[ 12.129365][ T275] ip (275) used greatest stack depth: 24632 bytes left [ 13.723309][ T291] ip (291) used greatest stack depth: 24008 bytes left [ 13.888887][ T293] eth1: renamed from tmp [ 77.729172][ T545] ip (545) used greatest stack depth: 23632 bytes left [ 77.903586][ T547] eth1: renamed from tmp [ 138.263141][ T748] ip (748) used greatest stack depth: 23608 bytes left [ 142.019411][ T800] eth1: renamed from tmp [ 206.069374][ T1052] eth1: renamed from tmp [ 269.036199][ T1314] eth1: renamed from tmp [ 332.013722][ T1577] eth1: renamed from tmp [ 660.561468][ T2427] eth1: renamed from tmp [ 693.928378][ T2565] eth2: renamed from tmp [ 904.963804][ T3137] eth1: renamed from tmp [ 1243.053386][ T4062] eth1: renamed from tmp [ 1373.599440][ T4545] eth1: renamed from tmp [ 1407.741629][ T4710] eth1: renamed from tmp [ 1459.448435][ T4937] eth1: renamed from tmp [ 1474.995370][ T5051] eth1: renamed from tmp [ 1490.606684][ T5165] eth1: renamed from tmp [ 1506.319261][ T5279] eth1: renamed from tmp [ 1522.846607][ T5397] eth1: renamed from tmp [ 1539.363471][ T5516] eth1: renamed from tmp [ 1555.898175][ T5634] eth1: renamed from tmp [ 1572.323141][ T5752] eth1: renamed from tmp [ 1588.803019][ T5870] eth1: renamed from tmp [ 1605.319528][ T5989] eth1: renamed from tmp [ 1621.858193][ T6107] eth1: renamed from tmp [ 1638.252788][ T6225] eth1: renamed from tmp [ 1654.633697][ T6344] eth1: renamed from tmp [ 1671.214148][ T6463] eth1: renamed from tmp [ 1687.705002][ T6582] eth1: renamed from tmp [ 1704.126699][ T6700] eth1: renamed from tmp [ 1720.675547][ T6818] eth1: renamed from tmp [ 1737.151882][ T6937] eth1: renamed from tmp [ 1753.560644][ T7055] eth1: renamed from tmp [ 1769.928946][ T7173] eth1: renamed from tmp [ 1786.282774][ T7291] eth1: renamed from tmp [ 1802.713053][ T7409] eth1: renamed from tmp [ 1819.195830][ T7527] eth1: renamed from tmp [ 1835.545648][ T7645] eth1: renamed from tmp [ 1852.008636][ T7763] eth1: renamed from tmp [ 1868.423746][ T7881] eth1: renamed from tmp [ 1884.817806][ T7999] eth1: renamed from tmp [ 1901.188228][ T8117] eth1: renamed from tmp [ 1917.590688][ T8235] eth1: renamed from tmp [ 1933.977594][ T8353] eth1: renamed from tmp [ 1950.429625][ T8471] eth1: renamed from tmp [ 1966.751752][ T8590] eth1: renamed from tmp [ 2000.494320][ T8774] eth1: renamed from tmp [ 2051.391621][ T8938] [ 2051.391879][ T8938] ============================= [ 2051.392061][ T8938] WARNING: suspicious RCU usage [ 2051.392222][ T8938] 6.13.0-rc3-virtme #1 Not tainted [ 2051.392382][ T8938] ----------------------------- [ 2051.392779][ T8938] net/core/dev.c:876 RCU-list traversed in non-reader section!! [ 2051.393028][ T8938] [ 2051.393028][ T8938] other info that might help us debug this: [ 2051.393028][ T8938] [ 2051.393342][ T8938] [ 2051.393342][ T8938] rcu_scheduler_active = 2, debug_locks = 1 [ 2051.393613][ T8938] 1 lock held by ping6/8938: [ 2051.393774][ T8938] #0: ffff888002399418 (sk_lock-AF_INET6){+.+.}-{0:0}, at: udpv6_connect+0x25/0x250 [ 2051.394085][ T8938] [ 2051.394085][ T8938] stack backtrace: [ 2051.394286][ T8938] CPU: 3 UID: 0 PID: 8938 Comm: ping6 Not tainted 6.13.0-rc3-virtme #1 [ 2051.394526][ T8938] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 2051.394727][ T8938] Call Trace: [ 2051.394855][ T8938] [ 2051.394942][ T8938] dump_stack_lvl+0xb0/0xd0 [ 2051.395109][ T8938] lockdep_rcu_suspicious+0x1ea/0x280 [ 2051.395276][ T8938] dev_get_by_index_rcu+0x14f/0x190 [ 2051.395443][ T8938] ip6_create_rt_oif_rcu+0x4f/0x4a0 [ 2051.395603][ T8938] ? ip6_route_output_flags+0x2ab/0x480 [ 2051.395770][ T8938] ip6_dst_lookup_tail.constprop.0+0x3cb/0xa00 [ 2051.395971][ T8938] ? ip6_datagram_dst_update+0x4ed/0xc60 [ 2051.396138][ T8938] ip6_dst_lookup_flow+0x88/0x190 [ 2051.396300][ T8938] ? __pfx_ip6_dst_lookup_flow+0x10/0x10 [ 2051.396464][ T8938] ? ip6_datagram_dst_update+0x4ed/0xc60 [ 2051.396626][ T8938] ip6_datagram_dst_update+0x52d/0xc60 [ 2051.396789][ T8938] ? __pfx_ip6_datagram_dst_update+0x10/0x10 [ 2051.397012][ T8938] ? __ip6_datagram_connect+0x4ee/0x12f0 [ 2051.397174][ T8938] __ip6_datagram_connect+0x4ee/0x12f0 [ 2051.397336][ T8938] ? __lock_release+0x103/0x460 [ 2051.397505][ T8938] ? __pfx___ip6_datagram_connect+0x10/0x10 [ 2051.397712][ T8938] ? mark_held_locks+0x9e/0xe0 [ 2051.397881][ T8938] ? __pfx_inet_dgram_connect+0x10/0x10 [ 2051.398043][ T8938] ? udpv6_connect+0x33/0x250 [ 2051.398204][ T8938] udpv6_connect+0x33/0x250 [ 2051.398362][ T8938] ? inet_dgram_connect+0x128/0x2e0 [ 2051.398524][ T8938] __sys_connect+0x1a6/0x270 [ 2051.398689][ T8938] ? __pfx___sys_connect+0x10/0x10 [ 2051.398858][ T8938] ? __pfx_slab_free_after_rcu_debug+0x10/0x10 [ 2051.399058][ T8938] ? trace_rcu_segcb_stats+0x36/0x1e0 [ 2051.399222][ T8938] ? __sys_setsockopt+0xec/0x160 [ 2051.399398][ T8938] __x64_sys_connect+0x72/0xb0 [ 2051.399554][ T8938] do_syscall_64+0xc1/0x1d0 [ 2051.399713][ T8938] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 2051.399904][ T8938] RIP: 0033:0x7f3d4ab295c7 [ 2051.400068][ T8938] Code: 0a 00 f7 d8 64 89 02 b8 ff ff ff ff eb bc 0f 1f 44 00 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2a 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 18 89 54 24 0c 48 89 34 24 89 [ 2051.400608][ T8938] RSP: 002b:00007fffae349ce8 EFLAGS: 00000246 ORIG_RAX: 000000000000002a [ 2051.400879][ T8938] RAX: ffffffffffffffda RBX: 0000000000000020 RCX: 00007f3d4ab295c7 [ 2051.401112][ T8938] RDX: 000000000000001c RSI: 000000000041861c RDI: 0000000000000006 [ 2051.401349][ T8938] RBP: 00007fffae349fd0 R08: 00000000161ac4d0 R09: 0000000000000000 [ 2051.401583][ T8938] R10: 00007f3d4a9e1598 R11: 0000000000000246 R12: 00007fffae34a328 [ 2051.401833][ T8938] R13: 000000000040305a R14: 0000000000415dd0 R15: 00007f3d4ac50000 [ 2051.402091][ T8938] [ 2087.558863][ T9099] eth1: renamed from tmp [ 2174.619099][ T9427] eth1: renamed from tmp [ 2261.818578][ T9765] eth1: renamed from tmp [ 2349.179279][T10103] eth1: renamed from tmp [ 2629.995851][T10888] eth1: renamed from tmp [ 2675.845075][T11070] eth2: renamed from tmp [ 2884.924682][T11660] eth1: renamed from tmp [ 3228.827758][T12699] eth1: renamed from tmp [ 3382.040614][T13256] eth1: renamed from tmp [ 3408.636648][T13400] eth1: renamed from tmp [ 3445.803534][T13586] eth1: renamed from tmp [ 3461.316734][T13700] eth1: renamed from tmp [ 3474.708049][T13815] eth1: renamed from tmp [ 3491.173579][T13933] eth1: renamed from tmp [ 3507.514185][T14051] eth1: renamed from tmp [ 3524.054526][T14169] eth1: renamed from tmp [ 3540.534669][T14287] eth1: renamed from tmp [ 3557.048661][T14405] eth1: renamed from tmp [ 3573.535881][T14523] eth1: renamed from tmp [ 3590.160216][T14640] eth1: renamed from tmp [ 3606.681760][T14758] eth1: renamed from tmp [ 3623.161690][T14877] eth1: renamed from tmp [ 3639.633943][T14995] eth1: renamed from tmp [ 3656.096355][T15113] eth1: renamed from tmp [ 3672.609917][T15231] eth1: renamed from tmp [ 3689.094553][T15349] eth1: renamed from tmp [ 3705.567546][T15467] eth1: renamed from tmp [ 3722.077002][T15585] eth1: renamed from tmp [ 3738.414467][T15704] eth1: renamed from tmp [ 3754.833595][T15822] eth1: renamed from tmp [ 3771.254958][T15940] eth1: renamed from tmp [ 3787.711683][T16058] eth1: renamed from tmp [ 3804.091061][T16176] eth1: renamed from tmp [ 3820.523162][T16294] eth1: renamed from tmp [ 3836.874536][T16411] eth1: renamed from tmp [ 3853.259153][T16528] eth1: renamed from tmp [ 3869.615598][T16646] eth1: renamed from tmp [ 3886.040840][T16764] eth1: renamed from tmp [ 3902.439566][T16882] eth1: renamed from tmp [ 3918.787198][T17001] eth1: renamed from tmp [ 3935.176710][T17119] eth1: renamed from tmp [ 3951.577555][T17237] eth1: renamed from tmp [ 3967.983493][T17355] eth1: renamed from tmp [ 3984.435636][T17474] eth1: renamed from tmp [ 4000.862890][T17592] eth1: renamed from tmp [ 4017.375504][T17711] eth1: renamed from tmp [ 4033.990693][T17829] eth1: renamed from tmp [ 4050.618756][T17948] eth1: renamed from tmp [ 4067.193619][T18066] eth1: renamed from tmp [ 4083.691689][T18183] eth1: renamed from tmp [ 4100.216186][T18300] eth1: renamed from tmp [ 4116.670461][T18418] eth1: renamed from tmp [ 4133.136676][T18536] eth1: renamed from tmp [ 4149.972763][T18654] eth1: renamed from tmp [ 4167.118179][T18772] eth1: renamed from tmp [ 4183.826635][T18890] eth1: renamed from tmp [ 4200.941035][T19008] eth1: renamed from tmp [ 4217.899824][T19126] eth1: renamed from tmp [ 4253.016770][T19307] eth1: renamed from tmp [ 4257.327791][T19354] br0: port 1(eth1) entered blocking state [ 4257.328247][T19354] br0: port 1(eth1) entered disabled state [ 4257.328473][T19354] eth1: entered allmulticast mode [ 4257.329658][T19354] eth1: entered promiscuous mode [ 4257.623385][T19358] br0: port 1(eth1) entered blocking state [ 4257.623752][T19358] br0: port 1(eth1) entered forwarding state [ 4257.772571][T19360] br0: port 1(eth1) entered disabled state [ 4257.774743][T19360] br0: port 1(eth1) entered blocking state [ 4257.774989][T19360] br0: port 1(eth1) entered forwarding state [ 4268.949529][T19389] br0: port 1(eth1) entered disabled state [ 4268.951560][T19389] br0: port 1(eth1) entered blocking state [ 4268.951917][T19389] br0: port 1(eth1) entered forwarding state [ 4277.278214][T19434] eth1: left allmulticast mode [ 4277.278451][T19434] eth1: left promiscuous mode [ 4277.278762][T19434] br0: port 1(eth1) entered disabled state [ 4284.334515][T19513] eth1: renamed from tmp [ 4284.700692][T19517] eth2: renamed from tmp [ 4307.197775][T19660] eth1: renamed from tmp