Date: Sat, 05 Oct 2013 20:51:30 +0000 From: "Thomas Mueller" <mueller6724@bellsouth.net> To: freebsd-stable@freebsd.org Cc: Rick Macklem <rmacklem@uoguelph.ca>, Shane Ambler <FreeBSD@ShaneWare.Biz> Subject: Re: Build failure for 9.2-RELEASE Message-ID: <2C.CE.15529.2DB70525@cdptpa-oedge01>
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from Shane Ambler:
> On 03/10/2013 17:14, Thomas Mueller wrote:
> > I failed with "make buildworld" on 9.2, building from a 9.2
> > prerelease.
>
> > svn revision on system to be built was 255986.
>
> > uname -a shows
>
> > FreeBSD amelia2 9.2-PRERELEASE FreeBSD 9.2-PRERELEASE #17 r254196:
> > Sun Aug 11 00:36:49 UTC 2013
> > root@amelia2:/usr/obj/usr/src/sys/SANDY amd64
> PRERELEASE would be from stable/9 - RELEASE from releng/9.2
> Did you svn up on the stable branch or checkout releng/9.2?
> > I had MODULES_WITH_WORLD=yes in /etc/make.conf to avoid the
> > redundancy and annoyance of rebuilding modules every time I build a
> > new kernel, like if I want a more portable kernel (for a USB-stick
> > install) as well as my custom kernel.
>
> > Point of failure seemed to be in module dtrace.
>
> > I have in kernel config
>
> > #options KDTRACE_FRAME # Ensure frames are compiled
> > in #options KDTRACE_HOOKS # Kernel DTrace hooks
>
> > Maybe I need to reenable these?
> The 9.2 release notes says "DTrace hooks have been enabled by default in
> the GENERIC kernel" so they should already be enabled.
I failed again on "make buildworld". svn revision 256062
This time, problem module was rdma.
I see the DTrace hooks were enabled in GENERIC, but not in my config from 9.1.
I did svn up on stable/9 branch.
Maybe building modules with world is too hazardous?
But then how do I avoid building all modules redundantly whenever I rebuild the kernel from same source tree?
It seems the system is hell-bent on building all modules every time, even if I have "-DNO_MODULES" on make command line, or
WITHOUT_MODULES=ulpt (or usb/ulpt) in make.conf or src.conf .
What modules do I need anyway, and how do I know so as not to miss something vital? Most seem to duplicate functions that already appear in kernel config.
I believe Linux kernel config offers y (build as part of kernel), m (build as module) and n (don't build).
I don't need to support every Ethernet adapter and every outdated SCSI adapter.
Tom
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