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[ 333.104710][ C83] rcu: RCU grace-period kthread stack dump: [ 333.110761][ C83] task:rcu_sched state:I stack:0 pid:15 tgid:15 ppid:2 task_flags:0x208040 flags:0x00004000 [ 333.123135][ C83] Call Trace: [ 333.126603][ C83] [ 333.129713][ C83] __schedule (kernel/sched/core.c:5388 kernel/sched/core.c:6773) [ 333.134221][ C83] schedule (arch/x86/include/asm/bitops.h:206 arch/x86/include/asm/bitops.h:238 include/linux/thread_info.h:192 include/linux/thread_info.h:208 include/linux/sched.h:2176 kernel/sched/core.c:6853 kernel/sched/core.c:6866) [ 333.138380][ C83] schedule_timeout (include/linux/timer.h:185 kernel/time/sleep_timeout.c:100) [ 333.143309][ C83] ? __pfx_process_timeout (kernel/time/sleep_timeout.c:24) [ 333.148752][ C83] rcu_gp_fqs_loop (kernel/rcu/tree.c:2046 (discriminator 13)) [ 333.153666][ C83] ? __pfx_rcu_gp_kthread (kernel/rcu/tree.c:2223) [ 333.159014][ C83] rcu_gp_kthread (kernel/rcu/tree.c:2251) [ 333.163751][ C83] kthread (kernel/kthread.c:464) [ 333.167882][ C83] ? __pfx_kthread (kernel/kthread.c:413) [ 333.172620][ C83] ret_from_fork (arch/x86/kernel/process.c:153) [ 333.177173][ C83] ? __pfx_kthread (kernel/kthread.c:413) [ 333.181889][ C83] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) [ 333.186784][ C83] [ 333.189935][ C83] rcu: Stack dump where RCU GP kthread last ran: [ 333.196379][ C83] Sending NMI from CPU 83 to CPUs 45: j input_data: 0x0000005f7ef4d2cc input_len: 0x0000000000e59c10 output: 0x0000005f7c000000 output_len: 0x0000000003d48cac kernel_total_size: 0x0000000003430000 needed_size: 0x0000000003e00000 trampoline_32bit: 0x0000000000000000 KASLR disabled: 'nokaslr' on cmdline. The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20250424/202504241308.26441226-lkp@intel.com -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki