Re: Linux 5.15-rc1

From: Dave Jones
Date: Mon Sep 13 2021 - 20:39:48 EST


On Mon, Sep 13, 2021 at 06:46:08PM -0500, Bjorn Helgaas wrote:
> On Mon, Sep 13, 2021 at 10:18:18AM -0400, Dave Jones wrote:
> > On Sun, Sep 12, 2021 at 04:58:27PM -0700, Linus Torvalds wrote:
> > > So 5.15 isn't shaping up to be a particularly large release, at least
> > > in number of commits. At only just over 10k non-merge commits, this is
> > > in fact the smallest rc1 we have had in the 5.x series. We're usually
> > > hovering in the 12-14k commit range.
> >
> > This release takes over two minutes longer to boot on one my
> > machines than 5.14. The time just seems to be unaccounted for, even
> > with initcall_debug
>
> Sorry for the inconvenience of this, and thank you very much for doing
> the bisection to track it down.
>
> We *could* revert 7bac54497c3e, but it'd be messy because a bunch of
> follow-up stuff depends on it.
>
> I propose something like the patch below. Would you mind trying it
> out?

This also fixes the problem for me.

Dave