Messages in this thread | | | Date | Tue, 17 Jul 2018 12:34:34 -0700 | From | isaacm@codeauro ... | Subject | Re: [PATCH v4] stop_machine: Disable preemption after queueing stopper threads |
| |
Alright, we will make a new patch for this. Thanks for the feedback.
Thanks, Isaac Manjarres On 2018-07-17 11:34, Peter Zijlstra wrote: > On Tue, Jul 17, 2018 at 09:30:17AM -0700, Isaac J. Manjarres wrote: >> After cpu_stop_queue_two_works() queues the cpu_stop works >> for the stopper threads, it releases the locks held for >> both threads, which enables preemption, which allows the >> following race condition to occur: > > > Does not apply because an earlier version is already applied. > > https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/kernel/stop_machine.c?id=9fb8d5dc4b649dd190e1af4ead670753e71bf907 > > if there still is a problem, please send a new patch that describes the > remaining problem.
| |