Infinite loop on _Heap_Allocate

[Jiri Gaisler]

Have you applied leon3 patches for qemu from https://gaisler.org/qemu ?

These are needed to boot RTEMS binaries properly.

Jiri.


On 08/24/2017 10:22 AM, LOPEZ CUEVA Patricia wrote:
>
> Hello all !
>
>  
>
> I’ve just installed rtems-4.8 on a Redhat 7 64 bits machine. I’ve
> installed the release version of rtems 4.8 and the following versions
> of the toolset:
>
> -          gcc 4.2.1 with newlib 1.15.0
>
> -          binutils 2.18
>
> -          gdb 6.8
>
>  
>
> The compilation and installation of the toolset and rtems run without
> problem except for the documentation part which I disabled.
>
>  
>
> Then I installed the rtems-4.8 examples and tried to run hello_world_c
> on qemu leon3 with the command “qemu-system-sparc -nographic -M
> leon3_generic -cpu LEON3 -kernel hello.exe -s –S”.
>
>  
>
> Neither error nor warning was present in the compilation or the
> execution process (nor the hello world message) and when I stop the
> execution it is always on the _Heap_Allocate function of
> cpukit/score/src/heapallocate.c file. Here is the backtrace:
>
>  
>
> (gdb) c
>
> Continuing.
>
>  
>
> Program received signal SIGINT, Interrupt.
>
> _Heap_Allocate (the_heap=0x40013e6c, size=<value optimized out>) at
> ../../../../../../rtems-4.8.0/c/src/../../cpukit/score/src/heapallocate.c:57
>
> 57            the_block = the_block->next, ++search_count)
>
> (gdb) bt
>
> #0  _Heap_Allocate (the_heap=0x40013e6c, size=<value optimized out>)
> at
> ../../../../../../rtems-4.8.0/c/src/../../cpukit/score/src/heapallocate.c:57
>
> #1  0x4000b8c8 in _Workspace_Allocate_or_fatal_error (size=52) at
> ../../cpukit/../../../leon3/lib/include/rtems/score/wkspace.inl:37
>
> #2  0x4000b2e4 in _User_extensions_Handler_initialization
> (number_of_extensions=1, initial_extensions=0x40012cc0) at
> ../../../../../../rtems-4.8.0/c/src/../../cpukit/score/src/userext.c:37
>
> #3  0x40007860 in rtems_initialize_executive_early
> (configuration_table=0x40013930, cpu_table=0x40013908) at
> ../../../../../../rtems-4.8.0/c/src/../../cpukit/sapi/src/exinit.c:152
>
> #4  0x40001924 in boot_card (argc=0, argv=0x0, envp=0x0) at
> ../../../../../../../../rtems-4.8.0/c/src/lib/libbsp/sparc/leon3/../../shared/bootcard.c:117
>
> #5  0x400010dc in zerobss () at
> ../../../../../../../../rtems-4.8.0/c/src/lib/libbsp/sparc/leon3/../../sparc/shared/start.S:339
>
> #6  0x400010dc in zerobss () at
> ../../../../../../../../rtems-4.8.0/c/src/lib/libbsp/sparc/leon3/../../sparc/shared/start.S:339
>
> Backtrace stopped: previous frame identical to this frame (corrupt stack?)
>
> (gdb) p *the_heap
>
> $17 = {free_list = {prev_size = 0, size = 0, next = 0xfffc8040, prev =
> 0xfffc8040}, page_size = 8, min_block_size = 16, begin = 0xfffc8040,
> end = 0xfffd5e50, start = 0xfffc8040, final = 0xfffd5e48, stats =
> {instance = 0,
>
>     size = 56848, free_size = 56840, min_free_size = 56840,
> free_blocks = 1, max_free_blocks = 1, used_blocks = 0, max_search = 0,
> allocs = 0, searches = 0, frees = 0, resizes = 0}}
>
>  
>
> It seems to be blocked on an infinite loop. I presume there has been a
> problem with the installation of rtems that I have not seen since this
> is a well proven version and it is the most basic example.
>
>  
>
> Would you have an idea of what the problem might be?
>
>  
>
> Thanks a lot in advance,
>
> Patricia Lopez Cueva
>
>  
>
>  
>
>
>
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> users at rtems.org
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