[ 11.917706][ T263] ip (263) used greatest stack depth: 23872 bytes left [ 12.111599][ T264] [ 12.111915][ T264] ============================= [ 12.112113][ T264] WARNING: suspicious RCU usage [ 12.112284][ T264] 6.14.0-rc6-virtme #1 Not tainted [ 12.112472][ T264] ----------------------------- [ 12.112639][ T264] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage! [ 12.112920][ T264] [ 12.112920][ T264] other info that might help us debug this: [ 12.112920][ T264] [ 12.113252][ T264] [ 12.113252][ T264] rcu_scheduler_active = 2, debug_locks = 1 [ 12.113491][ T264] 2 locks held by psock_tpacket/264: [ 12.113661][ T264] #0: ffff888009f24858 (&po->pg_vec_lock){+.+.}-{4:4}, at: tpacket_snd+0x134/0x1ea0 [ 12.113978][ T264] #1: ffffffffaf56f640 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f5/0x18d0 [ 12.114275][ T264] [ 12.114275][ T264] stack backtrace: [ 12.114481][ T264] CPU: 2 UID: 0 PID: 264 Comm: psock_tpacket Not tainted 6.14.0-rc6-virtme #1 [ 12.114485][ T264] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 12.114487][ T264] Call Trace: [ 12.114489][ T264] [ 12.114491][ T264] dump_stack_lvl+0xb0/0xd0 [ 12.114499][ T264] lockdep_rcu_suspicious+0x1ea/0x280 [ 12.114510][ T264] dev_hard_start_xmit+0x2fc/0x3f0 [ 12.114522][ T264] __dev_queue_xmit+0xfaa/0x18d0 [ 12.114532][ T264] ? __pfx_packet_parse_headers+0x10/0x10 [ 12.114537][ T264] ? sock_alloc_send_pskb+0x678/0x7f0 [ 12.114542][ T264] ? skb_store_bits+0x5a3/0x7e0 [ 12.114548][ T264] ? __pfx___dev_queue_xmit+0x10/0x10 [ 12.114559][ T264] ? tpacket_fill_skb+0x98b/0x13c0 [ 12.114580][ T264] tpacket_snd+0xe77/0x1ea0 [ 12.114604][ T264] ? __pfx_tpacket_snd+0x10/0x10 [ 12.114609][ T264] ? __lock_acquire+0xb9a/0x1680 [ 12.114627][ T264] __sys_sendto+0x3c3/0x450 [ 12.114633][ T264] ? __pfx___sys_sendto+0x10/0x10 [ 12.114636][ T264] ? __pfx___lock_release+0x10/0x10 [ 12.114650][ T264] ? __pfx_timespec64_add_safe+0x10/0x10 [ 12.114656][ T264] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 12.114661][ T264] ? kvm_clock_get_cycles+0x18/0x30 [ 12.114665][ T264] ? ktime_get_ts64+0xd6/0x2d0 [ 12.114679][ T264] ? __x64_sys_poll+0x161/0x430 [ 12.114685][ T264] ? __pfx___x64_sys_poll+0x10/0x10 [ 12.114695][ T264] __x64_sys_sendto+0xe0/0x1c0 [ 12.114699][ T264] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 12.114704][ T264] do_syscall_64+0xc1/0x1d0 [ 12.114710][ T264] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 12.114715][ T264] RIP: 0033:0x7f3ff4c00a4a [ 12.114719][ T264] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb b8 0f 1f 00 f3 0f 1e fa 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 15 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 7e c3 0f 1f 44 00 00 41 54 48 83 ec 30 44 89 [ 12.114722][ T264] RSP: 002b:00007ffdc2560d18 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 12.114725][ T264] RAX: ffffffffffffffda RBX: 0000000000000800 RCX: 00007f3ff4c00a4a [ 12.114728][ T264] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000005 [ 12.114729][ T264] RBP: 0000008e0000008e R08: 0000000000000000 R09: 0000000000000000 [ 12.114731][ T264] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 12.114732][ T264] R13: 0000000000000064 R14: 0000000000000000 R15: 00007ffdc25611b0 [ 12.114750][ T264]