[ 197.236669][ T2250] [ 197.237029][ T2250] ============================= [ 197.237215][ T2250] WARNING: suspicious RCU usage [ 197.237392][ T2250] 6.14.0-rc6-virtme #1 Not tainted [ 197.237562][ T2250] ----------------------------- [ 197.237736][ T2250] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage! [ 197.238325][ T2250] [ 197.238325][ T2250] other info that might help us debug this: [ 197.238325][ T2250] [ 197.238640][ T2250] [ 197.238640][ T2250] rcu_scheduler_active = 2, debug_locks = 1 [ 197.238884][ T2250] 2 locks held by psock_tpacket/2250: [ 197.239072][ T2250] #0: ffff8880158f1858 (&po->pg_vec_lock){+.+.}-{4:4}, at: tpacket_snd+0x134/0x1ea0 [ 197.239390][ T2250] #1: ffffffff95f6f640 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f5/0x18d0 [ 197.239699][ T2250] [ 197.239699][ T2250] stack backtrace: [ 197.239924][ T2250] CPU: 2 UID: 0 PID: 2250 Comm: psock_tpacket Not tainted 6.14.0-rc6-virtme #1 [ 197.239929][ T2250] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 197.239933][ T2250] Call Trace: [ 197.239936][ T2250] [ 197.239939][ T2250] dump_stack_lvl+0xb0/0xd0 [ 197.239955][ T2250] lockdep_rcu_suspicious+0x1ea/0x280 [ 197.239976][ T2250] dev_hard_start_xmit+0x2fc/0x3f0 [ 197.239988][ T2250] __dev_queue_xmit+0xfaa/0x18d0 [ 197.239998][ T2250] ? __pfx_packet_parse_headers+0x10/0x10 [ 197.240003][ T2250] ? sock_alloc_send_pskb+0x678/0x7f0 [ 197.240011][ T2250] ? skb_store_bits+0x5a3/0x7e0 [ 197.240020][ T2250] ? __pfx___dev_queue_xmit+0x10/0x10 [ 197.240031][ T2250] ? tpacket_fill_skb+0x98b/0x13c0 [ 197.240052][ T2250] tpacket_snd+0xe77/0x1ea0 [ 197.240076][ T2250] ? __pfx_tpacket_snd+0x10/0x10 [ 197.240080][ T2250] ? __lock_acquire+0xb9a/0x1680 [ 197.240099][ T2250] __sys_sendto+0x3c3/0x450 [ 197.240108][ T2250] ? __pfx___sys_sendto+0x10/0x10 [ 197.240111][ T2250] ? __pfx___lock_release+0x10/0x10 [ 197.240125][ T2250] ? __pfx_timespec64_add_safe+0x10/0x10 [ 197.240134][ T2250] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 197.240138][ T2250] ? kvm_clock_get_cycles+0x18/0x30 [ 197.240150][ T2250] ? ktime_get_ts64+0xd6/0x2d0 [ 197.240167][ T2250] ? __x64_sys_poll+0x161/0x430 [ 197.240180][ T2250] ? __pfx___x64_sys_poll+0x10/0x10 [ 197.240189][ T2250] __x64_sys_sendto+0xe0/0x1c0 [ 197.240194][ T2250] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 197.240199][ T2250] do_syscall_64+0xc1/0x1d0 [ 197.240210][ T2250] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 197.240222][ T2250] RIP: 0033:0x7f9493c48a4a [ 197.240226][ T2250] 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 [ 197.240229][ T2250] RSP: 002b:00007fff105acc98 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 197.240234][ T2250] RAX: ffffffffffffffda RBX: 0000000000000800 RCX: 00007f9493c48a4a [ 197.240236][ T2250] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000005 [ 197.240238][ T2250] RBP: 0000008e0000008e R08: 0000000000000000 R09: 0000000000000000 [ 197.240240][ T2250] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 197.240241][ T2250] R13: 0000000000000064 R14: 0000000000000000 R15: 00007fff105ad130 [ 197.240259][ T2250]