[ 14.291607][ T262] ip (262) used greatest stack depth: 24272 bytes left
[ 27.484690][ C0]
[ 27.485014][ C0] =============================
[ 27.485284][ C0] WARNING: suspicious RCU usage
[ 27.485550][ C0] 6.15.0-rc1-virtme #1 Not tainted
[ 27.485861][ C0] -----------------------------
[ 27.486128][ C0] drivers/net/veth.c:907 suspicious rcu_dereference_check() usage!
[ 27.486518][ C0]
[ 27.486518][ C0] other info that might help us debug this:
[ 27.486518][ C0]
[ 27.487046][ C0]
[ 27.487046][ C0] rcu_scheduler_active = 2, debug_locks = 1
[ 27.487430][ C0] 1 lock held by netserver/350:
[ 27.487714][ C0] #0: ffff88800e1a9058 (sk_lock-AF_INET6){+.+.}-{0:0}, at: tcp_sendmsg+0x1e/0x50
[ 27.488183][ C0]
[ 27.488183][ C0] stack backtrace:
[ 27.488506][ C0] CPU: 0 UID: 0 PID: 350 Comm: netserver Not tainted 6.15.0-rc1-virtme #1 PREEMPT(full)
[ 27.488510][ C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 27.488513][ C0] Call Trace:
[ 27.488515][ C0]
[ 27.488517][ C0] dump_stack_lvl+0xb0/0xd0
[ 27.488527][ C0] lockdep_rcu_suspicious+0x166/0x270
[ 27.488539][ C0] veth_xdp_rcv+0x824/0xc10
[ 27.488548][ C0] ? ip_local_deliver_finish+0x2c6/0x490
[ 27.488557][ C0] ? ip_local_deliver_finish+0x2d0/0x490
[ 27.488564][ C0] ? ip_local_deliver+0x193/0x470
[ 27.488569][ C0] ? __pfx_veth_xdp_rcv+0x10/0x10
[ 27.488578][ C0] ? ip_rcv_finish_core+0x51e/0x1320
[ 27.488593][ C0] veth_poll+0x121/0x400
[ 27.488597][ C0] ? __pfx_veth_poll+0x10/0x10
[ 27.488610][ C0] ? find_held_lock+0x2b/0x80
[ 27.488616][ C0] ? rcu_is_watching+0x12/0xc0
[ 27.488626][ C0] ? trace_pelt_se_tp+0xf1/0x160
[ 27.488631][ C0] ? __update_load_avg_se+0x3fd/0x940
[ 27.488648][ C0] __napi_poll.constprop.0+0xa2/0x460
[ 27.488659][ C0] net_rx_action+0x542/0xd00
[ 27.488671][ C0] ? __pfx_net_rx_action+0x10/0x10
[ 27.488673][ C0] ? try_to_wake_up+0x787/0xde0
[ 27.488678][ C0] ? lock_downgrade+0x80/0xc0
[ 27.488686][ C0] ? do_raw_spin_unlock+0x58/0x220
[ 27.488692][ C0] ? try_to_wake_up+0x157/0xde0
[ 27.488698][ C0] ? __pfx_try_to_wake_up+0x10/0x10
[ 27.488702][ C0] ? mark_held_locks+0x49/0x80
[ 27.488712][ C0] handle_softirqs+0x218/0x620
[ 27.488723][ C0] ? __release_sock+0xc8/0x390
[ 27.488729][ C0] do_softirq+0xb1/0xe0
[ 27.488733][ C0]
[ 27.488734][ C0]
[ 27.488736][ C0] __local_bh_enable_ip+0x105/0x130
[ 27.488740][ C0] __release_sock+0xc8/0x390
[ 27.488749][ C0] release_sock+0x53/0x1d0
[ 27.488754][ C0] tcp_sendmsg+0x37/0x50
[ 27.488758][ C0] __sys_sendto+0x25b/0x450
[ 27.488777][ C0] ? __pfx___sys_sendto+0x10/0x10
[ 27.488789][ C0] ? __sys_getsockname+0x14f/0x1f0
[ 27.488794][ C0] ? __pfx___sys_getsockname+0x10/0x10
[ 27.488800][ C0] ? inet_listen+0x85/0xb0
[ 27.488805][ C0] ? __lock_release+0x5d/0x170
[ 27.488808][ C0] ? inet_listen+0x85/0xb0
[ 27.488811][ C0] ? rcu_is_watching+0x12/0xc0
[ 27.488814][ C0] ? __local_bh_enable_ip+0xa9/0x130
[ 27.488818][ C0] ? lockdep_hardirqs_on+0x7c/0x110
[ 27.488822][ C0] ? inet_listen+0x85/0xb0
[ 27.488824][ C0] ? __local_bh_enable_ip+0xa9/0x130
[ 27.488832][ C0] __x64_sys_sendto+0xe0/0x1c0
[ 27.488836][ C0] ? do_syscall_64+0x85/0x1d0
[ 27.488841][ C0] ? lockdep_hardirqs_on+0x7c/0x110
[ 27.488845][ C0] do_syscall_64+0xc1/0x1d0
[ 27.488849][ C0] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 27.488853][ C0] RIP: 0033:0x7f21f47328f0
[ 27.488857][ C0] Code: ff ff 64 89 02 eb bd 0f 1f 00 f3 0f 1e fa 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 1d 45 31 c9 45 31 c0 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 68 c3 0f 1f 80 00 00 00 00 41 54 48 83 ec 20
[ 27.488860][ C0] RSP: 002b:00007ffee3a40ae8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[ 27.488863][ C0] RAX: ffffffffffffffda RBX: 0000000000020000 RCX: 00007f21f47328f0
[ 27.488865][ C0] RDX: 0000000000000290 RSI: 000000000042b960 RDI: 0000000000000008
[ 27.488867][ C0] RBP: 00007ffee3a40b10 R08: 0000000000000000 R09: 0000000000000000
[ 27.488869][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffee3a43108
[ 27.488870][ C0] R13: 00000000004040b5 R14: 0000000000425df0 R15: 00007f21f490b000
[ 27.488884][ C0]
[ 45.407273][ T439] netperf (439) used greatest stack depth: 24176 bytes left