Hi Greg,
Some notes below:
On 30/11/23 11:14 pm, Guenter Roeck wrote:
On 11/30/23 09:21, Daniel Díaz wrote:
Hello!
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 have seen this too in our testing.
I guess it will point to
Francis Laniel flaniel@linux.microsoft.com tracing/kprobes: Return EADDRNOTAVAIL when func matches several symbols
Note:
1. This above commit also have a fix upstream, 926fe783c8a6 ("tracing/kprobes: Fix symbol counting logic by looking at modules as well")
2. I see the patch causing build failure is also queued in 5.10, 5.4 and 4.19, 4.14 [1]
Thanks, Harshit
[1] https://git.kernel.org/pub/scm/linux/kernel/git/stable/stable-queue.git/tree...
Guenter