rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P3833/2:b..l
(detected by 1, t=10503 jiffies, g=11297, q=377 ncpus=2)
task:syz-executor state:R running task stack:21736 pid:3833 ppid:3829 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5245 [inline]
__schedule+0x142d/0x4550 kernel/sched/core.c:6558
preempt_schedule_irq+0xf7/0x1c0 kernel/sched/core.c:6870
irqentry_exit+0x53/0x80 kernel/entry/common.c:439
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0010:lock_acquire+0x26f/0x5a0 kernel/locking/lockdep.c:5666
Code: 2b 00 74 08 4c 89 f7 e8 4f ab 77 00 f6 44 24 61 02 0f 85 84 01 00 00 41 f7 c7 00 02 00 00 74 01 fb 48 c7 44 24 40 0e 36 e0 45 <4b> c7 44 25 00 00 00 00 00 43 c7 44 25 09 00 00 00 00 43 c7 44 25
RSP: 0018:ffffc9000350f0c0 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 1ffff920006a1e24 RCX: 1ffff920006a1dc4
RDX: dffffc0000000000 RSI: ffffffff8aec13c0 RDI: ffffffff8b3d4660
RBP: ffffc9000350f208 R08: dffffc0000000000 R09: fffffbfff2093a45
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff920006a1e20
R13: dffffc0000000000 R14: ffffc9000350f120 R15: 0000000000000246
rcu_lock_acquire include/linux/rcupdate.h:350 [inline]
rcu_read_lock include/linux/rcupdate.h:791 [inline]
xa_get_mark+0x196/0x680 lib/xarray.c:1945
devlinks_xa_find_get+0x122/0x2d0 net/devlink/leftover.c:308
devlinks_xa_find_get_first net/devlink/leftover.c:328 [inline]
devlink_nl_cmd_port_get_dumpit+0x130/0x560 net/devlink/leftover.c:1556
netlink_dump+0x603/0xc50 net/netlink/af_netlink.c:2231
__netlink_dump_start+0x541/0x6e0 net/netlink/af_netlink.c:2335
genl_family_rcv_msg_dumpit net/netlink/genetlink.c:714 [inline]
genl_family_rcv_msg net/netlink/genetlink.c:830 [inline]
genl_rcv_msg+0x9f3/0xf70 net/netlink/genetlink.c:850
netlink_rcv_skb+0x1cd/0x410 net/netlink/af_netlink.c:2508
genl_rcv+0x24/0x40 net/netlink/genetlink.c:861
netlink_unicast_kernel net/netlink/af_netlink.c:1326 [inline]
netlink_unicast+0x7d8/0x970 net/netlink/af_netlink.c:1352
netlink_sendmsg+0xa26/0xd60 net/netlink/af_netlink.c:1874
sock_sendmsg_nosec net/socket.c:718 [inline]
__sock_sendmsg net/socket.c:730 [inline]
__sys_sendto+0x480/0x600 net/socket.c:2148
__do_sys_sendto net/socket.c:2160 [inline]
__se_sys_sendto net/socket.c:2156 [inline]
__x64_sys_sendto+0xda/0xf0 net/socket.c:2156
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f19e097787c
RSP: 002b:00007fff2dbf3370 EFLAGS: 00000293 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007f19e1634620 RCX: 00007f19e097787c
RDX: 0000000000000034 RSI: 00007f19e1634670 RDI: 0000000000000005
RBP: 0000000000000000 R08: 00007fff2dbf33c4 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000005
R13: 00007fff2dbf3438 R14: 00007f19e1634670 R15: 0000000000000000
rcu: rcu_preempt kthread starved for 10451 jiffies! g11297 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
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:25528 pid:16 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5245 [inline]
__schedule+0x142d/0x4550 kernel/sched/core.c:6558
schedule+0xbf/0x180 kernel/sched/core.c:6634
schedule_timeout+0x1b9/0x300 kernel/time/timer.c:1965
rcu_gp_fqs_loop+0x2d2/0x1150 kernel/rcu/tree.c:1706
rcu_gp_kthread+0xa3/0x3b0 kernel/rcu/tree.c:1905
kthread+0x28d/0x320 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 3914 Comm: syz.2.78 Not tainted 6.1.94-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
RIP: 0010:csd_lock_wait kernel/smp.c:424 [inline]
RIP: 0010:smp_call_function_many_cond+0x1fb0/0x3460 kernel/smp.c:998
Code: 2f 44 89 ee 83 e6 01 31 ff e8 fc 42 0b 00 41 83 e5 01 49 bd 00 00 00 00 00 fc ff df 75 0a e8 87 3f 0b 00 e9 1b ff ff ff f3 90 <42> 0f b6 04 2b 84 c0 75 14 41 f7 07 01 00 00 00 0f 84 fe fe ff ff
RSP: 0018:ffffc900037af4c0 EFLAGS: 00000246
RAX: ffffffff817f53eb RBX: 1ffff110173281b1 RCX: 0000000000040000
RDX: ffffc900051b1000 RSI: 000000000003ffff RDI: 0000000000040000
RBP: ffffc900037af8a0 R08: ffffffff817f53b4 R09: fffffbfff2093a45
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000800000000
R13: dffffc0000000000 R14: 0000000000000001 R15: ffff8880b9940d88
FS: 00007fe276d3a6c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5475b6cb34 CR3: 000000007b50d000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
on_each_cpu_cond_mask+0x3b/0x80 kernel/smp.c:1166
on_each_cpu include/linux/smp.h:71 [inline]
text_poke_sync arch/x86/kernel/alternative.c:1334 [inline]
text_poke_bp_batch+0x5f9/0x940 arch/x86/kernel/alternative.c:1596
text_poke_flush arch/x86/kernel/alternative.c:1725 [inline]
text_poke_finish+0x16/0x30 arch/x86/kernel/alternative.c:1732
arch_jump_label_transform_apply+0x13/0x20 arch/x86/kernel/jump_label.c:146
static_key_enable_cpuslocked+0x12e/0x250 kernel/jump_label.c:177
static_key_enable+0x16/0x20 kernel/jump_label.c:190
tracepoint_add_func+0x947/0x9d0 kernel/tracepoint.c:361
tracepoint_probe_register_prio_may_exist+0x11e/0x190 kernel/tracepoint.c:482
bpf_raw_tp_link_attach+0x456/0x6b0 kernel/bpf/syscall.c:3372
bpf_raw_tracepoint_open+0x196/0x210 kernel/bpf/syscall.c:3399
__sys_bpf+0x4a7/0x6c0 kernel/bpf/syscall.c:5047
__do_sys_bpf kernel/bpf/syscall.c:5109 [inline]
__se_sys_bpf kernel/bpf/syscall.c:5107 [inline]
__x64_sys_bpf+0x78/0x90 kernel/bpf/syscall.c:5107
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fe275f75ae9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fe276d3a048 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007fe276103fa0 RCX: 00007fe275f75ae9
RDX: 0000000000000010 RSI: 0000000020000200 RDI: 0000000000000011
RBP: 00007fe275ff6746 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fe276103fa0 R15: 00007ffd75da17e8
sched: RT throttling activated