Re: Buildworld /rescue failures in 5.1

From: Garance A Drosihn (drosih_at_rpi.edu)
Date: 07/24/03

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    Date: Wed, 23 Jul 2003 19:41:18 -0400
To: kientzle@acm.org, Gordon Tetlow <gordont@gnf.org>

    At 6:41 PM -0400 7/23/03, Garance A Drosihn wrote:
    >Where that error is:
    >
    >make: don't know how to make
    >/usr/obj/usr/src/rescue/rescue//usr/src/sbin/dhclient/client/clparse.o.
    >Stop
    >*** Error code 2
    >1 error
    >*** Error code 2
    >1 error

    Well, that isn't always the error message, but it's always
    something similar to that.

    Now that it takes me only a few minutes to test things, I
    think I'm making some kind of headway. I redid the making
    of rescue with '-j2', and got the error

    make: don't know how to make
    /usr/obj/usr/src/rescue/rescue//usr/src/gnu/usr.bin/tar/addext.o. Stop

    I then compared the files in the directory
        /usr/obj/usr/src/.../usr.bin/tar
    between the attempt which worked, and the attempt which failed.
    The attempt which worked had a '.depend' file which did not
    exist in the attempt which failed.

    Ie, make trying to build addext.o before the .depend file has
    shown up for anything in 'tar'. In the attempt which works,
    that .depend file includes:

    addext.o: /usr/src/contrib/tar/lib/addext.c \
       /usr/src/gnu/usr.bin/tar/config.h /usr/include/paths.h \
       /usr/include/sys/cdefs.h /usr/include/limits.h \
       /usr/include/sys/limits.h /usr/include/machine/_limits.h \
       /usr/include/sys/syslimits.h /usr/include/sys/types.h \
       /usr/include/machine/endian.h /usr/include/sys/_types.h \
       /usr/include/machine/_types.h /usr/include/sys/select.h \
       /usr/include/sys/_sigset.h /usr/include/sys/_timeval.h \
       /usr/include/sys/timespec.h /usr/include/string.h \
       /usr/include/strings.h /usr/include/unistd.h /usr/include/sys/unistd.h \
       /usr/include/errno.h /usr/src/contrib/tar/lib/backupfile.h \
       /usr/src/contrib/tar/lib/dirname.h

    So it is easy to image that this .depend file is crucial to
    successfully making addext.o.

    The .depend file is apparently created by
         /usr/obj/usr/src/rescue/rescue/rescue.mk

    and that in turn says it is generated from rescue.conf
    by crunchgen 0.2. The rescue.mk file includes the rule:

    tar_make:
             (cd $(tar_SRCDIR) && \
                     $(MAKE) $(BUILDOPTS) $(tar_OPTS) depend &&\
                     $(MAKE) $(BUILDOPTS) $(tar_OPTS) $(tar_OBJS))

    and my guess is that construct is not '-j' safe.

    I have no idea how to fix that, or even if I'm on the right
    track, but perhaps the above will be useful to someone who
    understands parallel makes more than I do... 

    -- 
Garance Alistair Drosehn            =   gad@gilead.netel.rpi.edu
Senior Systems Programmer           or  gad@freebsd.org
Rensselaer Polytechnic Institute    or  drosih@rpi.edu
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