rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: (detected by 0, t=10002 jiffies, g=2197, q=478 ncpus=2)
rcu: All QSes seen, last rcu_preempt kthread activity 10003 (4294951985-4294941982), jiffies_till_next_fqs=1, root ->qsmask 0x0
rcu: rcu_preempt kthread starved for 10004 jiffies! g2197 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt state:R running task stack:14736 pid:16 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5343 [inline]
__schedule+0x3aa/0xa30 kernel/sched/core.c:6669
schedule+0x59/0xb0 kernel/sched/core.c:6745
schedule_timeout+0xc2/0x150 kernel/time/timer.c:2167
rcu_gp_fqs_loop+0x13c/0x4a0 kernel/rcu/tree.c:1609
rcu_gp_kthread+0xc4/0x160 kernel/rcu/tree.c:1808
kthread+0xde/0x110 kernel/kthread.c:379
ret_from_fork+0x29/0x50 arch/x86/entry/entry_64.S:308
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 4042 Comm: syz-executor.2 Not tainted 6.4.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:check_preemption_disabled+0x2/0xe0 lib/smp_processor_id.c:13
Code: 90 90 90 90 90 90 90 90 66 0f 1f 00 e9 07 fe ff ff 0f 1f 80 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 41 54 <55> 53 48 83 ec 08 65 8b 1d cd 19 53 7d 65 8b 05 c2 19 53 7d a9 ff
RSP: 0018:ffffc900000d0e50 EFLAGS: 00000087
RAX: 0000000000000001 RBX: ffff888237d31028 RCX: 0000000029c5f01b
RDX: ffff888237d30ff8 RSI: ffffffff836de75f RDI: ffffffff836cc66f
RBP: ffff888237d31050 R08: 00000000000805a8 R09: ffff888114bf0a28
R10: 0000000000080000 R11: 0000000000000001 R12: 0000000000000001
R13: ffffffff82633424 R14: ffff888237d30e90 R15: ffffc900000d0f50
FS: 00007ff9025656c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff9019a8000 CR3: 000000016c8c4000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
rcu_dynticks_curr_cpu_in_eqs include/linux/context_tracking.h:122 [inline]
rcu_is_watching+0x11/0x50 kernel/rcu/tree.c:695
trace_lock_release include/trace/events/lock.h:69 [inline]
lock_release+0x1e2/0x230 kernel/locking/lockdep.c:5702
__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:157 [inline]
_raw_spin_unlock_irq+0x16/0x50 kernel/locking/spinlock.c:202
spin_unlock_irq include/linux/spinlock.h:400 [inline]
rps_unlock_irq_enable net/core/dev.c:247 [inline]
process_backlog+0x154/0x170 net/core/dev.c:5957
__napi_poll+0x23/0x1d0 net/core/dev.c:6496
napi_poll net/core/dev.c:6563 [inline]
net_rx_action+0x2ae/0x390 net/core/dev.c:6696
__do_softirq+0x13d/0x328 kernel/softirq.c:553
do_softirq kernel/softirq.c:454 [inline]
do_softirq+0x7a/0xa0 kernel/softirq.c:441
__local_bh_enable_ip+0x60/0x70 kernel/softirq.c:381
local_bh_enable include/linux/bottom_half.h:33 [inline]
bpf_test_run+0xf8/0x2d0 net/bpf/test_run.c:423
bpf_prog_test_run_skb+0x372/0x720 net/bpf/test_run.c:1229
bpf_prog_test_run kernel/bpf/syscall.c:3681 [inline]
__sys_bpf+0xa18/0x2490 kernel/bpf/syscall.c:5076
__do_sys_bpf kernel/bpf/syscall.c:5162 [inline]
__se_sys_bpf kernel/bpf/syscall.c:5160 [inline]
__x64_sys_bpf+0x19/0x30 kernel/bpf/syscall.c:5160
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3c/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x73/0xdd
RIP: 0033:0x7ff90187dca9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ff9025650c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007ff9019abf80 RCX: 00007ff90187dca9
RDX: 0000000000000050 RSI: 0000000020000080 RDI: 000000000000000a
RBP: 00007ff9018c947e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007ff9019abf80 R15: 00007ffc4317f158