On Thu, 27 Oct 2016 11:10:03 +0300 Kalle Valo <kvalo@xxxxxxxxxxxxxx> wrote: > (Adding Thorsten because of a serious regression and Steven because he > tried to fix something in the same commit) > > Nicholas Piggin <npiggin@xxxxxxxxx> writes: > > > On Wed, 19 Oct 2016 16:38:14 +0200 > > Michal Marek <mmarek@xxxxxxxx> wrote: > > > >> Dne 18.10.2016 v 03:34 Nicholas Piggin napsal(a): > >> > We should probably just bring all these arch patches through the > >> > kbuild tree. > >> > > >> > I'm sorry for the breakage: I didn't realize it broke the build with > >> > some configs, otherwise I would have given Michal a heads up before > >> > his pull request, and worked to get this stuff in first. > >> > >> It breaks with some binutils versions only (and only with > >> CONFIG_MODVERSIONS=y, of course). > > > > Yeah this seems to be the issue, it apparently slipped past all the > > automated builds. It seems like the existing CRC warnings in the tree > > only trigger in rare circumstances too, so something could be a bit > > fragile there. > > I upgraded from 4.8 to 4.9-rc2 and noticed that kernel modules fail to > load (log below). After investigating for some time I found this thread > and apparently this is not still fixed, at least not in Linus' tree. > > Reverting 784d5699eddc5 fixed the issue for me. As I don't see any fix > available (please correct me if I'm wrong) we should just revert that > commit until it's properly fixed. With these two patches together, does it work for you? http://marc.info/?l=linux-arch&m=147653546809512&w=2 http://marc.info/?l=linux-kernel&m=147669851906489&w=2 It would be helpful if you could test and let us know, because there seems to be a very tiny number of configs and toolchains that causes problems. > > Also note that there's a related fix from Steven: > > [PATCH] x86: Fix export for mcount and __fentry__ > https://marc.info/?l=linux-kernel&m=147733572502413 > > For compiling the kernel I'm using Ubuntu 12.04: > > ii binutils 2.22-6ubuntu1.4 GNU assembler, linker and binary utilities > ii gcc 4:4.6.3-1ubuntu5 GNU C compiler > > The kernel is running on a separate machine with Ubuntu 14.04. > > [ 110.703414] bluetooth: disagrees about version of symbol __get_user_2 > [ 110.703416] bluetooth: Unknown symbol __get_user_2 (err -22) > [ 110.703429] bluetooth: disagrees about version of symbol __put_user_2 > [ 110.703430] bluetooth: Unknown symbol __put_user_2 (err -22) > [ 110.703579] bluetooth: disagrees about version of symbol __put_user_4 > [ 110.703580] bluetooth: Unknown symbol __put_user_4 (err -22) > [ 110.703669] bluetooth: disagrees about version of symbol __put_user_1 > [ 110.703670] bluetooth: Unknown symbol __put_user_1 (err -22) > [ 110.703688] bluetooth: disagrees about version of symbol mcount > [ 110.703689] bluetooth: Unknown symbol mcount (err -22) > I haven't seen that one before. Did you definitely make and install new modules? Thanks, Nick -- To unsubscribe from this list: send the line "unsubscribe linux-kbuild" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
