Early kernel boot log?
Konstantin Belousov
kostikbel at gmail.com
Thu Aug 9 08:29:15 UTC 2018
On Thu, Aug 09, 2018 at 08:54:31AM +0100, Johannes Lundberg wrote:
> Hi
>
> So I believe the reason I'm not seeing and printf output in dmesg is that
> it is too early in some functions.
> For example
> machdep.s
> getmemsize()
> add_efi_map_entries()
> etc
>
> However, these functions do contain debug printf statements so if they're
> logging to somewhere, where/how can I see this?
>
> I also tried booting in bhyve too see if I could get any output via serial
> console but nothing there either.
Disable efi console, only leaving comconsole around, then set
debug.late_console=0
in loader.
>
> printfs in cpu_startup() does give me output in dmesg.
>
> Cheers
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