Experimental Physics and
Industrial Control System

Simon Reiter <[email protected]> · Wed, 31 Jan 2018 15:01:07 +0100

On 01/31/2018 01:04 PM, Benjamin Franksen wrote:

I have tried to reproduce your problem by simplifying it to the bare
essentials: three states that do nothing but announce themselves through
a PV (using your macro and parts of your enum definition) and then
(unconditionally) go to the next state, looping the whole process for 10
iterations. I camonitor the PV state_current and expect to get a
sequence of values 1 2 3 1 2 3 etc. With normal pvPut this indeed fails:

franksen@tiber: ~ > camonitor state_current
state_current                  2018-01-31 12:54:53.663351 3
state_current                  2018-01-31 12:56:20.357273 1
state_current                  2018-01-31 12:56:20.357293 1
state_current                  2018-01-31 12:56:20.357348 2
state_current                  2018-01-31 12:56:20.357348 2
state_current                  2018-01-31 12:56:20.357418 3
state_current                  2018-01-31 12:56:20.357418 3

The reason it fails is that the fire-and-forget pvPut commands are
issued in a very tight loop here; the server receives the next ca_put
message before it can act (process, issue monitor events) on the first.

But with pvPut(pv_variable, SYNC) I get the expected

Some more testing showed that the same IOC build for linux-x86_64 is

running as expect on my machine.

So there seem to be a problem running this on linux-ppc.

My CONFIG_SITE.Common.linux-ppc is:

ARCH_CLASS = ppc

COMMANDLINE_LIBRARY = READLINE_NCURSES
GNU_DIR = $(HOST_DIR)/usr
GNU_TARGET = powerpc-buildroot-linux-uclibc

and CONFIG.Common.linux-ppc is:

ARCH_CLASS = ppc
ARCH_DEP_CPPFLAGS += -D_ppc_
VALID_BUILDS = Host Ioc

Any idea, what I might need to change?

I also tried CROSS_OPT=NO, but this did not help either.

--
Simon Reiter
II. Physikalisches Institut
Justus-Liebig-Universtität
Heinrich-Buff-Ring 16
D-35392 Giessen
Tel: +49 641 99 33250

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System