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<== Date ==> <== Thread ==>

Subject: Re: EDM Segmentation fault
From: John William Sinclair <sinclairjw@ornl.gov>
To: tech-talk@aps.anl.gov
Date: Thu, 12 Jul 2012 10:33:47 -0400
Zhang,

This may be a configuration issue. Examine the following environment variables and
make sure the values are reasonable. By reasonable I mean make sure various files actually
do reside in the referenced locations, make sure ldd doesn't report any inconsistencies, etc.
See the examples below for some diagnostics.


EDMOBJECTS

This holds the directory in which the file edmObjects resides.

For one of my installations, this is /epics/edmRuntime/config-1-12-66.

Doing cat /epics/edmRuntime/config-1-12-66/edmObjects gives
35
activeLineClass $(EDMLIBS)/libEdmBase.so Graphics Lines
activeRectangleClass $(EDMLIBS)/libEdmBase.so Graphics Rectangle
activeCircleClass $(EDMLIBS)/libEdmBase.so Graphics Circle
activeArcClass $(EDMLIBS)/libEdmBase.so Graphics Arc
	.
	.
	.

In this case, I have also set EDMLIBS to /epics/edmRuntime/lib-1-12-66. Your file
will not reference EDMLIBS.

At this point I could do ldd /epics/edmRuntime/lib-1-12-66/libEdmBase.so which gives:
ldd /epics/edmRuntime/lib-1-12-66/libEdmBase.so
        linux-gate.so.1 =>  (0x0082e000)
        libXm.so.3 => /usr/X11R6/lib/libXm.so.3 (0x00111000)
        libXt.so.6 => /usr/X11R6/lib/libXt.so.6 (0x00e78000)
	.
	.
	.


EDMPVOBJECTS


This holds the directory in which the file edmPvObjects resides.

For one of my installations, this is /epics/edmRuntime/config-1-12-66.

Doing cat /epics/edmRuntime/config-1-12-66/edmPvObjects gives
4
EPICS $(EDMLIBS)/libEpics.so EPICS PV
LOC $(EDMLIBS)/libLoc.so Local PV
CALC $(EDMLIBS)/libCalc.so Calculation PV
DB $(EDMLIBS)/libExtra/libDb.so MySql Database PV (readonly)

In this case, I have also set EDMLIBS to /epics/edmRuntime/lib-1-12-66. Your file
will not reference EDMLIBS.

At this point I could do ldd /epics/edmRuntime/lib-1-12-66/libEpics.so which gives:
ldd /epics/edmRuntime/lib-1-12-66/libEpics.so
        linux-gate.so.1 =>  (0x00cd1000)
        lib114135a4-6f6c-11d3-95bc-00104b8742df.so => /util/lib114135a4-6f6c-11d3-95bc-00104b8742df.so (0x0098c000)
        libcfcaa62e-8199-11d3-a77f-00104b8742df.so => /epics/edmRuntime/lib-1-12-66/libcfcaa62e-8199-11d3-a77f-00104b8742df.so (0x0080b000)
        libca.so => /epics/supTop/R3.14.6/base-3.14.6/lib/linux-x86/libca.so (0x00d4c000)
	.
	.
	.

------------------------

Try this before generating a core file and let me know if you need additional assistance.

John Sinclair
 

On 07/12/2012 03:22 AM, Zhang Yuliang wrote:
> Hello all,
>
> I am trying to install EDM-1-12-78 on a Redhat 4.8 32 bit machine and am able to build it successfully. However, when I try to create a new edl file or open an existing edl file , the EDM crashes with the error of "Segmentation fault".
>
> How to solve this issue?
>
> thanks and regards,
> Zhang Yuliang
>
>
>
>


References:
EDM Segmentation fault Zhang Yuliang

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