World? It looks like there's a version mismatch between the kernel and modules.

-M

On Thu, Feb 28, 2019 at 7:11 PM Alan Somers <asom...@freebsd.org> wrote:
>
> On Thu, Feb 28, 2019 at 6:40 PM Matthew Macy <mm...@freebsd.org> wrote:
> >
> > to config add:
> > options LINDEBUGFS
> > options GCOV
> >
> > compile kernel with gcc (otherwise it will be a no-op)
> >
> > sysctl debug.gcov.enable=1
> >
> > mount -t debugfs debugfs /sys/kernel/debug
> >
> > (or wherever) and the output artifacts will appear under gcov/<kernel
> > build path> - you need to be root to see the artifacts
> >
> > gcov can then generate the results as it would normally from the
> > profiling and the build time artifacts
> >
> > bug reports welcome
> >
> >
> > -M
>
> Here's a bug report: I rebuilt the kernel but boot fails with this
> error.  Do I need to rebuild world too?
>
> Mounting local filesystems:kldload: fdescfs.ko: lost base for reltab
> linker_load_file: /boot/kernel/fdescfs.ko - unsupported file type
> mount: fdescfs: Operation not supported by device
> Mounting /etc/fstab filesystems failed, will retry after root mount hold 
> release
> kldload: fdescfs.ko: lost base for reltab
> linker_load_file: /boot/kernel/fdescfs.ko - unsupported file type
> mount: fdescfs: Operation not supported by device
> .
> Mounting /etc/fstab filesystems failed, startup aborted
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