Buildresult: linus-rand/arm64-randconfig/arm64-gcc8 built on Jun 12 2020, 14:15

kisskb

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Status:	OK
Date/Time:	Jun 12 2020, 14:15
Duration:	0:12:00.596642
Builder:	ka1
Revision:	Merge tag 'locking-kcsan-2020-06-11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip (`b791d1bdf9212d944d749a5c7ff6febdba241771)`
Target:	linus-rand/arm64-randconfig/arm64-gcc8
Branch:	linus-rand
Compiler:	arm64-gcc8 (aarch64-linux-gcc (GCC) 8.1.0 / GNU ld (GNU Binutils) 2.30)
Config:	randconfig (download)
Log:	Download original Possible warnings (13) .config:6477:warning: override: reassigning to symbol PREVENT_FIRMWARE_BUILD arch/arm64/boot/dts/broadcom/stingray/stingray-usb.dtsi:7.3-14: Warning (dma_ranges_format): /usb:dma-ranges: empty "dma-ranges" property but its #address-cells (1) differs from / (2) arch/arm64/boot/dts/broadcom/stingray/stingray-usb.dtsi:7.3-14: Warning (dma_ranges_format): /usb:dma-ranges: empty "dma-ranges" property but its #size-cells (1) differs from / (2) arch/arm64/boot/dts/broadcom/stingray/stingray-usb.dtsi:7.3-14: Warning (dma_ranges_format): /usb:dma-ranges: empty "dma-ranges" property but its #address-cells (1) differs from / (2) arch/arm64/boot/dts/broadcom/stingray/stingray-usb.dtsi:7.3-14: Warning (dma_ranges_format): /usb:dma-ranges: empty "dma-ranges" property but its #size-cells (1) differs from / (2) arch/arm64/boot/dts/broadcom/stingray/stingray-usb.dtsi:7.3-14: Warning (dma_ranges_format): /usb:dma-ranges: empty "dma-ranges" property but its #address-cells (1) differs from / (2) arch/arm64/boot/dts/broadcom/stingray/stingray-usb.dtsi:7.3-14: Warning (dma_ranges_format): /usb:dma-ranges: empty "dma-ranges" property but its #size-cells (1) differs from / (2) net/core/filter.c:4291:6: warning: unused variable 'ifindex' [-Wunused-variable] net/core/filter.c:4290:14: warning: unused variable 'net' [-Wunused-variable] net/core/filter.c:4289:7: warning: unused variable 'devname' [-Wunused-variable] fs/ntfs/aops.c:1311:1: warning: the frame size of 2416 bytes is larger than 2048 bytes [-Wframe-larger-than=] drivers/mailbox/imx-mailbox.c:611:12: warning: 'imx_mu_resume_noirq' defined but not used [-Wunused-function] drivers/mailbox/imx-mailbox.c:601:12: warning: 'imx_mu_suspend_noirq' defined but not used [-Wunused-function] Full Log # git rev-parse -q --verify b791d1bdf9212d944d749a5c7ff6febdba241771^{commit} b791d1bdf9212d944d749a5c7ff6febdba241771 already have revision, skipping fetch # git checkout -q -f -B kisskb b791d1bdf9212d944d749a5c7ff6febdba241771 # git clean -qxdf # < git log -1 # commit b791d1bdf9212d944d749a5c7ff6febdba241771 # Merge: 9716e57a0195 1f44328ea24c # Author: Linus Torvalds <torvalds@linux-foundation.org> # Date: Thu Jun 11 18:55:43 2020 -0700 # # Merge tag 'locking-kcsan-2020-06-11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip # # Pull the Kernel Concurrency Sanitizer from Thomas Gleixner: # "The Kernel Concurrency Sanitizer (KCSAN) is a dynamic race detector, # which relies on compile-time instrumentation, and uses a # watchpoint-based sampling approach to detect races. # # The feature was under development for quite some time and has already # found legitimate bugs. # # Unfortunately it comes with a limitation, which was only understood # late in the development cycle: # # It requires an up to date CLANG-11 compiler # # CLANG-11 is not yet released (scheduled for June), but it's the only # compiler today which handles the kernel requirements and especially # the annotations of functions to exclude them from KCSAN # instrumentation correctly. # # These annotations really need to work so that low level entry code and # especially int3 text poke handling can be completely isolated. # # A detailed discussion of the requirements and compiler issues can be # found here: # # https://lore.kernel.org/lkml/CANpmjNMTsY_8241bS7=XAfqvZHFLrVEkv_uM4aDUWE_kh3Rvbw@mail.gmail.com/ # # We came to the conclusion that trying to work around compiler # limitations and bugs again would end up in a major trainwreck, so # requiring a working compiler seemed to be the best choice. # # For Continous Integration purposes the compiler restriction is # manageable and that's where most xxSAN reports come from. # # For a change this limitation might make GCC people actually look at # their bugs. Some issues with CSAN in GCC are 7 years old and one has # been 'fixed' 3 years ago with a half baken solution which 'solved' the # reported issue but not the underlying problem. # # The KCSAN developers also ponder to use a GCC plugin to become # independent, but that's not something which will show up in a few # days. # # Blocking KCSAN until wide spread compiler support is available is not # a really good alternative because the continuous growth of lockless # optimizations in the kernel demands proper tooling support" # # * tag 'locking-kcsan-2020-06-11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (76 commits) # compiler_types.h, kasan: Use __SANITIZE_ADDRESS__ instead of CONFIG_KASAN to decide inlining # compiler.h: Move function attributes to compiler_types.h # compiler.h: Avoid nested statement expression in data_race() # compiler.h: Remove data_race() and unnecessary checks from {READ,WRITE}_ONCE() # kcsan: Update Documentation to change supported compilers # kcsan: Remove 'noinline' from __no_kcsan_or_inline # kcsan: Pass option tsan-instrument-read-before-write to Clang # kcsan: Support distinguishing volatile accesses # kcsan: Restrict supported compilers # kcsan: Avoid inserting __tsan_func_entry/exit if possible # ubsan, kcsan: Don't combine sanitizer with kcov on clang # objtool, kcsan: Add kcsan_disable_current() and kcsan_enable_current_nowarn() # kcsan: Add __kcsan_{enable,disable}_current() variants # checkpatch: Warn about data_race() without comment # kcsan: Use GFP_ATOMIC under spin lock # Improve KCSAN documentation a bit # kcsan: Make reporting aware of KCSAN tests # kcsan: Fix function matching in report # kcsan: Change data_race() to no longer require marking racing accesses # kcsan: Move kcsan_{disable,enable}_current() to kcsan-checks.h # ... # < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux-ld --version # < git log --format=%s --max-count=1 b791d1bdf9212d944d749a5c7ff6febdba241771 # < make -s -j 8 ARCH=arm64 O=/kisskb/build/linus-rand_arm64-randconfig_arm64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux- randconfig KCONFIG_SEED=0xD5E3A7BE # Added to kconfig CONFIG_PREVENT_FIRMWARE_BUILD=y # < make -s -j 8 ARCH=arm64 O=/kisskb/build/linus-rand_arm64-randconfig_arm64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux- help # make -s -j 8 ARCH=arm64 O=/kisskb/build/linus-rand_arm64-randconfig_arm64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux- olddefconfig .config:6477:warning: override: reassigning to symbol PREVENT_FIRMWARE_BUILD # make -s -j 8 ARCH=arm64 O=/kisskb/build/linus-rand_arm64-randconfig_arm64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux- /kisskb/src/arch/arm64/boot/dts/broadcom/stingray/stingray-usb.dtsi:7.3-14: Warning (dma_ranges_format): /usb:dma-ranges: empty "dma-ranges" property but its #address-cells (1) differs from / (2) /kisskb/src/arch/arm64/boot/dts/broadcom/stingray/stingray-usb.dtsi:7.3-14: Warning (dma_ranges_format): /usb:dma-ranges: empty "dma-ranges" property but its #size-cells (1) differs from / (2) /kisskb/src/arch/arm64/boot/dts/broadcom/stingray/stingray-usb.dtsi:7.3-14: Warning (dma_ranges_format): /usb:dma-ranges: empty "dma-ranges" property but its #address-cells (1) differs from / (2) /kisskb/src/arch/arm64/boot/dts/broadcom/stingray/stingray-usb.dtsi:7.3-14: Warning (dma_ranges_format): /usb:dma-ranges: empty "dma-ranges" property but its #size-cells (1) differs from / (2) /kisskb/src/arch/arm64/boot/dts/broadcom/stingray/stingray-usb.dtsi:7.3-14: Warning (dma_ranges_format): /usb:dma-ranges: empty "dma-ranges" property but its #address-cells (1) differs from / (2) /kisskb/src/arch/arm64/boot/dts/broadcom/stingray/stingray-usb.dtsi:7.3-14: Warning (dma_ranges_format): /usb:dma-ranges: empty "dma-ranges" property but its #size-cells (1) differs from / (2) /kisskb/src/net/core/filter.c: In function '_bpf_setsockopt': /kisskb/src/net/core/filter.c:4291:6: warning: unused variable 'ifindex' [-Wunused-variable] int ifindex; ^~~~~~~ /kisskb/src/net/core/filter.c:4290:14: warning: unused variable 'net' [-Wunused-variable] struct net net; ^~~ /kisskb/src/net/core/filter.c:4289:7: warning: unused variable 'devname' [-Wunused-variable] char devname[IFNAMSIZ]; ^~~~~~~ /kisskb/src/fs/ntfs/aops.c: In function 'ntfs_write_mst_block': /kisskb/src/fs/ntfs/aops.c:1311:1: warning: the frame size of 2416 bytes is larger than 2048 bytes [-Wframe-larger-than=] } ^ /kisskb/src/drivers/mailbox/imx-mailbox.c:611:12: warning: 'imx_mu_resume_noirq' defined but not used [-Wunused-function] static int imx_mu_resume_noirq(struct device dev) ^~~~~~~~~~~~~~~~~~~ /kisskb/src/drivers/mailbox/imx-mailbox.c:601:12: warning: 'imx_mu_suspend_noirq' defined but not used [-Wunused-function] static int imx_mu_suspend_noirq(struct device *dev) ^~~~~~~~~~~~~~~~~~~~ Completed OK # rm -rf /kisskb/build/linus-rand_arm64-randconfig_arm64-gcc8 # Build took: 0:12:00.596642

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