[ 1248.306795][T13202] 
[ 1248.307037][T13202] =============================
[ 1248.307337][T13202] WARNING: suspicious RCU usage
[ 1248.308374][T13202] 6.12.0-virtme #1 Not tainted
[ 1248.308693][T13202] -----------------------------
[ 1248.308987][T13202] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1248.309409][T13202] 
[ 1248.309409][T13202] other info that might help us debug this:
[ 1248.309409][T13202] 
[ 1248.309979][T13202] 
[ 1248.309979][T13202] rcu_scheduler_active = 2, debug_locks = 1
[ 1248.310391][T13202] no locks held by smcrouted/13202.
[ 1248.310700][T13202] 
[ 1248.310700][T13202] stack backtrace:
[ 1248.311060][T13202] CPU: 2 UID: 0 PID: 13202 Comm: smcrouted Not tainted 6.12.0-virtme #1
[ 1248.311471][T13202] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1248.311809][T13202] Call Trace:
[ 1248.312017][T13202]  <TASK>
[ 1248.312164][T13202]  dump_stack_lvl+0xb0/0xd0
[ 1248.312444][T13202]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1248.312720][T13202]  ip6mr_get_table+0x142/0x190
[ 1248.312996][T13202]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1248.313275][T13202]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1248.313630][T13202]  ? __lock_release+0x103/0x460
[ 1248.313896][T13202]  ? __might_fault+0x11b/0x170
[ 1248.314178][T13202]  ? trace_lock_acquire+0x14d/0x1f0
[ 1248.314455][T13202]  ? __might_fault+0xc3/0x170
[ 1248.314722][T13202]  ? lock_acquire+0x32/0xc0
[ 1248.314989][T13202]  ? __might_fault+0xc3/0x170
[ 1248.315264][T13202]  ? __might_fault+0x11b/0x170
[ 1248.315543][T13202]  do_ipv6_setsockopt+0x705/0x34e0
[ 1248.315817][T13202]  ? validate_chain+0x130/0xae0
[ 1248.316092][T13202]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1248.316362][T13202]  ? __pfx_validate_chain+0x10/0x10
[ 1248.316629][T13202]  ? hlock_class+0x4e/0x130
[ 1248.316898][T13202]  ? mark_lock+0x38/0x3e0
[ 1248.317114][T13202]  ? __lock_acquire+0xb9a/0x1680
[ 1248.317404][T13202]  ? find_held_lock+0x2c/0x110
[ 1248.317675][T13202]  ? __lock_release+0x103/0x460
[ 1248.317940][T13202]  ? __create_object+0x5e/0xb0
[ 1248.318214][T13202]  ? __pfx___lock_release+0x10/0x10
[ 1248.318481][T13202]  ? __pfx_validate_chain+0x10/0x10
[ 1248.318745][T13202]  ? hlock_class+0x4e/0x130
[ 1248.319012][T13202]  ? mark_lock+0x38/0x3e0
[ 1248.319220][T13202]  ? ipv6_setsockopt+0x7f/0xe0
[ 1248.319484][T13202]  ipv6_setsockopt+0x7f/0xe0
[ 1248.319754][T13202]  rawv6_setsockopt+0xb7/0x550
[ 1248.320021][T13202]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1248.320283][T13202]  ? find_held_lock+0x2c/0x110
[ 1248.320555][T13202]  ? kfree+0x2d/0x340
[ 1248.320755][T13202]  ? __lock_release+0x103/0x460
[ 1248.321019][T13202]  ? fd_install+0x1d1/0x5a0
[ 1248.321297][T13202]  do_sock_setsockopt+0x149/0x3a0
[ 1248.321576][T13202]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1248.321876][T13202]  __sys_setsockopt+0xec/0x160
[ 1248.322152][T13202]  __x64_sys_setsockopt+0xbd/0x160
[ 1248.322421][T13202]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1248.322760][T13202]  do_syscall_64+0xc1/0x1d0
[ 1248.323039][T13202]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1248.323380][T13202] RIP: 0033:0x7f198db2c91e
[ 1248.323659][T13202] Code: 0f 1f 40 00 48 8b 15 e1 94 0a 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b1 0f 1f 00 f3 0f 1e fa 49 89 ca b8 36 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 0a c3 66 0f 1f 84 00 00 00 00 00 48 8b 15 a9
[ 1248.324620][T13202] RSP: 002b:00007ffd6bfdb408 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1248.325031][T13202] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f198db2c91e
[ 1248.325434][T13202] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1248.325837][T13202] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000
[ 1248.326183][T13202] R10: 00007ffd6bfdb42c R11: 0000000000000246 R12: 0000000000000000
[ 1248.326587][T13202] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f198dc31000
[ 1248.326950][T13202]  </TASK>
[ 1248.332433][T13202] veth0: entered allmulticast mode
[ 1248.333336][T13202] veth1: entered allmulticast mode
[ 1248.333959][T13202] veth2: entered allmulticast mode
[ 1248.334558][T13202] veth3: entered allmulticast mode
[ 1248.335150][T13202] veth4: entered allmulticast mode
[ 1248.335754][T13202] veth5: entered allmulticast mode
[ 1275.487758][T13202] veth0: left allmulticast mode
[ 1275.488085][T13202] veth1: left allmulticast mode
[ 1275.488337][T13202] veth2: left allmulticast mode
[ 1275.488592][T13202] veth3: left allmulticast mode
[ 1275.488840][T13202] veth4: left allmulticast mode
[ 1275.489081][T13202] veth5: left allmulticast mode