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    SubjectRe: Check handling of kernel build output directory
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    > From the above we can see that two make's are running in parallel here
    > where only one should run.

    Is this a problem here? - I can omit the parameter "-j".


    > I have seen this before but only in cases where you specified several targets
    > on the make commandline - which you do not do in the make invocation.
    > Just to check it you could do a:
    > $(warning CMD=$(MAKECMDFLAGS)) around the place where SUBARCH is assigned in the
    > top-level Makefile.

    elfring@Sonne:~/Projekte/Linux/Kernel/2.6.23.1> unset KBUILD_OUTPUT && make mrproper && cp
    -p /boot/config-2.6.23.1-0-adjusted .config && export
    KBUILD_OUTPUT=~/Projekte/Linux/Kernel/obj/2.6.23.1/x86_64/adjusted && rm -rf $KBUILD_OUTPUT/*
    Makefile:165: CMD=
    CLEAN .config
    elfring@Sonne:~/Projekte/Linux/Kernel/2.6.23.1> make oldconfig && date && echo
    XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX && make && echo
    YYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYY && date
    /home/elfring/Projekte/Linux/Kernel/2.6.23.1/Makefile:165: CMD=
    GEN /home/elfring/Projekte/Linux/Kernel/obj/linux/2.6.23.1/x86_64/adjusted/Makefile
    scripts/kconfig/conf -o arch/x86_64/Kconfig
    *
    * Linux Kernel Configuration
    *
    *
    * General setup
    *
    [...]
    #
    # configuration written to .config
    #
    Sa 27. Okt 14:23:51 CEST 2007
    XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
    /home/elfring/Projekte/Linux/Kernel/2.6.23.1/Makefile:165: CMD=
    /home/elfring/Projekte/Linux/Kernel/2.6.23.1/Makefile:165: CMD=
    GEN /home/elfring/Projekte/Linux/Kernel/obj/2.6.23.1/x86_64/adjusted/Makefile
    scripts/kconfig/conf -s arch/x86_64/Kconfig
    /home/elfring/Projekte/Linux/Kernel/2.6.23.1/Makefile:165: CMD=
    Using /home/elfring/Projekte/Linux/Kernel/2.6.23.1 as source for kernel
    /home/elfring/Projekte/Linux/Kernel/2.6.23.1 is not clean, please run 'make mrproper'
    in the '/home/elfring/Projekte/Linux/Kernel/2.6.23.1' directory.
    make[1]: *** [prepare3] Fehler 1
    make: *** [_all] Fehler 2


    Are any more steps needed to perform safe Makefile debugging now?
    Is the specific number of (recursive) make calls interesting?


    elfring@Sonne:~/Projekte/Linux/Kernel/2.6.23.1> unset KBUILD_OUTPUT && make mrproper && cp
    -p /boot/config-2.6.23.1-0-adjusted .config && export
    KBUILD_OUTPUT=~/Projekte/Linux/Kernel/obj/2.6.23.1/x86_64/adjusted && rm -rf $KBUILD_OUTPUT/*
    Makefile:165: CMD=
    CLEAN .config
    elfring@Sonne:~/Projekte/Linux/Kernel/2.6.23.1> make silentoldconfig && date && echo
    XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX && make && echo
    YYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYY && date
    /home/elfring/Projekte/Linux/Kernel/2.6.23.1/Makefile:165: CMD=
    HOSTCC scripts/basic/fixdep
    HOSTCC scripts/basic/docproc
    GEN /home/elfring/Projekte/Linux/Kernel/obj/2.6.23.1/x86_64/adjusted/Makefile
    HOSTCC scripts/kconfig/conf.o
    HOSTCC scripts/kconfig/kxgettext.o
    SHIPPED scripts/kconfig/zconf.tab.c
    SHIPPED scripts/kconfig/lex.zconf.c
    SHIPPED scripts/kconfig/zconf.hash.c
    HOSTCC scripts/kconfig/zconf.tab.o
    HOSTLD scripts/kconfig/conf
    scripts/kconfig/conf -s arch/x86_64/Kconfig
    Sa 27. Okt 14:26:53 CEST 2007
    XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
    /home/elfring/Projekte/Linux/Kernel/2.6.23.1/Makefile:165: CMD=
    Using /home/elfring/Projekte/Linux/Kernel/2.6.23.1 as source for kernel
    /home/elfring/Projekte/Linux/Kernel/2.6.23.1 is not clean, please run 'make mrproper'
    in the '/home/elfring/Projekte/Linux/Kernel/2.6.23.1' directory.
    make[1]: *** [prepare3] Fehler 1
    make: *** [_all] Fehler 2


    > Does the issue by any chance go away if you refrain from the
    > command && command && command && command && command && command
    > way of doing things?

    I want to ensure that every command was successfully executed. The return values will be
    ignored if the commands are concatenated by the metacharacter ";". I prefer to use "AND
    lists" here.


    > So you either a .config file or the config directory.

    I would expect that both will be generated in my output directory by a command like "make
    silentoldconfig". Why is the cleanliness check additionally performed on my source
    directory? Should it really matter if I want to concentrate on "objtree"?


    > If you now say this is a SUSE specific problem then I suggest asking SUSE for help.

    I don't want to say that. I indicated a bit about my runtime environment. Is it more
    likely that the Makefile will need an update?

    Regards,
    Markus

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