On 8/17/21 7:42 PM, Joel Sherrill wrote:
On Tue, Aug 17, 2021, 7:00 PM Chris Johns <chr...@rtems.org
<mailto:chr...@rtems.org>> wrote:
On 18/8/21 5:19 am, Chandler, Brendan wrote:
> I think I found the answer to my own issue. I needed this
configuration option:
> #define CONFIGURE_MAXIMUM_USER_EXTENSIONS 5
>
> With that, the error "cannot create extension" goes away and I
can boot.
>
Great to see you managed to solve the problem and thank you for
letting us know.
Do you have something like CONFIGURE_UNLIMITED and
CONFIGURE_UNIFIED_WORKSPACE?
With those (spelled correctly) you should be able to create objects
until memory runs out.
Also configuring the minimum thread stack size to give some breathing
space is often handy.
I've added those things now, thanks for the tip!
--joel
Chris
>
> ________________________________________
> From: Chandler, Brendan <bchand...@anl.gov
<mailto:bchand...@anl.gov>>
> Sent: Tuesday, August 17, 2021 11:09
> To: users@rtems.org <mailto:users@rtems.org>
> Subject: libbsd network on an mvme2500
>
> Hi rtems-users,
>
> I'm trying to set up a simple RTEMS 5 program to get my mvme2500
board up and running with a static network configuration using
libbsd. I took the hello.c example from the getting started
guide, and modified it to use libbsd and configure the network.
My problem is I get a runtime error when loading my binary when I
call rtems_bsd_initialize():
>
> ## Booting kernel from Legacy Image at 10000000 ...
> Image Name: RTEMS
> Created: 2021-08-17 15:32:55 UTC
> Image Type: PowerPC Linux Kernel Image (gzip compressed)
> Data Size: 968695 Bytes = 946 KiB
> Load Address: 00004000
> Entry Point: 00004000
> Verifying Checksum ... OK
> ## Flattened Device Tree blob at 20000000
> Booting using the fdt blob at 0x20000000
> Uncompressing Kernel Image ... OK
> Loading Device Tree to 00ff9000, end 00fff04a ... OK
> emerg: rtems_bsd_threads_init_early: cannot create extension
>
> This seems to be coming from
rtems-libbsd/rtemsbsd/rtems/rtems-kernel-thread.c where the call
to rtems_extension_create() fails.
>
> I've posted my code at github here:
> https://github.com/brendanchandler/test-rtems5
<https://github.com/brendanchandler/test-rtems5>
>
> Can anyone help get around this error? I'm probably missing
some configuration or setup, but haven't been able to determine
what it is.
>
> Thanks in advance for any help,
> Brendan
>
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> users@rtems.org <mailto:users@rtems.org>
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