[ 828.147529][T10682] IPv6: Can't replace route, no match found [ 831.248020][T10752] IPv6: Can't replace route, no match found [ 888.233201][T11712] tc (11712) used greatest stack depth: 22984 bytes left [ 986.559310][T12371] veth2: entered promiscuous mode [ 986.589857][T12371] [ 986.590153][T12371] ============================= [ 986.590313][T12371] WARNING: suspicious RCU usage [ 986.590840][T12371] 6.14.0-rc6-virtme #1 Not tainted [ 986.591037][T12371] ----------------------------- [ 986.591191][T12371] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage! [ 986.591459][T12371] [ 986.591459][T12371] other info that might help us debug this: [ 986.591459][T12371] [ 986.591762][T12371] [ 986.591762][T12371] rcu_scheduler_active = 2, debug_locks = 1 [ 986.592003][T12371] 1 lock held by ra6/12371: [ 986.592166][T12371] #0: ffffffffa296f640 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f5/0x18d0 [ 986.592494][T12371] [ 986.592494][T12371] stack backtrace: [ 986.592684][T12371] CPU: 3 UID: 65534 PID: 12371 Comm: ra6 Not tainted 6.14.0-rc6-virtme #1 [ 986.592688][T12371] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 986.592691][T12371] Call Trace: [ 986.592693][T12371] [ 986.592695][T12371] dump_stack_lvl+0xb0/0xd0 [ 986.592706][T12371] lockdep_rcu_suspicious+0x1ea/0x280 [ 986.592718][T12371] dev_hard_start_xmit+0x2fc/0x3f0 [ 986.592738][T12371] __dev_queue_xmit+0xfaa/0x18d0 [ 986.592745][T12371] ? _copy_from_iter+0x1d2/0x12e0 [ 986.592765][T12371] ? __pfx___dev_queue_xmit+0x10/0x10 [ 986.592770][T12371] ? packet_parse_headers+0x243/0x9d0 [ 986.592782][T12371] ? __pfx_sock_alloc_send_pskb+0x10/0x10 [ 986.592790][T12371] ? __pfx_packet_parse_headers+0x10/0x10 [ 986.592794][T12371] ? skb_copy_datagram_from_iter+0xe6/0x6e0 [ 986.592803][T12371] ? packet_cached_dev_get+0xd5/0x210 [ 986.592813][T12371] packet_snd+0xd0d/0x19c0 [ 986.592825][T12371] ? hlock_class+0x4e/0x130 [ 986.592830][T12371] ? mark_lock+0x38/0x3e0 [ 986.592835][T12371] ? __pfx_packet_snd+0x10/0x10 [ 986.592843][T12371] ? __lock_acquire+0xb9a/0x1680 [ 986.592859][T12371] __sys_sendto+0x3c3/0x450 [ 986.592866][T12371] ? __pfx___sys_sendto+0x10/0x10 [ 986.592880][T12371] ? __lock_release+0x103/0x460 [ 986.592882][T12371] ? do_user_addr_fault+0x972/0xe30 [ 986.592889][T12371] ? __pfx___lock_release+0x10/0x10 [ 986.592892][T12371] ? __up_read+0x1a7/0x780 [ 986.592898][T12371] ? __pfx___up_read+0x10/0x10 [ 986.592905][T12371] ? do_user_addr_fault+0x972/0xe30 [ 986.592913][T12371] ? do_user_addr_fault+0x97c/0xe30 [ 986.592920][T12371] __x64_sys_sendto+0xe0/0x1c0 [ 986.592925][T12371] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 986.592930][T12371] do_syscall_64+0xc1/0x1d0 [ 986.592939][T12371] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 986.592944][T12371] RIP: 0033:0x7f1a080b18f0 [ 986.592949][T12371] 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 [ 986.592952][T12371] RSP: 002b:00007ffc26744568 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 986.592956][T12371] RAX: ffffffffffffffda RBX: 000000002c6f7e50 RCX: 00007f1a080b18f0 [ 986.592958][T12371] RDX: 0000000000000046 RSI: 0000000000417940 RDI: 0000000000000006 [ 986.592960][T12371] RBP: 00007ffc267445c0 R08: 0000000000000000 R09: 0000000000000000 [ 986.592962][T12371] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc267450a8 [ 986.592964][T12371] R13: 0000000000402516 R14: 0000000000416de0 R15: 00007f1a082d6000 [ 986.592981][T12371] [ 986.606754][T12371] veth2: left promiscuous mode