rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P8340
rcu: 	(detected by 1, t=10502 jiffies, g=5905, q=81)
syz-executor586 R  running task    27832  8340   8338 0x00000000
Call Trace:
 context_switch kernel/sched/core.c:2877 [inline]
 __schedule+0x817/0x1cc0 kernel/sched/core.c:3518
 preempt_schedule_common+0x4f/0xe0 kernel/sched/core.c:3642
 preempt_schedule+0x4b/0x60 kernel/sched/core.c:3668
 ___preempt_schedule+0x16/0x18
 __sched_setscheduler+0x12fb/0x1e70 kernel/sched/core.c:4398
 sched_setattr kernel/sched/core.c:4440 [inline]
 __do_sys_sched_setattr kernel/sched/core.c:4616 [inline]
 __se_sys_sched_setattr kernel/sched/core.c:4595 [inline]
 __x64_sys_sched_setattr+0x184/0x2b0 kernel/sched/core.c:4595
 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x4403c9
Code: 76 77 78 5d 20 5b 2d 6c 3c 68 6f 73 74 6c 69 73 74 3e 5d 20 5b 2d 73 3c 64 6f 6d 61 69 6e 6c 69 73 74 3e 5d 0a 20 20 20 20 20 <20> 20 20 20 20 20 20 20 20 20 20 5b 2d 66 3c 63 6f 6e 66 66 69 6c
RSP: 002b:00007ffea1a49298 EFLAGS: 00000246 ORIG_RAX: 000000000000013a
RAX: ffffffffffffffda RBX: 00007ffea1a49340 RCX: 00000000004403c9
RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000002b80 R09: 0000000000400d10
R10: 000000000000f8f8 R11: 0000000000000246 R12: 0000000000401c90
R13: 0000000000401d20 R14: 0000000000000000 R15: 0000000000000000
syz-executor586 R  running task    27832  8340   8338 0x00000000
Call Trace:
 context_switch kernel/sched/core.c:2877 [inline]
 __schedule+0x817/0x1cc0 kernel/sched/core.c:3518
 preempt_schedule_common+0x4f/0xe0 kernel/sched/core.c:3642
 preempt_schedule+0x4b/0x60 kernel/sched/core.c:3668
 ___preempt_schedule+0x16/0x18
 __sched_setscheduler+0x12fb/0x1e70 kernel/sched/core.c:4398
 sched_setattr kernel/sched/core.c:4440 [inline]
 __do_sys_sched_setattr kernel/sched/core.c:4616 [inline]
 __se_sys_sched_setattr kernel/sched/core.c:4595 [inline]
 __x64_sys_sched_setattr+0x184/0x2b0 kernel/sched/core.c:4595
 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x4403c9
Code: 76 77 78 5d 20 5b 2d 6c 3c 68 6f 73 74 6c 69 73 74 3e 5d 20 5b 2d 73 3c 64 6f 6d 61 69 6e 6c 69 73 74 3e 5d 0a 20 20 20 20 20 <20> 20 20 20 20 20 20 20 20 20 20 5b 2d 66 3c 63 6f 6e 66 66 69 6c
RSP: 002b:00007ffea1a49298 EFLAGS: 00000246 ORIG_RAX: 000000000000013a
RAX: ffffffffffffffda RBX: 00007ffea1a49340 RCX: 00000000004403c9
RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000002b80 R09: 0000000000400d10
R10: 000000000000f8f8 R11: 0000000000000246 R12: 0000000000401c90
R13: 0000000000401d20 R14: 0000000000000000 R15: 0000000000000000