[ 13.103410][ T310] 8021q: 802.1Q VLAN Support v1.8 [ 16.313927][ T380] GACT probability NOT on [ 17.647101][ T416] br10: port 1(veth1.10) entered blocking state [ 17.647596][ T416] br10: port 1(veth1.10) entered disabled state [ 17.647996][ T416] veth1.10: entered allmulticast mode [ 17.648196][ T416] veth1: entered allmulticast mode [ 17.651802][ T416] veth1.10: entered promiscuous mode [ 17.652002][ T416] veth1: entered promiscuous mode [ 18.124204][ T433] br11: port 1(veth1.11) entered blocking state [ 18.124738][ T433] br11: port 1(veth1.11) entered disabled state [ 18.125067][ T433] veth1.11: entered allmulticast mode [ 18.127052][ T433] veth1.11: entered promiscuous mode [ 18.992199][ T464] br10: port 2(veth2.10) entered blocking state [ 18.992492][ T464] br10: port 2(veth2.10) entered disabled state [ 18.993449][ T464] veth2.10: entered allmulticast mode [ 18.993685][ T464] veth2: entered allmulticast mode [ 18.995605][ T464] veth2.10: entered promiscuous mode [ 18.995818][ T464] veth2: entered promiscuous mode [ 19.459589][ T481] br11: port 2(veth2.11) entered blocking state [ 19.460308][ T481] br11: port 2(veth2.11) entered disabled state [ 19.461213][ T481] veth2.11: entered allmulticast mode [ 19.463250][ T481] veth2.11: entered promiscuous mode [ 19.911507][ T493] br10: port 2(veth2.10) entered blocking state [ 19.912062][ T493] br10: port 2(veth2.10) entered forwarding state [ 19.912848][ T493] br10: port 1(veth1.10) entered blocking state [ 19.913150][ T493] br10: port 1(veth1.10) entered forwarding state [ 20.058249][ T498] br11: port 2(veth2.11) entered blocking state [ 20.058578][ T498] br11: port 2(veth2.11) entered forwarding state [ 20.059061][ T498] br11: port 1(veth1.11) entered blocking state [ 20.059311][ T498] br11: port 1(veth1.11) entered forwarding state [ 28.722750][ T549] [ 28.723082][ T549] ============================= [ 28.723245][ T549] WARNING: suspicious RCU usage [ 28.723397][ T549] 6.14.0-rc6-virtme #1 Not tainted [ 28.723565][ T549] ----------------------------- [ 28.723724][ T549] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage! [ 28.723992][ T549] [ 28.723992][ T549] other info that might help us debug this: [ 28.723992][ T549] [ 28.724282][ T549] [ 28.724282][ T549] rcu_scheduler_active = 2, debug_locks = 1 [ 28.724504][ T549] 1 lock held by mausezahn/549: [ 28.724666][ T549] #0: ffffffffaf95b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f0/0x18d0 [ 28.724971][ T549] [ 28.724971][ T549] stack backtrace: [ 28.725156][ T549] CPU: 3 UID: 0 PID: 549 Comm: mausezahn Not tainted 6.14.0-rc6-virtme #1 [ 28.725160][ T549] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 28.725162][ T549] Call Trace: [ 28.725165][ T549] [ 28.725167][ T549] dump_stack_lvl+0xb0/0xd0 [ 28.725176][ T549] lockdep_rcu_suspicious+0x1ea/0x280 [ 28.725187][ T549] dev_hard_start_xmit+0x2fc/0x3f0 [ 28.725198][ T549] __dev_queue_xmit+0xfaf/0x18d0 [ 28.725203][ T549] ? __pfx__copy_from_iter+0x10/0x10 [ 28.725213][ T549] ? __pfx_vlan_parse_protocol+0x10/0x10 [8021q] [ 28.725226][ T549] ? __pfx___dev_queue_xmit+0x10/0x10 [ 28.725230][ T549] ? packet_parse_headers+0x231/0x9c0 [ 28.725238][ T549] ? copy_page_from_iter+0xbd/0x120 [ 28.725243][ T549] ? __pfx_packet_parse_headers+0x10/0x10 [ 28.725248][ T549] ? skb_copy_datagram_from_iter+0x29f/0x6f0 [ 28.725263][ T549] packet_snd+0xd0c/0x19d0 [ 28.725275][ T549] ? __lock_release+0x103/0x460 [ 28.725279][ T549] ? __might_fault+0x11b/0x170 [ 28.725288][ T549] ? __pfx_packet_snd+0x10/0x10 [ 28.725290][ T549] ? trace_lock_acquire+0x14c/0x1f0 [ 28.725292][ T549] ? __might_fault+0x11b/0x170 [ 28.725299][ T549] ? lock_acquire+0x32/0xc0 [ 28.725305][ T549] ? __might_fault+0x11b/0x170 [ 28.725316][ T549] __sys_sendto+0x3c3/0x450 [ 28.725322][ T549] ? __pfx___sys_sendto+0x10/0x10 [ 28.725337][ T549] ? sock_ioctl+0x3b6/0x590 [ 28.725341][ T549] ? __pfx___lock_release+0x10/0x10 [ 28.725348][ T549] ? __pfx___up_read+0x10/0x10 [ 28.725357][ T549] ? do_user_addr_fault+0x972/0xe30 [ 28.725366][ T549] ? do_user_addr_fault+0x97c/0xe30 [ 28.725373][ T549] __x64_sys_sendto+0xe0/0x1c0 [ 28.725377][ T549] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 28.725382][ T549] do_syscall_64+0xc1/0x1d0 [ 28.725390][ T549] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 28.725396][ T549] RIP: 0033:0x7f4c6f7b1a4a [ 28.725401][ T549] 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 [ 28.725404][ T549] RSP: 002b:00007fff15d05918 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 28.725408][ T549] RAX: ffffffffffffffda RBX: 00000000214c79d0 RCX: 00007f4c6f7b1a4a [ 28.725410][ T549] RDX: 0000000000001f6a RSI: 00000000214ca8e2 RDI: 0000000000000005 [ 28.725412][ T549] RBP: 00000000214ca8e2 R08: 00007fff15d05920 R09: 0000000000000014 [ 28.725414][ T549] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 28.725416][ T549] R13: 0000000000001f6a R14: 00007fff15d05920 R15: 0000000000000000 [ 28.725432][ T549] [ 46.451235][ T623] br11: port 2(veth2.11) entered disabled state [ 46.452098][ T623] br11: port 1(veth1.11) entered disabled state [ 46.539927][ T625] br10: port 2(veth2.10) entered disabled state [ 46.541007][ T625] br10: port 1(veth1.10) entered disabled state [ 46.737196][ T629] veth2.11: left allmulticast mode [ 46.737489][ T629] veth2.11: left promiscuous mode [ 46.738066][ T629] br11: port 2(veth2.11) entered disabled state [ 47.055098][ T637] veth2.10: left allmulticast mode [ 47.055335][ T637] veth2: left allmulticast mode [ 47.055552][ T637] veth2.10: left promiscuous mode [ 47.055736][ T637] veth2: left promiscuous mode [ 47.056234][ T637] br10: port 2(veth2.10) entered disabled state [ 47.558372][ T647] veth1.11: left allmulticast mode [ 47.558634][ T647] veth1.11: left promiscuous mode [ 47.559127][ T647] br11: port 1(veth1.11) entered disabled state [ 47.880552][ T653] veth1.10: left allmulticast mode [ 47.880840][ T653] veth1: left allmulticast mode [ 47.881069][ T653] veth1.10: left promiscuous mode [ 47.881263][ T653] veth1: left promiscuous mode [ 47.881787][ T653] br10: port 1(veth1.10) entered disabled state