[ 13.532026][ T306] 8021q: 802.1Q VLAN Support v1.8 [ 18.665159][ T435] br10: port 1(veth1.10) entered blocking state [ 18.665620][ T435] br10: port 1(veth1.10) entered disabled state [ 18.666032][ T435] veth1.10: entered allmulticast mode [ 18.666237][ T435] veth1: entered allmulticast mode [ 18.668254][ T435] veth1.10: entered promiscuous mode [ 18.668459][ T435] veth1: entered promiscuous mode [ 18.797716][ T440] br10: port 2(veth2.10) entered blocking state [ 18.798065][ T440] br10: port 2(veth2.10) entered disabled state [ 18.798352][ T440] veth2.10: entered allmulticast mode [ 18.798530][ T440] veth2: entered allmulticast mode [ 18.800526][ T440] veth2.10: entered promiscuous mode [ 18.800712][ T440] veth2: entered promiscuous mode [ 18.919254][ T445] br10: port 2(veth2.10) entered blocking state [ 18.919860][ T445] br10: port 2(veth2.10) entered forwarding state [ 18.920597][ T445] br10: port 1(veth1.10) entered blocking state [ 18.920848][ T445] br10: port 1(veth1.10) entered forwarding state [ 19.938308][ T481] br11: port 1(veth1.11) entered blocking state [ 19.938653][ T481] br11: port 1(veth1.11) entered disabled state [ 19.938986][ T481] veth1.11: entered allmulticast mode [ 19.941228][ T481] veth1.11: entered promiscuous mode [ 20.049310][ T486] br11: port 2(veth2.11) entered blocking state [ 20.049635][ T486] br11: port 2(veth2.11) entered disabled state [ 20.049927][ T486] veth2.11: entered allmulticast mode [ 20.052242][ T486] veth2.11: entered promiscuous mode [ 20.163441][ T491] br11: port 2(veth2.11) entered blocking state [ 20.163808][ T491] br11: port 2(veth2.11) entered forwarding state [ 20.164310][ T491] br11: port 1(veth1.11) entered blocking state [ 20.164598][ T491] br11: port 1(veth1.11) entered forwarding state [ 21.188504][ T527] br12: port 1(veth1.12) entered blocking state [ 21.188820][ T527] br12: port 1(veth1.12) entered disabled state [ 21.189144][ T527] veth1.12: entered allmulticast mode [ 21.191103][ T527] veth1.12: entered promiscuous mode [ 21.319978][ T532] br12: port 2(veth2.12) entered blocking state [ 21.320367][ T532] br12: port 2(veth2.12) entered disabled state [ 21.320644][ T532] veth2.12: entered allmulticast mode [ 21.322532][ T532] veth2.12: entered promiscuous mode [ 21.431940][ T537] br12: port 2(veth2.12) entered blocking state [ 21.432294][ T537] br12: port 2(veth2.12) entered forwarding state [ 21.432754][ T537] br12: port 1(veth1.12) entered blocking state [ 21.433006][ T537] br12: port 1(veth1.12) entered forwarding state [ 32.085426][ T628] [ 32.085713][ T628] ============================= [ 32.085875][ T628] WARNING: suspicious RCU usage [ 32.086058][ T628] 6.14.0-rc6-virtme #1 Not tainted [ 32.086243][ T628] ----------------------------- [ 32.086472][ T628] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage! [ 32.086745][ T628] [ 32.086745][ T628] other info that might help us debug this: [ 32.086745][ T628] [ 32.087078][ T628] [ 32.087078][ T628] rcu_scheduler_active = 2, debug_locks = 1 [ 32.087335][ T628] 1 lock held by mausezahn/628: [ 32.087502][ T628] #0: ffffffff8d75b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f0/0x18d0 [ 32.087816][ T628] [ 32.087816][ T628] stack backtrace: [ 32.088020][ T628] CPU: 1 UID: 0 PID: 628 Comm: mausezahn Not tainted 6.14.0-rc6-virtme #1 [ 32.088025][ T628] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 32.088028][ T628] Call Trace: [ 32.088030][ T628] [ 32.088032][ T628] dump_stack_lvl+0xb0/0xd0 [ 32.088041][ T628] lockdep_rcu_suspicious+0x1ea/0x280 [ 32.088054][ T628] dev_hard_start_xmit+0x2fc/0x3f0 [ 32.088064][ T628] __dev_queue_xmit+0xfaf/0x18d0 [ 32.088069][ T628] ? __pfx__copy_from_iter+0x10/0x10 [ 32.088079][ T628] ? __pfx_vlan_parse_protocol+0x10/0x10 [8021q] [ 32.088092][ T628] ? __pfx___dev_queue_xmit+0x10/0x10 [ 32.088096][ T628] ? packet_parse_headers+0x231/0x9c0 [ 32.088108][ T628] ? copy_page_from_iter+0xbd/0x120 [ 32.088113][ T628] ? __pfx_packet_parse_headers+0x10/0x10 [ 32.088118][ T628] ? skb_copy_datagram_from_iter+0x29f/0x6f0 [ 32.088133][ T628] packet_snd+0xd0c/0x19d0 [ 32.088144][ T628] ? __lock_release+0x103/0x460 [ 32.088149][ T628] ? __might_fault+0x11b/0x170 [ 32.088157][ T628] ? __pfx_packet_snd+0x10/0x10 [ 32.088159][ T628] ? trace_lock_acquire+0x14c/0x1f0 [ 32.088161][ T628] ? __might_fault+0x11b/0x170 [ 32.088168][ T628] ? lock_acquire+0x32/0xc0 [ 32.088174][ T628] ? __might_fault+0x11b/0x170 [ 32.088185][ T628] __sys_sendto+0x3c3/0x450 [ 32.088191][ T628] ? __pfx___sys_sendto+0x10/0x10 [ 32.088206][ T628] ? sock_ioctl+0x3b6/0x590 [ 32.088210][ T628] ? __pfx___lock_release+0x10/0x10 [ 32.088217][ T628] ? __pfx___up_read+0x10/0x10 [ 32.088226][ T628] ? do_user_addr_fault+0x972/0xe30 [ 32.088236][ T628] ? do_user_addr_fault+0x97c/0xe30 [ 32.088243][ T628] __x64_sys_sendto+0xe0/0x1c0 [ 32.088246][ T628] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 32.088251][ T628] do_syscall_64+0xc1/0x1d0 [ 32.088260][ T628] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 32.088266][ T628] RIP: 0033:0x7ff2b0074a4a [ 32.088270][ T628] 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 [ 32.088273][ T628] RSP: 002b:00007ffe58f34bf8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 32.088277][ T628] RAX: ffffffffffffffda RBX: 000000003ed269d0 RCX: 00007ff2b0074a4a [ 32.088279][ T628] RDX: 0000000000001f6a RSI: 000000003ed298e2 RDI: 0000000000000005 [ 32.088281][ T628] RBP: 000000003ed298e2 R08: 00007ffe58f34c00 R09: 0000000000000014 [ 32.088283][ T628] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 32.088284][ T628] R13: 0000000000001f6a R14: 00007ffe58f34c00 R15: 0000000000000000 [ 32.088300][ T628] [ 430.318769][ T1967] br12: port 2(veth2.12) entered disabled state [ 430.411764][ T1969] br12: port 1(veth1.12) entered disabled state [ 430.609194][ T1973] veth2.12: left allmulticast mode [ 430.609441][ T1973] veth2.12: left promiscuous mode [ 430.609970][ T1973] br12: port 2(veth2.12) entered disabled state [ 430.717357][ T1975] veth1.12: left allmulticast mode [ 430.717604][ T1975] veth1.12: left promiscuous mode [ 430.718103][ T1975] br12: port 1(veth1.12) entered disabled state [ 431.230458][ T1985] br11: port 2(veth2.11) entered disabled state [ 431.333752][ T1987] br11: port 1(veth1.11) entered disabled state [ 431.503135][ T1991] veth2.11: left allmulticast mode [ 431.503389][ T1991] veth2.11: left promiscuous mode [ 431.503894][ T1991] br11: port 2(veth2.11) entered disabled state [ 431.606008][ T1993] veth1.11: left allmulticast mode [ 431.606386][ T1993] veth1.11: left promiscuous mode [ 431.606898][ T1993] br11: port 1(veth1.11) entered disabled state [ 432.119799][ T2001] br10: port 2(veth2.10) entered disabled state [ 432.202623][ T2003] br10: port 1(veth1.10) entered disabled state [ 432.376183][ T2007] veth2.10: left allmulticast mode [ 432.376421][ T2007] veth2: left allmulticast mode [ 432.376634][ T2007] veth2.10: left promiscuous mode [ 432.376824][ T2007] veth2: left promiscuous mode [ 432.378902][ T2007] br10: port 2(veth2.10) entered disabled state [ 432.466618][ T2009] veth1.10: left allmulticast mode [ 432.466880][ T2009] veth1: left allmulticast mode [ 432.467101][ T2009] veth1.10: left promiscuous mode [ 432.467320][ T2009] veth1: left promiscuous mode [ 432.467846][ T2009] br10: port 1(veth1.10) entered disabled state