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Date:   Thu, 30 Nov 2023 10:56:17 -0800
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Subject: Re: [PATCH 5.15 00/69] 5.15.141-rc1 review
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To:     =?UTF-8?Q?Daniel_D=C3=ADaz?= <daniel.diaz@linaro.org>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc:     stable@vger.kernel.org, patches@lists.linux.dev,
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From:   Guenter Roeck <linux@roeck-us.net>
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On 11/30/23 10:11, Daniel Díaz wrote:
> Hello!
> 
> On Thu, 30 Nov 2023 at 11:44, Guenter Roeck <linux@roeck-us.net> wrote:
>> On 11/30/23 09:21, Daniel Díaz wrote:
>>> Hello!
>>>
>>> Lots of failures everywhere:
>>> * clang-17-lkftconfig                 arm64
>>> * clang-17-lkftconfig                 arm64
>>> * clang-17-lkftconfig                 arm64
>>> * clang-lkftconfig                    arm64
>>> * clang-lkftconfig                    arm
>>> * clang-lkftconfig                    i386
>>> * clang-lkftconfig                    x86_64
>>> * gcc-12-lkftconfig                   arm64
>>> * gcc-12-lkftconfig                   arm
>>> * gcc-12-lkftconfig                   i386
>>> * gcc-12-lkftconfig                   x86_64
>>> * gcc-12-lkftconfig-64k_page_size     arm64
>>> * gcc-12-lkftconfig-64k_page_size     arm64
>>> * gcc-12-lkftconfig-armv8_features    arm64
>>> * gcc-12-lkftconfig-debug             arm64
>>> * gcc-12-lkftconfig-debug             arm64
>>> * gcc-12-lkftconfig-debug             arm
>>> * gcc-12-lkftconfig-debug             i386
>>> * gcc-12-lkftconfig-debug             x86_64
>>> * gcc-12-lkftconfig-debug-kmemleak    arm64
>>> * gcc-12-lkftconfig-debug-kmemleak    arm
>>> * gcc-12-lkftconfig-debug-kmemleak    i386
>>> * gcc-12-lkftconfig-debug-kmemleak    x86_64
>>> * gcc-12-lkftconfig-devicetree        arm64
>>> * gcc-12-lkftconfig-kasan             arm64
>>> * gcc-12-lkftconfig-kasan             arm64
>>> * gcc-12-lkftconfig-kasan             x86_64
>>> * gcc-12-lkftconfig-kselftest         arm64
>>> * gcc-12-lkftconfig-kselftest-kernel  arm64
>>> * gcc-12-lkftconfig-kselftest-kernel  arm
>>> * gcc-12-lkftconfig-kselftest-kernel  i386
>>> * gcc-12-lkftconfig-kunit             arm64
>>> * gcc-12-lkftconfig-kunit             arm64
>>> * gcc-12-lkftconfig-kunit             arm
>>> * gcc-12-lkftconfig-kunit             i386
>>> * gcc-12-lkftconfig-kunit             x86_64
>>> * gcc-12-lkftconfig-libgpiod          arm64
>>> * gcc-12-lkftconfig-libgpiod          arm
>>> * gcc-12-lkftconfig-libgpiod          i386
>>> * gcc-12-lkftconfig-libgpiod          x86_64
>>> * gcc-12-lkftconfig-perf              arm64
>>> * gcc-12-lkftconfig-perf-kernel       arm64
>>> * gcc-12-lkftconfig-perf-kernel       arm
>>> * gcc-12-lkftconfig-perf-kernel       i386
>>> * gcc-12-lkftconfig-perf-kernel       x86_64
>>> * gcc-12-lkftconfig-rcutorture        arm64
>>> * gcc-12-lkftconfig-rcutorture        arm64
>>> * gcc-12-lkftconfig-rcutorture        arm
>>> * gcc-12-lkftconfig-rcutorture        i386
>>> * gcc-12-lkftconfig-rcutorture        x86_64
>>>
>>> It's essentially this:
>>>
>>> -----8<-----
>>>     make --silent --keep-going --jobs=8
>>> O=/home/tuxbuild/.cache/tuxmake/builds/1/build ARCH=x86_64 SRCARCH=x86
>>> CROSS_COMPILE=x86_64-linux-gnu- 'CC=sccache x86_64-linux-gnu-gcc'
>>> 'HOSTCC=sccache gcc'
>>>     arch/x86/kernel/smp.o: warning: objtool: sysvec_reboot()+0x51:
>>> unreachable instruction
>>>     x86_64-linux-gnu-ld: kernel/trace/trace_kprobe.o: in function
>>> `__trace_kprobe_create':
>>>     trace_kprobe.c:(.text+0x2f39): undefined reference to
>>> `kallsyms_on_each_symbol'
>>>     x86_64-linux-gnu-ld: kernel/trace/trace_kprobe.o: in function
>>> `create_local_trace_kprobe':
>>>     trace_kprobe.c:(.text+0x384b): undefined reference to
>>> `kallsyms_on_each_symbol'
>>>     make[1]: *** [/builds/linux/Makefile:1227: vmlinux] Error 1
>>>     make[1]: Target '__all' not remade because of errors.
>>>     make: *** [Makefile:226: __sub-make] Error 2
>>>     make: Target '__all' not remade because of errors.
>>> ----->8-----
>>>
>>> It only affects 5.15. Bisection in progress.
>>
>> I guess it will point to
>>
>>>> Francis Laniel <flaniel@linux.microsoft.com>
>>>>       tracing/kprobes: Return EADDRNOTAVAIL when func matches several symbols
> 
> It sure did!:
> 
>    commit 7b4375c36a4c0e1b4b97ccbcdd427db5a460e04f
>    Author: Francis Laniel <flaniel@linux.microsoft.com>
>    Date:   Fri Oct 20 13:42:49 2023 +0300
> 
>        tracing/kprobes: Return EADDRNOTAVAIL when func matches several symbols
> 
>        commit b022f0c7e404887a7c5229788fc99eff9f9a80d5 upstream.
> 
> Reverting that commit made the build pass again.
> 

It looks like it depends on commit d721def7392a ("kallsyms: Make kallsyms_on_each_symbol
generally available"), but that doesn't apply cleanly.

Guenter