Re: Question on error message -

[Will Shackleford <shackle-at-cme.nist.gov>]

On Thu, 2002-02-14 at 22:42, Pete Cook wrote:


For this error

 |starting EMC MOTION PROGRAM -- steppermod.o...Warning:
> plat/rtlinux_3_1/lib/steppermod.o symbol for parameter |STG_BASE_ADDRESS not
> found
> |can't install it

There are really three things that need to be 
fixed.


Remove STG_BASE_ADDRESS from stepper.ini.

(Stepper systems don't use the ServoToGo card so there's no good reason
to set a base address for one.)

We should probably also remove the line 

MODULE_PARM(STG_BASE_ADDRESS, "h");

from about line 3269 of emcstepmot.c 

generic.run should have not tried to pass the STG_BASE_ADDRESS parameter
on to steppermod.o even if it is in stepper.ini. On my system that's the
way it seems to work. So even with those two wasted parameters it still
runs. You can touch the file ~/.debug_scripts and get a lot more info on
the commands generic.run is running perhaps you can look at  the
commands just before the insmod and figure out what went wrong.


These errors

shmem.cc 496: Shared memory buffers spindleSts and  may conflict.
> (key=1007(0x3EF))

Can be caused by another program using the shared memory buffers that
EMC wants to use but this is very rare.

It can be caused by old buffers left from a previous run of emc.
You can check for this by running the command "ipcs" to see what buffers
are in use and use ipcrm to clear them. Although the script generic.run 
tries to do this for you anyway.

It can also be caused for certain combinations of libc and the linux
kernel the function that determines who created a certain shared memory
buffer doesn't work, which means you will very frequently get this
error. There is nothing you can do but just ignore it on these systems.
Fortunately this shouldn't prevent the system from running.



 |iniaxis.cc 466: bad return from emcAxisSetGains
>

These errors are related to the fact that the task level can't talk to
the motion level. This isn't surprising since the motion level never
started due to the previous problem with the STG_BASE_ADDRESS parameter.




> 
> I am running Slackware 8 with 2,2,19 kernel and RTLinux 3.1 and EMC -
> (thanks to Brian for the last 2)
> 
> Any help translating what I am getting for the results below.
> 
> EMC runs using sim.run but if I run generic.run I get the following output.
> Is this suggestiong that there is a problem with steppermod.o?
> 
> |/usr/local/nist/emc
> |Current platform is linux_2_2_19
> |Current real-time platform is rtlinux_3_1
> |inivar = plat/linux_2_2_19/bin/inivar
> |INIFILE = generic.ini
> |RS274NGC_PARAMFILE = emc.var
> |starting emc...
> |Removing module steppermod
> |/sbin/insmod -f /lib/modules/2.2.19-rtl/misc/rtl.o
> |/sbin/insmod -f /lib/modules/2.2.19-rtl/misc/mbuff.o
> |/sbin/insmod -f /lib/modules/2.2.19-rtl/misc/rtl_time.o
> |/sbin/insmod -f /lib/modules/2.2.19-rtl/misc/rtl_sched.o
> |/sbin/insmod -f /lib/modules/2.2.19-rtl/misc/rtl_posixio.o
> |/sbin/insmod -f /lib/modules/2.2.19-rtl/misc/rtl_fifo.o
> |starting EMC MOTION PROGRAM -- steppermod.o...Warning:
> plat/rtlinux_3_1/lib/steppermod.o symbol for parameter |STG_BASE_ADDRESS not
> found
> |can't install it
> |Removing module steppermod
> |generic.ini was not changed.
> |emc.var was not changed.
> |Removing kernel module rtl_fifo
> |Removing kernel module rtl_posixio
> |Removing kernel module rtl_sched
> \Removing kernel module rtl_time
> |Removing kernel module mbuff
> |Removing kernel module rtl
> 
> 
> and when I run emc.run I get the following -
> Any pointers as towhat I have to fix?
> 
> 
> |Current platform is linux_2_2_19
> |Current real-time platform is rtlinux_3_1
> |inivar = plat/linux_2_2_19/bin/inivar
> |INIFILE = emc.ini
> |starting emc...
> |/sbin/insmod -f /lib/modules/2.2.19-rtl/misc/rtl.o
> |/sbin/insmod -f /lib/modules/2.2.19-rtl/misc/mbuff.o
> |/sbin/insmod -f /lib/modules/2.2.19-rtl/misc/rtl_time.o
> |/sbin/insmod -f /lib/modules/2.2.19-rtl/misc/rtl_sched.o
> |/sbin/insmod -f /lib/modules/2.2.19-rtl/misc/rtl_posixio.o
> |/sbin/insmod -f /lib/modules/2.2.19-rtl/misc/rtl_fifo.o
> |starting EMC MOTION PROGRAM -- steppermod.o...Warning:
> plat/rtlinux_3_1/lib/steppermod.o symbol for parameter |STG_BASE_ADDRESS not
> found
> |done
> |starting EMC IO PROGRAM --  bridgeportio...done
> |Version:  1.11
> |Machine:  Generic
> |shmem.cc 496: Shared memory buffers emcError and  may conflict.
> (key=1003(0x3EB))
> |shmem.cc 496: Shared memory buffers toolCmd and  may conflict.
> (key=1004(0x3EC))
> |shmem.cc 496: Shared memory buffers toolSts and  may conflict.
> (key=1005(0x3ED))
> |shmem.cc 496: Shared memory buffers spindleSts and  may conflict.
> (key=1007(0x3EF))
> |shmem.cc 496: Shared memory buffers spindleCmd and  may conflict.
> (key=1006(0x3EE))
> |shmem.cc 496: Shared memory buffers coolantSts and  may conflict.
> (key=1009(0x3F1))
> |shmem.cc 496: Shared memory buffers coolantCmd and  may conflict.
> (key=1008(0x3F0))
> |shmem.cc 496: Shared memory buffers auxSts and  may conflict.
> (key=1011(0x3F3))
> |shmem.cc 496: Shared memory buffers auxCmd and  may conflict.
> (key=1010(0x3F2))
> |shmem.cc 496: Shared memory buffers lubeSts and  may conflict.
> (key=1013(0x3F5))
> |shmem.cc 496: Shared memory buffers lubeCmd and  may conflict.
> (key=1012(0x3F4))
> |starting EMC TASK PROGRAM -- bridgeporttask...done
> |Version:  1.11
> |Machine:  Generic
> |shmem.cc 496: Shared memory buffers emcCommand and  may conflict.
> (key=1001(0x3E9))
> |shmem.cc 496: Shared memory buffers emcStatus and  may conflict.
> (key=1002(0x3EA))
> |iniaxis.cc 466: bad return from emcAxisSetGains
> |iniaxis.cc 466: bad return from emcAxisSetGains
> |running EMC DISPLAY PROGRAM -- tkemc...
> |iniaxis.cc 466: bad return from emcAxisSetGains
> |bad return value from emcTrajSetCycleTime
> |iniaxis.cc 466: bad return from emcAxisSetGains
> |iniaxis.cc 466: bad return from emcAxisSetGains
> |iniaxis.cc 466: bad return from emcAxisSetGains
> |bad return value from emcTrajSetCycleTime
> |iniaxis.cc 466: bad return from emcAxisSetGains
> |iniaxis.cc 466: bad return from emcAxisSetGains
> |iniaxis.cc 466: bad return from emcAxisSetGains
> |emcsh.cc 5642: can't connect to emc
> |bad return value from emcTrajSetCycleTime
> |emc.ini was not changed.
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> 
> Pete
>