From owner-freebsd-stable  Wed Sep  1 10:36:14 1999
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To: freebsd-stable@freebsd.org
Subject: STABLE SMP build failure for today and yesterday
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Date: Wed, 01 Sep 1999 10:34:35 -0700
Message-ID: <1972.936207275@pinhead.parag.codegen.com>
From: Parag Patel <parag@cgt.com>
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Today being Sep 1, and yesterday being Aug 31.  This is different from
the kern_sig.c problem reported earlier.

cc -c -O -Wreturn-type -Wcomment -Wredundant-decls -Wimplicit  -Wnested-externs -Wstrict-prototypes -Wmissing-prototypes  -Wpointer-arith -Winline -Wuninitialized -Wformat -Wunused  -fformat-extensions -ansi -g -nostdinc -I- -I. -I../.. -I../../../include  -DKERNEL -DVM_STACK -include opt_global.h -elf  ../../i386/i386/mp_machdep.c
../../i386/i386/mp_machdep.c: In function `smp_rendezvous_action':
../../i386/i386/mp_machdep.c:2687: warning: implicit declaration of function `atomic_add_int'
../../i386/i386/mp_machdep.c: In function `smp_rendezvous':
../../i386/i386/mp_machdep.c:2711: `smp_rv_lock' undeclared (first use this function)
../../i386/i386/mp_machdep.c:2711: (Each undeclared identifier is reported only once
../../i386/i386/mp_machdep.c:2711: for each function it appears in.)
../../i386/i386/mp_machdep.c:2723: `PSL_I' undeclared (first use this function)
machine/cpufunc.h:419: warning: inlining failed in call to `write_eflags'
../../i386/i386/mp_machdep.c:2723: warning: called from here
*** Error code 1

I looked into mp_machdep.c, and it looks like a couple of header files
atomic.h and psl.h have been removed.  However, adding these files back
in, there's no definition of smp_rv_lock, which is used in the new
smp_rendezvous routine at the end.  It's also missing from init_locks,
also in the same file.  Adding these back in, and it fails to link, not
being able to find "KPSEL".  This appears to be a symbol generated by
the CURRENT genassym but not the STABLE.

At this point, I decided that I'm over my head with the SMP code. :)

Non-SMP kernel builds work just fine, as did buildworld and installworld
as of Aug 31 evening.  The test machine is running the results of that
buildworld, and only the SMP kernel builds are failing.  (Well, aside
from the new kern_sig.c problem.)


	-- Parag Patel


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