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x39VXBSZehEq9eVF8PKDyWuQ+dbnjX+4ZI9GRvrp2eyT8tiSI3qaOs7OGf+ufKDLtx896 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 "BUG:Bad_rss-counter_state_mm:#type:MM_ANONPAGES_val:#Comm:kworker##Pid" on: commit: 25ae03e80acad812e536694c1a07a3f57784ae23 ("[RFC PATCH v7 2/2] mm: Fix OOM killer inaccuracy on large many-core systems") url: https://github.com/intel-lab-lkp/linux/commits/Mathieu-Desnoyers/lib-Introduce-hierarchical-per-cpu-counters/20251031-224455 base: https://git.kernel.org/cgit/linux/kernel/git/akpm/mm.git mm-everything patch link: https://lore.kernel.org/all/20251031144232.15284-3-mathieu.desnoyers@efficios.com/ patch subject: [RFC PATCH v7 2/2] mm: Fix OOM killer inaccuracy on large many-core systems in testcase: boot config: x86_64-randconfig-002-20251103 compiler: clang-20 test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 16G (please refer to attached dmesg/kmsg for entire log/backtrace) in fact, we observed various BUG:Bad_rss-counter_state_mm issues for this commit but clean on parent, as below +------------------------------------------------------------------------+------------+------------+ | | 05880dc4af | 25ae03e80a | +------------------------------------------------------------------------+------------+------------+ | BUG:Bad_rss-counter_state_mm:#type:MM_FILEPAGES_val:#Comm:kworker##Pid | 0 | 10 | | BUG:Bad_rss-counter_state_mm:#type:MM_ANONPAGES_val:#Comm:kworker##Pid | 0 | 17 | | BUG:Bad_rss-counter_state_mm:#type:MM_ANONPAGES_val:#Comm:swapper_Pid | 0 | 2 | | BUG:Bad_rss-counter_state_mm:#type:MM_ANONPAGES_val:#Comm:modprobe_Pid | 0 | 3 | | BUG:Bad_rss-counter_state_mm:#type:MM_FILEPAGES_val:#Comm:modprobe_Pid | 0 | 1 | +------------------------------------------------------------------------+------------+------------+ 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/202511061432.4e534796-lkp@intel.com [ 14.858862][ T67] BUG: Bad rss-counter state mm:ffff8881000655c0 type:MM_ANONPAGES val:0 Comm:kworker/u9:0 Pid:67 [ 14.894890][ T69] BUG: Bad rss-counter state mm:ffff888100061cc0 type:MM_FILEPAGES val:0 Comm:kworker/u9:0 Pid:69 [ 14.896108][ T69] BUG: Bad rss-counter state mm:ffff888100061cc0 type:MM_ANONPAGES val:0 Comm:kworker/u9:0 Pid:69 [ 14.918858][ T71] module: module-autoload: duplicate request for module crypto-aes [ 14.919479][ T71] module: module-autoload: duplicate request for module crypto-aes-all [ 14.920801][ T1] krb5: Running aes128-cts-hmac-sha256-128 enc plainblock [ 14.923843][ T1] krb5: Running aes256-cts-hmac-sha384-192 enc no plain [ 14.939591][ T1] krb5: Running aes256-cts-hmac-sha384-192 enc plainblock [ 14.942547][ T1] krb5: Running camellia128-cts-cmac enc no plain [ 15.018568][ T85] BUG: Bad rss-counter state mm:ffff888160f81340 type:MM_ANONPAGES val:0 Comm:kworker/u9:0 Pid:85 [ 15.054490][ T89] module: module-autoload: duplicate request for module crypto-camellia [ 15.055466][ T89] module: module-autoload: duplicate request for module crypto-camellia-all [ 15.056999][ T1] krb5: Running camellia128-cts-cmac enc 1 plain [ 15.057912][ T1] krb5: Running camellia128-cts-cmac enc 9 plain [ 15.058781][ T1] krb5: Running camellia128-cts-cmac enc 13 plain [ 15.059603][ T1] krb5: Running camellia128-cts-cmac enc 30 plain [ 15.061279][ T1] krb5: Running camellia256-cts-cmac enc no plain [ 15.062207][ T1] krb5: Running camellia256-cts-cmac enc 1 plain [ 15.063150][ T1] krb5: Running camellia256-cts-cmac enc 9 plain [ 15.072917][ T1] krb5: Running camellia256-cts-cmac enc 13 plain [ 15.073896][ T1] krb5: Running camellia256-cts-cmac enc 30 plain [ 15.074834][ T1] krb5: Running aes128-cts-hmac-sha256-128 mic [ 15.075625][ T1] krb5: Running aes256-cts-hmac-sha384-192 mic [ 15.076396][ T1] krb5: Running camellia128-cts-cmac mic abc [ 15.077225][ T1] krb5: Running camellia128-cts-cmac mic ABC [ 15.078052][ T1] krb5: Running camellia256-cts-cmac mic 123 [ 15.078853][ T1] krb5: Running camellia256-cts-cmac mic !@# [ 15.079621][ T1] krb5: Selftests succeeded [ 15.080683][ T1] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 248) [ 15.081610][ T1] io scheduler kyber registered [ 15.082527][ T1] test_mul_u64_u64_div_u64: Starting mul_u64_u64_div_u64() test [ 15.083365][ T1] test_mul_u64_u64_div_u64: ERROR: 0x000000000000000b * 0x0000000000000007 +/ 0x0000000000000003 [ 15.086382][ T1] test_mul_u64_u64_div_u64: ERROR: expected result: 000000000000001a [ 15.087178][ T1] test_mul_u64_u64_div_u64: ERROR: obtained result: 0000000000000019 [ 15.088064][ T1] test_mul_u64_u64_div_u64: ERROR: 0x00000000ffffffff * 0x00000000ffffffff +/ 0x0000000000000002 [ 15.089105][ T1] test_mul_u64_u64_div_u64: ERROR: expected result: 7fffffff00000001 [ 15.089924][ T1] test_mul_u64_u64_div_u64: ERROR: obtained result: 7fffffff00000000 [ 15.090696][ T1] test_mul_u64_u64_div_u64: ERROR: 0x00000001ffffffff * 0x00000000ffffffff +/ 0x0000000000000002 [ 15.091734][ T1] test_mul_u64_u64_div_u64: ERROR: expected result: fffffffe80000001 [ 15.092502][ T1] test_mul_u64_u64_div_u64: ERROR: obtained result: fffffffe80000000 [ 15.093281][ T1] test_mul_u64_u64_div_u64: ERROR: 0x00000001ffffffff * 0x00000001ffffffff +/ 0x0000000000000004 [ 15.094337][ T1] test_mul_u64_u64_div_u64: ERROR: expected result: ffffffff00000001 [ 15.095172][ T1] test_mul_u64_u64_div_u64: ERROR: obtained result: ffffffff00000000 [ 15.095953][ T1] test_mul_u64_u64_div_u64: ERROR: 0xffff000000000000 * 0xffff000000000000 +/ 0xffff000000000001 [ 15.097175][ T1] test_mul_u64_u64_div_u64: ERROR: expected result: ffff000000000000 [ 15.098020][ T1] test_mul_u64_u64_div_u64: ERROR: obtained result: fffeffffffffffff [ 15.098837][ T1] test_mul_u64_u64_div_u64: ERROR: 0x3333333333333333 * 0x3333333333333333 +/ 0x5555555555555555 [ 15.099924][ T1] test_mul_u64_u64_div_u64: ERROR: expected result: 1eb851eb851eb852 [ 15.100721][ T1] test_mul_u64_u64_div_u64: ERROR: obtained result: 1eb851eb851eb851 [ 15.101542][ T1] test_mul_u64_u64_div_u64: ERROR: 0x7fffffffffffffff * 0x0000000000000002 +/ 0x0000000000000003 [ 15.102565][ T1] test_mul_u64_u64_div_u64: ERROR: expected result: 5555555555555555 [ 15.103368][ T1] test_mul_u64_u64_div_u64: ERROR: obtained result: 5555555555555554 [ 15.107134][ T1] test_mul_u64_u64_div_u64: ERROR: 0xffffffffffffffff * 0x0000000000000002 +/ 0x8000000000000000 [ 15.108196][ T1] test_mul_u64_u64_div_u64: ERROR: expected result: 0000000000000004 [ 15.109049][ T1] test_mul_u64_u64_div_u64: ERROR: obtained result: 0000000000000003 [ 15.109887][ T1] test_mul_u64_u64_div_u64: ERROR: 0xffffffffffffffff * 0x0000000000000002 +/ 0xc000000000000000 [ 15.111017][ T1] test_mul_u64_u64_div_u64: ERROR: expected result: 0000000000000003 [ 15.111907][ T1] test_mul_u64_u64_div_u64: ERROR: obtained result: 0000000000000002 [ 15.112666][ T1] test_mul_u64_u64_div_u64: ERROR: 0xffffffffffffffff * 0x4000000000000004 +/ 0x8000000000000000 [ 15.113703][ T1] test_mul_u64_u64_div_u64: ERROR: expected result: 8000000000000008 [ 15.114527][ T1] test_mul_u64_u64_div_u64: ERROR: obtained result: 8000000000000007 [ 15.115424][ T1] test_mul_u64_u64_div_u64: ERROR: 0xffffffffffffffff * 0x4000000000000001 +/ 0x8000000000000000 [ 15.116279][ T1] test_mul_u64_u64_div_u64: ERROR: expected result: 8000000000000002 [ 15.116882][ T1] test_mul_u64_u64_div_u64: ERROR: obtained result: 8000000000000001 [ 15.117490][ T1] test_mul_u64_u64_div_u64: ERROR: 0xfffffffffffffffe * 0x8000000000000001 +/ 0xffffffffffffffff [ 15.118363][ T1] test_mul_u64_u64_div_u64: ERROR: expected result: 8000000000000001 [ 15.119240][ T1] test_mul_u64_u64_div_u64: ERROR: obtained result: 8000000000000000 [ 15.119914][ T1] test_mul_u64_u64_div_u64: ERROR: 0xffffffffffffffff * 0x8000000000000001 +/ 0xfffffffffffffffe [ 15.120785][ T1] test_mul_u64_u64_div_u64: ERROR: expected result: 8000000000000002 [ 15.121627][ T1] test_mul_u64_u64_div_u64: ERROR: obtained result: 8000000000000001 [ 15.122503][ T1] test_mul_u64_u64_div_u64: ERROR: 0xffffffffffffffff * 0x8000000000000001 +/ 0xfffffffffffffffd [ 15.123624][ T1] test_mul_u64_u64_div_u64: ERROR: expected result: 8000000000000003 [ 15.124521][ T1] test_mul_u64_u64_div_u64: ERROR: obtained result: 8000000000000002 [ 15.125399][ T1] test_mul_u64_u64_div_u64: ERROR: 0x7fffffffffffffff * 0xffffffffffffffff +/ 0xc000000000000000 [ 15.126592][ T1] test_mul_u64_u64_div_u64: ERROR: expected result: aaaaaaaaaaaaaaa9 [ 15.127438][ T1] test_mul_u64_u64_div_u64: ERROR: obtained result: aaaaaaaaaaaaaaa8 [ 15.128411][ T1] test_mul_u64_u64_div_u64: ERROR: 0xffffffffffffffff * 0x7fffffffffffffff +/ 0xa000000000000000 [ 15.129565][ T1] test_mul_u64_u64_div_u64: ERROR: expected result: cccccccccccccccb [ 15.130454][ T1] test_mul_u64_u64_div_u64: ERROR: obtained result: ccccccccccccccca [ 15.131239][ T1] test_mul_u64_u64_div_u64: ERROR: 0xffffffffffffffff * 0x7fffffffffffffff +/ 0x9000000000000000 [ 15.132213][ T1] test_mul_u64_u64_div_u64: ERROR: expected result: e38e38e38e38e38c [ 15.132793][ T1] test_mul_u64_u64_div_u64: ERROR: obtained result: e38e38e38e38e38b [ 15.133374][ T1] test_mul_u64_u64_div_u64: ERROR: 0x7fffffffffffffff * 0x7fffffffffffffff +/ 0x5000000000000000 [ 15.134101][ T1] test_mul_u64_u64_div_u64: ERROR: expected result: ccccccccccccccca [ 15.134674][ T1] test_mul_u64_u64_div_u64: ERROR: obtained result: ccccccccccccccc9 [ 15.135235][ T1] test_mul_u64_u64_div_u64: ERROR: 0xe6102d256d7ea3ae * 0x70a77d0be4c31201 +/ 0xd63ec35ab3220357 [ 15.135984][ T1] test_mul_u64_u64_div_u64: ERROR: expected result: 78f8bf8cc86c6e19 [ 15.136587][ T1] test_mul_u64_u64_div_u64: ERROR: obtained result: 78f8bf8cc86c6e18 [ 15.137140][ T1] test_mul_u64_u64_div_u64: ERROR: 0xf53bae05cb86c6e1 * 0x3847b32d2f8d32e0 +/ 0xcfd4f55a647f403c [ 15.137964][ T1] test_mul_u64_u64_div_u64: ERROR: expected result: 42687f79d8998d36 [ 15.138541][ T1] test_mul_u64_u64_div_u64: ERROR: obtained result: 42687f79d8998d35 [ 15.139135][ T1] test_mul_u64_u64_div_u64: ERROR: 0x9951c5498f941092 * 0x1f8c8bfdf287a251 +/ 0xa3c8dc5f81ea3fe2 [ 15.139884][ T1] test_mul_u64_u64_div_u64: ERROR: expected result: 1d887cb259000920 [ 15.140444][ T1] test_mul_u64_u64_div_u64: ERROR: obtained result: 1d887cb25900091f [ 15.141025][ T1] test_mul_u64_u64_div_u64: ERROR: 0x374fee9daa1bb2bb * 0x0d0bfbff7b8ae3ef +/ 0xc169337bd42d5179 [ 15.141759][ T1] test_mul_u64_u64_div_u64: ERROR: expected result: 03bb2dbaffcbb962 [ 15.142324][ T1] test_mul_u64_u64_div_u64: ERROR: obtained result: 03bb2dbaffcbb961 [ 15.142890][ T1] test_mul_u64_u64_div_u64: ERROR: 0xeac0d03ac10eeaf0 * 0x89be05dfa162ed9b +/ 0x92bb1679a41f0e4b [ 15.143618][ T1] test_mul_u64_u64_div_u64: ERROR: expected result: dc5f5cc9e270d217 [ 15.144200][ T1] test_mul_u64_u64_div_u64: ERROR: obtained result: dc5f5cc9e270d216 [ 15.144767][ T1] test_mul_u64_u64_div_u64: Completed mul_u64_u64_div_u64() test, 56 tests, 23 errors, 61402015 ns [ 15.147067][ T1] gpio_virtuser: Failed to create the debugfs tree: -2 [ 15.148313][ T1] gpio_winbond: chip ID at 2e is ffff [ 15.148884][ T1] gpio_winbond: not an our chip [ 15.149345][ T1] gpio_winbond: chip ID at 4e is ffff [ 15.149721][ T1] gpio_winbond: not an our chip [ 15.151343][ T1] IPMI message handler: version 39.2 [ 15.151885][ T1] ipmi device interface [ 15.152644][ T1] ipmi_si: IPMI System Interface driver [ 15.153494][ T1] ipmi_si: Unable to find any System Interface(s) The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20251106/202511061432.4e534796-lkp@intel.com -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki