On Fri, Sep 1, 2017 at 9:38 PM, Peter Zijlstra <pet...@infradead.org> wrote: > On Fri, Sep 01, 2017 at 07:16:29PM +0900, Byungchul Park wrote: > >> It would be gone _only_ at the time the history overrun, and then it >> will be built again. So, you are wrong.
s/it will be built again/the acquisition will be added into the xhlock array again/ Now, better to understand? > How will it ever be build again? You only ever spawn the worker thread > _ONCE_, then it runs lots and lots of works. > > We _could_ go fix it, but I really don't see it being worth the time and We don't need to fix it spending time and effort. Just *revert* all your wrong patches. > effort, its a few isolated locks inside the kthread/workqueue code. Please point out what I am wrong and what you want to say, *with* my latest example. Doing it with my example would be very helpful to understand you. -- Thanks, Byungchul