Experimental Physics and
Industrial Control System

Kate Feng <[email protected]> · Fri, 19 Jun 2009 08:47:02 -0400

GOURNAY Jean-Francois wrote:

Hello All,

This is a problem which not directly related to Epics, but as several

labs are using the MVME5500 CPU I hope that maybe someone has

encountered this problem and has a solution!

Whenever a C program has a misbehaved pointer, which causes a

memory-write outside the allocated data memory, we have a crash of the

CPU which is absolutely understandable, but then, it is impossible to

reboot the CPU. Both flash banks containing the initial bootload and

the VxWorks boot are corrupted and the only solution is to send back

the CPU to the retailer !!! We had experienced this with several CPUs

(we are probably bad C programmers) and didn’t get so far any

explanation from our retailers or after sales services. We have

VxWorks 6.5.

We do not have the problem with the RTEMS-mvme5500 BSP. In that case,
I just have to debug and rewirte the software and reboot the CPU.

However, for vxWorks, I think you should be able to reload the initial

bootload and the

vxWorks boot yourself. Did'nt they send you the boot files ? I thought I

reload the

those vxWorks boot files myself serveral times myself many yeras ago.
Cheers,
Kate

Thanks in advance

J.F. Gournay

CEA Saclay

IRFU/SIS

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System