[ 85.870196][ T994] veth1: entered promiscuous mode [ 86.072872][ T998] veth1: left promiscuous mode [ 86.583024][ T1004] ip (1004) used greatest stack depth: 23576 bytes left [ 87.814017][ T1020] veth1: entered promiscuous mode [ 110.444023][ T1102] veth1: entered allmulticast mode [ 116.425268][ T1117] veth1: left allmulticast mode [ 117.304612][ T1132] [ 117.304848][ T1132] ============================= [ 117.305005][ T1132] WARNING: suspicious RCU usage [ 117.305184][ T1132] 6.14.0-rc6-virtme #1 Not tainted [ 117.305337][ T1132] ----------------------------- [ 117.305486][ T1132] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage! [ 117.305745][ T1132] [ 117.305745][ T1132] other info that might help us debug this: [ 117.305745][ T1132] [ 117.306042][ T1132] [ 117.306042][ T1132] rcu_scheduler_active = 2, debug_locks = 1 [ 117.306275][ T1132] 1 lock held by mausezahn/1132: [ 117.306431][ T1132] #0: ffffffffa255b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f0/0x18d0 [ 117.306736][ T1132] [ 117.306736][ T1132] stack backtrace: [ 117.306920][ T1132] CPU: 1 UID: 0 PID: 1132 Comm: mausezahn Not tainted 6.14.0-rc6-virtme #1 [ 117.306924][ T1132] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 117.306927][ T1132] Call Trace: [ 117.306928][ T1132] [ 117.306930][ T1132] dump_stack_lvl+0xb0/0xd0 [ 117.306938][ T1132] lockdep_rcu_suspicious+0x1ea/0x280 [ 117.306949][ T1132] dev_hard_start_xmit+0x2fc/0x3f0 [ 117.306959][ T1132] __dev_queue_xmit+0xfaf/0x18d0 [ 117.306973][ T1132] ? __pfx___dev_queue_xmit+0x10/0x10 [ 117.306978][ T1132] ? packet_parse_headers+0x231/0x9c0 [ 117.306986][ T1132] ? __pfx_sock_alloc_send_pskb+0x10/0x10 [ 117.306992][ T1132] ? __pfx_packet_parse_headers+0x10/0x10 [ 117.306996][ T1132] ? skb_copy_datagram_from_iter+0xe6/0x6f0 [ 117.307002][ T1132] ? dev_get_by_index+0xb2/0x190 [ 117.307013][ T1132] packet_snd+0xd0c/0x19d0 [ 117.307024][ T1132] ? __lock_release+0x103/0x460 [ 117.307028][ T1132] ? __might_fault+0x11b/0x170 [ 117.307035][ T1132] ? __pfx_packet_snd+0x10/0x10 [ 117.307037][ T1132] ? trace_lock_acquire+0x14c/0x1f0 [ 117.307039][ T1132] ? __might_fault+0x11b/0x170 [ 117.307046][ T1132] ? lock_acquire+0x32/0xc0 [ 117.307052][ T1132] ? __might_fault+0x11b/0x170 [ 117.307063][ T1132] __sys_sendto+0x3c3/0x450 [ 117.307069][ T1132] ? __pfx___sys_sendto+0x10/0x10 [ 117.307083][ T1132] ? sock_ioctl+0x3b6/0x590 [ 117.307091][ T1132] ? _copy_to_user+0x5c/0x80 [ 117.307099][ T1132] ? __pfx_put_timespec64+0x10/0x10 [ 117.307107][ T1132] ? posix_cpu_clock_get+0xe1/0x240 [ 117.307115][ T1132] ? __x64_sys_clock_gettime+0x17a/0x200 [ 117.307120][ T1132] ? __pfx___x64_sys_clock_gettime+0x10/0x10 [ 117.307127][ T1132] __x64_sys_sendto+0xe0/0x1c0 [ 117.307131][ T1132] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 117.307136][ T1132] do_syscall_64+0xc1/0x1d0 [ 117.307144][ T1132] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 117.307149][ T1132] RIP: 0033:0x7f24871b1a4a [ 117.307154][ T1132] 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 [ 117.307157][ T1132] RSP: 002b:00007ffe36af6df8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 117.307160][ T1132] RAX: ffffffffffffffda RBX: 000000003f2b49d0 RCX: 00007f24871b1a4a [ 117.307162][ T1132] RDX: 000000000000003a RSI: 000000003f2b4c02 RDI: 0000000000000005 [ 117.307164][ T1132] RBP: 000000003f2b4c02 R08: 00007ffe36af6e00 R09: 0000000000000014 [ 117.307166][ T1132] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 117.307167][ T1132] R13: 000000000000003a R14: 00007ffe36af6e00 R15: 0000000000000000 [ 117.307183][ T1132] [ 130.342005][ T1281] veth1: left promiscuous mode [ 132.576251][ T1319] br0: port 1(veth1) entered blocking state [ 132.576631][ T1319] br0: port 1(veth1) entered disabled state [ 132.577042][ T1319] veth1: entered allmulticast mode [ 132.580205][ T1319] veth1: entered promiscuous mode [ 132.664148][ T45] br0: port 1(veth1) entered blocking state [ 132.664421][ T45] br0: port 1(veth1) entered forwarding state [ 133.070703][ T1326] br0: port 1(veth1) entered disabled state [ 133.073295][ T1326] br0: port 1(veth1) entered blocking state [ 133.073596][ T1326] br0: port 1(veth1) entered forwarding state [ 133.584082][ T1333] br0: entered promiscuous mode [ 156.158405][ T1415] br0: entered allmulticast mode [ 162.134489][ T1430] br0: left allmulticast mode [ 167.305570][ T1498] br0: left promiscuous mode [ 167.526922][ T1503] br0: port 1(veth1) entered disabled state [ 167.954763][ T1508] veth1: left allmulticast mode [ 167.955149][ T1508] veth1: left promiscuous mode [ 167.955641][ T1508] br0: port 1(veth1) entered disabled state [ 169.607349][ T1537] br0: port 1(veth1) entered blocking state [ 169.607705][ T1537] br0: port 1(veth1) entered disabled state [ 169.607989][ T1537] veth1: entered allmulticast mode [ 169.611223][ T1537] veth1: entered promiscuous mode [ 169.612292][ T1537] br0: port 1(veth1) entered blocking state [ 169.612543][ T1537] br0: port 1(veth1) entered forwarding state [ 170.100149][ T1544] br0: port 1(veth1) entered disabled state [ 170.101342][ T1544] br0: port 1(veth1) entered blocking state [ 170.101625][ T1544] br0: port 1(veth1) entered forwarding state [ 170.582646][ T1551] br0: entered promiscuous mode [ 192.919146][ T1633] br0: entered allmulticast mode [ 198.821045][ T1648] br0: left allmulticast mode [ 204.073372][ T1716] br0: left promiscuous mode [ 204.347467][ T1721] br0: port 1(veth1) entered disabled state [ 204.845564][ T1726] veth1: left allmulticast mode [ 204.845830][ T1726] veth1: left promiscuous mode [ 204.846181][ T1726] br0: port 1(veth1) entered disabled state [ 206.119089][ T1752] veth1: entered promiscuous mode [ 206.309124][ T1756] veth1: left promiscuous mode [ 208.569164][ T1786] veth1: entered promiscuous mode [ 221.946111][ T1827] veth1.100: entered promiscuous mode [ 228.001267][ T1842] veth1.100: left promiscuous mode [ 231.383676][ T1869] veth1.100: entered allmulticast mode [ 231.383947][ T1869] veth1: entered allmulticast mode [ 237.301608][ T1884] veth1.100: left allmulticast mode [ 237.301872][ T1884] veth1: left allmulticast mode [ 251.927108][ T2048] veth1: left promiscuous mode [ 253.727834][ T2081] veth1: entered promiscuous mode [ 253.946602][ T2085] veth1: left promiscuous mode [ 256.309868][ T2116] br0: port 1(veth1) entered blocking state [ 256.310642][ T2116] br0: port 1(veth1) entered disabled state [ 256.310916][ T2116] veth1: entered allmulticast mode [ 256.312799][ T2116] veth1: entered promiscuous mode [ 256.313849][ T2116] br0: port 1(veth1) entered blocking state [ 256.314124][ T2116] br0: port 1(veth1) entered forwarding state [ 269.910119][ T2161] veth1.100: entered promiscuous mode [ 275.873300][ T2176] veth1.100: left promiscuous mode [ 279.203472][ T2203] veth1.100: entered allmulticast mode [ 285.222307][ T2218] veth1.100: left allmulticast mode [ 299.399972][ T2383] veth1: left allmulticast mode [ 299.400215][ T2383] veth1: left promiscuous mode [ 299.400526][ T2383] br0: port 1(veth1) entered disabled state [ 301.139003][ T2416] veth1: entered promiscuous mode [ 301.333413][ T2420] veth1: left promiscuous mode [ 303.616911][ T2451] br0: port 1(veth1) entered blocking state [ 303.618179][ T2451] br0: port 1(veth1) entered disabled state [ 303.618462][ T2451] veth1: entered allmulticast mode [ 303.620362][ T2451] veth1: entered promiscuous mode [ 303.621370][ T2451] br0: port 1(veth1) entered blocking state [ 303.621631][ T2451] br0: port 1(veth1) entered forwarding state [ 317.301816][ T2496] veth1.100: entered promiscuous mode [ 323.315628][ T2511] veth1.100: left promiscuous mode [ 326.701778][ T2538] veth1.100: entered allmulticast mode [ 332.680504][ T2553] veth1.100: left allmulticast mode [ 346.853840][ T2718] veth1: left allmulticast mode [ 346.854057][ T2718] veth1: left promiscuous mode [ 346.854376][ T2718] br0: port 1(veth1) entered disabled state [ 349.331769][ T2758] br0: port 1(veth1) entered blocking state [ 349.332181][ T2758] br0: port 1(veth1) entered disabled state [ 349.332507][ T2758] veth1: entered allmulticast mode [ 349.334862][ T2758] veth1: entered promiscuous mode [ 349.411326][ T70] br0: port 1(veth1) entered blocking state [ 349.411626][ T70] br0: port 1(veth1) entered forwarding state [ 349.809515][ T2765] br0: port 1(veth1) entered disabled state [ 349.811225][ T2765] br0: port 1(veth1) entered blocking state [ 349.811540][ T2765] br0: port 1(veth1) entered forwarding state [ 350.540955][ T2776] br0: entered promiscuous mode [ 363.819853][ T2816] br0.100: entered promiscuous mode [ 369.821944][ T2831] br0.100: left promiscuous mode [ 373.143527][ T2858] br0.100: entered allmulticast mode [ 373.143750][ T2858] br0: entered allmulticast mode [ 379.100569][ T2873] br0.100: left allmulticast mode [ 379.100781][ T2873] br0: left allmulticast mode [ 384.446452][ T2941] br0: left promiscuous mode [ 384.665342][ T2945] br0: port 1(veth1) entered disabled state [ 385.096633][ T2950] veth1: left allmulticast mode [ 385.096940][ T2950] veth1: left promiscuous mode [ 385.097616][ T2950] br0: port 1(veth1) entered disabled state [ 387.024769][ T2982] br0: port 1(veth1) entered blocking state [ 387.025066][ T2982] br0: port 1(veth1) entered disabled state [ 387.025372][ T2982] veth1: entered allmulticast mode [ 387.028120][ T2982] veth1: entered promiscuous mode [ 387.029244][ T2982] br0: port 1(veth1) entered blocking state [ 387.029508][ T2982] br0: port 1(veth1) entered forwarding state [ 387.530022][ T2989] br0: port 1(veth1) entered disabled state [ 387.531209][ T2989] br0: port 1(veth1) entered blocking state [ 387.531467][ T2989] br0: port 1(veth1) entered forwarding state [ 388.296943][ T3000] br0: entered promiscuous mode [ 401.565829][ T3042] br0.100: entered promiscuous mode [ 407.527667][ T3057] br0.100: left promiscuous mode [ 410.927526][ T3084] br0.100: entered allmulticast mode [ 410.927750][ T3084] br0: entered allmulticast mode [ 416.890785][ T3099] br0.100: left allmulticast mode [ 416.891052][ T3099] br0: left allmulticast mode [ 422.386700][ T3169] br0: left promiscuous mode [ 422.576417][ T3173] br0: port 1(veth1) entered disabled state [ 423.038385][ T3178] veth1: left allmulticast mode [ 423.038606][ T3178] veth1: left promiscuous mode [ 423.038908][ T3178] br0: port 1(veth1) entered disabled state