On Wed, Jun 17, 2020 at 09:42:23AM +0200, Sebastian Andrzej Siewior wrote: > On 2020-06-16 13:55:36 [-0300], Marcelo Tosatti wrote: > > > We had this > > > https://lore.kernel.org/linux-mm/20190424111208.24459-1-bigeasy@xxxxxxxxxxxxx/ > > > > Will reply to that thread. Do you want to refresh/resend that patchset or > > should I? > > I don't plan to refresh/resend it because what we have now with local-locks > in v5.8-rc1 works for RT. If your application busy-spins with DPDK (such as FlexRAN does): https://www.slideshare.net/LuminaNetworks/osn-bay-area-feb-2019-meetup-intel-5g-flexran-solution-131647692 Then v5.8-rc1 does not work, right? (remote pagevec locking + remote draining would be necessary). > I dropped that from RT in v5.4.26-rt17 so the previous release should have > the last version of this. Please be aware that Joe Korty reported that > this patch somehow breaks a workload for him. The report never made it > to the list but he confirmed in > https://lkml.kernel.org/r/20200330154110.GA2975@xxxxxxxxxxxxxxxxxxxxxxxx OK, will see if i can reproduce it and assist in the pagevec locking upstreaming effort. Thanks! > > that is problem is gone with the removal of the patch. > > Sebastian
