[ 17.687685][ T300] veth1: entered promiscuous mode [ 17.877935][ T304] veth1: left promiscuous mode [ 17.933019][ T304] ip (304) used greatest stack depth: 24264 bytes left [ 19.684251][ T327] veth1: entered promiscuous mode [ 42.277275][ T409] veth1: entered allmulticast mode [ 48.302504][ T424] veth1: left allmulticast mode [ 49.175711][ T439] [ 49.176061][ T439] ============================= [ 49.176276][ T439] WARNING: suspicious RCU usage [ 49.176433][ T439] 6.14.0-rc6-virtme #1 Not tainted [ 49.176606][ T439] ----------------------------- [ 49.176770][ T439] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage! [ 49.177129][ T439] [ 49.177129][ T439] other info that might help us debug this: [ 49.177129][ T439] [ 49.177440][ T439] [ 49.177440][ T439] rcu_scheduler_active = 2, debug_locks = 1 [ 49.177666][ T439] 1 lock held by mausezahn/439: [ 49.177854][ T439] #0: ffffffffb995b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f0/0x18d0 [ 49.178146][ T439] [ 49.178146][ T439] stack backtrace: [ 49.178407][ T439] CPU: 1 UID: 0 PID: 439 Comm: mausezahn Not tainted 6.14.0-rc6-virtme #1 [ 49.178414][ T439] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 49.178417][ T439] Call Trace: [ 49.178419][ T439] [ 49.178421][ T439] dump_stack_lvl+0xb0/0xd0 [ 49.178429][ T439] lockdep_rcu_suspicious+0x1ea/0x280 [ 49.178440][ T439] dev_hard_start_xmit+0x2fc/0x3f0 [ 49.178451][ T439] __dev_queue_xmit+0xfaf/0x18d0 [ 49.178465][ T439] ? __pfx___dev_queue_xmit+0x10/0x10 [ 49.178470][ T439] ? packet_parse_headers+0x231/0x9c0 [ 49.178479][ T439] ? __pfx_sock_alloc_send_pskb+0x10/0x10 [ 49.178485][ T439] ? __pfx_packet_parse_headers+0x10/0x10 [ 49.178489][ T439] ? skb_copy_datagram_from_iter+0xe6/0x6f0 [ 49.178495][ T439] ? dev_get_by_index+0xb2/0x190 [ 49.178506][ T439] packet_snd+0xd0c/0x19d0 [ 49.178517][ T439] ? __lock_release+0x103/0x460 [ 49.178521][ T439] ? __might_fault+0x11b/0x170 [ 49.178528][ T439] ? __pfx_packet_snd+0x10/0x10 [ 49.178530][ T439] ? trace_lock_acquire+0x14c/0x1f0 [ 49.178533][ T439] ? __might_fault+0x11b/0x170 [ 49.178540][ T439] ? lock_acquire+0x32/0xc0 [ 49.178546][ T439] ? __might_fault+0x11b/0x170 [ 49.178557][ T439] __sys_sendto+0x3c3/0x450 [ 49.178562][ T439] ? __pfx___sys_sendto+0x10/0x10 [ 49.178577][ T439] ? sock_ioctl+0x3b6/0x590 [ 49.178581][ T439] ? _copy_to_user+0x5c/0x80 [ 49.178589][ T439] ? __pfx_put_timespec64+0x10/0x10 [ 49.178597][ T439] ? posix_cpu_clock_get+0xe1/0x240 [ 49.178605][ T439] ? __x64_sys_clock_gettime+0x17a/0x200 [ 49.178610][ T439] ? __pfx___x64_sys_clock_gettime+0x10/0x10 [ 49.178617][ T439] __x64_sys_sendto+0xe0/0x1c0 [ 49.178621][ T439] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 49.178627][ T439] do_syscall_64+0xc1/0x1d0 [ 49.178634][ T439] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 49.178640][ T439] RIP: 0033:0x7f7409e61a4a [ 49.178645][ T439] 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 [ 49.178647][ T439] RSP: 002b:00007ffd2ec75d58 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 49.178651][ T439] RAX: ffffffffffffffda RBX: 0000000030ce99d0 RCX: 00007f7409e61a4a [ 49.178654][ T439] RDX: 000000000000003a RSI: 0000000030ce9c02 RDI: 0000000000000005 [ 49.178655][ T439] RBP: 0000000030ce9c02 R08: 00007ffd2ec75d60 R09: 0000000000000014 [ 49.178657][ T439] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 49.178659][ T439] R13: 000000000000003a R14: 00007ffd2ec75d60 R15: 0000000000000000 [ 49.178675][ T439] [ 62.788840][ T588] veth1: left promiscuous mode [ 63.102448][ T593] ip (593) used greatest stack depth: 23664 bytes left [ 65.850654][ T627] br0: port 1(veth1) entered blocking state [ 65.850967][ T627] br0: port 1(veth1) entered disabled state [ 65.851302][ T627] veth1: entered allmulticast mode [ 65.854013][ T627] veth1: entered promiscuous mode [ 65.950574][ T153] br0: port 1(veth1) entered blocking state [ 65.951317][ T153] br0: port 1(veth1) entered forwarding state [ 66.440595][ T634] br0: port 1(veth1) entered disabled state [ 66.444774][ T634] br0: port 1(veth1) entered blocking state [ 66.445416][ T634] br0: port 1(veth1) entered forwarding state [ 67.029096][ T641] br0: entered promiscuous mode [ 89.900682][ T724] br0: entered allmulticast mode [ 95.886818][ T739] br0: left allmulticast mode [ 101.253523][ T807] br0: left promiscuous mode [ 101.498283][ T812] br0: port 1(veth1) entered disabled state [ 101.981545][ T817] veth1: left allmulticast mode [ 101.981923][ T817] veth1: left promiscuous mode [ 101.982469][ T817] br0: port 1(veth1) entered disabled state [ 103.844438][ T846] br0: port 1(veth1) entered blocking state [ 103.844723][ T846] br0: port 1(veth1) entered disabled state [ 103.844992][ T846] veth1: entered allmulticast mode [ 103.846924][ T846] veth1: entered promiscuous mode [ 103.848436][ T846] br0: port 1(veth1) entered blocking state [ 103.848719][ T846] br0: port 1(veth1) entered forwarding state [ 104.379183][ T853] br0: port 1(veth1) entered disabled state [ 104.381033][ T853] br0: port 1(veth1) entered blocking state [ 104.381396][ T853] br0: port 1(veth1) entered forwarding state [ 104.889489][ T860] br0: entered promiscuous mode [ 127.662957][ T942] br0: entered allmulticast mode [ 133.641354][ T957] br0: left allmulticast mode [ 139.107621][ T1025] br0: left promiscuous mode [ 139.381252][ T1030] br0: port 1(veth1) entered disabled state [ 139.842536][ T1035] veth1: left allmulticast mode [ 139.842832][ T1035] veth1: left promiscuous mode [ 139.843184][ T1035] br0: port 1(veth1) entered disabled state [ 141.107392][ T1061] veth1: entered promiscuous mode [ 141.326659][ T1065] veth1: left promiscuous mode [ 142.088818][ T1074] 8021q: 802.1Q VLAN Support v1.8 [ 143.711440][ T1097] veth1: entered promiscuous mode [ 156.959572][ T1137] veth1.100: entered promiscuous mode [ 162.952223][ T1152] veth1.100: left promiscuous mode [ 166.308717][ T1179] veth1.100: entered allmulticast mode [ 166.308946][ T1179] veth1: entered allmulticast mode [ 172.310046][ T1194] veth1.100: left allmulticast mode [ 172.310304][ T1194] veth1: left allmulticast mode [ 186.584890][ T1358] veth1: left promiscuous mode [ 186.623476][ T1358] ip (1358) used greatest stack depth: 23656 bytes left [ 188.414486][ T1391] veth1: entered promiscuous mode [ 188.600481][ T1395] veth1: left promiscuous mode [ 190.954842][ T1426] br0: port 1(veth1) entered blocking state [ 190.955284][ T1426] br0: port 1(veth1) entered disabled state [ 190.955654][ T1426] veth1: entered allmulticast mode [ 190.959735][ T1426] veth1: entered promiscuous mode [ 190.968945][ T1426] br0: port 1(veth1) entered blocking state [ 190.969257][ T1426] br0: port 1(veth1) entered forwarding state [ 190.977226][ T1426] ip (1426) used greatest stack depth: 23584 bytes left [ 204.705889][ T1471] veth1.100: entered promiscuous mode [ 210.712543][ T1486] veth1.100: left promiscuous mode [ 214.130806][ T1513] veth1.100: entered allmulticast mode [ 220.121229][ T1528] veth1.100: left allmulticast mode [ 234.832765][ T1693] veth1: left allmulticast mode [ 234.833094][ T1693] veth1: left promiscuous mode [ 234.833469][ T1693] br0: port 1(veth1) entered disabled state [ 236.628609][ T1726] veth1: entered promiscuous mode [ 236.832043][ T1730] veth1: left promiscuous mode [ 239.178671][ T1761] br0: port 1(veth1) entered blocking state [ 239.179012][ T1761] br0: port 1(veth1) entered disabled state [ 239.180672][ T1761] veth1: entered allmulticast mode [ 239.182832][ T1761] veth1: entered promiscuous mode [ 239.184071][ T1761] br0: port 1(veth1) entered blocking state [ 239.184486][ T1761] br0: port 1(veth1) entered forwarding state [ 252.986567][ T1806] veth1.100: entered promiscuous mode [ 258.998776][ T1821] veth1.100: left promiscuous mode [ 262.347879][ T1848] veth1.100: entered allmulticast mode [ 268.342164][ T1863] veth1.100: left allmulticast mode [ 283.135059][ T2028] veth1: left allmulticast mode [ 283.135343][ T2028] veth1: left promiscuous mode [ 283.135671][ T2028] br0: port 1(veth1) entered disabled state [ 285.739297][ T2068] br0: port 1(veth1) entered blocking state [ 285.739579][ T2068] br0: port 1(veth1) entered disabled state [ 285.739844][ T2068] veth1: entered allmulticast mode [ 285.741771][ T2068] veth1: entered promiscuous mode [ 285.827316][ T41] br0: port 1(veth1) entered blocking state [ 285.827658][ T41] br0: port 1(veth1) entered forwarding state [ 286.333882][ T2075] br0: port 1(veth1) entered disabled state [ 286.335805][ T2075] br0: port 1(veth1) entered blocking state [ 286.336071][ T2075] br0: port 1(veth1) entered forwarding state [ 287.208114][ T2086] br0: entered promiscuous mode [ 300.419970][ T2126] br0.100: entered promiscuous mode [ 306.418845][ T2141] br0.100: left promiscuous mode [ 309.911278][ T2168] br0.100: entered allmulticast mode [ 309.911510][ T2168] br0: entered allmulticast mode [ 315.920914][ T2183] br0.100: left allmulticast mode [ 315.921460][ T2183] br0: left allmulticast mode [ 321.329885][ T2251] br0: left promiscuous mode [ 321.562115][ T2255] br0: port 1(veth1) entered disabled state [ 322.054435][ T2260] veth1: left allmulticast mode [ 322.054718][ T2260] veth1: left promiscuous mode [ 322.055063][ T2260] br0: port 1(veth1) entered disabled state [ 324.055976][ T2292] br0: port 1(veth1) entered blocking state [ 324.056288][ T2292] br0: port 1(veth1) entered disabled state [ 324.056564][ T2292] veth1: entered allmulticast mode [ 324.058500][ T2292] veth1: entered promiscuous mode [ 324.059866][ T2292] br0: port 1(veth1) entered blocking state [ 324.060117][ T2292] br0: port 1(veth1) entered forwarding state [ 324.612585][ T2299] br0: port 1(veth1) entered disabled state [ 324.614105][ T2299] br0: port 1(veth1) entered blocking state [ 324.614452][ T2299] br0: port 1(veth1) entered forwarding state [ 325.416044][ T2310] br0: entered promiscuous mode [ 338.802154][ T2352] br0.100: entered promiscuous mode [ 344.785675][ T2367] br0.100: left promiscuous mode [ 348.111285][ T2394] br0.100: entered allmulticast mode [ 348.111521][ T2394] br0: entered allmulticast mode [ 354.047471][ T2409] br0.100: left allmulticast mode [ 354.047810][ T2409] br0: left allmulticast mode [ 359.187678][ T2479] br0: left promiscuous mode [ 359.432163][ T2483] br0: port 1(veth1) entered disabled state [ 359.861689][ T2488] veth1: left allmulticast mode [ 359.861936][ T2488] veth1: left promiscuous mode [ 359.862611][ T2488] br0: port 1(veth1) entered disabled state