rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 0-....: (10499 ticks this GP) idle=ff2/1/0x4000000000000002 softirq=103049/103058 fqs=5018
(t=10500 jiffies g=201177 q=7861)
NMI backtrace for cpu 0
CPU: 0 PID: 11255 Comm: syz-executor.2 Not tainted 5.7.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x188/0x20d lib/dump_stack.c:118
nmi_cpu_backtrace.cold+0x70/0xb1 lib/nmi_backtrace.c:101
nmi_trigger_cpumask_backtrace+0x231/0x27e lib/nmi_backtrace.c:62
trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline]
rcu_dump_cpu_stacks+0x19b/0x1e5 kernel/rcu/tree_stall.h:254
print_cpu_stall kernel/rcu/tree_stall.h:475 [inline]
check_cpu_stall kernel/rcu/tree_stall.h:549 [inline]
rcu_pending kernel/rcu/tree.c:3225 [inline]
rcu_sched_clock_irq.cold+0x55d/0xcfa kernel/rcu/tree.c:2296
update_process_times+0x25/0x60 kernel/time/timer.c:1727
tick_sched_handle+0x9b/0x180 kernel/time/tick-sched.c:176
tick_sched_timer+0x4e/0x140 kernel/time/tick-sched.c:1320
__run_hrtimer kernel/time/hrtimer.c:1520 [inline]
__hrtimer_run_queues+0x5ca/0xed0 kernel/time/hrtimer.c:1584
hrtimer_interrupt+0x312/0x770 kernel/time/hrtimer.c:1646
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1113 [inline]
smp_apic_timer_interrupt+0x15b/0x600 arch/x86/kernel/apic/apic.c:1138
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:829
RIP: 0010:___might_sleep+0x155/0x2b0 kernel/sched/core.c:6768
Code: a1 73 31 08 48 8b 15 da 4c 6e 0a 48 83 e8 64 48 39 d0 0f 89 cc ad 01 00 48 85 d2 0f 84 c3 ad 01 00 5b 5d 41 5c 41 5d 41 5e c3 66 fe ff ff f6 c4 02 0f 84 29 ff ff ff 65 4c 8b 2c 25 00 1f 02
RSP: 0018:ffffc90018f9fa18 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 1ffff11012b80497 RSI: 1ffff11012b80540 RDI: ffff888095c024b8
RBP: ffffffff8837bc40 R08: 0000000000000001 R09: ffffed1012592e61
R10: ffff888092c97307 R11: ffffed1012592e60 R12: 0000000000001c9b
R13: 0000000000000000 R14: ffff888095c02140 R15: ffffffff81d52920
io_ring_ctx_wait_and_kill+0xa9/0x5f0 fs/io_uring.c:7323
io_uring_release+0x3e/0x50 fs/io_uring.c:7345
__fput+0x33e/0x880 fs/file_table.c:280
task_work_run+0xf4/0x1b0 kernel/task_work.c:123
exit_task_work include/linux/task_work.h:22 [inline]
do_exit+0xb34/0x2dd0 kernel/exit.c:796
do_group_exit+0x125/0x340 kernel/exit.c:894
get_signal+0x47b/0x24e0 kernel/signal.c:2739
do_signal+0x81/0x2240 arch/x86/kernel/signal.c:784
exit_to_usermode_loop+0x26c/0x360 arch/x86/entry/common.c:161
prepare_exit_to_usermode arch/x86/entry/common.c:196 [inline]
syscall_return_slowpath arch/x86/entry/common.c:279 [inline]
do_syscall_64+0x6b1/0x7d0 arch/x86/entry/common.c:305
entry_SYSCALL_64_after_hwframe+0x49/0xb3
RIP: 0033:0x45ca29
Code: Bad RIP value.
RSP: 002b:00007ff719aecc78 EFLAGS: 00000246 ORIG_RAX: 00000000000001a9
RAX: 0000000000000003 RBX: 00000000004e0f40 RCX: 000000000045ca29
RDX: 0000000000000000 RSI: 0000000020000580 RDI: 00000000000000f1
RBP: 000000000078c0e0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 0000000000000204 R14: 00000000004c445f R15: 00007ff719aed6d4