On Fri, Mar 18, 2022 at 11:54 AM Minchan Kim <minchan@xxxxxxxxxx> wrote: > > On Fri, Mar 18, 2022 at 10:32:07AM -0700, Minchan Kim wrote: > > On Fri, Mar 18, 2022 at 09:30:09AM -0700, Ivan Babrou wrote: > > > On Wed, Mar 16, 2022 at 11:26 AM Ivan Babrou <ivan@xxxxxxxxxxxxxx> wrote: > > > > I'm making an internal build and will push it to some location to see > > > > how it behaves, but it might take a few days to get any sort of > > > > confidence in the results (unless it breaks immediately). > > > > > > > > I've also pushed my patch that disables SWP_SYNCHRONOUS_IO to a few > > > > locations yesterday to see how it fares. > > > > > > I have some updates before the weekend. There are two experimental groups: > > > > > > * My patch that removes the SWP_SYNCHRONOUS_IO flag. There are 704 > > > machines in this group across 5 datacenters with cumulative uptime of > > > 916 days. > > > * Minchan's patch to remove swap_slot_free_notify. There are 376 > > > machines in this group across 3 datacenters with cumulative uptime of > > > 240 days. > > > > > > Our machines take a couple of hours to start swapping anything after > > > boot, and I discounted these two hours from the cumulative uptime. > > > > > > Neither of these two groups experienced unexpected coredumps or > > > rocksdb corruptions. > > > > > > I think at this point it's reasonable to proceed with Minchan's patch > > > (including a backport). > > > > Let me cook the patch and then will post it. > > > > Thanks for the testing as well as reporting, Ivan! > > From 1ede54d46f0b1958bfc624f17fe709637ef8f12a Mon Sep 17 00:00:00 2001 > From: Minchan Kim <minchan@xxxxxxxxxx> > Date: Tue, 15 Mar 2022 14:14:23 -0700 > Subject: [PATCH] mm: fix unexpected zeroed page mapping with zram swap Is there any action needed from me to make sure that this lands into the mm tree and eventually into stable releases?
