[ 2181.201661][T20703] ip6_gre: GRE over IPv6 tunneling driver [ 2181.380995][ T68] ip6_tunnel: g1 xmit: Local address not yet configured! [ 2181.520545][ T68] ip6_tunnel: g1 xmit: Local address not yet configured! [ 2184.143114][T20736] [ 2184.143461][T20736] ============================= [ 2184.143766][T20736] WARNING: suspicious RCU usage [ 2184.144048][T20736] 6.15.0-rc5-virtme #1 Not tainted [ 2184.144333][T20736] ----------------------------- [ 2184.144616][T20736] ./include/net/addrconf.h:347 suspicious rcu_dereference_check() usage! [ 2184.145015][T20736] [ 2184.145015][T20736] other info that might help us debug this: [ 2184.145015][T20736] [ 2184.145547][T20736] [ 2184.145547][T20736] rcu_scheduler_active = 2, debug_locks = 1 [ 2184.145973][T20736] 1 lock held by ip/20736: [ 2184.146247][T20736] #0: ffff88800d5d9430 (&tb->tb6_lock){+.-.}-{3:3}, at: ip6_route_multipath_add+0x743/0x1450 [ 2184.146819][T20736] [ 2184.146819][T20736] stack backtrace: [ 2184.147152][T20736] CPU: 3 UID: 0 PID: 20736 Comm: ip Not tainted 6.15.0-rc5-virtme #1 PREEMPT(full) [ 2184.147157][T20736] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 2184.147159][T20736] Call Trace: [ 2184.147161][T20736] [ 2184.147164][T20736] dump_stack_lvl+0xb0/0xd0 [ 2184.147181][T20736] lockdep_rcu_suspicious+0x166/0x270 [ 2184.147193][T20736] rt6_multipath_rebalance.part.0+0x70c/0x8a0 [ 2184.147203][T20736] fib6_add_rt2node+0xa36/0x2c00 [ 2184.147206][T20736] ? lockdep_hardirqs_on+0x7c/0x110 [ 2184.147212][T20736] ? _raw_spin_unlock_irqrestore+0x46/0x80 [ 2184.147227][T20736] ? __pfx_fib6_add_rt2node+0x10/0x10 [ 2184.147230][T20736] ? fib6_add_1.constprop.0+0x486/0x15e0 [ 2184.147243][T20736] fib6_add+0x38d/0xec0 [ 2184.147250][T20736] ? do_raw_spin_lock+0x130/0x270 [ 2184.147255][T20736] ? __pfx_fib6_add+0x10/0x10 [ 2184.147257][T20736] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 2184.147262][T20736] ? lock_acquire+0x10c/0x170 [ 2184.147264][T20736] ? ip6_route_multipath_add+0x743/0x1450 [ 2184.147273][T20736] ip6_route_multipath_add+0x75b/0x1450 [ 2184.147287][T20736] ? __pfx_ip6_route_multipath_add+0x10/0x10 [ 2184.147317][T20736] ? __pfx_inet6_rtm_newroute+0x10/0x10 [ 2184.147321][T20736] ? __pfx_inet6_rtm_newroute+0x10/0x10 [ 2184.147327][T20736] inet6_rtm_newroute+0xb2/0x120 [ 2184.147331][T20736] ? __pfx_inet6_rtm_newroute+0x10/0x10 [ 2184.147350][T20736] ? rtnetlink_rcv_msg+0x6ed/0xc00 [ 2184.147356][T20736] ? __lock_release+0x5d/0x170 [ 2184.147362][T20736] ? rtnetlink_rcv_msg+0x6ed/0xc00 [ 2184.147367][T20736] rtnetlink_rcv_msg+0x710/0xc00 [ 2184.147373][T20736] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 2184.147376][T20736] ? validate_chain+0x166/0x4d0 [ 2184.147393][T20736] netlink_rcv_skb+0x12f/0x360 [ 2184.147400][T20736] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 2184.147406][T20736] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 2184.147411][T20736] ? __lock_acquire+0x591/0x9d0 [ 2184.147424][T20736] ? netlink_deliver_tap+0x13e/0x340 [ 2184.147427][T20736] ? __lock_release+0x5d/0x170 [ 2184.147434][T20736] ? netlink_deliver_tap+0x13e/0x340 [ 2184.147437][T20736] ? netlink_deliver_tap+0xc3/0x340 [ 2184.147444][T20736] netlink_unicast+0x449/0x710 [ 2184.147452][T20736] ? __pfx_netlink_unicast+0x10/0x10 [ 2184.147456][T20736] ? __lock_acquire+0x591/0x9d0 [ 2184.147467][T20736] netlink_sendmsg+0x721/0xbe0 [ 2184.147476][T20736] ? __pfx_netlink_sendmsg+0x10/0x10 [ 2184.147482][T20736] ? __import_iovec+0x238/0x3c0 [ 2184.147495][T20736] ____sys_sendmsg+0x7aa/0xa10 [ 2184.147503][T20736] ? __pfx_____sys_sendmsg+0x10/0x10 [ 2184.147506][T20736] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 2184.147523][T20736] ___sys_sendmsg+0xed/0x170 [ 2184.147530][T20736] ? __pfx____sys_sendmsg+0x10/0x10 [ 2184.147534][T20736] ? __pfx_handle_pte_fault+0x10/0x10 [ 2184.147542][T20736] ? reacquire_held_locks+0xd1/0x200 [ 2184.147546][T20736] ? do_user_addr_fault+0x461/0xe00 [ 2184.147557][T20736] ? __handle_mm_fault+0x3fc/0x5e0 [ 2184.147561][T20736] ? __pfx___handle_mm_fault+0x10/0x10 [ 2184.147564][T20736] ? __lock_release+0xa8/0x170 [ 2184.147580][T20736] ? __pfx_lock_vma_under_rcu+0x10/0x10 [ 2184.147587][T20736] __sys_sendmsg+0x108/0x1a0 [ 2184.147592][T20736] ? __pfx___sys_sendmsg+0x10/0x10 [ 2184.147596][T20736] ? exc_page_fault+0x5e/0xd0 [ 2184.147605][T20736] ? do_user_addr_fault+0x959/0xe00 [ 2184.147612][T20736] ? rcu_is_watching+0x12/0xc0 [ 2184.147622][T20736] do_syscall_64+0xc1/0x1d0 [ 2184.147630][T20736] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 2184.147634][T20736] RIP: 0033:0x7fcb10a9b9a7 [ 2184.147639][T20736] Code: 0a 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10 [ 2184.147642][T20736] RSP: 002b:00007ffea9df9958 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 2184.147648][T20736] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fcb10a9b9a7 [ 2184.147650][T20736] RDX: 0000000000000000 RSI: 00007ffea9df99c0 RDI: 0000000000000005 [ 2184.147652][T20736] RBP: 00007ffea9df9d0c R08: 0000000000000038 R09: 00007ffea9df99b6 [ 2184.147654][T20736] R10: 00007ffea9dfd991 R11: 0000000000000246 R12: 00007ffea9dfacd0 [ 2184.147656][T20736] R13: 0000000068258d92 R14: 0000000000498600 R15: 00007ffea9dfd980 [ 2184.147670][T20736] [ 2188.246445][ T68] ip6_tunnel: g2 xmit: Local address not yet configured! [ 2188.378966][ T68] ip6_tunnel: g2 xmit: Local address not yet configured!