On Fri, Dec 02, 2022 at 12:56:40PM +0100, Thorsten Leemhuis wrote: > On 21.11.22 21:54, Andrew Morton wrote: > > On Mon, 21 Nov 2022 18:34:34 +0000 bugzilla-daemon@xxxxxxxxxx wrote: > > > >> https://bugzilla.kernel.org/show_bug.cgi?id=216646 > >> > >> --- Comment #6 from Mikhail Pletnev (mmp.dux@xxxxxxxxx) --- > >> i can't figure out how to use git send-email, so i will post this here instead > >> > >>>>> git bisect good 1854bc6e2420472676c5c90d3d6b15f6cd640e40 > >> > >>> I suspect this is where your bisection went astray. This should have > >>> been bad and it led you to the wrong commit. > >> > >> so i've applied your suggestion and did some more bisecting and arrived at > >> this: > > That was 793917d997df ("mm/readahead: Add large folio readahead") which > is also from Matthew. > > > Folks, thanks for continuing to work on this. > > Well, since then nothing happened. :-/ Or have I missed something? > > Matthew, do you still have this on your radar? No, things tend to fall off my radar after a week or two of inactivity. Particularly since I went on holiday. Since I wasn't cc'd on the bug, the activity was completely invisible to me. Landing on 793917d997df makes a lot more sense. That's where we actually start using large folios. It doesn't really help narrow down the problem. I have an idea for what it might be; patch to try will follow. But I'll need feedback by email.
