Hi, for a while we've been seen the following error when compiling the mainline kernel with gcc 11.2 and binutils 2.37: 00:02:32 Cannot find symbol for section 11: .text.unlikely. 00:02:32 kernel/kexec_file.o: failed 00:02:32 make[3]: *** [scripts/Makefile.build:287: kernel/kexec_file.o] Error 1 00:02:32 make[3]: *** Deleting file 'kernel/kexec_file.o' 00:02:32 make[2]: *** [Makefile:1846: kernel] Error 2 00:02:32 make[2]: *** Waiting for unfinished jobs.... The error only happens with ppc64le. I've tested this with cross compilation, but the only reference to the error I found suggests the same happens with the native compiles as well: https://github.com/groeck/linux-build-test/commit/142cbefbc0d37962c9a6c7f28ee415ecd5fd1e98 In case it matters, the config used is the Fedora config with kselftest options enabled, which you can grab from https://gitlab.com/redhat/red-hat-ci-tools/kernel/cki-internal-pipelines/cki-trusted-contributors/-/jobs/1760752896/artifacts/raw/artifacts/kernel-mainline.kernel.org-ppc64le-e4e737bb5c170df6135a127739a9e6148ee3da82.config I've reached out to the Fedora compiler folks and Nick Clifton suggested this is a problem with the kernel: This message comes from the recordmcount tool, which is part of the kernel sources: linux/scripts/recordmcount.[ch] It appears to be triggered when a compiler update causes code to be rearranged. The problem has been reported before in various forums, but in particular I found this reference: https://lore.kernel.org/lkml/20201204165742.3815221-2-arnd@xxxxxxxxxx/ The point of which to me at least is that this is a kernel issue rather than a compiler issue. Ie there must be some weak symbols in kexec_file.o file which need to be moved elsewhere. Is this something that is indeed an issue that should be fixed in the kernel, or should I reach out to someone else? I'm happy to test any patches provided. Thank you, Veronika _______________________________________________ kexec mailing list kexec@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/kexec
