Re: [PATCH v1 1/7] tools: Import cmpxchg and xchg functions

From: kernel test robot
Date: Fri Aug 08 2025 - 02:11:50 EST

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Hello,

kernel test robot noticed "kernel-selftests.kvm.make.fail" on:

commit: 108c296547f3e749d89c270aa6319894f014f01c ("[PATCH v1 1/7] tools: Import cmpxchg and xchg functions")
url: https://github.com/intel-lab-lkp/linux/commits/Yuzhuo-Jing/tools-Import-cmpxchg-and-xchg-functions/20250729-102940
base: https://git.kernel.org/cgit/linux/kernel/git/perf/perf-tools-next.git perf-tools-next
patch link: https://lore.kernel.org/all/20250729022640.3134066-2-yuzhuo@xxxxxxxxxx/
patch subject: [PATCH v1 1/7] tools: Import cmpxchg and xchg functions

in testcase: kernel-selftests
version: kernel-selftests-x86_64-186f3edfdd41-1_20250803
with following parameters:

group: kvm

config: x86_64-rhel-9.4-kselftests
compiler: gcc-12
test machine: 224 threads 2 sockets Intel(R) Xeon(R) Platinum 8480+ (Sapphire Rapids) with 256G memory

(please refer to attached dmesg/kmsg for entire log/backtrace)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <oliver.sang@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-lkp/202508080716.5744484-lkp@xxxxxxxxx

KERNEL SELFTESTS: linux_headers_dir is /usr/src/linux-headers-x86_64-rhel-9.4-kselftests-108c296547f3e749d89c270aa6319894f014f01c
2025-08-05 10:05:53 sed -i s/default_timeout=45/default_timeout=300/ kselftest/runner.sh
2025-08-05 10:05:53 make -j224 TARGETS=kvm
make[1]: Entering directory '/usr/src/perf_selftests-x86_64-rhel-9.4-kselftests-108c296547f3e749d89c270aa6319894f014f01c/tools/testing/selftests/kvm'
gcc -D_GNU_SOURCE= -I/usr/src/perf_selftests-x86_64-rhel-9.4-kselftests-108c296547f3e749d89c270aa6319894f014f01c/tools/testing/selftests/cgroup/lib/include -Wall -Wstrict-prototypes -Wuninitialized -O2 -g -std=gnu99 -Wno-gnu-variable-sized-type-not-at-end -MD -MP -DCONFIG_64BIT -fno-builtin-memcmp -fno-builtin-memcpy -fno-builtin-memset -fno-builtin-strnlen -fno-stack-protector -fno-PIE -fno-strict-aliasing -I/usr/src/perf_selftests-x86_64-rhel-9.4-kselftests-108c296547f3e749d89c270aa6319894f014f01c/tools/testing/selftests/../../../tools/include -I/usr/src/perf_selftests-x86_64-rhel-9.4-kselftests-108c296547f3e749d89c270aa6319894f014f01c/tools/testing/selftests/../../../tools/arch/x86/include -I/usr/src/perf_selftests-x86_64-rhel-9.4-kselftests-108c296547f3e749d89c270aa6319894f014f01c/tools/testing/selftests/../../../usr/include/ -Iinclude -I. -Iinclude/x86 -I ../rseq -I.. -isystem /usr/src/perf_selftests-x86_64-rhel-9.4-kselftests-108c296547f3e749d89c270aa6319894f014f01c/usr/include -march=x86-64-v2 -c demand_paging_test.c -o /usr/src/perf_selftests-x86_64-rhel-9.4-kselftests-108c296547f3e749d89c270aa6319894f014f01c/tools/testing/selftests/kvm/demand_paging_test.o

...

gcc -D_GNU_SOURCE= -I/usr/src/perf_selftests-x86_64-rhel-9.4-kselftests-108c296547f3e749d89c270aa6319894f014f01c/tools/testing/selftests/cgroup/lib/include -Wall -Wstrict-prototypes -Wuninitialized -O2 -g -std=gnu99 -Wno-gnu-variable-sized-type-not-at-end -MD -MP -DCONFIG_64BIT -fno-builtin-memcmp -fno-builtin-memcpy -fno-builtin-memset -fno-builtin-strnlen -fno-stack-protector -fno-PIE -fno-strict-aliasing -I/usr/src/perf_selftests-x86_64-rhel-9.4-kselftests-108c296547f3e749d89c270aa6319894f014f01c/tools/testing/selftests/../../../tools/include -I/usr/src/perf_selftests-x86_64-rhel-9.4-kselftests-108c296547f3e749d89c270aa6319894f014f01c/tools/testing/selftests/../../../tools/arch/x86/include -I/usr/src/perf_selftests-x86_64-rhel-9.4-kselftests-108c296547f3e749d89c270aa6319894f014f01c/tools/testing/selftests/../../../usr/include/ -Iinclude -I. -Iinclude/x86 -I ../rseq -I.. -isystem /usr/src/perf_selftests-x86_64-rhel-9.4-kselftests-108c296547f3e749d89c270aa6319894f014f01c/usr/include -march=x86-64-v2 -c pre_fault_memory_test.c -o /usr/src/perf_selftests-x86_64-rhel-9.4-kselftests-108c296547f3e749d89c270aa6319894f014f01c/tools/testing/selftests/kvm/pre_fault_memory_test.o
gcc -D_GNU_SOURCE= -I/usr/src/perf_selftests-x86_64-rhel-9.4-kselftests-108c296547f3e749d89c270aa6319894f014f01c/tools/testing/selftests/cgroup/lib/include -Wall -Wstrict-prototypes -Wuninitialized -O2 -g -std=gnu99 -Wno-gnu-variable-sized-type-not-at-end -MD -MP -DCONFIG_64BIT -fno-builtin-memcmp -fno-builtin-memcpy -fno-builtin-memset -fno-builtin-strnlen -fno-stack-protector -fno-PIE -fno-strict-aliasing -I/usr/src/perf_selftests-x86_64-rhel-9.4-kselftests-108c296547f3e749d89c270aa6319894f014f01c/tools/testing/selftests/../../../tools/include -I/usr/src/perf_selftests-x86_64-rhel-9.4-kselftests-108c296547f3e749d89c270aa6319894f014f01c/tools/testing/selftests/../../../tools/arch/x86/include -I/usr/src/perf_selftests-x86_64-rhel-9.4-kselftests-108c296547f3e749d89c270aa6319894f014f01c/tools/testing/selftests/../../../usr/include/ -Iinclude -Ix86 -Iinclude/x86 -I ../rseq -I.. -isystem /usr/src/perf_selftests-x86_64-rhel-9.4-kselftests-108c296547f3e749d89c270aa6319894f014f01c/usr/include -march=x86-64-v2 -c x86/nx_huge_pages_test.c -o /usr/src/perf_selftests-x86_64-rhel-9.4-kselftests-108c296547f3e749d89c270aa6319894f014f01c/tools/testing/selftests/kvm/x86/nx_huge_pages_test.o
In file included from /usr/src/perf_selftests-x86_64-rhel-9.4-kselftests-108c296547f3e749d89c270aa6319894f014f01c/tools/testing/selftests/../../../tools/include/linux/bits.h:34,
from /usr/src/perf_selftests-x86_64-rhel-9.4-kselftests-108c296547f3e749d89c270aa6319894f014f01c/tools/testing/selftests/../../../tools/arch/x86/include/asm/msr-index.h:5,
from include/x86/processor.h:13,
from include/x86/apic.h:11,
from x86/fix_hypercall_test.c:13:
/usr/src/perf_selftests-x86_64-rhel-9.4-kselftests-108c296547f3e749d89c270aa6319894f014f01c/tools/testing/selftests/../../../tools/include/linux/overflow.h:31: warning: "is_signed_type" redefined
31 | #define is_signed_type(type) (((type)(-1)) < (type)1)
|
In file included from include/kvm_test_harness.h:11,
from x86/fix_hypercall_test.c:12:
../kselftest_harness.h:754: note: this is the location of the previous definition
754 | #define is_signed_type(var) (!!(((__typeof__(var))(-1)) < (__typeof__(var))1))
|
In file included from x86/svm_nested_soft_inject_test.c:11:
/usr/src/perf_selftests-x86_64-rhel-9.4-kselftests-108c296547f3e749d89c270aa6319894f014f01c/tools/testing/selftests/../../../tools/include/asm/../../arch/x86/include/asm/atomic.h:79:28: error: expected declaration specifiers or ‘...’ before ‘(’ token
79 | static __always_inline int atomic_fetch_or(int i, atomic_t *v)
| ^~~~~~~~~~~~~~~
/usr/src/perf_selftests-x86_64-rhel-9.4-kselftests-108c296547f3e749d89c270aa6319894f014f01c/tools/testing/selftests/../../../tools/include/asm/../../arch/x86/include/asm/atomic.h:79:28: error: expected declaration specifiers or ‘...’ before ‘(’ token
79 | static __always_inline int atomic_fetch_or(int i, atomic_t *v)
| ^~~~~~~~~~~~~~~
/usr/src/perf_selftests-x86_64-rhel-9.4-kselftests-108c296547f3e749d89c270aa6319894f014f01c/tools/testing/selftests/../../../tools/include/asm/../../arch/x86/include/asm/atomic.h:79:28: error: expected declaration specifiers or ‘...’ before numeric constant
79 | static __always_inline int atomic_fetch_or(int i, atomic_t *v)
| ^~~~~~~~~~~~~~~
In file included from /usr/src/perf_selftests-x86_64-rhel-9.4-kselftests-108c296547f3e749d89c270aa6319894f014f01c/tools/testing/selftests/../../../tools/include/linux/bits.h:34,
from /usr/src/perf_selftests-x86_64-rhel-9.4-kselftests-108c296547f3e749d89c270aa6319894f014f01c/tools/testing/selftests/../../../tools/include/linux/bitops.h:14,
from /usr/src/perf_selftests-x86_64-rhel-9.4-kselftests-108c296547f3e749d89c270aa6319894f014f01c/tools/testing/selftests/../../../tools/include/linux/hashtable.h:13,
from include/kvm_util.h:11,
from x86/userspace_msr_exit_test.c:11:
/usr/src/perf_selftests-x86_64-rhel-9.4-kselftests-108c296547f3e749d89c270aa6319894f014f01c/tools/testing/selftests/../../../tools/include/linux/overflow.h:31: warning: "is_signed_type" redefined
31 | #define is_signed_type(type) (((type)(-1)) < (type)1)
|
In file included from include/kvm_test_harness.h:11,
from x86/userspace_msr_exit_test.c:9:
../kselftest_harness.h:754: note: this is the location of the previous definition
754 | #define is_signed_type(var) (!!(((__typeof__(var))(-1)) < (__typeof__(var))1))
|
cc1: note: unrecognized command-line option ‘-Wno-gnu-variable-sized-type-not-at-end’ may have been intended to silence earlier diagnostics
make[1]: *** [Makefile.kvm:299: /usr/src/perf_selftests-x86_64-rhel-9.4-kselftests-108c296547f3e749d89c270aa6319894f014f01c/tools/testing/selftests/kvm/x86/svm_nested_soft_inject_test.o] Error 1
make[1]: *** Waiting for unfinished jobs....
In file included from /usr/src/perf_selftests-x86_64-rhel-9.4-kselftests-108c296547f3e749d89c270aa6319894f014f01c/tools/testing/selftests/../../../tools/include/linux/bits.h:34,
from /usr/src/perf_selftests-x86_64-rhel-9.4-kselftests-108c296547f3e749d89c270aa6319894f014f01c/tools/testing/selftests/../../../tools/include/linux/bitops.h:14,
from /usr/src/perf_selftests-x86_64-rhel-9.4-kselftests-108c296547f3e749d89c270aa6319894f014f01c/tools/testing/selftests/../../../tools/include/linux/hashtable.h:13,
from include/kvm_util.h:11,
from x86/sync_regs_test.c:20:
/usr/src/perf_selftests-x86_64-rhel-9.4-kselftests-108c296547f3e749d89c270aa6319894f014f01c/tools/testing/selftests/../../../tools/include/linux/overflow.h:31: warning: "is_signed_type" redefined
31 | #define is_signed_type(type) (((type)(-1)) < (type)1)
|
In file included from include/kvm_test_harness.h:11,
from x86/sync_regs_test.c:18:
../kselftest_harness.h:754: note: this is the location of the previous definition
754 | #define is_signed_type(var) (!!(((__typeof__(var))(-1)) < (__typeof__(var))1))
|
In file included from include/kvm_test_harness.h:11,
from x86/vmx_pmu_caps_test.c:17:
../kselftest_harness.h:754: warning: "is_signed_type" redefined
754 | #define is_signed_type(var) (!!(((__typeof__(var))(-1)) < (__typeof__(var))1))
|
In file included from /usr/src/perf_selftests-x86_64-rhel-9.4-kselftests-108c296547f3e749d89c270aa6319894f014f01c/tools/testing/selftests/../../../tools/include/linux/bits.h:34,
from /usr/src/perf_selftests-x86_64-rhel-9.4-kselftests-108c296547f3e749d89c270aa6319894f014f01c/tools/testing/selftests/../../../tools/include/linux/bitops.h:14,
from /usr/src/perf_selftests-x86_64-rhel-9.4-kselftests-108c296547f3e749d89c270aa6319894f014f01c/tools/testing/selftests/../../../tools/include/linux/bitmap.h:7,
from x86/vmx_pmu_caps_test.c:15:
/usr/src/perf_selftests-x86_64-rhel-9.4-kselftests-108c296547f3e749d89c270aa6319894f014f01c/tools/testing/selftests/../../../tools/include/linux/overflow.h:31: note: this is the location of the previous definition
31 | #define is_signed_type(type) (((type)(-1)) < (type)1)
|
In file included from memslot_perf_test.c:12:
/usr/src/perf_selftests-x86_64-rhel-9.4-kselftests-108c296547f3e749d89c270aa6319894f014f01c/tools/testing/selftests/../../../tools/include/asm/../../arch/x86/include/asm/atomic.h:79:28: error: expected declaration specifiers or ‘...’ before ‘(’ token
79 | static __always_inline int atomic_fetch_or(int i, atomic_t *v)
| ^~~~~~~~~~~~~~~
/usr/src/perf_selftests-x86_64-rhel-9.4-kselftests-108c296547f3e749d89c270aa6319894f014f01c/tools/testing/selftests/../../../tools/include/asm/../../arch/x86/include/asm/atomic.h:79:28: error: expected declaration specifiers or ‘...’ before ‘(’ token
79 | static __always_inline int atomic_fetch_or(int i, atomic_t *v)
| ^~~~~~~~~~~~~~~
/usr/src/perf_selftests-x86_64-rhel-9.4-kselftests-108c296547f3e749d89c270aa6319894f014f01c/tools/testing/selftests/../../../tools/include/asm/../../arch/x86/include/asm/atomic.h:79:28: error: expected declaration specifiers or ‘...’ before numeric constant
79 | static __always_inline int atomic_fetch_or(int i, atomic_t *v)
| ^~~~~~~~~~~~~~~
cc1: note: unrecognized command-line option ‘-Wno-gnu-variable-sized-type-not-at-end’ may have been intended to silence earlier diagnostics
make[1]: *** [Makefile.kvm:299: /usr/src/perf_selftests-x86_64-rhel-9.4-kselftests-108c296547f3e749d89c270aa6319894f014f01c/tools/testing/selftests/kvm/memslot_perf_test.o] Error 1
cc1: note: unrecognized command-line option ‘-Wno-gnu-variable-sized-type-not-at-end’ may have been intended to silence earlier diagnostics
cc1: note: unrecognized command-line option ‘-Wno-gnu-variable-sized-type-not-at-end’ may have been intended to silence earlier diagnostics
cc1: note: unrecognized command-line option ‘-Wno-gnu-variable-sized-type-not-at-end’ may have been intended to silence earlier diagnostics
cc1: note: unrecognized command-line option ‘-Wno-gnu-variable-sized-type-not-at-end’ may have been intended to silence earlier diagnostics
make[1]: Leaving directory '/usr/src/perf_selftests-x86_64-rhel-9.4-kselftests-108c296547f3e749d89c270aa6319894f014f01c/tools/testing/selftests/kvm'
make: *** [Makefile:207: all] Error 2

The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20250808/202508080716.5744484-lkp@xxxxxxxxx

--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki

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