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X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM4PR11MB6528 X-OriginatorOrg: intel.com Hello, kernel test robot noticed "WARNING:at_lib/rcuref.c:#rcuref_put_slowpath" on: commit: 865221325b6a45c5d0777614ccad2e49aa82722b ("futex: Resize local futex hash table based on number of threads.") https://git.kernel.org/cgit/linux/kernel/git/bigeasy/staging.git futex_local_v6 in testcase: phoronix-test-suite version: with following parameters: test: build-erlang-1.2.0 cpufreq_governor: performance config: x86_64-rhel-9.4 compiler: gcc-12 test machine: 96 threads 2 sockets Intel(R) Xeon(R) Gold 6252 CPU @ 2.10GHz (Cascade Lake) with 512G 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 | Closes: https://lore.kernel.org/oe-lkp/202412311453.9d7636a2-lkp@intel.com The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20241231/202412311453.9d7636a2-lkp@intel.com [ 184.835701][T52159] ------------[ cut here ]------------ [ 184.841511][T52159] rcuref - imbalanced put() [ 184.841536][T52159] WARNING: CPU: 64 PID: 52159 at lib/rcuref.c:267 rcuref_put_slowpath+0x66/0x70 [ 184.855547][T52159] Modules linked in: xt_conntrack nft_chain_nat xt_MASQUERADE nf_nat nf_conntrack_netlink nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 xt_addrtype nft_compat nf_tables nfnetlink br_netfilter bridge stp llc dm_thin_pool dm_persistent_data dm_bio_prison dm_bufio qrtr sg binfmt_misc fuse loop dm_mod ip_tables overlay btrfs blake2b_generic xor raid6_pq libcrc32c intel_rapl_msr intel_rapl_common intel_uncore_frequency intel_uncore_frequency_common skx_edac skx_edac_common nfit libnvdimm x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm irdma ast sd_mod crct10dif_pclmul crc32_pclmul drm_client_lib crc32c_intel ice snd_pcm drm_shmem_helper ghash_clmulni_intel snd_timer ipmi_ssif gnss drm_kms_helper ahci rapl snd ib_uverbs libahci intel_cstate mei_me acpi_power_meter soundcore ioatdma i2c_i801 intel_uncore drm ib_core libata mei pcspkr ipmi_si acpi_ipmi lpc_ich joydev intel_pch_thermal i2c_smbus dca wmi ipmi_devintf ipmi_msghandler acpi_pad [ 184.944417][T52159] CPU: 64 UID: 0 PID: 52159 Comm: 1_aux Tainted: G S 6.13.0-rc3-00011-g865221325b6a #1 [ 184.955911][T52159] Tainted: [S]=CPU_OUT_OF_SPEC [ 184.961148][T52159] Hardware name: Intel Corporation S2600WFT/S2600WFT, BIOS SE5C620.86B.02.01.0008.031920191559 03/19/2019 [ 184.972898][T52159] RIP: 0010:rcuref_put_slowpath+0x66/0x70 [ 184.979101][T52159] Code: 31 c0 eb f0 80 3d 76 fb bd 01 00 74 0a c7 03 00 00 00 e0 31 c0 eb dd 48 c7 c7 02 4e b6 82 c6 05 5c fb bd 01 01 e8 da 49 96 ff <0f> 0b eb df 66 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 [ 184.999849][T52159] RSP: 0018:ffffc90025ef7ca0 EFLAGS: 00010282 [ 185.006454][T52159] RAX: 0000000000000000 RBX: ffff88c0a1e54000 RCX: 0000000000000027 [ 185.014975][T52159] RDX: ffff88bf7fe20c08 RSI: 0000000000000001 RDI: ffff88bf7fe20c00 [ 185.023484][T52159] RBP: ffffc90025ef7ce8 R08: 0000000000000000 R09: 0000000000000003 [ 185.031952][T52159] R10: ffffc90025ef7b40 R11: ffffffff831e10c8 R12: 0000000000000000 [ 185.040433][T52159] R13: ffff88c10e034080 R14: 00000000ffffffff R15: 00000000ffffffff [ 185.048952][T52159] FS: 00007f8fcb36a6c0(0000) GS:ffff88bf7fe00000(0000) knlGS:0000000000000000 [ 185.058426][T52159] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 185.065570][T52159] CR2: 00007f8fcd37f5d0 CR3: 00000041449c0003 CR4: 00000000007726f0 [ 185.074137][T52159] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 185.082692][T52159] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 185.091244][T52159] PKRU: 55555554 [ 185.095270][T52159] Call Trace: [ 185.099146][T52159] [ 185.102658][T52159] ? __warn+0x85/0x130 [ 185.107272][T52159] ? rcuref_put_slowpath+0x66/0x70 [ 185.112930][T52159] ? report_bug+0x150/0x170 [ 185.117954][T52159] ? prb_read_valid+0x1b/0x30 [ 185.122926][T52159] ? handle_bug+0x53/0xb0 [ 185.127813][T52159] ? exc_invalid_op+0x17/0x70 [ 185.133022][T52159] ? asm_exc_invalid_op+0x1a/0x20 [ 185.138520][T52159] ? rcuref_put_slowpath+0x66/0x70 [ 185.144224][T52159] futex_hash_put+0x2c/0x30 [ 185.149286][T52159] futex_wait_queue+0x4a/0xb0 [ 185.154497][T52159] __futex_wait+0x146/0x1b0 [ 185.159536][T52159] ? __pfx_futex_wake_mark+0x10/0x10 [ 185.165341][T52159] futex_wait+0x6c/0x130 [ 185.170135][T52159] ? __handle_mm_fault+0x2f6/0x6f0 [ 185.175497][T52159] do_futex+0x11d/0x1f0 [ 185.179885][T52159] __x64_sys_futex+0x77/0x1f0 [ 185.184795][T52159] do_syscall_64+0x7d/0x170 [ 185.189523][T52159] ? do_user_addr_fault+0x342/0x670 [ 185.194951][T52159] ? clear_bhb_loop+0x45/0xa0 [ 185.199852][T52159] ? clear_bhb_loop+0x45/0xa0 [ 185.204743][T52159] ? clear_bhb_loop+0x45/0xa0 [ 185.209631][T52159] entry_SYSCALL_64_after_hwframe+0x76/0x7e [ 185.215723][T52159] RIP: 0033:0x7f900e516719 [ 185.220324][T52159] Code: 08 89 e8 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d b7 06 0d 00 f7 d8 64 89 01 48 [ 185.240399][T52159] RSP: 002b:00007f8fcb369d28 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 185.248987][T52159] RAX: ffffffffffffffda RBX: 00007f8fcdc305d0 RCX: 00007f900e516719 [ 185.257134][T52159] RDX: 00000000ffffffff RSI: 0000000000000080 RDI: 00007f8fcdc305d0 [ 185.265258][T52159] RBP: 00007f8fcb369d90 R08: 0000000000000000 R09: 0000000000000000 [ 185.273369][T52159] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f8fcdc305c0 [ 185.281471][T52159] R13: 0000000000000000 R14: 0000000000000002 R15: 00007f8fcb369e30 [ 185.289572][T52159] [ 185.292733][T52159] ---[ end trace 0000000000000000 ]--- -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki