like Intel but running Scientific
Linux without problem.

Any idea?

Thanks,
Jim 

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System