On Sun, May 22, 2022 at 10:45 AM Sedat Dilek <sedat.dilek@xxxxxxxxx> wrote: > > On Fri, May 13, 2022 at 4:31 PM Masahiro Yamada <masahiroy@xxxxxxxxxx> wrote: > > > > On Fri, May 13, 2022 at 8:42 PM Masahiro Yamada <masahiroy@xxxxxxxxxx> wrote: > > > > > > > > > This is the third batch of cleanups in this development cycle. > > > > > > > > > This series is available at > > git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild.git > > lto-cleanup-v6 > > > > Hi Masahiro, > > I cloned the repository on top of latest Linus Git. > > Not able to boot in Quemu - Not able to boot on bare metal. > > $ grep module_layout log_quemu-5.18.0-rc7-2-amd64-clang14-lto.txt > 366:[ 2.173265] floppy: disagrees about version of symbol module_layout > 367:[ 2.198746] scsi_common: disagrees about version of symbol module_layout > 368:[ 2.205573] i2c_piix4: disagrees about version of symbol module_layout > 369:[ 2.210610] psmouse: disagrees about version of symbol module_layout > 370:[ 2.225138] scsi_common: disagrees about version of symbol module_layout > 371:[ 2.235536] scsi_common: disagrees about version of symbol module_layout > 375:Begin: Running /scripts/local-premount ... [ 2.298555] > crc32c_intel: disagrees about version of symbol module_layout > 376:[ 2.303335] crc32c_generic: disagrees about version of symbol > module_layout > 377:[ 2.306667] libcrc32c: disagrees about version of symbol module_layout > > Infos: LLVM-14 + CONFIG_LTO_CLANG_THIN=y > > My linux-config and qemu-log are attached. > Thanks for your testing. I was also able to reproduce this issue. The problematic parts are: [ 2.298555] crc32c_intel: disagrees about version of symbol module_layout [ 2.303335] crc32c_generic: disagrees about version of symbol module_layout [ 2.306667] libcrc32c: disagrees about version of symbol module_layout When CONFIG_LTO_CLANG_THIN=y, I cannot see any __crc_* symbols in "nm vmlinux". Perhaps, LTO might have discarded all the __crc_* symbols from vmlinux, but I am still checking the details... -- Best Regards Masahiro Yamada
