On Sun, Aug 6, 2023 at 10:39 PM Wei Liu <wei.liu@xxxxxxxxxx> wrote: > > On Mon, Aug 07, 2023 at 02:22:38PM +1000, Stephen Rothwell wrote: > > Hi all, > > > > After merging the hyperv tree, today's linux-next build (x86_64 > > allmodconfig) failed like this: > > > > drivers/pci/controller/pci-hyperv.o: warning: objtool: .altinstr_replacement+0x0: weirdly overlapping alternative! 11 != 6 > > drivers/hv/hv_balloon.o: warning: objtool: .altinstr_replacement+0x0: weirdly overlapping alternative! 11 != 6 > > drivers/hv/hv_vmbus.o: warning: objtool: .altinstr_replacement+0x3: weirdly overlapping alternative! 10 != 5 > > vmlinux.o: warning: objtool: .altinstr_replacement+0x633: weirdly overlapping alternative! 11 != 6 > > incomplete ORC unwind tables in file: vmlinux > > Failed to sort kernel tables > > > > I have no idea what caused this. Hi Stephen, My kernel source was checked out from the Hyper-V tree's hyperv-next branch last Friday, which had Tianyu's 8 patches. I'm able to repro the same build failure in a Ubuntu 22.04 VM with gcc (Ubuntu 11.4.0-1ubuntu1~22.04) 11.4: I run the below commands: make mrproper make allmodconfig make -j128 make -j128 ... LD [M] net/qrtr/qrtr-tun.ko LD [M] net/qrtr/qrtr-mhi.ko LD [M] virt/lib/irqbypass.ko LD [M] arch/x86/video/fbdev.ko make: *** [Makefile:234: __sub-make] Error 2 make -j128 DESCEND objtool INSTALL libsubcmd_headers CALL scripts/checksyscalls.sh CHK kernel/kheaders_data.tar.xz UPD include/generated/utsversion.h CC init/version-timestamp.o LD .tmp_vmlinux.kallsyms1 NM .tmp_vmlinux.kallsyms1.syms KSYMS .tmp_vmlinux.kallsyms1.S AS .tmp_vmlinux.kallsyms1.S LD .tmp_vmlinux.kallsyms2 NM .tmp_vmlinux.kallsyms2.syms KSYMS .tmp_vmlinux.kallsyms2.S AS .tmp_vmlinux.kallsyms2.S LD vmlinux NM System.map SORTTAB vmlinux incomplete ORC unwind tables in file: vmlinux Failed to sort kernel tables make[2]: *** [scripts/Makefile.vmlinux:36: vmlinux] Error 1 make[2]: *** Deleting file 'vmlinux' make[1]: *** [/opt/linux-next/Makefile:1250: vmlinux] Error 2 make[1]: *** Waiting for unfinished jobs.... make: *** [Makefile:234: __sub-make] Error 2 If I revert Tianyu's patches by "git diff v6.5-rc4 | patch -Rp1", the build can succeed. If I apply the the patches, I get the same failure: drivers/hv/hv_balloon.o: warning: objtool: .altinstr_replacement+0x0: weirdly overlapping alternative! 11 != 6 ... drivers/pci/controller/pci-hyperv.o: warning: objtool: .altinstr_replacement+0x0: weirdly overlapping alternative! 11 != 6 ... drivers/hv/hv_vmbus.o: warning: objtool: .altinstr_replacement+0x3: weirdly overlapping alternative! 10 != 5 ... AR built-in.a AR vmlinux.a LD vmlinux.o vmlinux.o: warning: objtool: .altinstr_replacement+0x633: weirdly overlapping alternative! 11 != 6 OBJCOPY modules.builtin.modinfo GEN modules.builtin GEN .vmlinux.objs MODPOST Module.symvers CC .vmlinux.export.o UPD include/generated/utsversion.h CC init/version-timestamp.o LD .tmp_vmlinux.kallsyms1 NM .tmp_vmlinux.kallsyms1.syms KSYMS .tmp_vmlinux.kallsyms1.S AS .tmp_vmlinux.kallsyms1.S LD .tmp_vmlinux.kallsyms2 NM .tmp_vmlinux.kallsyms2.syms KSYMS .tmp_vmlinux.kallsyms2.S AS .tmp_vmlinux.kallsyms2.S LD vmlinux NM System.map SORTTAB vmlinux incomplete ORC unwind tables in file: vmlinux Failed to sort kernel tables make[2]: *** [scripts/Makefile.vmlinux:36: vmlinux] Error 1 make[2]: *** Deleting file 'vmlinux' make[1]: *** [/opt/linux-next/Makefile:1250: vmlinux] Error 2 make[1]: *** Waiting for unfinished jobs.... ... make: *** [Makefile:234: __sub-make] Error 2 It turns out that I already made a fix https://github.com/dcui/linux/commit/c4db45f6256248435b2a303b264ecbb41320c41d which can fix the build failure and fix a crash issue (see https://lwn.net/ml/linux-kernel/SA1PR21MB1335A21D5D037FE88D9CF820BF0EA@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/ ) Thanks, Dexuan > /me scratches head. > > > I have used the hyperv tree from next-20230804 for today. > > I've reverted that series from my tree. Thanks for the heads up. > > Thanks, > Wei.
