------------[ cut here ]------------ WARNING: CPU: 1 PID: 6475 at kernel/events/core.c:3752 ctx_sched_in+0x12e/0x3ee kernel/events/core.c:3752 Modules linked in: CPU: 1 PID: 6475 Comm: syz-executor.0 Not tainted 5.12.0-rc8-syzkaller-00011-g18a3c5f7abfd #0 Hardware name: riscv-virtio,qemu (DT) epc : ctx_sched_in+0x12e/0x3ee kernel/events/core.c:3752 ra : ctx_sched_in+0x12e/0x3ee kernel/events/core.c:3752 epc : ffffffe00027a674 ra : ffffffe00027a674 sp : ffffffe028cb7920 gp : ffffffe0045883c0 tp : ffffffe0075faf80 t0 : 0000000000000000 t1 : 0000000000000001 t2 : 00000000000f4240 s0 : ffffffe028cb7990 s1 : ffffffe00900c800 a0 : ffffffe066d76fa8 a1 : 00000000000f0000 a2 : 0000000000000002 a3 : ffffffe00027a674 a4 : ffffffe0075fbf80 a5 : 0000000040000000 a6 : 0000000000f00000 a7 : ffffffe000281354 s2 : 0000000000000007 s3 : ffffffe00900c940 s4 : ffffffe0075faf80 s5 : 0000000000000002 s6 : ffffffe00458c0d0 s7 : ffffffe066d76e00 s8 : 0000000000000007 s9 : ffffffe066d76fa8 s10: ffffffe00900c800 s11: ffffffe00900c808 t3 : f4f9b7064897b500 t4 : ffffffc4050cff34 t5 : ffffffc4050cff35 t6 : 0000000000040000 status: 0000000000000100 badaddr: 0000000000000000 cause: 0000000000000003 Call Trace: [] ctx_sched_in+0x12e/0x3ee kernel/events/core.c:3752 [] perf_event_sched_in+0x38/0x74 kernel/events/core.c:2680 [] perf_event_context_sched_in kernel/events/core.c:3817 [inline] [] __perf_event_task_sched_in+0x4ea/0x680 kernel/events/core.c:3860 [] perf_event_task_sched_in include/linux/perf_event.h:1210 [inline] [] finish_task_switch.isra.0+0x284/0x318 kernel/sched/core.c:4189 [] context_switch kernel/sched/core.c:4325 [inline] [] __schedule+0x484/0xe8c kernel/sched/core.c:5073 [] preempt_schedule_common+0x4e/0xde kernel/sched/core.c:5233 [] preempt_schedule+0x34/0x36 kernel/sched/core.c:5258 [] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:169 [inline] [] _raw_spin_unlock_irq+0x6c/0x76 kernel/locking/spinlock.c:199 [] spin_unlock_irq include/linux/spinlock.h:404 [inline] [] acct_collect+0x2fa/0x3b8 kernel/acct.c:570 [] do_exit+0xad4/0x1846 kernel/exit.c:804 [] do_group_exit+0xa0/0x198 kernel/exit.c:922 [] get_signal+0x31e/0x14ba kernel/signal.c:2781 [] do_signal arch/riscv/kernel/signal.c:271 [inline] [] do_notify_resume+0xa8/0x930 arch/riscv/kernel/signal.c:317 [] ret_from_exception+0x0/0x14 irq event stamp: 464 hardirqs last enabled at (463): [] restore_all+0x12/0x6e hardirqs last disabled at (464): [] __schedule+0x50c/0xe8c kernel/sched/core.c:4972 softirqs last enabled at (462): [] __do_softirq+0x5e0/0x8c4 kernel/softirq.c:372 softirqs last disabled at (453): [] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline] softirqs last disabled at (453): [] invoke_softirq kernel/softirq.c:228 [inline] softirqs last disabled at (453): [] __irq_exit_rcu kernel/softirq.c:422 [inline] softirqs last disabled at (453): [] irq_exit+0x1a0/0x1b6 kernel/softirq.c:446 ---[ end trace 5a66e7fa45b2837b ]---