[ 259.583904][ T3034] [ 259.584197][ T3034] ============================= [ 259.584366][ T3034] WARNING: suspicious RCU usage [ 259.584540][ T3034] 6.14.0-rc6-virtme #1 Not tainted [ 259.584696][ T3034] ----------------------------- [ 259.584867][ T3034] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage! [ 259.585136][ T3034] [ 259.585136][ T3034] other info that might help us debug this: [ 259.585136][ T3034] [ 259.585646][ T3034] [ 259.585646][ T3034] rcu_scheduler_active = 2, debug_locks = 1 [ 259.585882][ T3034] 2 locks held by psock_tpacket/3034: [ 259.586038][ T3034] #0: ffff888027829858 (&po->pg_vec_lock){+.+.}-{4:4}, at: tpacket_snd+0x134/0x1ea0 [ 259.586332][ T3034] #1: ffffffff9836f640 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f5/0x18d0 [ 259.586619][ T3034] [ 259.586619][ T3034] stack backtrace: [ 259.586809][ T3034] CPU: 0 UID: 0 PID: 3034 Comm: psock_tpacket Not tainted 6.14.0-rc6-virtme #1 [ 259.586816][ T3034] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 259.586818][ T3034] Call Trace: [ 259.586820][ T3034] [ 259.586822][ T3034] dump_stack_lvl+0xb0/0xd0 [ 259.586831][ T3034] lockdep_rcu_suspicious+0x1ea/0x280 [ 259.586842][ T3034] dev_hard_start_xmit+0x2fc/0x3f0 [ 259.586854][ T3034] __dev_queue_xmit+0xfaa/0x18d0 [ 259.586864][ T3034] ? __pfx_packet_parse_headers+0x10/0x10 [ 259.586869][ T3034] ? sock_alloc_send_pskb+0x678/0x7f0 [ 259.586873][ T3034] ? skb_store_bits+0x5a3/0x7e0 [ 259.586880][ T3034] ? __pfx___dev_queue_xmit+0x10/0x10 [ 259.586891][ T3034] ? tpacket_fill_skb+0x98b/0x13c0 [ 259.586913][ T3034] tpacket_snd+0xe77/0x1ea0 [ 259.586937][ T3034] ? __pfx_tpacket_snd+0x10/0x10 [ 259.586941][ T3034] ? __lock_acquire+0xb9a/0x1680 [ 259.586959][ T3034] __sys_sendto+0x3c3/0x450 [ 259.586966][ T3034] ? __pfx___sys_sendto+0x10/0x10 [ 259.586968][ T3034] ? __pfx___lock_release+0x10/0x10 [ 259.586982][ T3034] ? __pfx_timespec64_add_safe+0x10/0x10 [ 259.586988][ T3034] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 259.586993][ T3034] ? kvm_clock_get_cycles+0x18/0x30 [ 259.586997][ T3034] ? ktime_get_ts64+0xd6/0x2d0 [ 259.587011][ T3034] ? __x64_sys_poll+0x161/0x430 [ 259.587019][ T3034] ? __pfx___x64_sys_poll+0x10/0x10 [ 259.587028][ T3034] __x64_sys_sendto+0xe0/0x1c0 [ 259.587033][ T3034] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 259.587037][ T3034] do_syscall_64+0xc1/0x1d0 [ 259.587044][ T3034] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 259.587049][ T3034] RIP: 0033:0x7fe1cd15ca4a [ 259.587053][ T3034] 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 [ 259.587055][ T3034] RSP: 002b:00007ffe506cf188 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 259.587059][ T3034] RAX: ffffffffffffffda RBX: 0000000000000800 RCX: 00007fe1cd15ca4a [ 259.587061][ T3034] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000005 [ 259.587062][ T3034] RBP: 0000008e0000008e R08: 0000000000000000 R09: 0000000000000000 [ 259.587064][ T3034] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 259.587066][ T3034] R13: 0000000000000064 R14: 0000000000000000 R15: 00007ffe506cf620 [ 259.587084][ T3034]