[ 877.922290][ T4492] gre: GRE over IPv4 demultiplexer driver [ 877.993992][ T4492] ip6_gre: GRE over IPv6 tunneling driver [ 878.190768][ T12] ip6_tunnel: g1 xmit: Local address not yet configured! [ 878.393408][ T12] ip6_tunnel: g1 xmit: Local address not yet configured! [ 881.197156][ T4524] [ 881.197537][ T4524] ============================= [ 881.197824][ T4524] WARNING: suspicious RCU usage [ 881.198117][ T4524] 6.15.0-rc5-virtme #1 Not tainted [ 881.198385][ T4524] ----------------------------- [ 881.198657][ T4524] ./include/net/addrconf.h:347 suspicious rcu_dereference_check() usage! [ 881.199420][ T4524] [ 881.199420][ T4524] other info that might help us debug this: [ 881.199420][ T4524] [ 881.199940][ T4524] [ 881.199940][ T4524] rcu_scheduler_active = 2, debug_locks = 1 [ 881.200353][ T4524] 1 lock held by ip/4524: [ 881.200571][ T4524] #0: ffff88800b86d030 (&tb->tb6_lock){+...}-{3:3}, at: ip6_route_multipath_add+0x743/0x1450 [ 881.201122][ T4524] [ 881.201122][ T4524] stack backtrace: [ 881.201470][ T4524] CPU: 1 UID: 0 PID: 4524 Comm: ip Not tainted 6.15.0-rc5-virtme #1 PREEMPT(full) [ 881.201475][ T4524] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 881.201477][ T4524] Call Trace: [ 881.201480][ T4524] [ 881.201483][ T4524] dump_stack_lvl+0xb0/0xd0 [ 881.201492][ T4524] lockdep_rcu_suspicious+0x166/0x270 [ 881.201504][ T4524] rt6_multipath_rebalance.part.0+0x70c/0x8a0 [ 881.201513][ T4524] fib6_add_rt2node+0xa36/0x2c00 [ 881.201516][ T4524] ? lockdep_hardirqs_on+0x7c/0x110 [ 881.201523][ T4524] ? _raw_spin_unlock_irqrestore+0x46/0x80 [ 881.201538][ T4524] ? __pfx_fib6_add_rt2node+0x10/0x10 [ 881.201541][ T4524] ? fib6_add_1.constprop.0+0x486/0x15e0 [ 881.201554][ T4524] fib6_add+0x38d/0xec0 [ 881.201561][ T4524] ? do_raw_spin_lock+0x130/0x270 [ 881.201565][ T4524] ? __pfx_fib6_add+0x10/0x10 [ 881.201568][ T4524] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 881.201572][ T4524] ? lock_acquire+0x10c/0x170 [ 881.201575][ T4524] ? ip6_route_multipath_add+0x743/0x1450 [ 881.201584][ T4524] ip6_route_multipath_add+0x75b/0x1450 [ 881.201598][ T4524] ? __pfx_ip6_route_multipath_add+0x10/0x10 [ 881.201628][ T4524] ? __pfx_inet6_rtm_newroute+0x10/0x10 [ 881.201632][ T4524] ? __pfx_inet6_rtm_newroute+0x10/0x10 [ 881.201637][ T4524] inet6_rtm_newroute+0xb2/0x120 [ 881.201642][ T4524] ? __pfx_inet6_rtm_newroute+0x10/0x10 [ 881.201660][ T4524] ? rtnetlink_rcv_msg+0x6ed/0xc00 [ 881.201665][ T4524] ? __lock_release+0x5d/0x170 [ 881.201672][ T4524] ? rtnetlink_rcv_msg+0x6ed/0xc00 [ 881.201676][ T4524] rtnetlink_rcv_msg+0x710/0xc00 [ 881.201682][ T4524] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 881.201685][ T4524] ? validate_chain+0x166/0x4d0 [ 881.201701][ T4524] netlink_rcv_skb+0x12f/0x360 [ 881.201707][ T4524] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 881.201713][ T4524] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 881.201717][ T4524] ? __lock_acquire+0x591/0x9d0 [ 881.201731][ T4524] ? netlink_deliver_tap+0x13e/0x340 [ 881.201734][ T4524] ? __lock_release+0x5d/0x170 [ 881.201740][ T4524] ? netlink_deliver_tap+0x13e/0x340 [ 881.201744][ T4524] ? netlink_deliver_tap+0xc3/0x340 [ 881.201751][ T4524] netlink_unicast+0x449/0x710 [ 881.201759][ T4524] ? __pfx_netlink_unicast+0x10/0x10 [ 881.201764][ T4524] ? __lock_acquire+0x591/0x9d0 [ 881.201774][ T4524] netlink_sendmsg+0x721/0xbe0 [ 881.201783][ T4524] ? __pfx_netlink_sendmsg+0x10/0x10 [ 881.201789][ T4524] ? __import_iovec+0x238/0x3c0 [ 881.201801][ T4524] ____sys_sendmsg+0x7aa/0xa10 [ 881.201809][ T4524] ? __pfx_____sys_sendmsg+0x10/0x10 [ 881.201812][ T4524] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 881.201828][ T4524] ___sys_sendmsg+0xed/0x170 [ 881.201834][ T4524] ? __pfx____sys_sendmsg+0x10/0x10 [ 881.201839][ T4524] ? __pfx_handle_pte_fault+0x10/0x10 [ 881.201846][ T4524] ? reacquire_held_locks+0xd1/0x200 [ 881.201849][ T4524] ? do_user_addr_fault+0x461/0xe00 [ 881.201860][ T4524] ? __handle_mm_fault+0x3fc/0x5e0 [ 881.201864][ T4524] ? __pfx___handle_mm_fault+0x10/0x10 [ 881.201867][ T4524] ? __lock_release+0xa8/0x170 [ 881.201883][ T4524] ? __pfx_lock_vma_under_rcu+0x10/0x10 [ 881.201890][ T4524] __sys_sendmsg+0x108/0x1a0 [ 881.201894][ T4524] ? __pfx___sys_sendmsg+0x10/0x10 [ 881.201899][ T4524] ? exc_page_fault+0x5e/0xd0 [ 881.201908][ T4524] ? do_user_addr_fault+0x959/0xe00 [ 881.201914][ T4524] ? rcu_is_watching+0x12/0xc0 [ 881.201924][ T4524] do_syscall_64+0xc1/0x1d0 [ 881.201931][ T4524] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 881.201936][ T4524] RIP: 0033:0x7fe7e8d6d9a7 [ 881.201941][ T4524] 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 [ 881.201944][ T4524] RSP: 002b:00007ffd8e433158 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 881.201948][ T4524] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fe7e8d6d9a7 [ 881.201950][ T4524] RDX: 0000000000000000 RSI: 00007ffd8e4331c0 RDI: 0000000000000005 [ 881.201952][ T4524] RBP: 00007ffd8e43350c R08: 0000000000000038 R09: 00007ffd8e4331b6 [ 881.201954][ T4524] R10: 00007ffd8e437991 R11: 0000000000000246 R12: 00007ffd8e4344d0 [ 881.201955][ T4524] R13: 0000000068258add R14: 0000000000498600 R15: 00007ffd8e437980 [ 881.201970][ T4524] [ 884.259977][ T4551] GACT probability NOT on [ 885.858156][ T12] ip6_tunnel: g2 xmit: Local address not yet configured! [ 885.988766][ T12] ip6_tunnel: g2 xmit: Local address not yet configured! [ 1038.582025][ C2] clocksource: Long readout interval, skipping watchdog check: cs_nsec: 1119599898 wd_nsec: 1119599534