Mathieu Desnoyers <[email protected]> writes:
> [...]
> The problem is also in _stp_print_flush, not *only* in relay code:
> void _stp_print_flush (void)
> ...
> spin_lock(&_stp_print_lock);
> ...
> spin_unlock(&_stp_print_lock);
>
> Those will turn into mutexes with -rt.
Indeed, plus systemtap-generated locking code uses rwlocks,
local_irq_save/restore or preempt_disable, in various places. Could
someone point to a place that spells out what would be more
appropriate way of ensuring atomicity while being compatible with -rt?
- FChE
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