[ 18.488496][ T298] veth1: entered promiscuous mode [ 18.742640][ T302] veth1: left promiscuous mode [ 20.614653][ T325] veth1: entered promiscuous mode [ 43.523539][ T407] veth1: entered allmulticast mode [ 49.542564][ T422] veth1: left allmulticast mode [ 50.478727][ T437] [ 50.479004][ T437] ============================= [ 50.479163][ T437] WARNING: suspicious RCU usage [ 50.479344][ T437] 6.14.0-rc6-virtme #1 Not tainted [ 50.479498][ T437] ----------------------------- [ 50.479652][ T437] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage! [ 50.479912][ T437] [ 50.479912][ T437] other info that might help us debug this: [ 50.479912][ T437] [ 50.480202][ T437] [ 50.480202][ T437] rcu_scheduler_active = 2, debug_locks = 1 [ 50.480454][ T437] 1 lock held by mausezahn/437: [ 50.480610][ T437] #0: ffffffffba95b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f0/0x18d0 [ 50.480905][ T437] [ 50.480905][ T437] stack backtrace: [ 50.481100][ T437] CPU: 3 UID: 0 PID: 437 Comm: mausezahn Not tainted 6.14.0-rc6-virtme #1 [ 50.481105][ T437] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 50.481107][ T437] Call Trace: [ 50.481109][ T437] [ 50.481112][ T437] dump_stack_lvl+0xb0/0xd0 [ 50.481120][ T437] lockdep_rcu_suspicious+0x1ea/0x280 [ 50.481132][ T437] dev_hard_start_xmit+0x2fc/0x3f0 [ 50.481142][ T437] __dev_queue_xmit+0xfaf/0x18d0 [ 50.481156][ T437] ? __pfx___dev_queue_xmit+0x10/0x10 [ 50.481161][ T437] ? packet_parse_headers+0x231/0x9c0 [ 50.481171][ T437] ? __pfx_sock_alloc_send_pskb+0x10/0x10 [ 50.481178][ T437] ? __pfx_packet_parse_headers+0x10/0x10 [ 50.481182][ T437] ? skb_copy_datagram_from_iter+0xe6/0x6f0 [ 50.481189][ T437] ? dev_get_by_index+0xb2/0x190 [ 50.481201][ T437] packet_snd+0xd0c/0x19d0 [ 50.481220][ T437] ? __lock_release+0x103/0x460 [ 50.481226][ T437] ? __might_fault+0x11b/0x170 [ 50.481238][ T437] ? __pfx_packet_snd+0x10/0x10 [ 50.481242][ T437] ? trace_lock_acquire+0x14c/0x1f0 [ 50.481246][ T437] ? __might_fault+0x11b/0x170 [ 50.481258][ T437] ? lock_acquire+0x32/0xc0 [ 50.481269][ T437] ? __might_fault+0x11b/0x170 [ 50.481288][ T437] __sys_sendto+0x3c3/0x450 [ 50.481295][ T437] ? __pfx___sys_sendto+0x10/0x10 [ 50.481310][ T437] ? sock_ioctl+0x3b6/0x590 [ 50.481315][ T437] ? _copy_to_user+0x5c/0x80 [ 50.481324][ T437] ? __pfx_put_timespec64+0x10/0x10 [ 50.481334][ T437] ? posix_cpu_clock_get+0xe1/0x240 [ 50.481343][ T437] ? __x64_sys_clock_gettime+0x17a/0x200 [ 50.481348][ T437] ? __pfx___x64_sys_clock_gettime+0x10/0x10 [ 50.481355][ T437] __x64_sys_sendto+0xe0/0x1c0 [ 50.481359][ T437] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 50.481365][ T437] do_syscall_64+0xc1/0x1d0 [ 50.481374][ T437] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 50.481380][ T437] RIP: 0033:0x7f6f1ddb8a4a [ 50.481384][ T437] 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 [ 50.481388][ T437] RSP: 002b:00007ffcf5e71b38 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 50.481392][ T437] RAX: ffffffffffffffda RBX: 000000001d7a99d0 RCX: 00007f6f1ddb8a4a [ 50.481395][ T437] RDX: 000000000000003a RSI: 000000001d7a9c02 RDI: 0000000000000005 [ 50.481397][ T437] RBP: 000000001d7a9c02 R08: 00007ffcf5e71b40 R09: 0000000000000014 [ 50.481400][ T437] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 50.481403][ T437] R13: 000000000000003a R14: 00007ffcf5e71b40 R15: 0000000000000000 [ 50.481427][ T437] [ 64.352162][ T587] veth1: left promiscuous mode [ 64.663663][ T592] ip (592) used greatest stack depth: 24184 bytes left [ 67.110245][ T626] br0: port 1(veth1) entered blocking state [ 67.110587][ T626] br0: port 1(veth1) entered disabled state [ 67.110878][ T626] veth1: entered allmulticast mode [ 67.113948][ T626] veth1: entered promiscuous mode [ 67.201008][ T40] br0: port 1(veth1) entered blocking state [ 67.201464][ T40] br0: port 1(veth1) entered forwarding state [ 67.616649][ T634] br0: port 1(veth1) entered disabled state [ 67.619153][ T634] br0: port 1(veth1) entered blocking state [ 67.619473][ T634] br0: port 1(veth1) entered forwarding state [ 68.151092][ T641] br0: entered promiscuous mode [ 90.890899][ T724] br0: entered allmulticast mode [ 96.885994][ T739] br0: left allmulticast mode [ 102.231911][ T807] br0: left promiscuous mode [ 102.514077][ T812] br0: port 1(veth1) entered disabled state [ 103.001562][ T817] veth1: left allmulticast mode [ 103.001797][ T817] veth1: left promiscuous mode [ 103.002170][ T817] br0: port 1(veth1) entered disabled state [ 104.830546][ T846] br0: port 1(veth1) entered blocking state [ 104.830886][ T846] br0: port 1(veth1) entered disabled state [ 104.831178][ T846] veth1: entered allmulticast mode [ 104.833116][ T846] veth1: entered promiscuous mode [ 104.834614][ T846] br0: port 1(veth1) entered blocking state [ 104.834926][ T846] br0: port 1(veth1) entered forwarding state [ 105.359783][ T853] br0: port 1(veth1) entered disabled state [ 105.361481][ T853] br0: port 1(veth1) entered blocking state [ 105.361752][ T853] br0: port 1(veth1) entered forwarding state [ 105.865436][ T860] br0: entered promiscuous mode [ 128.668582][ T942] br0: entered allmulticast mode [ 134.716370][ T957] br0: left allmulticast mode [ 140.274074][ T1025] br0: left promiscuous mode [ 140.565830][ T1030] br0: port 1(veth1) entered disabled state [ 141.064488][ T1035] veth1: left allmulticast mode [ 141.064733][ T1035] veth1: left promiscuous mode [ 141.065056][ T1035] br0: port 1(veth1) entered disabled state [ 142.374996][ T1061] veth1: entered promiscuous mode [ 142.578075][ T1065] veth1: left promiscuous mode [ 143.388077][ T1074] 8021q: 802.1Q VLAN Support v1.8 [ 145.137047][ T1096] veth1: entered promiscuous mode [ 158.578435][ T1136] veth1.100: entered promiscuous mode [ 164.638965][ T1151] veth1.100: left promiscuous mode [ 168.023752][ T1178] veth1.100: entered allmulticast mode [ 168.023995][ T1178] veth1: entered allmulticast mode [ 174.120351][ T1193] veth1.100: left allmulticast mode [ 174.120576][ T1193] veth1: left allmulticast mode [ 189.223819][ T1357] veth1: left promiscuous mode [ 191.134818][ T1391] veth1: entered promiscuous mode [ 191.320463][ T1395] veth1: left promiscuous mode [ 193.824301][ T1426] br0: port 1(veth1) entered blocking state [ 193.824769][ T1426] br0: port 1(veth1) entered disabled state [ 193.825200][ T1426] veth1: entered allmulticast mode [ 193.829972][ T1426] veth1: entered promiscuous mode [ 193.831657][ T1426] br0: port 1(veth1) entered blocking state [ 193.832156][ T1426] br0: port 1(veth1) entered forwarding state [ 193.847324][ T1426] ip (1426) used greatest stack depth: 23960 bytes left [ 208.289125][ T1471] veth1.100: entered promiscuous mode [ 215.399354][ T1487] veth1.100: left promiscuous mode [ 218.961369][ T1514] veth1.100: entered allmulticast mode [ 225.041030][ T1529] veth1.100: left allmulticast mode [ 240.288319][ T1694] veth1: left allmulticast mode [ 240.288722][ T1694] veth1: left promiscuous mode [ 240.289235][ T1694] br0: port 1(veth1) entered disabled state [ 242.381644][ T1727] veth1: entered promiscuous mode [ 242.611359][ T1731] veth1: left promiscuous mode [ 245.390696][ T1762] br0: port 1(veth1) entered blocking state [ 245.391250][ T1762] br0: port 1(veth1) entered disabled state [ 245.391611][ T1762] veth1: entered allmulticast mode [ 245.393981][ T1762] veth1: entered promiscuous mode [ 245.395372][ T1762] br0: port 1(veth1) entered blocking state [ 245.395735][ T1762] br0: port 1(veth1) entered forwarding state [ 259.439665][ T1807] veth1.100: entered promiscuous mode [ 265.620098][ T1822] veth1.100: left promiscuous mode [ 269.168743][ T1849] veth1.100: entered allmulticast mode [ 275.265381][ T1864] veth1.100: left allmulticast mode [ 291.036424][ T2029] veth1: left allmulticast mode [ 291.036823][ T2029] veth1: left promiscuous mode [ 291.037386][ T2029] br0: port 1(veth1) entered disabled state [ 294.175375][ T2069] br0: port 1(veth1) entered blocking state [ 294.175670][ T2069] br0: port 1(veth1) entered disabled state [ 294.175977][ T2069] veth1: entered allmulticast mode [ 294.179778][ T2069] veth1: entered promiscuous mode [ 294.268945][ T628] br0: port 1(veth1) entered blocking state [ 294.269271][ T628] br0: port 1(veth1) entered forwarding state [ 294.728897][ T2076] br0: port 1(veth1) entered disabled state [ 294.730478][ T2076] br0: port 1(veth1) entered blocking state [ 294.730764][ T2076] br0: port 1(veth1) entered forwarding state [ 295.632967][ T2087] br0: entered promiscuous mode [ 309.201860][ T2127] br0.100: entered promiscuous mode [ 315.295174][ T2142] br0.100: left promiscuous mode [ 318.842886][ T2169] br0.100: entered allmulticast mode [ 318.843150][ T2169] br0: entered allmulticast mode [ 324.976634][ T2184] br0.100: left allmulticast mode [ 324.977009][ T2184] br0: left allmulticast mode [ 330.567781][ T2252] br0: left promiscuous mode [ 330.808615][ T2256] br0: port 1(veth1) entered disabled state [ 331.345873][ T2261] veth1: left allmulticast mode [ 331.346158][ T2261] veth1: left promiscuous mode [ 331.346534][ T2261] br0: port 1(veth1) entered disabled state [ 333.599501][ T2293] br0: port 1(veth1) entered blocking state [ 333.600024][ T2293] br0: port 1(veth1) entered disabled state [ 333.601121][ T2293] veth1: entered allmulticast mode [ 333.604575][ T2293] veth1: entered promiscuous mode [ 333.606446][ T2293] br0: port 1(veth1) entered blocking state [ 333.606920][ T2293] br0: port 1(veth1) entered forwarding state [ 334.226574][ T2300] br0: port 1(veth1) entered disabled state [ 334.228815][ T2300] br0: port 1(veth1) entered blocking state [ 334.229146][ T2300] br0: port 1(veth1) entered forwarding state [ 335.182054][ T2311] br0: entered promiscuous mode [ 348.954020][ T2353] br0.100: entered promiscuous mode [ 355.165387][ T2368] br0.100: left promiscuous mode [ 358.777896][ T2395] br0.100: entered allmulticast mode [ 358.778168][ T2395] br0: entered allmulticast mode [ 364.945918][ T2410] br0.100: left allmulticast mode [ 364.946287][ T2410] br0: left allmulticast mode [ 371.172154][ T2480] br0: left promiscuous mode [ 371.366128][ T2481] ip (2481) used greatest stack depth: 23728 bytes left [ 371.437012][ T2484] br0: port 1(veth1) entered disabled state [ 371.980258][ T2489] veth1: left allmulticast mode [ 371.980603][ T2489] veth1: left promiscuous mode [ 371.981096][ T2489] br0: port 1(veth1) entered disabled state