Maybe this is stating the obvious, but please avoid the temptation to shortcut a bisect, once it's been started. There's been so many times I guessed wrong what is the offending commit in the remaining set, all the way to the end. Still having the issue after a revert is one of the most frustrating things.
Alex On Tue, 22 Aug 2023 at 14:28, Richard Purdie <[email protected]> wrote: > > On Tue, 2023-08-22 at 15:20 +0300, Mikko Rapeli wrote: > > Hi, > > > > On Tue, Aug 22, 2023 at 12:47:04PM +0100, Richard Purdie wrote: > > > so between 6.1.38 and 6.1.39? > > > > Maybe: > > > > commit b1cdc56bc177c2e182c204bb08ad4e87bfd67942 > > Author: Paul E. McKenney <[email protected]> > > AuthorDate: Wed Apr 26 11:11:29 2023 -0700 > > Commit: Greg Kroah-Hartman <[email protected]> > > CommitDate: Wed Jul 19 16:21:01 2023 +0200 > > > > rcu-tasks: Stop rcu_tasks_invoke_cbs() from using never-onlined CPUs > > > > and > > > > commit d58f0f0ce6332ffeb406540295cc49732c26fb51 > > Author: Paul E. McKenney <[email protected]> > > AuthorDate: Thu Apr 27 10:50:47 2023 -0700 > > Commit: Greg Kroah-Hartman <[email protected]> > > CommitDate: Wed Jul 19 16:21:01 2023 +0200 > > > > rcu: Make rcu_cpu_starting() rely on interrupts being disabled > > > > ? > > > > master branch seems to have larger set of changes to rcu. > > I wondered that but my test says > deda0761dc6161f03278da4679d96d4727992e91 is "good" which is after > those. > > > Maybe locking debugging options could help to find this on every boot. > > Perhaps. I think given where I'm at now I'll just try and bisect it... > > > Then wasn't > > > > commit 77cc52f1b8d76c995648cb4286e57142cac8ce0a > > Author: Wen Yang <[email protected]> > > AuthorDate: Fri May 5 00:12:53 2023 +0800 > > Commit: Greg Kroah-Hartman <[email protected]> > > CommitDate: Wed Jul 19 16:20:59 2023 +0200 > > > > tick/rcu: Fix bogus ratelimit condition > > > > [ Upstream commit a7e282c77785c7eabf98836431b1f029481085ad ] > > > > causing some issues too? > > Yes, but I think this is something different... > > Cheers, > > Richard > > >
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