Bug 215567
| Summary: | build failure when PPC_64S_HASH_MMU=n is selected in kernel .config | ||
|---|---|---|---|
| Product: | Platform Specific/Hardware | Reporter: | Erhard F. (erhard_f) |
| Component: | PPC-64 | Assignee: | platform_ppc-64 |
| Status: | RESOLVED CODE_FIX | ||
| Severity: | normal | CC: | christophe.leroy, mopsfelder |
| Priority: | P1 | ||
| Hardware: | PPC-64 | ||
| OS: | Linux | ||
| Kernel Version: | 5.17-rc2 | Subsystem: | |
| Regression: | No | Bisected commit-id: | |
| Attachments: | kernel .config (kernel 5.17-rc2, Talos II) | ||
Hi, Erhard. Thanks for reporting the issue. I've sent a fix proposal for this: https://lists.ozlabs.org/pipermail/linuxppc-dev/2022-March/240698.html Please let me know if the proposed fix worked for you. You can reply here on Bugzilla or to the list with your 'Tested-by:' tag. Thank you! Murilo I just tested your patch top of 5.17-rc5. It applies and build continues but fails later with: [...] CC lib/asn1_decoder.o GEN lib/oid_registry_data.c CC lib/oid_registry.o CC lib/ubsan.o CC lib/sbitmap.o AR lib/built-in.a CC [M] lib/crc-ccitt.o CC [M] lib/crc-itu-t.o GEN .version CHK include/generated/compile.h LD vmlinux.o MODPOST vmlinux.symvers MODINFO modules.builtin.modinfo GEN modules.builtin LD .tmp_vmlinux.kallsyms1 ld: arch/powerpc/kexec/file_load_64.o: in function `.arch_kexec_kernel_image_probe': file_load_64.c:(.text+0x1be8): undefined reference to `.add_htab_mem_range' make: *** [Makefile:1155: vmlinux] Error 1 For this linking error, in arch/powerpc/include/asm/kexec_ranges.h change the #ifdef to CONFIG_PPC_64S_HASH_MMU instead of CONFIG_PPC_BOOK3S_64 and it should build. Erhard, would you mind trying the v2? https://lists.ozlabs.org/pipermail/linuxppc-dev/2022-March/240715.html Christophe, thanks for the suggestion. That's exactly what I did in the v2. Your 2nd patch solved the issue. Thanks Murilo! Build completes and the Talos boots fine into the patched 5.17-rc5. 5.17-rc7 builds fine again as the patch got included meanwhile. Closing. |
Created attachment 300391 [details] kernel .config (kernel 5.17-rc2, Talos II) [...] CC arch/powerpc/kernel/stacktrace.o CC arch/powerpc/kernel/setup_64.o arch/powerpc/kernel/setup_64.c: In function 'setup_per_cpu_areas': arch/powerpc/kernel/setup_64.c:811:21: error: 'mmu_linear_psize' undeclared (first use in this function); did you mean 'mmu_virtual_psize'? 811 | if (mmu_linear_psize == MMU_PAGE_4K) | ^~~~~~~~~~~~~~~~ | mmu_virtual_psize arch/powerpc/kernel/setup_64.c:811:21: note: each undeclared identifier is reported only once for each function it appears in make[2]: *** [scripts/Makefile.build:288: arch/powerpc/kernel/setup_64.o] Fehler 1 Got this with PPC_64S_HASH_MMU=n on my Talos II. When PPC_64S_HASH_MMU is enabled the kernel builds ok.