[ 27.828514][ T447] ip (447) used greatest stack depth: 24496 bytes left [ 30.747315][ T475] ip (475) used greatest stack depth: 23832 bytes left [ 89.322258][ T1053] IPv6: Can't replace route, no match found [ 93.665223][ T1123] IPv6: Can't replace route, no match found [ 171.781089][ T2039] Mirror/redirect action on [ 288.133194][ T2666] veth2: entered promiscuous mode [ 288.182964][ T2666] veth2: left promiscuous mode [ 312.745457][ C2] [ 312.745772][ C2] ============================= [ 312.746047][ C2] WARNING: suspicious RCU usage [ 312.746314][ C2] 6.15.0-rc1-virtme #1 Not tainted [ 312.746611][ C2] ----------------------------- [ 312.746889][ C2] drivers/net/veth.c:907 suspicious rcu_dereference_check() usage! [ 312.747267][ C2] [ 312.747267][ C2] other info that might help us debug this: [ 312.747267][ C2] [ 312.747777][ C2] [ 312.747777][ C2] rcu_scheduler_active = 2, debug_locks = 1 [ 312.748158][ C2] no locks held by mausezahn/2793. [ 312.748441][ C2] [ 312.748441][ C2] stack backtrace: [ 312.748762][ C2] CPU: 2 UID: 0 PID: 2793 Comm: mausezahn Not tainted 6.15.0-rc1-virtme #1 PREEMPT(full) [ 312.748767][ C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 312.748769][ C2] Call Trace: [ 312.748772][ C2] [ 312.748774][ C2] dump_stack_lvl+0xb0/0xd0 [ 312.748787][ C2] lockdep_rcu_suspicious+0x166/0x270 [ 312.748799][ C2] veth_xdp_rcv+0x824/0xc10 [ 312.748809][ C2] ? switch_hrtimer_base+0x400/0x6e0 [ 312.748824][ C2] ? __pfx_veth_xdp_rcv+0x10/0x10 [ 312.748830][ C2] ? find_held_lock+0x2b/0x80 [ 312.748838][ C2] ? rcu_read_lock_any_held+0x43/0xb0 [ 312.748844][ C2] ? validate_chain+0x166/0x4d0 [ 312.748853][ C2] ? rcu_read_lock_any_held+0x43/0xb0 [ 312.748860][ C2] veth_poll+0x121/0x400 [ 312.748864][ C2] ? __pfx_veth_poll+0x10/0x10 [ 312.748867][ C2] ? __lock_acquire+0x591/0x9d0 [ 312.748878][ C2] ? find_held_lock+0x2b/0x80 [ 312.748882][ C2] ? debug_object_activate+0x387/0x490 [ 312.748894][ C2] ? __lock_release+0x5d/0x170 [ 312.748901][ C2] ? do_raw_spin_unlock+0x58/0x220 [ 312.748907][ C2] ? _raw_spin_unlock_irqrestore+0x46/0x80 [ 312.748931][ C2] ? debug_object_activate+0x387/0x490 [ 312.748942][ C2] __napi_poll.constprop.0+0xa2/0x460 [ 312.748948][ C2] ? rcu_is_watching+0x12/0xc0 [ 312.748958][ C2] net_rx_action+0x542/0xd00 [ 312.748971][ C2] ? __pfx_net_rx_action+0x10/0x10 [ 312.748974][ C2] ? rcu_start_this_gp+0x4fd/0xb50 [ 312.748981][ C2] ? trace_rcu_quiescent_state_report+0x152/0x2b0 [ 312.748986][ C2] ? find_held_lock+0x2b/0x80 [ 312.748991][ C2] ? __lock_release+0x5d/0x170 [ 312.748998][ C2] ? _raw_spin_unlock_irqrestore+0x5d/0x80 [ 312.749002][ C2] ? lockdep_hardirqs_on+0x7c/0x110 [ 312.749008][ C2] ? handle_softirqs+0x358/0x620 [ 312.749020][ C2] handle_softirqs+0x218/0x620 [ 312.749028][ C2] ? __dev_queue_xmit+0x982/0x18f0 [ 312.749033][ C2] do_softirq+0xb1/0xe0 [ 312.749036][ C2] [ 312.749037][ C2] [ 312.749039][ C2] __local_bh_enable_ip+0x105/0x130 [ 312.749043][ C2] ? __dev_queue_xmit+0x982/0x18f0 [ 312.749045][ C2] __dev_queue_xmit+0x997/0x18f0 [ 312.749048][ C2] ? _copy_from_iter+0x1d1/0x12e0 [ 312.749052][ C2] ? page_cache_async_ra+0x39f/0x740 [ 312.749066][ C2] ? __pfx___dev_queue_xmit+0x10/0x10 [ 312.749069][ C2] ? packet_parse_headers+0x241/0x9c0 [ 312.749080][ C2] ? __pfx_sock_alloc_send_pskb+0x10/0x10 [ 312.749089][ C2] ? __pfx_packet_parse_headers+0x10/0x10 [ 312.749093][ C2] ? skb_copy_datagram_from_iter+0xe6/0x6e0 [ 312.749108][ C2] packet_snd+0xd10/0x19d0 [ 312.749123][ C2] ? __pfx_packet_snd+0x10/0x10 [ 312.749128][ C2] ? find_held_lock+0x2b/0x80 [ 312.749137][ C2] ? __might_fault+0x11b/0x170 [ 312.749149][ C2] __sys_sendto+0x3c1/0x450 [ 312.749155][ C2] ? __pfx___sys_sendto+0x10/0x10 [ 312.749169][ C2] ? sock_ioctl+0x3b4/0x590 [ 312.749177][ C2] ? __pfx___up_read+0x10/0x10 [ 312.749181][ C2] ? do_user_addr_fault+0x38d/0xe00 [ 312.749194][ C2] ? do_user_addr_fault+0x38d/0xe00 [ 312.749201][ C2] __x64_sys_sendto+0xe0/0x1c0 [ 312.749205][ C2] ? do_syscall_64+0x85/0x1d0 [ 312.749209][ C2] ? lockdep_hardirqs_on+0x7c/0x110 [ 312.749214][ C2] do_syscall_64+0xc1/0x1d0 [ 312.749219][ C2] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 312.749223][ C2] RIP: 0033:0x7fe6cfd86a4a [ 312.749228][ C2] 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 [ 312.749230][ C2] RSP: 002b:00007ffe1c8a3778 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 312.749234][ C2] RAX: ffffffffffffffda RBX: 0000000034a619d0 RCX: 00007fe6cfd86a4a [ 312.749236][ C2] RDX: 000000000000002a RSI: 0000000034a61c92 RDI: 0000000000000006 [ 312.749238][ C2] RBP: 0000000034a61c92 R08: 00007ffe1c8a3780 R09: 0000000000000014 [ 312.749240][ C2] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 312.749242][ C2] R13: 000000000000002a R14: 00007ffe1c8a3780 R15: 0000000000000000 [ 312.749257][ C2]