On 12/19/2019 7:20 PM, Gregory Rose wrote:
Bisecting is hard when you're doing it across 10s of thousands of Linux revisions but after a few fitsand starts I think it's this patch: commit 9b9a3f20cbe0ba9269cde6fff9f9c69907e150cf Author: Masahiro Yamada <yamada.masah...@socionext.com> Date: Thu Aug 15 01:06:23 2019 +0900 kbuild: split final module linking out into Makefile.modfinal I think splitting the modpost and linking modules into separate Makefiles will be useful especially when more complex build steps come in. The main motivation of this commit is to integrate the proposed klp-convert feature cleanly. I moved the logging 'Building modules, stage 2.' to Makefile.modpost to avoid the code duplication although I do not know whether or not this message is needed in the first place. Signed-off-by: Masahiro Yamada <yamada.masah...@socionext.com> I don't understand why it's causing the problem. I'm no big specialist in Linux kernel kbuild foo but I will investigate and see what I come up with. Whatever the case it is a bifurcation between kernels earlier than 5.4. We'll need to adjust our out of treee builds accordingly I suspect. I have no scope on that yet. - Greg
Confirmed this is the patch that causes our out of tree kernel module builds to fail on 5.4 based kernels. I reset my tree to upstream master, ran 'make clean'. I then checked out commit 2a7f77c 'xprtrdma: Clean up xprt_rdma_set_connect_timeout()' which is the commit just before the above commit. I built that kernel and was able to successfully build our out of tree kernel modules against that build. I then checked out the very next patch, the one above, and rebuilt the kernel. Then our OOT kernel module builds fail during the modpost stage as I've stated before emitting thousands of lines of errors. I'm looking at the patch and trying to figure out what we need to do to fix our build to work against 5.4. - Greg _______________________________________________ dev mailing list d...@openvswitch.org https://mail.openvswitch.org/mailman/listinfo/ovs-dev
