GIT version control wrote:
> Module: xenomai-jki
> Branch: for-upstream
> Commit: 40e5b366397db3dde0ebde861a739dc2cd624b5a
> URL:
> http://git.xenomai.org/?p=xenomai-jki.git;a=commit;h=40e5b366397db3dde0ebde861a739dc2cd624b5a
>
> Author: Jan Kiszka <jan.kis...@siemens.com>
> Date: Fri Feb 12 17:40:09 2010 +0100
>
> Fix remapping of global sem_heap on fork
>
> As xeno_init_sem_heaps might be called multiple times even without fork,
> we must not remap the global heap here. Register an atfork handler
> instead that handles this case and simple reject multiple heap creation
> requests for the same process.
>
> Signed-off-by: Jan Kiszka <jan.kis...@siemens.com>
>
> ---
>
> src/skins/common/sem_heap.c | 29 ++++++++++++++++++-----------
> 1 files changed, 18 insertions(+), 11 deletions(-)
>
> diff --git a/src/skins/common/sem_heap.c b/src/skins/common/sem_heap.c
> index 89f325a..12b256f 100644
> --- a/src/skins/common/sem_heap.c
> +++ b/src/skins/common/sem_heap.c
> @@ -1,6 +1,6 @@
> #include <stdio.h>
> #include <stdlib.h>
> -
> +#include <pthread.h>
> #include <unistd.h>
> #include <sys/types.h>
> #include <sys/stat.h>
> @@ -65,24 +65,31 @@ static void unmap_sem_heap(unsigned long heap_addr,
> unsigned shared)
> munmap((void *) heap_addr, hinfo.size);
> }
>
> +static void remap_on_fork(void)
> +{
> + unmap_sem_heap(xeno_sem_heap[0], 0);
> +
> + if (xeno_sem_heap[0] == (unsigned long) MAP_FAILED) {
> + perror("Xenomai: mmap(local sem heap)");
> + exit(EXIT_FAILURE);
> + }
Looks bogus to me. Where do the remap occur ?
Looks like your test case does not try forking.
--
Gilles.
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