[ 11.553572][ T272] ip (272) used greatest stack depth: 23464 bytes left [ 57.566571][ T872] IPv6: Can't replace route, no match found [ 60.526289][ T942] IPv6: Can't replace route, no match found [ 118.329978][ T1858] Mirror/redirect action on [ 217.849918][ T2485] veth2: entered promiscuous mode [ 217.877507][ T2485] [ 217.877691][ T2485] ============================= [ 217.877853][ T2485] WARNING: suspicious RCU usage [ 217.878025][ T2485] 6.14.0-rc6-virtme #1 Not tainted [ 217.878180][ T2485] ----------------------------- [ 217.878440][ T2485] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage! [ 217.878700][ T2485] [ 217.878700][ T2485] other info that might help us debug this: [ 217.878700][ T2485] [ 217.879005][ T2485] [ 217.879005][ T2485] rcu_scheduler_active = 2, debug_locks = 1 [ 217.879234][ T2485] 1 lock held by ra6/2485: [ 217.879392][ T2485] #0: ffffffffb216f640 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f5/0x18d0 [ 217.879691][ T2485] [ 217.879691][ T2485] stack backtrace: [ 217.879880][ T2485] CPU: 0 UID: 65534 PID: 2485 Comm: ra6 Not tainted 6.14.0-rc6-virtme #1 [ 217.879884][ T2485] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 217.879887][ T2485] Call Trace: [ 217.879888][ T2485] [ 217.879891][ T2485] dump_stack_lvl+0xb0/0xd0 [ 217.879899][ T2485] lockdep_rcu_suspicious+0x1ea/0x280 [ 217.879914][ T2485] dev_hard_start_xmit+0x2fc/0x3f0 [ 217.879925][ T2485] __dev_queue_xmit+0xfaa/0x18d0 [ 217.879929][ T2485] ? _copy_from_iter+0x1d2/0x12e0 [ 217.879949][ T2485] ? __pfx___dev_queue_xmit+0x10/0x10 [ 217.879954][ T2485] ? packet_parse_headers+0x243/0x9d0 [ 217.879964][ T2485] ? __pfx_sock_alloc_send_pskb+0x10/0x10 [ 217.879973][ T2485] ? __pfx_packet_parse_headers+0x10/0x10 [ 217.879978][ T2485] ? skb_copy_datagram_from_iter+0xe6/0x6e0 [ 217.879987][ T2485] ? packet_cached_dev_get+0xd5/0x210 [ 217.879997][ T2485] packet_snd+0xd0d/0x19c0 [ 217.880009][ T2485] ? hlock_class+0x4e/0x130 [ 217.880013][ T2485] ? mark_lock+0x38/0x3e0 [ 217.880018][ T2485] ? __pfx_packet_snd+0x10/0x10 [ 217.880025][ T2485] ? __lock_acquire+0xb9a/0x1680 [ 217.880041][ T2485] __sys_sendto+0x3c3/0x450 [ 217.880048][ T2485] ? __pfx___sys_sendto+0x10/0x10 [ 217.880061][ T2485] ? __lock_release+0x103/0x460 [ 217.880064][ T2485] ? do_user_addr_fault+0x972/0xe30 [ 217.880069][ T2485] ? __pfx___lock_release+0x10/0x10 [ 217.880073][ T2485] ? __up_read+0x1a7/0x780 [ 217.880079][ T2485] ? __pfx___up_read+0x10/0x10 [ 217.880086][ T2485] ? do_user_addr_fault+0x972/0xe30 [ 217.880093][ T2485] ? do_user_addr_fault+0x97c/0xe30 [ 217.880101][ T2485] __x64_sys_sendto+0xe0/0x1c0 [ 217.880105][ T2485] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 217.880110][ T2485] do_syscall_64+0xc1/0x1d0 [ 217.880117][ T2485] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 217.880121][ T2485] RIP: 0033:0x7f466489e8f0 [ 217.880125][ T2485] 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 [ 217.880128][ T2485] RSP: 002b:00007ffdff9ad958 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 217.880131][ T2485] RAX: ffffffffffffffda RBX: 0000000040444e50 RCX: 00007f466489e8f0 [ 217.880133][ T2485] RDX: 0000000000000046 RSI: 0000000000417940 RDI: 0000000000000006 [ 217.880135][ T2485] RBP: 00007ffdff9ad9b0 R08: 0000000000000000 R09: 0000000000000000 [ 217.880137][ T2485] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffdff9ae498 [ 217.880138][ T2485] R13: 0000000000402516 R14: 0000000000416de0 R15: 00007f4664ac3000 [ 217.880155][ T2485] [ 217.892828][ T2485] veth2: left promiscuous mode