Re: Kernel modules not loading on 15-prerelease

From: bob prohaska <fbsd_at_www.zefox.net>
Date: Wed, 03 Sep 2025 14:56:44 UTC
On Tue, Sep 02, 2025 at 12:30:29PM -0700, Mark Millard wrote:
> 
> You might be able to see some of what is going on via
> a command like:
> 
>  # kldxref -d /boot/kernel/ /boot/modules/ | grep -e kernel -e modules/ | less

Running that command to a file and searching for uftdi and filemon finds


/boot/kernel/filemon.ko
  depends on kernel.1500061 (1500061,1500061)

and 
/boot/kernel/uftdi.ko
  depends on kernel.1500061 (1500061,1500061)

At the same time, I see
# uname -K
1500063
# uname -U
1500061

How can the kernel and modules get out of sync? 

Even then, /usr/src was updated  followed by an immediate
buildworld/buildkernel. In that case, how did world and kernel
become mismatched and remain so for a week or more?

The suggestion to delete /usr/obj is looking unavoidable, are
additional steps warranted?

Thanks for writing!

bob prohaska