Gilles Chanteperdrix wrote: > Jan Kiszka wrote: >> Gilles Chanteperdrix wrote: >>> Jan Kiszka wrote: >>>> Hi Gilles, >>>> >>>> this one requires some fixing too: >>>> >>>> xeno_sem_heap is marked weak. xeno_init_sem_heaps is called once per >>>> initialized skin. It unmaps any existing heap and creates a new one. >>>> That's already fragile during constructor run, but it's lethal during >>>> process runtime, ie. when using dlopen. >>>> >>>> I think the solution is to handle forks separately and only remap in >>>> that case. Digging in this direction now. >>>> >>>> BTW, what triggers the re-run of xeno_init_sem_heaps after a fork so far? >>> It must be done for the child process to get a private heap different >>> from the parent process. I would guess it is handled by pthread_atfork. >> Ah, only the POSIX skin does that. However, sem-heaps must not be >> POSIX-only. OK, patch in the make. > > Actually, xeno_skin_bind_opt should call pthread_atfork, since the child > process should be bound again, whatever the skin.
That's a another thing, but it's true. First of all I just pushed a fix for the sem_heap issue that makes our test case happy. Jan -- Siemens AG, Corporate Technology, CT T DE IT 1 Corporate Competence Center Embedded Linux _______________________________________________ Xenomai-core mailing list Xenomai-core@gna.org https://mail.gna.org/listinfo/xenomai-core
