(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. 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) -- Kalle Valo -- 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
