Buildresult: linus-rand/x86_64-randconfig/x86_64-gcc11 built on Mar 30 2022, 12:49

kisskb

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Status:	Failed
Date/Time:	Mar 30 2022, 12:49
Duration:	0:06:53.677341
Builder:	ka7
Revision:	fs: fd tables have to be multiples of BITS_PER_LONG (`1c24a186398f59c80adb9a967486b65c1423a59d)`
Target:	linus-rand/x86_64-randconfig/x86_64-gcc11
Branch:	linus-rand
Compiler:	x86_64-gcc11 (x86_64-linux-gcc (GCC) 11.1.0 / GNU ld (GNU Binutils) 2.36.1)
Config:	randconfig (download)
Log:	Download original Possible errors drivers/platform/x86/amd-pmc.c:878: undefined reference to `acpi_unregister_lps0_dev' drivers/platform/x86/amd-pmc.c:862: undefined reference to `acpi_register_lps0_dev' make[1]: * [Makefile:1154: vmlinux] Error 1 make: * [Makefile:219: __sub-make] Error 2 Possible warnings (12) .config:7125:warning: override: reassigning to symbol STANDALONE .config:7126:warning: override: reassigning to symbol PREVENT_FIRMWARE_BUILD .config:7131:warning: override: reassigning to symbol GCC_PLUGIN_LATENT_ENTROPY arch/x86/crypto/chacha-x86_64.prelink.o: warning: objtool: chacha_2block_xor_avx512vl() falls through to next function chacha_8block_xor_avx512vl() arch/x86/crypto/chacha-x86_64.prelink.o: warning: objtool: chacha_4block_xor_avx512vl() falls through to next function chacha_8block_xor_avx512vl() arch/x86/crypto/poly1305-x86_64.prelink.o: warning: objtool: poly1305_blocks_avx() falls through to next function poly1305_blocks_x86_64() arch/x86/crypto/poly1305-x86_64.prelink.o: warning: objtool: poly1305_emit_avx() falls through to next function poly1305_emit_x86_64() arch/x86/crypto/poly1305-x86_64.prelink.o: warning: objtool: poly1305_blocks_avx2() falls through to next function poly1305_blocks_x86_64() arch/x86/crypto/poly1305-x86_64.prelink.o: warning: objtool: poly1305_blocks_avx512() falls through to next function poly1305_blocks_x86_64() net/ipv6/ip6mr.c:1656:14: warning: unused variable 'do_wrmifwhole' [-Wunused-variable] drivers/gpu/drm/amd/amdgpu/amdgpu_object.c:494:2: warning: #warning Please enable CONFIG_MTRR and CONFIG_X86_PAT for better performance thanks to write-combining [-Wcpp] 494 \| #warning Please enable CONFIG_MTRR and CONFIG_X86_PAT for better performance \ Full Log # git rev-parse -q --verify 1c24a186398f59c80adb9a967486b65c1423a59d^{commit} 1c24a186398f59c80adb9a967486b65c1423a59d already have revision, skipping fetch # git checkout -q -f -B kisskb 1c24a186398f59c80adb9a967486b65c1423a59d # git clean -qxdf # < git log -1 # commit 1c24a186398f59c80adb9a967486b65c1423a59d # Author: Linus Torvalds <torvalds@linux-foundation.org> # Date: Tue Mar 29 15:06:39 2022 -0700 # # fs: fd tables have to be multiples of BITS_PER_LONG # # This has always been the rule: fdtables have several bitmaps in them, # and as a result they have to be sized properly for bitmaps. We walk # those bitmaps in chunks of 'unsigned long' in serveral cases, but even # when we don't, we use the regular kernel bitops that are defined to work # on arrays of 'unsigned long', not on some byte array. # # Now, the distinction between arrays of bytes and 'unsigned long' # normally only really ends up being noticeable on big-endian systems, but # Fedor Pchelkin and Alexey Khoroshilov reported that copy_fd_bitmaps() # could be called with an argument that wasn't even a multiple of # BITS_PER_BYTE. And then it fails to do the proper copy even on # little-endian machines. # # The bug wasn't in copy_fd_bitmap(), but in sane_fdtable_size(), which # didn't actually sanitize the fdtable size sufficiently, and never made # sure it had the proper BITS_PER_LONG alignment. # # That's partly because the alignment historically came not from having to # explicitly align things, but simply from previous fdtable sizes, and # from count_open_files(), which counts the file descriptors by walking # them one 'unsigned long' word at a time and thus naturally ends up doing # sizing in the proper 'chunks of unsigned long'. # # But with the introduction of close_range(), we now have an external # source of "this is how many files we want to have", and so # sane_fdtable_size() needs to do a better job. # # This also adds that explicit alignment to alloc_fdtable(), although # there it is mainly just for documentation at a source code level. The # arithmetic we do there to pick a reasonable fdtable size already aligns # the result sufficiently. # # In fact,clang notices that the added ALIGN() in that function doesn't # actually do anything, and does not generate any extra code for it. # # It turns out that gcc ends up confusing itself by combining a previous # constant-sized shift operation with the variable-sized shift operations # in roundup_pow_of_two(). And probably due to that doesn't notice that # the ALIGN() is a no-op. But that's a (tiny) gcc misfeature that doesn't # matter. Having the explicit alignment makes sense, and would actually # matter on a 128-bit architecture if we ever go there. # # This also adds big comments above both functions about how fdtable sizes # have to have that BITS_PER_LONG alignment. # # Fixes: 60997c3d45d9 ("close_range: add CLOSE_RANGE_UNSHARE") # Reported-by: Fedor Pchelkin <aissur0002@gmail.com> # Reported-by: Alexey Khoroshilov <khoroshilov@ispras.ru> # Link: https://lore.kernel.org/all/20220326114009.1690-1-aissur0002@gmail.com/ # Tested-and-acked-by: Christian Brauner <brauner@kernel.org> # Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> # < /opt/cross/kisskb/korg/gcc-11.1.0-nolibc/x86_64-linux/bin/x86_64-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-11.1.0-nolibc/x86_64-linux/bin/x86_64-linux-ld --version # < git log --format=%s --max-count=1 1c24a186398f59c80adb9a967486b65c1423a59d # < make -s -j 32 ARCH=x86_64 O=/kisskb/build/linus-rand_x86_64-randconfig_x86_64-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/x86_64-linux/bin/x86_64-linux- randconfig # Added to kconfig CONFIG_STANDALONE=y # Added to kconfig CONFIG_PREVENT_FIRMWARE_BUILD=y # Added to kconfig CONFIG_CC_STACKPROTECTOR_STRONG=n # Added to kconfig CONFIG_GCC_PLUGINS=n # Added to kconfig CONFIG_GCC_PLUGIN_CYC_COMPLEXITY=n # Added to kconfig CONFIG_GCC_PLUGIN_SANCOV=n # Added to kconfig CONFIG_GCC_PLUGIN_LATENT_ENTROPY=n # Added to kconfig CONFIG_BPF_PRELOAD=n # Added to kconfig # < make -s -j 32 ARCH=x86_64 O=/kisskb/build/linus-rand_x86_64-randconfig_x86_64-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/x86_64-linux/bin/x86_64-linux- help # make -s -j 32 ARCH=x86_64 O=/kisskb/build/linus-rand_x86_64-randconfig_x86_64-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/x86_64-linux/bin/x86_64-linux- olddefconfig .config:7125:warning: override: reassigning to symbol STANDALONE .config:7126:warning: override: reassigning to symbol PREVENT_FIRMWARE_BUILD .config:7131:warning: override: reassigning to symbol GCC_PLUGIN_LATENT_ENTROPY # make -s -j 32 ARCH=x86_64 O=/kisskb/build/linus-rand_x86_64-randconfig_x86_64-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/x86_64-linux/bin/x86_64-linux- arch/x86/crypto/chacha-x86_64.prelink.o: warning: objtool: chacha_2block_xor_avx512vl() falls through to next function chacha_8block_xor_avx512vl() arch/x86/crypto/chacha-x86_64.prelink.o: warning: objtool: chacha_4block_xor_avx512vl() falls through to next function chacha_8block_xor_avx512vl() arch/x86/crypto/poly1305-x86_64.prelink.o: warning: objtool: poly1305_blocks_avx() falls through to next function poly1305_blocks_x86_64() arch/x86/crypto/poly1305-x86_64.prelink.o: warning: objtool: poly1305_emit_avx() falls through to next function poly1305_emit_x86_64() arch/x86/crypto/poly1305-x86_64.prelink.o: warning: objtool: poly1305_blocks_avx2() falls through to next function poly1305_blocks_x86_64() arch/x86/crypto/poly1305-x86_64.prelink.o: warning: objtool: poly1305_blocks_avx512() falls through to next function poly1305_blocks_x86_64() /kisskb/src/net/ipv6/ip6mr.c: In function 'ip6_mroute_setsockopt': /kisskb/src/net/ipv6/ip6mr.c:1656:14: warning: unused variable 'do_wrmifwhole' [-Wunused-variable] 1656 \| bool do_wrmifwhole; \| ^~~~~~~~~~~~~ /kisskb/src/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c: In function 'amdgpu_bo_support_uswc': /kisskb/src/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c:494:2: warning: #warning Please enable CONFIG_MTRR and CONFIG_X86_PAT for better performance thanks to write-combining [-Wcpp] 494 \| #warning Please enable CONFIG_MTRR and CONFIG_X86_PAT for better performance \ \| ^~~~~~~ /opt/cross/kisskb/korg/gcc-11.1.0-nolibc/x86_64-linux/bin/x86_64-linux-ld: vmlinux.o: in function `amd_pmc_remove': /kisskb/src/drivers/platform/x86/amd-pmc.c:878: undefined reference to `acpi_unregister_lps0_dev' /opt/cross/kisskb/korg/gcc-11.1.0-nolibc/x86_64-linux/bin/x86_64-linux-ld: vmlinux.o: in function `amd_pmc_probe': /kisskb/src/drivers/platform/x86/amd-pmc.c:862: undefined reference to `acpi_register_lps0_dev' make[1]: * [/kisskb/src/Makefile:1154: vmlinux] Error 1 make: * [Makefile:219: __sub-make] Error 2 Command 'make -s -j 32 ARCH=x86_64 O=/kisskb/build/linus-rand_x86_64-randconfig_x86_64-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/x86_64-linux/bin/x86_64-linux- ' returned non-zero exit status 2 # rm -rf /kisskb/build/linus-rand_x86_64-randconfig_x86_64-gcc11 # Build took: 0:06:53.677341

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