Jan Kiszka wrote: > Philippe Gerum wrote: >> Jan Kiszka wrote: >>> Meanwhile I played with some light-weight approach to relax a thread >>> that received a signal (according to do_sigwake_event). Worked, but only >>> once due to a limitation (if not bug) of I-pipe x86: in __ipipe_run_isr, >>> it does not handle the case that a non-root handler may alter the >>> current domain, causing corruptions to the IPIPE_SYNC_FLAG states of the >>> involved domains. >> It is not a bug, this is wanted. ISR must neither change the current >> domain nor migrate CPU; allowing this would open Pandora's box. > > And if there is no way to migrate from within an ISR, we can bury any > attempt to deliver signals to spinning Xenomai threads - or what other > context would remain to Xenomai for triggering migration? >
The two-phase solution I have mentioned would work. > Jan > -- Philippe. _______________________________________________ Xenomai-core mailing list [email protected] https://mail.gna.org/listinfo/xenomai-core
