Hi Peter, Have I addressed your concerns? In my opinion, this is a simple change that adds ABI functionality, without affecting any other parts of the syscalls involved, whether breaking or non-breaking. Like I said in previous replies, POSIX doesn't allow passing a negative number as a successful value, and setting the static priority directly can expose the scheduler to invalid priority values for CFS policies in later syscalls. As far as I can see, this is the only way for usage of posix_spawnattr_setschedparam() to be both compliant _and_ functional for SCHED_NORMAL and SCHED_BATCH. -- Thanks for your time, MCP
