On Tue 03-11-20 13:32:28, Minchan Kim wrote: > On Tue, Nov 03, 2020 at 10:35:50AM +0100, Michal Hocko wrote: > > On Mon 02-11-20 12:29:24, Suren Baghdasaryan wrote: > > [...] > > > To follow up on this. Should I post an RFC implementing SIGKILL_SYNC > > > which in addition to sending a kill signal would also reap the > > > victim's mm in the context of the caller? Maybe having some code will > > > get the discussion moving forward? > > > > Yeah, having a code, even preliminary, might help here. This definitely > > needs a good to go from process management people as that proper is land > > full of surprises... > > Just to remind a idea I suggested to reuse existing concept > > fd = pidfd_open(victim process) > fdatasync(fd); > close(fd); I must have missed this proposal. Anyway, are you suggesting fdatasync to act as a destructive operation? -- Michal Hocko SUSE Labs