On Mon, May 08, 2017 at 10:32:30PM +0300, Konstantin Khlebnikov wrote: > On Mon, May 8, 2017 at 10:22 PM, Daniel Axtens <[email protected]> wrote:
> > I recently had to debug a problem with these (we hadn't backported > > Konstantin's patches in this area) and this would have saved a lot > > of time/pain. > > Yep, this is worth debug. But I think it should be under compile-time > config option. > Something like CONFIG_DEBUG_VM which enables VM_BUG_ON and VM_WARN_ON. See SCHED_WARN_ON() and feel free to introduce SCHED_WARN_ON_ONCE() if you feel that's needed.
