[ 6653.447253][ T4783] [ 6653.447571][ T4783] ============================= [ 6653.447749][ T4783] WARNING: suspicious RCU usage [ 6653.447908][ T4783] 6.12.0-rc5-virtme #1 Not tainted [ 6653.448572][ T4783] ----------------------------- [ 6653.448766][ T4783] kernel/events/core.c:13962 RCU-list traversed in non-reader section!! [ 6653.449015][ T4783] [ 6653.449015][ T4783] other info that might help us debug this: [ 6653.449015][ T4783] [ 6653.449330][ T4783] [ 6653.449330][ T4783] rcu_scheduler_active = 2, debug_locks = 1 [ 6653.449586][ T4783] 3 locks held by poweroff/4783: [ 6653.449752][ T4783] #0: ffffffffb182df68 (system_transition_mutex){+.+.}-{3:3}, at: __do_sys_reboot+0x26b/0x2d0 [ 6653.450145][ T4783] #1: ffffffffb182ac70 ((reboot_notifier_list).rwsem){++++}-{3:3}, at: blocking_notifier_call_chain+0x50/0x90 [ 6653.450613][ T4783] #2: ffffffffb1aadb08 (pmus_lock){+.+.}-{3:3}, at: perf_event_exit_cpu_context+0x24/0xf0 [ 6653.451489][ T4783] [ 6653.451489][ T4783] stack backtrace: [ 6653.451699][ T4783] CPU: 0 UID: 0 PID: 4783 Comm: poweroff Not tainted 6.12.0-rc5-virtme #1 [ 6653.451937][ T4783] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 6653.452320][ T4783] Call Trace: [ 6653.452447][ T4783] [ 6653.452538][ T4783] dump_stack_lvl+0xb0/0xd0 [ 6653.452725][ T4783] lockdep_rcu_suspicious+0x1ea/0x280 [ 6653.452894][ T4783] perf_event_clear_cpumask+0x61d/0x8f0 [ 6653.453069][ T4783] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 6653.453236][ T4783] ? __pfx_perf_event_clear_cpumask+0x10/0x10 [ 6653.453439][ T4783] ? acpi_execute_simple_method+0xaa/0xe0 [ 6653.453613][ T4783] ? __pfx_acpi_execute_simple_method+0x10/0x10 [ 6653.453833][ T4783] perf_event_exit_cpu_context+0x2c/0xf0 [ 6653.454013][ T4783] perf_reboot+0x7c/0xe0 [ 6653.454136][ T4783] ? trace_notifier_run+0xe2/0x140 [ 6653.454301][ T4783] notifier_call_chain+0xcd/0x150 [ 6653.454473][ T4783] blocking_notifier_call_chain+0x66/0x90 [ 6653.454638][ T4783] kernel_power_off+0x1c/0xb0 [ 6653.454822][ T4783] __do_sys_reboot+0x270/0x2d0 [ 6653.455043][ T4783] ? __pfx___do_sys_reboot+0x10/0x10 [ 6653.455270][ T4783] ? __lock_release+0x103/0x460 [ 6653.455488][ T4783] ? do_user_addr_fault+0x972/0xe30 [ 6653.455710][ T4783] ? __pfx___lock_release+0x10/0x10 [ 6653.455929][ T4783] ? __up_read+0x1a7/0x780 [ 6653.456153][ T4783] ? trace_lock_acquire+0x14d/0x1f0 [ 6653.456333][ T4783] ? __pfx___up_read+0x10/0x10 [ 6653.456511][ T4783] ? do_writev+0xf9/0x280 [ 6653.456637][ T4783] ? do_writev+0xf9/0x280 [ 6653.456781][ T4783] ? __pfx_do_writev+0x10/0x10 [ 6653.456944][ T4783] ? do_user_addr_fault+0x97c/0xe30 [ 6653.457116][ T4783] do_syscall_64+0xc1/0x1d0 [ 6653.457283][ T4783] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 6653.457488][ T4783] RIP: 0033:0x7f0829d14197 [ 6653.457666][ T4783] Code: 0b 00 f7 d8 64 89 02 b8 ff ff ff ff eb b8 0f 1f 44 00 00 f3 0f 1e fa 89 fa be 69 19 12 28 bf ad de e1 fe b8 a9 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 8b 15 39 3c 0b 00 f7 d8 64 89 02 b8 [ 6653.458233][ T4783] RSP: 002b:00007ffcf7cf8388 EFLAGS: 00000246 ORIG_RAX: 00000000000000a9 [ 6653.458482][ T4783] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f0829d14197 [ 6653.458729][ T4783] RDX: 000000004321fedc RSI: 0000000028121969 RDI: 00000000fee1dead [ 6653.458977][ T4783] RBP: 0000000000000000 R08: 00007ffcf7cf7640 R09: 00000000ffffffff [ 6653.459227][ T4783] R10: 000000000000001e R11: 0000000000000246 R12: 0000000000000002 [ 6653.459488][ T4783] R13: 0000000000000001 R14: 000055fc35f63803 R15: 00007f082a1aa000 [ 6653.459752][ T4783] [ 6653.461863][ T4783] ACPI: PM: Preparing to enter system sleep state S5 [ 6653.464164][ T4783] kvm: exiting hardware virtualization [ 6653.464568][ T4783] reboot: Power down