kernel since 5.6 do not boot anymore on Apple PowerBook

Christophe Leroy christophe.leroy at csgroup.eu
Thu Jul 9 04:44:52 AEST 2020



Le 08/07/2020 à 19:36, Giuseppe Sacco a écrit :
> Hi Cristophe,
> 
> Il giorno mer, 08/07/2020 alle 19.09 +0200, Christophe Leroy ha
> scritto:
>> Hi
>>
>> Le 08/07/2020 à 19:00, Giuseppe Sacco a écrit :
>>> Hello,
>>> while trying to debug a problem using git bisect, I am now at a point
>>> where I cannot build the kernel at all. This is the error message I
>>> get:
>>>
>>> $ LANG=C make ARCH=powerpc \
>>>    CROSS_COMPILE=powerpc-linux- \
>>>    CONFIG_MODULE_COMPRESS_GZIP=true \
>>>    INSTALL_MOD_STRIP=1 CONFIG_MODULE_COMPRESS=1 \
>>>    -j4 INSTALL_MOD_PATH=$BOOT INSTALL_PATH=$BOOT \
>>>    CONFIG_DEBUG_INFO_COMPRESSED=1 \
>>>    install modules_install
>>> make[2]: *** No rule to make target 'vmlinux', needed by
>>
>> Surprising.
>>
>> Did you make any change to Makefiles ?
> 
> No
> 
>> Are you in the middle of a bisect ? If so, if the previous builds
>> worked, I'd do 'git bisect skip'
> 
> Yes, the previous one worked.
> 
>> What's the result with:
>>
>> LANG=C make ARCH=powerpc CROSS_COMPILE=powerpc-linux- vmlinux
> 
> $ LANG=C make ARCH=powerpc CROSS_COMPILE=powerpc-linux- vmlinux
>    CALL    scripts/checksyscalls.sh
>    CALL    scripts/atomic/check-atomics.sh
>    CHK     include/generated/compile.h
>    CC      kernel/module.o
> kernel/module.c: In function 'do_init_module':
> kernel/module.c:3593:2: error: implicit declaration of function
> 'module_enable_ro'; did you mean 'module_enable_x'? [-Werror=implicit-
> function-declaration]
>   3593 |  module_enable_ro(mod, true);
>        |  ^~~~~~~~~~~~~~~~
>        |  module_enable_x
> cc1: some warnings being treated as errors
> make[1]: *** [scripts/Makefile.build:267: kernel/module.o] Error 1
> make: *** [Makefile:1735: kernel] Error 2
> 
> So, should I 'git bisect skip'?

Ah yes, I had the exact same problem last time I bisected.

So yes do 'git bisect skip'. You'll probably hit this problem half a 
dozen of times, but at the end you should get a usefull bisect anyway.

Christophe


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