On Fri, May 20, 2022 at 3:55 PM Miroslaw Dach <miroslaw.d...@gmail.com> wrote:
> Hi Chris, > > Thank you very much for your expertise and attached links which are very > helpful. > As regards the INTERNAL_ERROR_TOO_LITTLE_WORKSPACE error message: > Is it possible to determine with some debug information what is the > foreseen by RTEMS WORKSPACE size? > This CONFIGURE_MEMORY_OVERHEAD is there as a mechanism to toss extra memory at the workspace in case confdefs.h makes a mistake. I think this is more likely to be something else like a misconfigured system. But adding this to your RTEMS configuration with some chunk of memory like 128K might allow this to proceed. But if it is a memory allocation error in the BSP like not assigning memory right to RTEMS, this won't fix it. See: https://docs.rtems.org/branches/master/c-user/config/general.html#configure-memory-overhead Chris has touched one of the boards in the motorola_powerpc family more recently than I have. I would think this would work unless something is off in the EPICS configuration of RTEMS. There was a discussion of the EPICS RTEMS configuration with Till recently on tech-talk and I thought it looked ok. --joel > > Best Regards > Mirek > > śr., 18 maj 2022 o 00:53 Chris Johns <chr...@rtems.org> napisał(a): > > > On 18/5/2022 9:36 am, Miroslaw Dach wrote: > > > Dear RTEMS Users and Developers, > > > > > > I have built RTEMS 5 with EPICS 7 and tried to boot my application on > > > mcp750 cPCI board. > > > The first thing that I have encountered is that the boot file is in the > > elf > > > format so I have > > > converted it to the binary one.: > > > powerpc-rtems5-objcopy -I elf32-powerpc -O binary myApp.boot > > myApp.boot.bin > > > > We removed the various post-link hooks. > > > > > So far so good > > > Next, I booted the system with my app and it fails in the *bsp_early* > > > function in > > > bsps/powerpc/motorola_powerpc/start/bspstart.c > > > > > > The boot sequence: > > > Network Boot File load in progress... To abort hit <BREAK> > > > > > > Bytes Received =&1270208, Bytes Loaded =&1270208 > > > Bytes/Second =&635104, Elapsed Time =2 Second(s) > > > > > > Residual-Data Located at: $01F88000 > > > > > > Model: (e2) > > > Serial: MOT0000000 > > > Processor/Bus frequencies (Hz): 366680480/66671508 > > > Time Base Divisor: 4000 > > > Memory Size: 2000000 > > > Residual: 1f88000 (length 27148) > > > > > > PCI: Probing PCI hardware > > > > > > RTEMS 5.0.0/PPC load: > > > Uncompressing the kernel... > > > done > > > Now booting... > > > ----------------------------------------- > > > Welcome to rtems-5.0.0 (PowerPC/Generic (classic FPU)/mcp750) on > Mesquite > > > cPCI (MCP750) > > > ----------------------------------------- > > > idreg 0 = 0x1208029271 > > > OpenPIC found at 0xc1000000. > > > pci : Configuring interrupt routing for 'Mesquite cPCI (MCP750)' > > > pci : No bridge from bus 0 towards root found > > > pci : No bridge from bus 0 towards root found > > > pci : Device 1:0x0b:0 routed to interrupt_line 27 > > > pci : Device 1:0x0d:0 routed to interrupt_line 25 > > > Cleared PCI errors: pci_stat was 0x2280 > > > OpenPIC Version ? (2 CPUs and 16 IRQ sources) at 0x3238002688 > > > OpenPIC Vendor 0 (Unknown), Device 0 (Unknown), Stepping 2 > > > OpenPIC timer frequency is 8333848 Hz > > > > This all looks OK. > > > > > > > > *** FATAL *** > > > fatal source: 0 (INTERNAL_ERROR_CORE) > > > fatal code: 2 (INTERNAL_ERROR_TOO_LITTLE_WORKSPACE) > > > RTEMS version: 5.0.0.fc89cc76804499eba3f3bc4097b795a84f07571a-modified > > > RTEMS tools: 7.5.0 20191114 (RTEMS 5, RSB 5 (6225eadda1de), Newlib > > 7947581) > > > executing thread is NULL > > > > > > My application in the binary format uncompressed with stripped symbols > > is a > > > 2.3M + 501K bootloader so I do not think that it > > > is an issue with the WORKSPACE? The mcp750 has 32MB of RAM. > > > How to detect what is the real cause of > > INTERNAL_ERROR_TOO_LITTLE_WORKSPACE > > > ? > > > Would it be the problem with the linker script ppcboot.lds? > > > > I do not think so. I suggest you check the Classic API Guide here: > > > > > > > https://ftp.rtems.org/pub/rtems/releases/5/5.1/docs/html/c-user/config/intro.html#sizing-the-rtems-workspace > > > > The accounting of memory is better and this means the extra space needed > > may > > need to be adjusted. I am not sure where in EPCIS this is controlled and > > if it > > can be overridden in your local configuration. > > > > RTEMS 5 has a unified workspace and heap. This means the heap and > > workspace can > > use memory until it is all used. The benefit is not need to manage the > > workspace > > size statically: > > > > > > > https://ftp.rtems.org/pub/rtems/releases/5/5.1/docs/html/c-user/config/general.html#configure-unified-work-areas > > > > Chris > > > _______________________________________________ > users mailing list > users@rtems.org > http://lists.rtems.org/mailman/listinfo/users _______________________________________________ users mailing list users@rtems.org http://lists.rtems.org/mailman/listinfo/users
