INFO: rcu_preempt detected stalls on CPUs/tasks: Tasks blocked on level-0 rcu_node (CPUs 0-1): P2156 (detected by 1, t=10502 jiffies, g=396, c=395, q=3681) syz-executor954 R running task 28232 2156 2154 0x00000000 ffff8801c9c3af80 ffff8801c9c4dd80 ffff8801c94d0580 ffff8801c9c017c0 ffff8801db621018 ffff8801c9b8fc78 ffffffff82806912 0000000000000046 0000000000000046 ffff8801c9c3af80 0100000000000000 ffff8801db6218f0 Call Trace: [] preempt_schedule_common+0x1f/0xd0 kernel/sched/core.c:3608 [] preempt_schedule+0x25/0x30 kernel/sched/core.c:3634 [] ___preempt_schedule+0x16/0x18 [] __sched_setscheduler+0x1c63/0x2ca0 kernel/sched/core.c:4407 [] sched_setattr kernel/sched/core.c:4449 [inline] [] SYSC_sched_setattr kernel/sched/core.c:4623 [inline] [] SyS_sched_setattr+0x24c/0x3c0 kernel/sched/core.c:4602 [] do_syscall_64+0x19f/0x550 arch/x86/entry/common.c:285 [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb syz-executor954 R running task 28232 2156 2154 0x00000000 ffff8801c9c3af80 ffff8801c9c4dd80 ffff8801c94d0580 ffff8801c9c017c0 ffff8801db621018 ffff8801c9b8fc78 ffffffff82806912 0000000000000046 0000000000000046 ffff8801c9c3af80 0100000000000000 ffff8801db6218f0 Call Trace: [] preempt_schedule_common+0x1f/0xd0 kernel/sched/core.c:3608 [] preempt_schedule+0x25/0x30 kernel/sched/core.c:3634 [] ___preempt_schedule+0x16/0x18 [] __sched_setscheduler+0x1c63/0x2ca0 kernel/sched/core.c:4407 [] sched_setattr kernel/sched/core.c:4449 [inline] [] SYSC_sched_setattr kernel/sched/core.c:4623 [inline] [] SyS_sched_setattr+0x24c/0x3c0 kernel/sched/core.c:4602 [] do_syscall_64+0x19f/0x550 arch/x86/entry/common.c:285 [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb