Experimental Physics and
Industrial Control System

Eric Norum <[email protected]> · Fri, 31 Jul 2009 11:35:05 -0500

Have a look at the interrupt handler code -- it should never call any

of the asyn trace methods. But it would appear that somehow this may

be happening.

On Jul 31, 2009, at 11:30 AM, Shifu Xu wrote:

Hi,

I am trying to test an asyn based driver for the digitel multi-pump
controller(MPC). The MPC is connected to MVME2100 through a bitbus

controller VMOD-2 and a RS232 BUG(bitbus universal gateway). The

device

support is part of sysApps package. The software module I also

loaded is

asynSerialBUG, which is asyn support for the BUG.

IOC(on vxWorks 5.5, base 3.14.10) works fine with asyn traceflow off.
But it crashes when asyn traceflow turned on with the following info:

2009/07/30 16:53:14.088 PortA -1 exception 3 occurred calling
exceptionUser
2009/07/30 16:53:14.088 PortA -1 exception 3 occurred calling
exceptionUser
2009/07/30 16:53:14.088 xusf:asynRecord: exception 3
2009/07/30 16:53:15.872 PortA addr -1 queueRequest priority 0 not
lockHolder
2009/07/30 16:53:15.872 PortA callback

alignment
alignment

The console shows the following info after a VME crate reset.

Exception at interrupt level:

program
Exception current instruction address: 0x0000b030
Machine Status Register: 0x00089030
Condition Register: 0x40000042
Regs at 0x235760
Link Register: 0x00104a3c

Exception at interrupt level:

data access
Exception

Has anybody experienced similar problem and how to fix it?

Thanks,
Shifu

--
Eric Norum <[email protected]>
Advanced Photon Source
Argonne National Laboratory
(630) 252-4793

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System