[ 64.097173][ T789] veth1: entered promiscuous mode [ 64.297471][ T793] veth1: left promiscuous mode [ 66.009300][ T815] veth1: entered promiscuous mode [ 88.572691][ T897] veth1: entered allmulticast mode [ 94.626327][ T912] veth1: left allmulticast mode [ 95.442334][ T927] [ 95.442646][ T927] ============================= [ 95.442823][ T927] WARNING: suspicious RCU usage [ 95.442994][ T927] 6.14.0-rc6-virtme #1 Not tainted [ 95.443176][ T927] ----------------------------- [ 95.443350][ T927] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage! [ 95.443647][ T927] [ 95.443647][ T927] other info that might help us debug this: [ 95.443647][ T927] [ 95.443950][ T927] [ 95.443950][ T927] rcu_scheduler_active = 2, debug_locks = 1 [ 95.444200][ T927] 1 lock held by mausezahn/927: [ 95.444367][ T927] #0: ffffffffbb35b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f0/0x18d0 [ 95.444672][ T927] [ 95.444672][ T927] stack backtrace: [ 95.444871][ T927] CPU: 2 UID: 0 PID: 927 Comm: mausezahn Not tainted 6.14.0-rc6-virtme #1 [ 95.444876][ T927] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 95.444878][ T927] Call Trace: [ 95.444880][ T927] [ 95.444883][ T927] dump_stack_lvl+0xb0/0xd0 [ 95.444891][ T927] lockdep_rcu_suspicious+0x1ea/0x280 [ 95.444904][ T927] dev_hard_start_xmit+0x2fc/0x3f0 [ 95.444914][ T927] __dev_queue_xmit+0xfaf/0x18d0 [ 95.444929][ T927] ? __pfx___dev_queue_xmit+0x10/0x10 [ 95.444933][ T927] ? packet_parse_headers+0x231/0x9c0 [ 95.444943][ T927] ? __pfx_sock_alloc_send_pskb+0x10/0x10 [ 95.444950][ T927] ? __pfx_packet_parse_headers+0x10/0x10 [ 95.444955][ T927] ? skb_copy_datagram_from_iter+0xe6/0x6f0 [ 95.444961][ T927] ? dev_get_by_index+0xb2/0x190 [ 95.444973][ T927] packet_snd+0xd0c/0x19d0 [ 95.444985][ T927] ? __lock_release+0x103/0x460 [ 95.444989][ T927] ? __might_fault+0x11b/0x170 [ 95.444997][ T927] ? __pfx_packet_snd+0x10/0x10 [ 95.444999][ T927] ? trace_lock_acquire+0x14c/0x1f0 [ 95.445002][ T927] ? __might_fault+0x11b/0x170 [ 95.445009][ T927] ? lock_acquire+0x32/0xc0 [ 95.445016][ T927] ? __might_fault+0x11b/0x170 [ 95.445027][ T927] __sys_sendto+0x3c3/0x450 [ 95.445033][ T927] ? __pfx___sys_sendto+0x10/0x10 [ 95.445048][ T927] ? sock_ioctl+0x3b6/0x590 [ 95.445053][ T927] ? _copy_to_user+0x5c/0x80 [ 95.445063][ T927] ? __pfx_put_timespec64+0x10/0x10 [ 95.445073][ T927] ? posix_cpu_clock_get+0xe1/0x240 [ 95.445085][ T927] ? __x64_sys_clock_gettime+0x17a/0x200 [ 95.445090][ T927] ? __pfx___x64_sys_clock_gettime+0x10/0x10 [ 95.445097][ T927] __x64_sys_sendto+0xe0/0x1c0 [ 95.445101][ T927] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 95.445107][ T927] do_syscall_64+0xc1/0x1d0 [ 95.445116][ T927] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 95.445122][ T927] RIP: 0033:0x7f7c38d31a4a [ 95.445128][ T927] 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 [ 95.445131][ T927] RSP: 002b:00007fff2212ba68 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 95.445135][ T927] RAX: ffffffffffffffda RBX: 0000000005e699d0 RCX: 00007f7c38d31a4a [ 95.445138][ T927] RDX: 000000000000003a RSI: 0000000005e69c02 RDI: 0000000000000005 [ 95.445139][ T927] RBP: 0000000005e69c02 R08: 00007fff2212ba70 R09: 0000000000000014 [ 95.445141][ T927] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 95.445143][ T927] R13: 000000000000003a R14: 00007fff2212ba70 R15: 0000000000000000 [ 95.445159][ T927] [ 108.920305][ T1076] veth1: left promiscuous mode [ 111.469155][ T1115] br0: port 1(veth1) entered blocking state [ 111.469491][ T1115] br0: port 1(veth1) entered disabled state [ 111.469890][ T1115] veth1: entered allmulticast mode [ 111.471908][ T1115] veth1: entered promiscuous mode [ 111.557832][ T38] br0: port 1(veth1) entered blocking state [ 111.558377][ T38] br0: port 1(veth1) entered forwarding state [ 111.992418][ T1122] br0: port 1(veth1) entered disabled state [ 111.996061][ T1122] br0: port 1(veth1) entered blocking state [ 111.996367][ T1122] br0: port 1(veth1) entered forwarding state [ 112.460174][ T1129] br0: entered promiscuous mode [ 134.992040][ T1211] br0: entered allmulticast mode [ 140.942720][ T1226] br0: left allmulticast mode [ 146.235238][ T1294] br0: left promiscuous mode [ 146.516376][ T1299] br0: port 1(veth1) entered disabled state [ 147.065224][ T1304] veth1: left allmulticast mode [ 147.065469][ T1304] veth1: left promiscuous mode [ 147.065806][ T1304] br0: port 1(veth1) entered disabled state [ 149.069632][ T1333] br0: port 1(veth1) entered blocking state [ 149.070008][ T1333] br0: port 1(veth1) entered disabled state [ 149.070383][ T1333] veth1: entered allmulticast mode [ 149.072724][ T1333] veth1: entered promiscuous mode [ 149.073932][ T1333] br0: port 1(veth1) entered blocking state [ 149.074253][ T1333] br0: port 1(veth1) entered forwarding state [ 149.589441][ T1340] br0: port 1(veth1) entered disabled state [ 149.590732][ T1340] br0: port 1(veth1) entered blocking state [ 149.591000][ T1340] br0: port 1(veth1) entered forwarding state [ 150.095908][ T1347] br0: entered promiscuous mode [ 172.853009][ T1429] br0: entered allmulticast mode [ 178.872474][ T1444] br0: left allmulticast mode [ 184.207455][ T1512] br0: left promiscuous mode [ 184.476923][ T1517] br0: port 1(veth1) entered disabled state [ 184.972774][ T1522] veth1: left allmulticast mode [ 184.973026][ T1522] veth1: left promiscuous mode [ 184.973658][ T1522] br0: port 1(veth1) entered disabled state [ 186.161165][ T1548] veth1: entered promiscuous mode [ 186.360204][ T1552] veth1: left promiscuous mode [ 188.782902][ T1582] veth1: entered promiscuous mode [ 202.095347][ T1622] veth1.100: entered promiscuous mode [ 208.043930][ T1637] veth1.100: left promiscuous mode [ 211.294792][ T1664] veth1.100: entered allmulticast mode [ 211.295038][ T1664] veth1: entered allmulticast mode [ 217.297268][ T1679] veth1.100: left allmulticast mode [ 217.297501][ T1679] veth1: left allmulticast mode [ 231.563027][ T1843] veth1: left promiscuous mode [ 233.185248][ T1876] veth1: entered promiscuous mode [ 233.378749][ T1880] veth1: left promiscuous mode [ 235.675775][ T1911] br0: port 1(veth1) entered blocking state [ 235.676296][ T1911] br0: port 1(veth1) entered disabled state [ 235.676881][ T1911] veth1: entered allmulticast mode [ 235.678782][ T1911] veth1: entered promiscuous mode [ 235.679853][ T1911] br0: port 1(veth1) entered blocking state [ 235.680116][ T1911] br0: port 1(veth1) entered forwarding state [ 249.087783][ T1956] veth1.100: entered promiscuous mode [ 255.131125][ T1971] veth1.100: left promiscuous mode [ 258.497537][ T1998] veth1.100: entered allmulticast mode [ 264.482130][ T2013] veth1.100: left allmulticast mode [ 278.413750][ T2178] veth1: left allmulticast mode [ 278.413993][ T2178] veth1: left promiscuous mode [ 278.414324][ T2178] br0: port 1(veth1) entered disabled state [ 280.183961][ T2212] veth1: entered promiscuous mode [ 280.385988][ T2216] veth1: left promiscuous mode [ 282.695776][ T2247] br0: port 1(veth1) entered blocking state [ 282.696144][ T2247] br0: port 1(veth1) entered disabled state [ 282.696399][ T2247] veth1: entered allmulticast mode [ 282.698658][ T2247] veth1: entered promiscuous mode [ 282.699694][ T2247] br0: port 1(veth1) entered blocking state [ 282.699943][ T2247] br0: port 1(veth1) entered forwarding state [ 296.085669][ T2292] veth1.100: entered promiscuous mode [ 302.100909][ T2307] veth1.100: left promiscuous mode [ 305.355489][ T2334] veth1.100: entered allmulticast mode [ 311.335942][ T2349] veth1.100: left allmulticast mode [ 325.479319][ T2514] veth1: left allmulticast mode [ 325.479633][ T2514] veth1: left promiscuous mode [ 325.479955][ T2514] br0: port 1(veth1) entered disabled state [ 327.900941][ T2554] br0: port 1(veth1) entered blocking state [ 327.901525][ T2554] br0: port 1(veth1) entered disabled state [ 327.901816][ T2554] veth1: entered allmulticast mode [ 327.903716][ T2554] veth1: entered promiscuous mode [ 327.974672][ T41] br0: port 1(veth1) entered blocking state [ 327.974960][ T41] br0: port 1(veth1) entered forwarding state [ 328.383468][ T2561] br0: port 1(veth1) entered disabled state [ 328.384950][ T2561] br0: port 1(veth1) entered blocking state [ 328.385328][ T2561] br0: port 1(veth1) entered forwarding state [ 329.148713][ T2572] br0: entered promiscuous mode [ 342.290906][ T2612] br0.100: entered promiscuous mode [ 348.327298][ T2627] br0.100: left promiscuous mode [ 351.701003][ T2654] br0.100: entered allmulticast mode [ 351.701296][ T2654] br0: entered allmulticast mode [ 357.682797][ T2669] br0.100: left allmulticast mode [ 357.683057][ T2669] br0: left allmulticast mode [ 362.847978][ T2737] br0: left promiscuous mode [ 363.084602][ T2741] br0: port 1(veth1) entered disabled state [ 363.527772][ T2746] veth1: left allmulticast mode [ 363.529073][ T2746] veth1: left promiscuous mode [ 363.529637][ T2746] br0: port 1(veth1) entered disabled state [ 365.722999][ T2778] br0: port 1(veth1) entered blocking state [ 365.723300][ T2778] br0: port 1(veth1) entered disabled state [ 365.723572][ T2778] veth1: entered allmulticast mode [ 365.725689][ T2778] veth1: entered promiscuous mode [ 365.726753][ T2778] br0: port 1(veth1) entered blocking state [ 365.727008][ T2778] br0: port 1(veth1) entered forwarding state [ 366.263014][ T2785] br0: port 1(veth1) entered disabled state [ 366.264304][ T2785] br0: port 1(veth1) entered blocking state [ 366.264600][ T2785] br0: port 1(veth1) entered forwarding state [ 367.054228][ T2796] br0: entered promiscuous mode [ 380.466635][ T2838] br0.100: entered promiscuous mode [ 386.482237][ T2853] br0.100: left promiscuous mode [ 389.830005][ T2880] br0.100: entered allmulticast mode [ 389.830333][ T2880] br0: entered allmulticast mode [ 395.827166][ T2895] br0.100: left allmulticast mode [ 395.827399][ T2895] br0: left allmulticast mode [ 401.238515][ T2965] br0: left promiscuous mode [ 401.479062][ T2969] br0: port 1(veth1) entered disabled state [ 401.981758][ T2974] veth1: left allmulticast mode [ 401.982173][ T2974] veth1: left promiscuous mode [ 401.982693][ T2974] br0: port 1(veth1) entered disabled state