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X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Hello, kernel test robot noticed "WARNING:suspicious_RCU_usage" on: commit: 5053ab0c89ee4ba827db6a4453af277321cb1a2e ("lib/xarray: introduce a new helper xas_get_order") https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master [test failed on linux-next/master 8568bb2ccc278f344e6ac44af6ed010a90aa88dc] in testcase: boot compiler: clang-17 test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 16G (please refer to attached dmesg/kmsg for entire log/backtrace) +---------------------------------------------------------------------+------------+------------+ | | cc93de5055 | 5053ab0c89 | +---------------------------------------------------------------------+------------+------------+ | WARNING:suspicious_RCU_usage | 0 | 6 | | include/linux/xarray.h:#suspicious_rcu_dereference_check()usage | 0 | 6 | | include/linux/xarray.h:#suspicious_rcu_dereference_protected()usage | 0 | 6 | +---------------------------------------------------------------------+------------+------------+ 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 | Closes: https://lore.kernel.org/oe-lkp/202404061058.f2256e40-lkp@intel.com [ 242.400377][ T1] WARNING: suspicious RCU usage [ 242.401381][ T1] 6.9.0-rc2-00150-g5053ab0c89ee #1 Tainted: G W N [ 242.402989][ T1] ----------------------------- [ 242.404031][ T1] include/linux/xarray.h:1201 suspicious rcu_dereference_check() usage! [ 242.405805][ T1] [ 242.405805][ T1] other info that might help us debug this: [ 242.405805][ T1] [ 242.407877][ T1] [ 242.407877][ T1] rcu_scheduler_active = 2, debug_locks = 1 [ 242.409774][ T1] no locks held by swapper/0/1. [ 242.410827][ T1] [ 242.410827][ T1] stack backtrace: [ 242.412091][ T1] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G W N 6.9.0-rc2-00150-g5053ab0c89ee #1 [ 242.413055][ T1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 [ 242.413055][ T1] Call Trace: [ 242.413055][ T1] [ 242.413055][ T1] dump_stack_lvl (lib/dump_stack.c:116) [ 242.413055][ T1] lockdep_rcu_suspicious (include/linux/context_tracking.h:122) [ 242.413055][ T1] xas_start (include/linux/xarray.h:?) [ 242.413055][ T1] xas_store (lib/xarray.c:237 lib/xarray.c:789) [ 242.413055][ T1] ? do_raw_spin_unlock (arch/x86/include/asm/atomic.h:23) [ 242.413055][ T1] ? xas_load (lib/xarray.c:237) [ 242.413055][ T1] check_xas_get_order (lib/test_xarray.c:?) [ 242.413055][ T1] xarray_checks (lib/test_xarray.c:2070) [ 242.413055][ T1] do_one_initcall (init/main.c:1238) [ 242.413055][ T1] ? __cfi_xarray_checks (lib/test_xarray.c:2054) [ 242.413055][ T1] ? kasan_save_track (arch/x86/include/asm/current.h:49 mm/kasan/common.c:60 mm/kasan/common.c:69) [ 242.413055][ T1] ? kasan_save_track (mm/kasan/common.c:48 mm/kasan/common.c:68) [ 242.413055][ T1] ? __kasan_kmalloc (mm/kasan/common.c:391) [ 242.413055][ T1] ? __kmalloc_noprof (include/linux/kasan.h:211 mm/slub.c:4186 mm/slub.c:4199) [ 242.413055][ T1] ? do_initcalls (init/main.c:1310) [ 242.432382][ T1] ? kernel_init_freeable (init/main.c:1552) [ 242.432382][ T1] ? kernel_init (init/main.c:1439) [ 242.432382][ T1] ? ret_from_fork (arch/x86/kernel/process.c:153) [ 242.432382][ T1] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:256) [ 242.432382][ T1] ? parameq (kernel/params.c:81) [ 242.432382][ T1] ? parameq (include/linux/fortify-string.h:250 kernel/params.c:99) [ 242.432382][ T1] ? __cfi_ignore_unknown_bootoption (init/main.c:1285) [ 242.432382][ T1] ? parse_args (kernel/params.c:?) [ 242.432382][ T1] ? __kasan_kmalloc (mm/kasan/common.c:391) [ 242.432382][ T1] do_initcall_level (init/main.c:1299) [ 242.432382][ T1] do_initcalls (init/main.c:1313) [ 242.432382][ T1] kernel_init_freeable (init/main.c:1552) [ 242.432382][ T1] ? __cfi_kernel_init (init/main.c:1429) [ 242.432382][ T1] kernel_init (init/main.c:1439) [ 242.432382][ T1] ? __cfi_kernel_init (init/main.c:1429) [ 242.432382][ T1] ret_from_fork (arch/x86/kernel/process.c:153) [ 242.432382][ T1] ? __cfi_kernel_init (init/main.c:1429) [ 242.432382][ T1] ret_from_fork_asm (arch/x86/entry/entry_64.S:256) [ 242.432382][ T1] [ 242.451896][ T1] [ 242.452554][ T1] ============================= [ 242.453552][ T1] WARNING: suspicious RCU usage [ 242.454581][ T1] 6.9.0-rc2-00150-g5053ab0c89ee #1 Tainted: G W N [ 242.456217][ T1] ----------------------------- [ 242.457261][ T1] include/linux/xarray.h:1217 suspicious rcu_dereference_check() usage! [ 242.458920][ T1] [ 242.458920][ T1] other info that might help us debug this: [ 242.458920][ T1] [ 242.461156][ T1] [ 242.461156][ T1] rcu_scheduler_active = 2, debug_locks = 1 [ 242.462797][ T1] no locks held by swapper/0/1. [ 242.463791][ T1] [ 242.463791][ T1] stack backtrace: [ 242.465126][ T1] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G W N 6.9.0-rc2-00150-g5053ab0c89ee #1 [ 242.467116][ T1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 [ 242.468617][ T1] Call Trace: [ 242.468617][ T1] [ 242.468617][ T1] dump_stack_lvl (lib/dump_stack.c:116) [ 242.468617][ T1] lockdep_rcu_suspicious (include/linux/context_tracking.h:122) [ 242.468617][ T1] xas_descend (include/linux/xarray.h:?) [ 242.468617][ T1] xas_store (lib/xarray.c:244 lib/xarray.c:789) [ 242.468617][ T1] ? do_raw_spin_unlock (arch/x86/include/asm/atomic.h:23) [ 242.468617][ T1] ? xas_load (lib/xarray.c:244) [ 242.468617][ T1] check_xas_get_order (lib/test_xarray.c:?) [ 242.468617][ T1] xarray_checks (lib/test_xarray.c:2070) [ 242.468617][ T1] do_one_initcall (init/main.c:1238) [ 242.468617][ T1] ? __cfi_xarray_checks (lib/test_xarray.c:2054) [ 242.468617][ T1] ? kasan_save_track (arch/x86/include/asm/current.h:49 mm/kasan/common.c:60 mm/kasan/common.c:69) [ 242.468617][ T1] ? kasan_save_track (mm/kasan/common.c:48 mm/kasan/common.c:68) [ 242.468617][ T1] ? __kasan_kmalloc (mm/kasan/common.c:391) [ 242.468617][ T1] ? __kmalloc_noprof (include/linux/kasan.h:211 mm/slub.c:4186 mm/slub.c:4199) [ 242.468617][ T1] ? do_initcalls (init/main.c:1310) [ 242.468617][ T1] ? kernel_init_freeable (init/main.c:1552) [ 242.468617][ T1] ? kernel_init (init/main.c:1439) [ 242.468617][ T1] ? ret_from_fork (arch/x86/kernel/process.c:153) [ 242.488373][ T1] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:256) [ 242.488373][ T1] ? parameq (kernel/params.c:81) [ 242.488373][ T1] ? parameq (include/linux/fortify-string.h:250 kernel/params.c:99) [ 242.488373][ T1] ? __cfi_ignore_unknown_bootoption (init/main.c:1285) [ 242.488373][ T1] ? parse_args (kernel/params.c:?) [ 242.488373][ T1] ? __kasan_kmalloc (mm/kasan/common.c:391) [ 242.488373][ T1] do_initcall_level (init/main.c:1299) [ 242.488373][ T1] do_initcalls (init/main.c:1313) [ 242.488373][ T1] kernel_init_freeable (init/main.c:1552) [ 242.488373][ T1] ? __cfi_kernel_init (init/main.c:1429) [ 242.488373][ T1] kernel_init (init/main.c:1439) [ 242.488373][ T1] ? __cfi_kernel_init (init/main.c:1429) [ 242.488373][ T1] ret_from_fork (arch/x86/kernel/process.c:153) [ 242.488373][ T1] ? __cfi_kernel_init (init/main.c:1429) [ 242.488373][ T1] ret_from_fork_asm (arch/x86/entry/entry_64.S:256) [ 242.488373][ T1] [ 242.505758][ T1] [ 242.506807][ T1] ============================= [ 242.507842][ T1] WARNING: suspicious RCU usage [ 242.508960][ T1] 6.9.0-rc2-00150-g5053ab0c89ee #1 Tainted: G W N [ 242.510512][ T1] ----------------------------- [ 242.511564][ T1] include/linux/xarray.h:1226 suspicious rcu_dereference_protected() usage! [ 242.513461][ T1] [ 242.513461][ T1] other info that might help us debug this: [ 242.513461][ T1] [ 242.515528][ T1] [ 242.515528][ T1] rcu_scheduler_active = 2, debug_locks = 1 [ 242.517330][ T1] no locks held by swapper/0/1. [ 242.518364][ T1] [ 242.518364][ T1] stack backtrace: [ 242.519666][ T1] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G W N 6.9.0-rc2-00150-g5053ab0c89ee #1 [ 242.520702][ T1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 [ 242.520702][ T1] Call Trace: [ 242.520702][ T1] [ 242.520702][ T1] dump_stack_lvl (lib/dump_stack.c:116) [ 242.520702][ T1] lockdep_rcu_suspicious (include/linux/context_tracking.h:122) [ 242.520702][ T1] xas_store (include/linux/xarray.h:?) [ 242.520702][ T1] check_xas_get_order (lib/test_xarray.c:?) [ 242.520702][ T1] xarray_checks (lib/test_xarray.c:2070) [ 242.520702][ T1] do_one_initcall (init/main.c:1238) [ 242.520702][ T1] ? __cfi_xarray_checks (lib/test_xarray.c:2054) [ 242.520702][ T1] ? kasan_save_track (arch/x86/include/asm/current.h:49 mm/kasan/common.c:60 mm/kasan/common.c:69) [ 242.520702][ T1] ? kasan_save_track (mm/kasan/common.c:48 mm/kasan/common.c:68) [ 242.520702][ T1] ? __kasan_kmalloc (mm/kasan/common.c:391) [ 242.520702][ T1] ? __kmalloc_noprof (include/linux/kasan.h:211 mm/slub.c:4186 mm/slub.c:4199) [ 242.520702][ T1] ? do_initcalls (init/main.c:1310) [ 242.520702][ T1] ? kernel_init_freeable (init/main.c:1552) [ 242.520702][ T1] ? kernel_init (init/main.c:1439) [ 242.520702][ T1] ? ret_from_fork (arch/x86/kernel/process.c:153) [ 242.520702][ T1] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:256) [ 242.520702][ T1] ? parameq (kernel/params.c:81) [ 242.520702][ T1] ? parameq (include/linux/fortify-string.h:250 kernel/params.c:99) [ 242.520702][ T1] ? __cfi_ignore_unknown_bootoption (init/main.c:1285) [ 242.520702][ T1] ? parse_args (kernel/params.c:?) [ 242.520702][ T1] ? __kasan_kmalloc (mm/kasan/common.c:391) [ 242.520702][ T1] do_initcall_level (init/main.c:1299) [ 242.520702][ T1] do_initcalls (init/main.c:1313) [ 242.520702][ T1] kernel_init_freeable (init/main.c:1552) [ 242.520702][ T1] ? __cfi_kernel_init (init/main.c:1429) [ 242.520702][ T1] kernel_init (init/main.c:1439) [ 242.520702][ T1] ? __cfi_kernel_init (init/main.c:1429) [ 242.520702][ T1] ret_from_fork (arch/x86/kernel/process.c:153) [ 242.520702][ T1] ? __cfi_kernel_init (init/main.c:1429) [ 242.520702][ T1] ret_from_fork_asm (arch/x86/entry/entry_64.S:256) [ 242.520702][ T1] [ 242.560253][ T1] [ 242.560872][ T1] ============================= [ 242.561861][ T1] WARNING: suspicious RCU usage [ 242.562854][ T1] 6.9.0-rc2-00150-g5053ab0c89ee #1 Tainted: G W N [ 242.564501][ T1] ----------------------------- [ 242.565558][ T1] include/linux/xarray.h:1242 suspicious rcu_dereference_protected() usage! [ 242.567300][ T1] [ 242.567300][ T1] other info that might help us debug this: [ 242.567300][ T1] [ 242.569488][ T1] [ 242.569488][ T1] rcu_scheduler_active = 2, debug_locks = 1 [ 242.571117][ T1] no locks held by swapper/0/1. [ 242.572108][ T1] [ 242.572108][ T1] stack backtrace: [ 242.573465][ T1] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G W N 6.9.0-rc2-00150-g5053ab0c89ee #1 [ 242.575431][ T1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 [ 242.576938][ T1] Call Trace: [ 242.576938][ T1] [ 242.576938][ T1] dump_stack_lvl (lib/dump_stack.c:116) [ 242.576938][ T1] lockdep_rcu_suspicious (include/linux/context_tracking.h:122) [ 242.576938][ T1] xas_store (include/linux/xarray.h:?) [ 242.576938][ T1] check_xas_get_order (lib/test_xarray.c:?) [ 242.576938][ T1] xarray_checks (lib/test_xarray.c:2070) [ 242.576938][ T1] do_one_initcall (init/main.c:1238) [ 242.576938][ T1] ? __cfi_xarray_checks (lib/test_xarray.c:2054) [ 242.576938][ T1] ? kasan_save_track (arch/x86/include/asm/current.h:49 mm/kasan/common.c:60 mm/kasan/common.c:69) [ 242.576938][ T1] ? kasan_save_track (mm/kasan/common.c:48 mm/kasan/common.c:68) [ 242.576938][ T1] ? __kasan_kmalloc (mm/kasan/common.c:391) [ 242.576938][ T1] ? __kmalloc_noprof (include/linux/kasan.h:211 mm/slub.c:4186 mm/slub.c:4199) [ 242.576938][ T1] ? do_initcalls (init/main.c:1310) [ 242.576938][ T1] ? kernel_init_freeable (init/main.c:1552) [ 242.576938][ T1] ? kernel_init (init/main.c:1439) [ 242.576938][ T1] ? ret_from_fork (arch/x86/kernel/process.c:153) [ 242.576938][ T1] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:256) [ 242.576938][ T1] ? parameq (kernel/params.c:81) [ 242.576938][ T1] ? parameq (include/linux/fortify-string.h:250 kernel/params.c:99) [ 242.576938][ T1] ? __cfi_ignore_unknown_bootoption (init/main.c:1285) [ 242.576938][ T1] ? parse_args (kernel/params.c:?) [ 242.576938][ T1] ? __kasan_kmalloc (mm/kasan/common.c:391) [ 242.576938][ T1] do_initcall_level (init/main.c:1299) [ 242.576938][ T1] do_initcalls (init/main.c:1313) [ 242.576938][ T1] kernel_init_freeable (init/main.c:1552) [ 242.576938][ T1] ? __cfi_kernel_init (init/main.c:1429) [ 242.576938][ T1] kernel_init (init/main.c:1439) [ 242.576938][ T1] ? __cfi_kernel_init (init/main.c:1429) [ 242.576938][ T1] ret_from_fork (arch/x86/kernel/process.c:153) [ 242.576938][ T1] ? __cfi_kernel_init (init/main.c:1429) [ 242.576938][ T1] ret_from_fork_asm (arch/x86/entry/entry_64.S:256) [ 242.576938][ T1] [ 260.158718][ T1] XArray: 158742827 of 158742827 tests passed [ 260.160114][ T1] [ 260.160114][ T1] TEST STARTING [ 260.160114][ T1] BUG: kernel hang in boot stage The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20240406/202404061058.f2256e40-lkp@intel.com -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki