Re: Unexplained long boot delays [Was Re: [GIT PULL] RCU changes for v6.9]

[Linus Torvalds]

On Tue, 12 Mar 2024 at 14:34, Florian Fainelli <f.fainelli@xxxxxxxxx> wrote:
>
> and here is a log where this fails:
>
> https://gist.github.com/ffainelli/ed08a2b3e853f59343786ebd20364fc8

You could try the 'initcall_debug' kernel command line.

It will make the above *much* noisier, but it might - thanks to all
the new noise - show exactly *what* is being crazy slow to initialize.

Because right now it's just radio silence in between those

  [    1.926435] bcmgenet f0480000.ethernet: GENET 5.0 EPHY: 0x0000
  [  162.148135] unimac-mdio unimac-mdio.0: Broadcom UniMAC MDIO bus

things, and that's presumably because some random initcall there just
takes forever to time out.

             Linus